# Copyright (c) 2010-2012 OpenStack Foundation # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or # implied. # See the License for the specific language governing permissions and # limitations under the License. """ Tests for swift.container.backend """ import base64 import errno import os import inspect import shutil import unittest from time import sleep, time from uuid import uuid4 import random from collections import defaultdict from contextlib import contextmanager import sqlite3 import string import pickle import json import itertools import six from swift.common.exceptions import LockTimeout from swift.container.backend import ContainerBroker, \ update_new_item_from_existing, UNSHARDED, SHARDING, SHARDED, \ COLLAPSED, SHARD_LISTING_STATES, SHARD_UPDATE_STATES, sift_shard_ranges from swift.common.db import DatabaseAlreadyExists, GreenDBConnection, \ TombstoneReclaimer from swift.common.request_helpers import get_reserved_name from swift.common.utils import Timestamp, encode_timestamps, hash_path, \ ShardRange, make_db_file_path, md5, ShardRangeList from swift.common.storage_policy import POLICIES import mock from test import annotate_failure from test.debug_logger import debug_logger from test.unit import (patch_policies, with_tempdir, make_timestamp_iter, EMPTY_ETAG, mock_timestamp_now) from test.unit.common import test_db class TestContainerBroker(unittest.TestCase): """Tests for ContainerBroker""" expected_db_tables = {'outgoing_sync', 'incoming_sync', 'object', 'sqlite_sequence', 'policy_stat', 'container_info', 'shard_range'} def setUp(self): self.ts = make_timestamp_iter() def _assert_shard_ranges(self, broker, expected, include_own=False): actual = broker.get_shard_ranges(include_deleted=True, include_own=include_own) self.assertEqual([dict(sr) for sr in expected], [dict(sr) for sr in actual]) def test_creation(self): # Test ContainerBroker.__init__ broker = ContainerBroker(':memory:', account='a', container='c') self.assertEqual(broker._db_file, ':memory:') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: curs = conn.cursor() curs.execute('SELECT 1') self.assertEqual(curs.fetchall()[0][0], 1) curs.execute("SELECT name FROM sqlite_master WHERE type='table';") self.assertEqual(self.expected_db_tables, {row[0] for row in curs.fetchall()}) # check the update trigger broker.put_object('blah', Timestamp.now().internal, 0, 'text/plain', 'etag', 0, 0) with broker.get() as conn: with self.assertRaises(sqlite3.DatabaseError) as cm: conn.execute('UPDATE object SET name="blah";') self.assertIn('UPDATE not allowed', str(cm.exception)) if 'shard_range' in self.expected_db_tables: # check the update trigger broker.merge_shard_ranges(broker.get_own_shard_range()) with broker.get() as conn: with self.assertRaises(sqlite3.DatabaseError) as cm: conn.execute('UPDATE shard_range SET name="blah";') self.assertIn('UPDATE not allowed', str(cm.exception)) @patch_policies def test_storage_policy_property(self): for policy in POLICIES: broker = ContainerBroker(':memory:', account='a', container='policy_%s' % policy.name) broker.initialize(next(self.ts).internal, policy.idx) with broker.get() as conn: try: conn.execute('''SELECT storage_policy_index FROM container_stat''') except Exception: is_migrated = False else: is_migrated = True if not is_migrated: # pre spi tests don't set policy on initialize broker.set_storage_policy_index(policy.idx) self.assertEqual(policy.idx, broker.storage_policy_index) # make sure it's cached with mock.patch.object(broker, 'get'): self.assertEqual(policy.idx, broker.storage_policy_index) def test_exception(self): # Test ContainerBroker throwing a conn away after # unhandled exception first_conn = None broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: first_conn = conn try: with broker.get() as conn: self.assertEqual(first_conn, conn) raise Exception('OMG') except Exception: pass self.assertTrue(broker.conn is None) @with_tempdir @mock.patch("swift.container.backend.ContainerBroker.get") def test_is_old_enough_to_reclaim(self, tempdir, mocked_get): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) def do_test(now, reclaim_age, put_ts, delete_ts, expected): mocked_get.return_value.\ __enter__.return_value.\ execute.return_value.\ fetchone.return_value = dict(delete_timestamp=delete_ts, put_timestamp=put_ts) self.assertEqual(expected, broker.is_old_enough_to_reclaim(now, reclaim_age)) now_time = time() tests = ( # (now, reclaim_age, put_ts, del_ts, expected), (0, 0, 0, 0, False), # Never deleted (now_time, 100, now_time - 200, 0, False), # Deleted ts older the put_ts (now_time, 100, now_time - 150, now_time - 200, False), # not reclaim_age yet (now_time, 100, now_time - 150, now_time - 50, False), # right on reclaim doesn't work (now_time, 100, now_time - 150, now_time - 100, False), # put_ts wins over del_ts (now_time, 100, now_time - 150, now_time - 150, False), # good case, reclaim > delete_ts > put_ts (now_time, 100, now_time - 150, now_time - 125, True)) for test in tests: do_test(*test) @with_tempdir def test_is_reclaimable(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) self.assertFalse(broker.is_reclaimable(float(next(self.ts)), 0)) broker.delete_db(next(self.ts).internal) self.assertFalse(broker.is_reclaimable(float(next(self.ts)), 604800)) self.assertTrue(broker.is_reclaimable(float(next(self.ts)), 0)) # adding a shard range makes us unreclaimable sr = ShardRange('.shards_a/shard_c', next(self.ts), object_count=0) broker.merge_shard_ranges([sr]) self.assertFalse(broker.is_reclaimable(float(next(self.ts)), 0)) # ... but still "deleted" self.assertTrue(broker.is_deleted()) # ... until the shard range is deleted sr.set_deleted(next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.is_reclaimable(float(next(self.ts)), 0)) # adding an object makes us unreclaimable obj = {'name': 'o', 'created_at': next(self.ts).internal, 'size': 0, 'content_type': 'text/plain', 'etag': EMPTY_ETAG, 'deleted': 0} broker.merge_items([dict(obj)]) self.assertFalse(broker.is_reclaimable(float(next(self.ts)), 0)) # ... and "not deleted" self.assertFalse(broker.is_deleted()) @with_tempdir def test_sharding_state_is_not_reclaimable(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) broker.enable_sharding(next(self.ts)) broker.set_sharding_state() broker.delete_db(next(self.ts).internal) self.assertTrue(broker.is_deleted()) # we won't reclaim in SHARDING state self.assertEqual(SHARDING, broker.get_db_state()) self.assertFalse(broker.is_reclaimable(float(next(self.ts)), 0)) # ... but if we find one stuck like this it's easy enough to fix broker.set_sharded_state() self.assertTrue(broker.is_reclaimable(float(next(self.ts)), 0)) @with_tempdir def test_is_deleted(self, tempdir): # Test ContainerBroker.is_deleted() and get_info_is_deleted() db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) self.assertFalse(broker.is_deleted()) broker.delete_db(next(self.ts).internal) self.assertTrue(broker.is_deleted()) def check_object_counted(broker_to_test, broker_with_object): obj = {'name': 'o', 'created_at': next(self.ts).internal, 'size': 0, 'content_type': 'text/plain', 'etag': EMPTY_ETAG, 'deleted': 0} broker_with_object.merge_items([dict(obj)]) self.assertFalse(broker_to_test.is_deleted()) info, deleted = broker_to_test.get_info_is_deleted() self.assertFalse(deleted) self.assertEqual(1, info['object_count']) obj.update({'created_at': next(self.ts).internal, 'deleted': 1}) broker_with_object.merge_items([dict(obj)]) self.assertTrue(broker_to_test.is_deleted()) info, deleted = broker_to_test.get_info_is_deleted() self.assertTrue(deleted) self.assertEqual(0, info['object_count']) def check_object_not_counted(broker): obj = {'name': 'o', 'created_at': next(self.ts).internal, 'size': 0, 'content_type': 'text/plain', 'etag': EMPTY_ETAG, 'deleted': 0} broker.merge_items([dict(obj)]) self.assertTrue(broker.is_deleted()) info, deleted = broker.get_info_is_deleted() self.assertTrue(deleted) self.assertEqual(0, info['object_count']) obj.update({'created_at': next(self.ts).internal, 'deleted': 1}) broker.merge_items([dict(obj)]) self.assertTrue(broker.is_deleted()) info, deleted = broker.get_info_is_deleted() self.assertTrue(deleted) self.assertEqual(0, info['object_count']) def check_shard_ranges_not_counted(): sr = ShardRange('.shards_a/shard_c', next(self.ts), object_count=0) sr.update_meta(13, 99, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.is_deleted()) info, deleted = broker.get_info_is_deleted() self.assertTrue(deleted) self.assertEqual(0, info['object_count']) def check_shard_ranges_counted(): sr = ShardRange('.shards_a/shard_c', next(self.ts), object_count=0) sr.update_meta(13, 99, meta_timestamp=next(self.ts)) counted_states = (ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHRINKING) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) expected = state not in counted_states self.assertEqual(expected, broker.is_deleted()) info, deleted = broker.get_info_is_deleted() self.assertEqual(expected, deleted) self.assertEqual(0 if expected else 13, info['object_count']) sr.update_meta(0, 0, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.is_deleted()) info, deleted = broker.get_info_is_deleted() self.assertTrue(deleted) self.assertEqual(0, info['object_count']) # unsharded check_object_counted(broker, broker) check_shard_ranges_not_counted() # move to sharding state broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) self.assertTrue(broker.is_deleted()) # check object in retiring db is considered check_object_counted(broker, broker.get_brokers()[0]) self.assertTrue(broker.is_deleted()) check_shard_ranges_not_counted() # misplaced object in fresh db is not considered check_object_not_counted(broker) # move to sharded state self.assertTrue(broker.set_sharded_state()) check_object_not_counted(broker) check_shard_ranges_counted() # own shard range has no influence own_sr = broker.get_own_shard_range() own_sr.update_meta(3, 4, meta_timestamp=next(self.ts)) broker.merge_shard_ranges([own_sr]) self.assertTrue(broker.is_deleted()) @with_tempdir def test_empty(self, tempdir): # Test ContainerBroker.empty db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) self.assertTrue(broker.is_root_container()) def check_object_counted(broker_to_test, broker_with_object): obj = {'name': 'o', 'created_at': next(self.ts).internal, 'size': 0, 'content_type': 'text/plain', 'etag': EMPTY_ETAG, 'deleted': 0} broker_with_object.merge_items([dict(obj)]) self.assertFalse(broker_to_test.empty()) # and delete it obj.update({'created_at': next(self.ts).internal, 'deleted': 1}) broker_with_object.merge_items([dict(obj)]) self.assertTrue(broker_to_test.empty()) def check_shard_ranges_not_counted(): sr = ShardRange('.shards_a/shard_c', next(self.ts), object_count=0) sr.update_meta(13, 99, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.empty()) # empty other shard ranges do not influence result sr.update_meta(0, 0, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.empty()) self.assertTrue(broker.empty()) check_object_counted(broker, broker) check_shard_ranges_not_counted() # own shard range is not considered for object count own_sr = broker.get_own_shard_range() self.assertEqual(0, own_sr.object_count) broker.merge_shard_ranges([own_sr]) self.assertTrue(broker.empty()) broker.put_object('o', next(self.ts).internal, 0, 'text/plain', EMPTY_ETAG) own_sr = broker.get_own_shard_range() self.assertEqual(0, own_sr.object_count) broker.merge_shard_ranges([own_sr]) self.assertFalse(broker.empty()) broker.delete_object('o', next(self.ts).internal) self.assertTrue(broker.empty()) # have own shard range but in state ACTIVE self.assertEqual(ShardRange.ACTIVE, own_sr.state) check_object_counted(broker, broker) check_shard_ranges_not_counted() def check_shard_ranges_counted(): # other shard range is considered sr = ShardRange('.shards_a/shard_c', next(self.ts), object_count=0) sr.update_meta(13, 99, meta_timestamp=next(self.ts)) counted_states = (ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHRINKING) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertEqual(state not in counted_states, broker.empty()) # empty other shard ranges do not influence result sr.update_meta(0, 0, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.empty()) # enable sharding broker.enable_sharding(next(self.ts)) check_object_counted(broker, broker) check_shard_ranges_counted() # move to sharding state self.assertTrue(broker.set_sharding_state()) # check object in retiring db is considered check_object_counted(broker, broker.get_brokers()[0]) self.assertTrue(broker.empty()) # as well as misplaced objects in fresh db check_object_counted(broker, broker) check_shard_ranges_counted() # move to sharded state self.assertTrue(broker.set_sharded_state()) self.assertTrue(broker.empty()) check_object_counted(broker, broker) check_shard_ranges_counted() # own shard range still has no influence own_sr = broker.get_own_shard_range() own_sr.update_meta(3, 4, meta_timestamp=next(self.ts)) broker.merge_shard_ranges([own_sr]) self.assertTrue(broker.empty()) @with_tempdir def test_empty_old_style_shard_container(self, tempdir): # Test ContainerBroker.empty for a shard container where shard range # usage should not be considered db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='.shards_a', container='cc') broker.initialize(next(self.ts).internal, 0) broker.set_sharding_sysmeta('Root', 'a/c') self.assertFalse(broker.is_root_container()) def check_object_counted(broker_to_test, broker_with_object): obj = {'name': 'o', 'created_at': next(self.ts).internal, 'size': 0, 'content_type': 'text/plain', 'etag': EMPTY_ETAG, 'deleted': 0} broker_with_object.merge_items([dict(obj)]) self.assertFalse(broker_to_test.empty()) # and delete it obj.update({'created_at': next(self.ts).internal, 'deleted': 1}) broker_with_object.merge_items([dict(obj)]) self.assertTrue(broker_to_test.empty()) self.assertTrue(broker.empty()) check_object_counted(broker, broker) # own shard range is not considered for object count own_sr = broker.get_own_shard_range() self.assertEqual(0, own_sr.object_count) broker.merge_shard_ranges([own_sr]) self.assertTrue(broker.empty()) broker.put_object('o', next(self.ts).internal, 0, 'text/plain', EMPTY_ETAG) own_sr = broker.get_own_shard_range() self.assertEqual(0, own_sr.object_count) broker.merge_shard_ranges([own_sr]) self.assertFalse(broker.empty()) broker.delete_object('o', next(self.ts).internal) self.assertTrue(broker.empty()) def check_shard_ranges_not_counted(): sr = ShardRange('.shards_a/shard_c', next(self.ts), object_count=0) sr.update_meta(13, 99, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.empty()) # empty other shard ranges do not influence result sr.update_meta(0, 0, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.empty()) check_shard_ranges_not_counted() # move to sharding state broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) # check object in retiring db is considered check_object_counted(broker, broker.get_brokers()[0]) self.assertTrue(broker.empty()) # as well as misplaced objects in fresh db check_object_counted(broker, broker) check_shard_ranges_not_counted() # move to sharded state self.assertTrue(broker.set_sharded_state()) self.assertTrue(broker.empty()) check_object_counted(broker, broker) check_shard_ranges_not_counted() # own shard range still has no influence own_sr = broker.get_own_shard_range() own_sr.update_meta(3, 4, meta_timestamp=next(self.ts)) broker.merge_shard_ranges([own_sr]) self.assertTrue(broker.empty()) @with_tempdir def test_empty_shard_container(self, tempdir): # Test ContainerBroker.empty for a shard container where shard range # usage should not be considered db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='.shards_a', container='cc') broker.initialize(next(self.ts).internal, 0) broker.set_sharding_sysmeta('Quoted-Root', 'a/c') self.assertFalse(broker.is_root_container()) self.assertEqual('a/c', broker.root_path) def check_object_counted(broker_to_test, broker_with_object): obj = {'name': 'o', 'created_at': next(self.ts).internal, 'size': 0, 'content_type': 'text/plain', 'etag': EMPTY_ETAG, 'deleted': 0} broker_with_object.merge_items([dict(obj)]) self.assertFalse(broker_to_test.empty()) # and delete it obj.update({'created_at': next(self.ts).internal, 'deleted': 1}) broker_with_object.merge_items([dict(obj)]) self.assertTrue(broker_to_test.empty()) self.assertTrue(broker.empty()) self.assertFalse(broker.is_root_container()) check_object_counted(broker, broker) # own shard range is not considered for object count own_sr = broker.get_own_shard_range() self.assertEqual(0, own_sr.object_count) broker.merge_shard_ranges([own_sr]) self.assertTrue(broker.empty()) broker.put_object('o', next(self.ts).internal, 0, 'text/plain', EMPTY_ETAG) own_sr = broker.get_own_shard_range() self.assertEqual(0, own_sr.object_count) broker.merge_shard_ranges([own_sr]) self.assertFalse(broker.empty()) broker.delete_object('o', next(self.ts).internal) self.assertTrue(broker.empty()) def check_shard_ranges_not_counted(): sr = ShardRange('.shards_a/shard_c', next(self.ts), object_count=0) sr.update_meta(13, 99, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.empty()) # empty other shard ranges do not influence result sr.update_meta(0, 0, meta_timestamp=next(self.ts)) for state in ShardRange.STATES: sr.update_state(state, state_timestamp=next(self.ts)) broker.merge_shard_ranges([sr]) self.assertTrue(broker.empty()) check_shard_ranges_not_counted() # move to sharding state broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) # check object in retiring db is considered check_object_counted(broker, broker.get_brokers()[0]) self.assertTrue(broker.empty()) # as well as misplaced objects in fresh db check_object_counted(broker, broker) check_shard_ranges_not_counted() # move to sharded state self.assertTrue(broker.set_sharded_state()) self.assertTrue(broker.empty()) check_object_counted(broker, broker) check_shard_ranges_not_counted() # own shard range still has no influence own_sr = broker.get_own_shard_range() own_sr.update_meta(3, 4, meta_timestamp=next(self.ts)) broker.merge_shard_ranges([own_sr]) self.assertTrue(broker.empty()) self.assertFalse(broker.is_deleted()) self.assertFalse(broker.is_root_container()) # sharder won't call delete_db() unless own_shard_range is deleted own_sr.deleted = True own_sr.timestamp = next(self.ts) broker.merge_shard_ranges([own_sr]) broker.delete_db(next(self.ts).internal) self.assertFalse(broker.is_root_container()) self.assertEqual('a/c', broker.root_path) # Get a fresh broker, with instance cache unset broker = ContainerBroker(db_path, account='.shards_a', container='cc') self.assertTrue(broker.empty()) self.assertTrue(broker.is_deleted()) self.assertFalse(broker.is_root_container()) self.assertEqual('a/c', broker.root_path) # older versions *did* delete sharding sysmeta when db was deleted... # but still know they are not root containers broker.set_sharding_sysmeta('Quoted-Root', '') self.assertFalse(broker.is_root_container()) self.assertEqual('a/c', broker.root_path) # however, they have bogus root path once instance cache is cleared... broker = ContainerBroker(db_path, account='.shards_a', container='cc') self.assertFalse(broker.is_root_container()) self.assertEqual('.shards_a/cc', broker.root_path) def test_reclaim(self): broker = ContainerBroker(':memory:', account='test_account', container='test_container') broker.initialize(Timestamp('1').internal, 0) broker.put_object('o', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 0").fetchone()[0], 1) self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1").fetchone()[0], 0) broker.reclaim(Timestamp(time() - 999).internal, time()) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 0").fetchone()[0], 1) self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1").fetchone()[0], 0) sleep(.00001) broker.delete_object('o', Timestamp.now().internal) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 0").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1").fetchone()[0], 1) broker.reclaim(Timestamp(time() - 999).internal, time()) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 0").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1").fetchone()[0], 1) sleep(.00001) broker.reclaim(Timestamp.now().internal, time()) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 0").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1").fetchone()[0], 0) # Test the return values of reclaim() broker.put_object('w', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('x', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('y', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('z', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') # Test before deletion broker.reclaim(Timestamp.now().internal, time()) broker.delete_db(Timestamp.now().internal) def test_batch_reclaim(self): num_of_objects = 60 obj_specs = [] now = time() top_of_the_minute = now - (now % 60) c = itertools.cycle([True, False]) for m, is_deleted in six.moves.zip(range(num_of_objects), c): offset = top_of_the_minute - (m * 60) obj_specs.append((Timestamp(offset), is_deleted)) random.seed(now) random.shuffle(obj_specs) policy_indexes = list(p.idx for p in POLICIES) broker = ContainerBroker(':memory:', account='test_account', container='test_container') broker.initialize(Timestamp('1').internal, 0) for i, obj_spec in enumerate(obj_specs): # with object12 before object2 and shuffled ts.internal we # shouldn't be able to accidently rely on any implicit ordering obj_name = 'object%s' % i pidx = random.choice(policy_indexes) ts, is_deleted = obj_spec if is_deleted: broker.delete_object(obj_name, ts.internal, pidx) else: broker.put_object(obj_name, ts.internal, 0, 'text/plain', 'etag', storage_policy_index=pidx) def count_reclaimable(conn, reclaim_age): return conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1 AND created_at < ?", (reclaim_age,) ).fetchone()[0] # This is intended to divide the set of timestamps exactly in half # regardless of the value of now reclaim_age = top_of_the_minute + 1 - (num_of_objects / 2 * 60) with broker.get() as conn: self.assertEqual(count_reclaimable(conn, reclaim_age), num_of_objects / 4) trace = [] class TracingReclaimer(TombstoneReclaimer): def _reclaim(self, conn): trace.append( (self.age_timestamp, self.marker, count_reclaimable(conn, self.age_timestamp))) return super(TracingReclaimer, self)._reclaim(conn) with mock.patch( 'swift.common.db.TombstoneReclaimer', TracingReclaimer), \ mock.patch('swift.common.db.RECLAIM_PAGE_SIZE', 10): broker.reclaim(reclaim_age, reclaim_age) with broker.get() as conn: self.assertEqual(count_reclaimable(conn, reclaim_age), 0) self.assertEqual(3, len(trace), trace) self.assertEqual([age for age, marker, reclaimable in trace], [reclaim_age] * 3) # markers are in-order self.assertLess(trace[0][1], trace[1][1]) self.assertLess(trace[1][1], trace[2][1]) # reclaimable count gradually decreases # generally, count1 > count2 > count3, but because of the randomness # we may occassionally have count1 == count2 or count2 == count3 self.assertGreaterEqual(trace[0][2], trace[1][2]) self.assertGreaterEqual(trace[1][2], trace[2][2]) # technically, this might happen occasionally, but *really* rarely self.assertTrue(trace[0][2] > trace[1][2] or trace[1][2] > trace[2][2]) def test_reclaim_with_duplicate_names(self): broker = ContainerBroker(':memory:', account='test_account', container='test_container') broker.initialize(Timestamp('1').internal, 0) now = time() ages_ago = Timestamp(now - (3 * 7 * 24 * 60 * 60)) for i in range(10): for spidx in range(10): obj_name = 'object%s' % i broker.delete_object(obj_name, ages_ago.internal, spidx) reclaim_age = now - (2 * 7 * 24 * 60 * 60) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE created_at < ?", (reclaim_age,) ).fetchone()[0], 100) with mock.patch('swift.common.db.RECLAIM_PAGE_SIZE', 10): broker.reclaim(reclaim_age, reclaim_age) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " ).fetchone()[0], 0) @with_tempdir def test_reclaim_deadlock(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', '%s.db' % uuid4()) broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(Timestamp(100).internal, 0) # there's some magic count here that causes the failure, something # about the size of object records and sqlite page size maybe? count = 23000 for i in range(count): obj_name = 'o%d' % i ts = Timestamp(200).internal broker.delete_object(obj_name, ts) broker._commit_puts() with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object").fetchone()[0], count) # make a broker whose container attribute is not yet set so that # reclaim will need to query info to set it broker = ContainerBroker(db_path, timeout=1) # verify that reclaim doesn't get deadlocked and timeout broker.reclaim(300, 300) # check all objects were reclaimed with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object" ).fetchone()[0], 0) @with_tempdir def test_reclaim_shard_ranges(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', '%s.db' % uuid4()) broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) older = next(self.ts) same = next(self.ts) newer = next(self.ts) shard_ranges = [ ShardRange('.shards_a/older_deleted', older.internal, '', 'a', deleted=True), ShardRange('.shards_a/same_deleted', same.internal, 'a', 'b', deleted=True), ShardRange('.shards_a/newer_deleted', newer.internal, 'b', 'c', deleted=True), ShardRange('.shards_a/older', older.internal, 'c', 'd'), ShardRange('.shards_a/same', same.internal, 'd', 'e'), ShardRange('.shards_a/newer', newer.internal, 'e', 'f'), # own shard range is never reclaimed, even if deleted ShardRange('a/c', older.internal, '', '', deleted=True)] broker.merge_shard_ranges( random.sample(shard_ranges, len(shard_ranges))) def assert_row_count(expected): with broker.get() as conn: res = conn.execute("SELECT count(*) FROM shard_range") self.assertEqual(expected, res.fetchone()[0]) broker.reclaim(older.internal, older.internal) assert_row_count(7) self._assert_shard_ranges(broker, shard_ranges, include_own=True) broker.reclaim(older.internal, same.internal) assert_row_count(6) self._assert_shard_ranges(broker, shard_ranges[1:], include_own=True) broker.reclaim(older.internal, newer.internal) assert_row_count(5) self._assert_shard_ranges(broker, shard_ranges[2:], include_own=True) broker.reclaim(older.internal, next(self.ts).internal) assert_row_count(4) self._assert_shard_ranges(broker, shard_ranges[3:], include_own=True) def test_get_info_is_deleted(self): ts = make_timestamp_iter() start = next(ts) broker = ContainerBroker(':memory:', account='test_account', container='test_container') # create it broker.initialize(start.internal, POLICIES.default.idx) info, is_deleted = broker.get_info_is_deleted() self.assertEqual(is_deleted, broker.is_deleted()) self.assertEqual(is_deleted, False) # sanity self.assertEqual(info, broker.get_info()) self.assertEqual(info['put_timestamp'], start.internal) self.assertTrue(Timestamp(info['created_at']) >= start) self.assertEqual(info['delete_timestamp'], '0') if self.__class__ in ( TestContainerBrokerBeforeMetadata, TestContainerBrokerBeforeXSync, TestContainerBrokerBeforeSPI, TestContainerBrokerBeforeShardRanges, TestContainerBrokerBeforeShardRangeReportedColumn, TestContainerBrokerBeforeShardRangeTombstonesColumn): self.assertEqual(info['status_changed_at'], '0') else: self.assertEqual(info['status_changed_at'], start.internal) # delete it delete_timestamp = next(ts) broker.delete_db(delete_timestamp.internal) info, is_deleted = broker.get_info_is_deleted() self.assertEqual(is_deleted, True) # sanity self.assertEqual(is_deleted, broker.is_deleted()) self.assertEqual(info, broker.get_info()) self.assertEqual(info['put_timestamp'], start.internal) self.assertTrue(Timestamp(info['created_at']) >= start) self.assertEqual(info['delete_timestamp'], delete_timestamp) self.assertEqual(info['status_changed_at'], delete_timestamp) # bring back to life broker.put_object('obj', next(ts).internal, 0, 'text/plain', 'etag', storage_policy_index=broker.storage_policy_index) info, is_deleted = broker.get_info_is_deleted() self.assertEqual(is_deleted, False) # sanity self.assertEqual(is_deleted, broker.is_deleted()) self.assertEqual(info, broker.get_info()) self.assertEqual(info['put_timestamp'], start.internal) self.assertTrue(Timestamp(info['created_at']) >= start) self.assertEqual(info['delete_timestamp'], delete_timestamp) self.assertEqual(info['status_changed_at'], delete_timestamp) def test_delete_object(self): # Test ContainerBroker.delete_object broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) broker.put_object('o', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 0").fetchone()[0], 1) self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1").fetchone()[0], 0) sleep(.00001) broker.delete_object('o', Timestamp.now().internal) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 0").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT count(*) FROM object " "WHERE deleted = 1").fetchone()[0], 1) def test_put_object(self): # Test ContainerBroker.put_object broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) # Create initial object timestamp = Timestamp.now().internal broker.put_object('"{}"', timestamp, 123, 'application/x-test', '5af83e3196bf99f440f31f2e1a6c9afe') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 123) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], '5af83e3196bf99f440f31f2e1a6c9afe') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) # Reput same event broker.put_object('"{}"', timestamp, 123, 'application/x-test', '5af83e3196bf99f440f31f2e1a6c9afe') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 123) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], '5af83e3196bf99f440f31f2e1a6c9afe') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) # Put new event sleep(.00001) timestamp = Timestamp.now().internal broker.put_object('"{}"', timestamp, 124, 'application/x-test', 'aa0749bacbc79ec65fe206943d8fe449') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 124) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], 'aa0749bacbc79ec65fe206943d8fe449') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) # Put old event otimestamp = Timestamp(float(Timestamp(timestamp)) - 1).internal broker.put_object('"{}"', otimestamp, 124, 'application/x-test', 'aa0749bacbc79ec65fe206943d8fe449') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 124) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], 'aa0749bacbc79ec65fe206943d8fe449') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) # Put old delete event dtimestamp = Timestamp(float(Timestamp(timestamp)) - 1).internal broker.put_object('"{}"', dtimestamp, 0, '', '', deleted=1) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 124) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], 'aa0749bacbc79ec65fe206943d8fe449') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) # Put new delete event sleep(.00001) timestamp = Timestamp.now().internal broker.put_object('"{}"', timestamp, 0, '', '', deleted=1) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 1) # Put new event sleep(.00001) timestamp = Timestamp.now().internal broker.put_object('"{}"', timestamp, 123, 'application/x-test', '5af83e3196bf99f440f31f2e1a6c9afe') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 123) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], '5af83e3196bf99f440f31f2e1a6c9afe') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) # We'll use this later sleep(.0001) in_between_timestamp = Timestamp.now().internal # New post event sleep(.0001) previous_timestamp = timestamp timestamp = Timestamp.now().internal with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], previous_timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 123) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], '5af83e3196bf99f440f31f2e1a6c9afe') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) # Put event from after last put but before last post timestamp = in_between_timestamp broker.put_object('"{}"', timestamp, 456, 'application/x-test3', '6af83e3196bf99f440f31f2e1a6c9afe') with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], '"{}"') self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], 456) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], 'application/x-test3') self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], '6af83e3196bf99f440f31f2e1a6c9afe') self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], 0) def test_merge_shard_range_single_record(self): # Test ContainerBroker.merge_shard_range broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) # Stash these for later old_put_timestamp = next(self.ts).internal old_delete_timestamp = next(self.ts).internal # Create initial object timestamp = next(self.ts).internal meta_timestamp = next(self.ts).internal broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'low', 'up', meta_timestamp=meta_timestamp)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'low') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'up') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT reported FROM shard_range").fetchone()[0], 0) # Reput same event broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'low', 'up', meta_timestamp=meta_timestamp)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'low') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'up') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT reported FROM shard_range").fetchone()[0], 0) # Mark it as reported broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'low', 'up', meta_timestamp=meta_timestamp, reported=True)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'low') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'up') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT reported FROM shard_range").fetchone()[0], 1) # Reporting latches it broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'low', 'up', meta_timestamp=meta_timestamp, reported=False)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'low') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'up') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT reported FROM shard_range").fetchone()[0], 1) # Put new event timestamp = next(self.ts).internal meta_timestamp = next(self.ts).internal broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'lower', 'upper', 1, 2, meta_timestamp=meta_timestamp)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'lower') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'upper') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 1) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 2) self.assertEqual(conn.execute( "SELECT reported FROM shard_range").fetchone()[0], 0) # Put old event broker.merge_shard_ranges( ShardRange('"a/{}"', old_put_timestamp, 'lower', 'upper', 1, 2, meta_timestamp=meta_timestamp, reported=True)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) # Not old_put_timestamp! self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'lower') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'upper') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 1) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 2) self.assertEqual(conn.execute( "SELECT reported FROM shard_range").fetchone()[0], 0) # Put old delete event broker.merge_shard_ranges( ShardRange('"a/{}"', old_delete_timestamp, 'lower', 'upper', meta_timestamp=meta_timestamp, deleted=1)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) # Not old_delete_timestamp! self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'lower') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'upper') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 1) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 2) # Put new delete event timestamp = next(self.ts).internal broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'lower', 'upper', meta_timestamp=meta_timestamp, deleted=1)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 1) # Put new event timestamp = next(self.ts).internal meta_timestamp = next(self.ts).internal broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'lowerer', 'upperer', 3, 4, meta_timestamp=meta_timestamp)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'lowerer') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'upperer') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 3) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 4) # We'll use this later in_between_timestamp = next(self.ts).internal # New update event, meta_timestamp increases meta_timestamp = next(self.ts).internal broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'lowerer', 'upperer', 3, 4, meta_timestamp=meta_timestamp)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'lowerer') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'upperer') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 3) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 4) # Put event from after last put but before last post timestamp = in_between_timestamp broker.merge_shard_ranges( ShardRange('"a/{}"', timestamp, 'lowererer', 'uppererer', 5, 6, meta_timestamp=meta_timestamp)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM shard_range").fetchone()[0], '"a/{}"') self.assertEqual(conn.execute( "SELECT timestamp FROM shard_range").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT meta_timestamp FROM shard_range").fetchone()[0], meta_timestamp) self.assertEqual(conn.execute( "SELECT lower FROM shard_range").fetchone()[0], 'lowererer') self.assertEqual(conn.execute( "SELECT upper FROM shard_range").fetchone()[0], 'uppererer') self.assertEqual(conn.execute( "SELECT deleted FROM shard_range").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT object_count FROM shard_range").fetchone()[0], 5) self.assertEqual(conn.execute( "SELECT bytes_used FROM shard_range").fetchone()[0], 6) def test_merge_shard_ranges_deleted(self): # Test ContainerBroker.merge_shard_ranges sets deleted attribute broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) # put shard range broker.merge_shard_ranges(ShardRange('a/o', next(self.ts).internal)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM shard_range " "WHERE deleted = 0").fetchone()[0], 1) self.assertEqual(conn.execute( "SELECT count(*) FROM shard_range " "WHERE deleted = 1").fetchone()[0], 0) # delete shard range broker.merge_shard_ranges(ShardRange('a/o', next(self.ts).internal, deleted=1)) with broker.get() as conn: self.assertEqual(conn.execute( "SELECT count(*) FROM shard_range " "WHERE deleted = 0").fetchone()[0], 0) self.assertEqual(conn.execute( "SELECT count(*) FROM shard_range " "WHERE deleted = 1").fetchone()[0], 1) def test_make_tuple_for_pickle(self): record = {'name': 'obj', 'created_at': '1234567890.12345', 'size': 42, 'content_type': 'text/plain', 'etag': 'hash_test', 'deleted': '1', 'storage_policy_index': '2', 'ctype_timestamp': None, 'meta_timestamp': None} broker = ContainerBroker(':memory:', account='a', container='c') expect = ('obj', '1234567890.12345', 42, 'text/plain', 'hash_test', '1', '2', None, None) result = broker.make_tuple_for_pickle(record) self.assertEqual(expect, result) record['ctype_timestamp'] = '2233445566.00000' expect = ('obj', '1234567890.12345', 42, 'text/plain', 'hash_test', '1', '2', '2233445566.00000', None) result = broker.make_tuple_for_pickle(record) self.assertEqual(expect, result) record['meta_timestamp'] = '5566778899.00000' expect = ('obj', '1234567890.12345', 42, 'text/plain', 'hash_test', '1', '2', '2233445566.00000', '5566778899.00000') result = broker.make_tuple_for_pickle(record) self.assertEqual(expect, result) @with_tempdir def test_load_old_record_from_pending_file(self, tempdir): # Test reading old update record from pending file db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(time(), 0) record = {'name': 'obj', 'created_at': '1234567890.12345', 'size': 42, 'content_type': 'text/plain', 'etag': 'hash_test', 'deleted': '1', 'storage_policy_index': '2', 'ctype_timestamp': None, 'meta_timestamp': None} # sanity check self.assertFalse(os.path.isfile(broker.pending_file)) # simulate existing pending items written with old code, # i.e. without content_type and meta timestamps def old_make_tuple_for_pickle(_, record): return (record['name'], record['created_at'], record['size'], record['content_type'], record['etag'], record['deleted'], record['storage_policy_index']) _new = 'swift.container.backend.ContainerBroker.make_tuple_for_pickle' with mock.patch(_new, old_make_tuple_for_pickle): broker.put_record(dict(record)) self.assertTrue(os.path.getsize(broker.pending_file) > 0) read_items = [] def mock_merge_items(_, item_list, *args): # capture the items read from the pending file read_items.extend(item_list) with mock.patch('swift.container.backend.ContainerBroker.merge_items', mock_merge_items): broker._commit_puts() self.assertEqual(1, len(read_items)) self.assertEqual(record, read_items[0]) self.assertTrue(os.path.getsize(broker.pending_file) == 0) @with_tempdir def test_save_and_load_record_from_pending_file(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(time(), 0) record = {'name': 'obj', 'created_at': '1234567890.12345', 'size': 42, 'content_type': 'text/plain', 'etag': 'hash_test', 'deleted': '1', 'storage_policy_index': '2', 'ctype_timestamp': '1234567890.44444', 'meta_timestamp': '1234567890.99999'} # sanity check self.assertFalse(os.path.isfile(broker.pending_file)) broker.put_record(dict(record)) self.assertTrue(os.path.getsize(broker.pending_file) > 0) read_items = [] def mock_merge_items(_, item_list, *args): # capture the items read from the pending file read_items.extend(item_list) with mock.patch('swift.container.backend.ContainerBroker.merge_items', mock_merge_items): broker._commit_puts() self.assertEqual(1, len(read_items)) self.assertEqual(record, read_items[0]) self.assertTrue(os.path.getsize(broker.pending_file) == 0) def _assert_db_row(self, broker, name, timestamp, size, content_type, hash, deleted=0): with broker.get() as conn: self.assertEqual(conn.execute( "SELECT name FROM object").fetchone()[0], name) self.assertEqual(conn.execute( "SELECT created_at FROM object").fetchone()[0], timestamp) self.assertEqual(conn.execute( "SELECT size FROM object").fetchone()[0], size) self.assertEqual(conn.execute( "SELECT content_type FROM object").fetchone()[0], content_type) self.assertEqual(conn.execute( "SELECT etag FROM object").fetchone()[0], hash) self.assertEqual(conn.execute( "SELECT deleted FROM object").fetchone()[0], deleted) def _test_put_object_multiple_encoded_timestamps(self, broker): ts = make_timestamp_iter() broker.initialize(next(ts).internal, 0) t = [next(ts) for _ in range(9)] # Create initial object broker.put_object('obj_name', t[0].internal, 123, 'application/x-test', '5af83e3196bf99f440f31f2e1a6c9afe') self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t[0].internal, 123, 'application/x-test', '5af83e3196bf99f440f31f2e1a6c9afe') # hash and size change with same data timestamp are ignored t_encoded = encode_timestamps(t[0], t[1], t[1]) broker.put_object('obj_name', t_encoded, 456, 'application/x-test-2', '1234567890abcdeffedcba0987654321') self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 123, 'application/x-test-2', '5af83e3196bf99f440f31f2e1a6c9afe') # content-type change with same timestamp is ignored t_encoded = encode_timestamps(t[0], t[1], t[2]) broker.put_object('obj_name', t_encoded, 456, 'application/x-test-3', '1234567890abcdeffedcba0987654321') self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 123, 'application/x-test-2', '5af83e3196bf99f440f31f2e1a6c9afe') # update with differing newer timestamps t_encoded = encode_timestamps(t[4], t[6], t[8]) broker.put_object('obj_name', t_encoded, 789, 'application/x-test-3', 'abcdef1234567890abcdef1234567890') self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 789, 'application/x-test-3', 'abcdef1234567890abcdef1234567890') # update with differing older timestamps should be ignored t_encoded_older = encode_timestamps(t[3], t[5], t[7]) self.assertEqual(1, len(broker.get_items_since(0, 100))) broker.put_object('obj_name', t_encoded_older, 9999, 'application/x-test-ignored', 'ignored_hash') self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 789, 'application/x-test-3', 'abcdef1234567890abcdef1234567890') def test_put_object_multiple_encoded_timestamps_using_memory(self): # Test ContainerBroker.put_object with differing data, content-type # and metadata timestamps broker = ContainerBroker(':memory:', account='a', container='c') self._test_put_object_multiple_encoded_timestamps(broker) @with_tempdir def test_get_db_state(self, tempdir): acct = 'account' cont = 'container' hsh = hash_path(acct, cont) db_file = "%s.db" % hsh epoch = Timestamp.now() fresh_db_file = "%s_%s.db" % (hsh, epoch.normal) db_path = os.path.join(tempdir, db_file) fresh_db_path = os.path.join(tempdir, fresh_db_file) ts = Timestamp.now() # First test NOTFOUND state broker = ContainerBroker(db_path, account=acct, container=cont) self.assertEqual(broker.get_db_state(), 'not_found') # Test UNSHARDED state, that is when db_file exists and fresh_db_file # doesn't broker.initialize(ts.internal, 0) self.assertEqual(broker.get_db_state(), 'unsharded') # Test the SHARDING state, this is the period when both the db_file and # the fresh_db_file exist fresh_broker = ContainerBroker(fresh_db_path, account=acct, container=cont, force_db_file=True) fresh_broker.initialize(ts.internal, 0) own_shard_range = fresh_broker.get_own_shard_range() own_shard_range.update_state(ShardRange.SHARDING) own_shard_range.epoch = epoch shard_range = ShardRange( '.shards_%s/%s' % (acct, cont), Timestamp.now()) fresh_broker.merge_shard_ranges([own_shard_range, shard_range]) self.assertEqual(fresh_broker.get_db_state(), 'sharding') # old broker will also change state if we reload its db files broker.reload_db_files() self.assertEqual(broker.get_db_state(), 'sharding') # Test the SHARDED state, this is when only fresh_db_file exists. os.unlink(db_path) fresh_broker.reload_db_files() self.assertEqual(fresh_broker.get_db_state(), 'sharded') # Test the COLLAPSED state, this is when only fresh_db_file exists. shard_range.deleted = 1 shard_range.timestamp = Timestamp.now() fresh_broker.merge_shard_ranges([shard_range]) self.assertEqual(fresh_broker.get_db_state(), 'collapsed') # back to UNSHARDED if the desired epoch changes own_shard_range.update_state(ShardRange.SHRINKING, state_timestamp=Timestamp.now()) own_shard_range.epoch = Timestamp.now() fresh_broker.merge_shard_ranges([own_shard_range]) self.assertEqual(fresh_broker.get_db_state(), 'unsharded') @with_tempdir def test_delete_db_does_not_clear_root_path(self, tempdir): acct = '.sharded_a' cont = 'c' hsh = hash_path(acct, cont) db_file = "%s.db" % hsh db_path = os.path.join(tempdir, db_file) ts = Timestamp(0).normal broker = ContainerBroker(db_path, account=acct, container=cont) broker.initialize(ts, 0) # add some metadata but include both types of root path broker.update_metadata({ 'foo': ('bar', ts), 'icecream': ('sandwich', ts), 'X-Container-Sysmeta-Some': ('meta', ts), 'X-Container-Sysmeta-Shard-Quoted-Root': ('a/c', ts), 'X-Container-Sysmeta-Shard-Root': ('a/c', ts)}) self.assertEqual('a/c', broker.root_path) # now let's delete the db. All meta delete_ts = Timestamp(1).normal broker.delete_db(delete_ts) # ensure that metadata was cleared except for root paths def check_metadata(broker): meta = broker.metadata self.assertEqual(meta['X-Container-Sysmeta-Some'], ['', delete_ts]) self.assertEqual(meta['icecream'], ['', delete_ts]) self.assertEqual(meta['foo'], ['', delete_ts]) self.assertEqual(meta['X-Container-Sysmeta-Shard-Quoted-Root'], ['a/c', ts]) self.assertEqual(meta['X-Container-Sysmeta-Shard-Root'], ['a/c', ts]) self.assertEqual('a/c', broker.root_path) self.assertFalse(broker.is_root_container()) check_metadata(broker) # fresh broker in case values were cached in previous instance broker = ContainerBroker(db_path) check_metadata(broker) @with_tempdir def test_db_file(self, tempdir): acct = 'account' cont = 'continer' hsh = hash_path(acct, cont) db_file = "%s.db" % hsh ts_epoch = Timestamp.now() fresh_db_file = "%s_%s.db" % (hsh, ts_epoch.normal) db_path = os.path.join(tempdir, db_file) fresh_db_path = os.path.join(tempdir, fresh_db_file) ts = Timestamp.now() # First test NOTFOUND state, this will return the db_file passed # in the constructor def check_unfound_db_files(broker, init_db_file): self.assertEqual(init_db_file, broker.db_file) self.assertEqual(broker._db_file, db_path) self.assertFalse(os.path.exists(db_path)) self.assertFalse(os.path.exists(fresh_db_path)) self.assertEqual([], broker.db_files) broker = ContainerBroker(db_path, account=acct, container=cont) check_unfound_db_files(broker, db_path) broker = ContainerBroker(fresh_db_path, account=acct, container=cont) check_unfound_db_files(broker, fresh_db_path) # Test UNSHARDED state, that is when db_file exists and fresh_db_file # doesn't, so it should return the db_path def check_unsharded_db_files(broker): self.assertEqual(broker.db_file, db_path) self.assertEqual(broker._db_file, db_path) self.assertTrue(os.path.exists(db_path)) self.assertFalse(os.path.exists(fresh_db_path)) self.assertEqual([db_path], broker.db_files) broker = ContainerBroker(db_path, account=acct, container=cont) broker.initialize(ts.internal, 0) check_unsharded_db_files(broker) broker = ContainerBroker(fresh_db_path, account=acct, container=cont) check_unsharded_db_files(broker) # while UNSHARDED db_path is still used despite giving fresh_db_path # to init, so we cannot initialize this broker with self.assertRaises(DatabaseAlreadyExists): broker.initialize(ts.internal, 0) # Test the SHARDING state, this is the period when both the db_file and # the fresh_db_file exist, in this case it should return the # fresh_db_path. def check_sharding_db_files(broker): self.assertEqual(broker.db_file, fresh_db_path) self.assertEqual(broker._db_file, db_path) self.assertTrue(os.path.exists(db_path)) self.assertTrue(os.path.exists(fresh_db_path)) self.assertEqual([db_path, fresh_db_path], broker.db_files) # Use force_db_file to have db_shard_path created when initializing broker = ContainerBroker(fresh_db_path, account=acct, container=cont, force_db_file=True) self.assertEqual([db_path], broker.db_files) broker.initialize(ts.internal, 0) check_sharding_db_files(broker) broker = ContainerBroker(db_path, account=acct, container=cont) check_sharding_db_files(broker) broker = ContainerBroker(fresh_db_path, account=acct, container=cont) check_sharding_db_files(broker) # force_db_file can be used to open db_path specifically forced_broker = ContainerBroker(db_path, account=acct, container=cont, force_db_file=True) self.assertEqual(forced_broker.db_file, db_path) self.assertEqual(forced_broker._db_file, db_path) def check_sharded_db_files(broker): self.assertEqual(broker.db_file, fresh_db_path) self.assertEqual(broker._db_file, db_path) self.assertFalse(os.path.exists(db_path)) self.assertTrue(os.path.exists(fresh_db_path)) self.assertEqual([fresh_db_path], broker.db_files) # Test the SHARDED state, this is when only fresh_db_file exists, so # obviously this should return the fresh_db_path os.unlink(db_path) broker.reload_db_files() check_sharded_db_files(broker) broker = ContainerBroker(db_path, account=acct, container=cont) check_sharded_db_files(broker) @with_tempdir def test_sharding_initiated_and_required(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', '%s.db' % uuid4()) broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(Timestamp.now().internal, 0) # no shard ranges self.assertIs(False, broker.sharding_initiated()) self.assertIs(False, broker.sharding_required()) # only own shard range own_sr = broker.get_own_shard_range() for state in ShardRange.STATES: own_sr.update_state(state, state_timestamp=Timestamp.now()) broker.merge_shard_ranges(own_sr) self.assertIs(False, broker.sharding_initiated()) self.assertIs(False, broker.sharding_required()) # shard ranges, still ACTIVE own_sr.update_state(ShardRange.ACTIVE, state_timestamp=Timestamp.now()) broker.merge_shard_ranges(own_sr) broker.merge_shard_ranges(ShardRange('.shards_a/cc', Timestamp.now())) self.assertIs(False, broker.sharding_initiated()) self.assertIs(False, broker.sharding_required()) # shard ranges and SHARDING, SHRINKING or SHARDED broker.enable_sharding(Timestamp.now()) self.assertTrue(broker.set_sharding_state()) self.assertIs(True, broker.sharding_initiated()) self.assertIs(True, broker.sharding_required()) epoch = broker.db_epoch own_sr.update_state(ShardRange.SHRINKING, state_timestamp=Timestamp.now()) own_sr.epoch = epoch broker.merge_shard_ranges(own_sr) self.assertIs(True, broker.sharding_initiated()) self.assertIs(True, broker.sharding_required()) own_sr.update_state(ShardRange.SHARDED) broker.merge_shard_ranges(own_sr) self.assertTrue(broker.set_sharded_state()) self.assertIs(True, broker.sharding_initiated()) self.assertIs(False, broker.sharding_required()) @with_tempdir def test_put_object_multiple_encoded_timestamps_using_file(self, tempdir): # Test ContainerBroker.put_object with differing data, content-type # and metadata timestamps, using file db to ensure that the code paths # to write/read pending file are exercised. db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') self._test_put_object_multiple_encoded_timestamps(broker) def _test_put_object_multiple_explicit_timestamps(self, broker): ts = make_timestamp_iter() broker.initialize(next(ts).internal, 0) t = [next(ts) for _ in range(11)] # Create initial object broker.put_object('obj_name', t[0].internal, 123, 'application/x-test', '5af83e3196bf99f440f31f2e1a6c9afe', ctype_timestamp=None, meta_timestamp=None) self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t[0].internal, 123, 'application/x-test', '5af83e3196bf99f440f31f2e1a6c9afe') # hash and size change with same data timestamp are ignored t_encoded = encode_timestamps(t[0], t[1], t[1]) broker.put_object('obj_name', t[0].internal, 456, 'application/x-test-2', '1234567890abcdeffedcba0987654321', ctype_timestamp=t[1].internal, meta_timestamp=t[1].internal) self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 123, 'application/x-test-2', '5af83e3196bf99f440f31f2e1a6c9afe') # content-type change with same timestamp is ignored t_encoded = encode_timestamps(t[0], t[1], t[2]) broker.put_object('obj_name', t[0].internal, 456, 'application/x-test-3', '1234567890abcdeffedcba0987654321', ctype_timestamp=t[1].internal, meta_timestamp=t[2].internal) self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 123, 'application/x-test-2', '5af83e3196bf99f440f31f2e1a6c9afe') # update with differing newer timestamps t_encoded = encode_timestamps(t[4], t[6], t[8]) broker.put_object('obj_name', t[4].internal, 789, 'application/x-test-3', 'abcdef1234567890abcdef1234567890', ctype_timestamp=t[6].internal, meta_timestamp=t[8].internal) self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 789, 'application/x-test-3', 'abcdef1234567890abcdef1234567890') # update with differing older timestamps should be ignored broker.put_object('obj_name', t[3].internal, 9999, 'application/x-test-ignored', 'ignored_hash', ctype_timestamp=t[5].internal, meta_timestamp=t[7].internal) self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 789, 'application/x-test-3', 'abcdef1234567890abcdef1234567890') # content_type_timestamp == None defaults to data timestamp t_encoded = encode_timestamps(t[9], t[9], t[8]) broker.put_object('obj_name', t[9].internal, 9999, 'application/x-test-new', 'new_hash', ctype_timestamp=None, meta_timestamp=t[7].internal) self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 9999, 'application/x-test-new', 'new_hash') # meta_timestamp == None defaults to data timestamp t_encoded = encode_timestamps(t[9], t[10], t[10]) broker.put_object('obj_name', t[8].internal, 1111, 'application/x-test-newer', 'older_hash', ctype_timestamp=t[10].internal, meta_timestamp=None) self.assertEqual(1, len(broker.get_items_since(0, 100))) self._assert_db_row(broker, 'obj_name', t_encoded, 9999, 'application/x-test-newer', 'new_hash') def test_put_object_multiple_explicit_timestamps_using_memory(self): # Test ContainerBroker.put_object with differing data, content-type # and metadata timestamps passed as explicit args broker = ContainerBroker(':memory:', account='a', container='c') self._test_put_object_multiple_explicit_timestamps(broker) @with_tempdir def test_put_object_multiple_explicit_timestamps_using_file(self, tempdir): # Test ContainerBroker.put_object with differing data, content-type # and metadata timestamps passed as explicit args, using file db to # ensure that the code paths to write/read pending file are exercised. db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') self._test_put_object_multiple_explicit_timestamps(broker) def test_last_modified_time(self): # Test container listing reports the most recent of data or metadata # timestamp as last-modified time ts = make_timestamp_iter() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(next(ts).internal, 0) # simple 'single' timestamp case t0 = next(ts) broker.put_object('obj1', t0.internal, 0, 'text/plain', 'hash1') listing = broker.list_objects_iter(100, '', None, None, '') self.assertEqual(len(listing), 1) self.assertEqual(listing[0][0], 'obj1') self.assertEqual(listing[0][1], t0.internal) # content-type and metadata are updated at t1 t1 = next(ts) t_encoded = encode_timestamps(t0, t1, t1) broker.put_object('obj1', t_encoded, 0, 'text/plain', 'hash1') listing = broker.list_objects_iter(100, '', None, None, '') self.assertEqual(len(listing), 1) self.assertEqual(listing[0][0], 'obj1') self.assertEqual(listing[0][1], t1.internal) # used later t2 = next(ts) # metadata is updated at t3 t3 = next(ts) t_encoded = encode_timestamps(t0, t1, t3) broker.put_object('obj1', t_encoded, 0, 'text/plain', 'hash1') listing = broker.list_objects_iter(100, '', None, None, '') self.assertEqual(len(listing), 1) self.assertEqual(listing[0][0], 'obj1') self.assertEqual(listing[0][1], t3.internal) # all parts updated at t2, last-modified should remain at t3 t_encoded = encode_timestamps(t2, t2, t2) broker.put_object('obj1', t_encoded, 0, 'text/plain', 'hash1') listing = broker.list_objects_iter(100, '', None, None, '') self.assertEqual(len(listing), 1) self.assertEqual(listing[0][0], 'obj1') self.assertEqual(listing[0][1], t3.internal) # all parts updated at t4, last-modified should be t4 t4 = next(ts) t_encoded = encode_timestamps(t4, t4, t4) broker.put_object('obj1', t_encoded, 0, 'text/plain', 'hash1') listing = broker.list_objects_iter(100, '', None, None, '') self.assertEqual(len(listing), 1) self.assertEqual(listing[0][0], 'obj1') self.assertEqual(listing[0][1], t4.internal) @patch_policies def test_put_misplaced_object_does_not_effect_container_stats(self): policy = random.choice(list(POLICIES)) ts = make_timestamp_iter() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(next(ts).internal, policy.idx) # migration tests may not honor policy on initialize if isinstance(self, ContainerBrokerMigrationMixin): real_storage_policy_index = \ broker.get_info()['storage_policy_index'] policy = [p for p in POLICIES if p.idx == real_storage_policy_index][0] broker.put_object('correct_o', next(ts).internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe', storage_policy_index=policy.idx) info = broker.get_info() self.assertEqual(1, info['object_count']) self.assertEqual(123, info['bytes_used']) other_policy = random.choice([p for p in POLICIES if p is not policy]) broker.put_object('wrong_o', next(ts).internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe', storage_policy_index=other_policy.idx) self.assertEqual(1, info['object_count']) self.assertEqual(123, info['bytes_used']) @patch_policies def test_has_multiple_policies(self): policy = random.choice(list(POLICIES)) ts = make_timestamp_iter() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(next(ts).internal, policy.idx) # migration tests may not honor policy on initialize if isinstance(self, ContainerBrokerMigrationMixin): real_storage_policy_index = \ broker.get_info()['storage_policy_index'] policy = [p for p in POLICIES if p.idx == real_storage_policy_index][0] broker.put_object('correct_o', next(ts).internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe', storage_policy_index=policy.idx) self.assertFalse(broker.has_multiple_policies()) other_policy = [p for p in POLICIES if p is not policy][0] broker.put_object('wrong_o', next(ts).internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe', storage_policy_index=other_policy.idx) self.assertTrue(broker.has_multiple_policies()) @patch_policies def test_get_policy_info(self): policy = random.choice(list(POLICIES)) ts = make_timestamp_iter() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(next(ts).internal, policy.idx) # migration tests may not honor policy on initialize if isinstance(self, ContainerBrokerMigrationMixin): real_storage_policy_index = \ broker.get_info()['storage_policy_index'] policy = [p for p in POLICIES if p.idx == real_storage_policy_index][0] policy_stats = broker.get_policy_stats() expected = {policy.idx: {'bytes_used': 0, 'object_count': 0}} self.assertEqual(policy_stats, expected) # add an object broker.put_object('correct_o', next(ts).internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe', storage_policy_index=policy.idx) policy_stats = broker.get_policy_stats() expected = {policy.idx: {'bytes_used': 123, 'object_count': 1}} self.assertEqual(policy_stats, expected) # add a misplaced object other_policy = random.choice([p for p in POLICIES if p is not policy]) broker.put_object('wrong_o', next(ts).internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe', storage_policy_index=other_policy.idx) policy_stats = broker.get_policy_stats() expected = { policy.idx: {'bytes_used': 123, 'object_count': 1}, other_policy.idx: {'bytes_used': 123, 'object_count': 1}, } self.assertEqual(policy_stats, expected) @patch_policies def test_policy_stat_tracking(self): ts = make_timestamp_iter() broker = ContainerBroker(':memory:', account='a', container='c') # Note: in subclasses of this TestCase that inherit the # ContainerBrokerMigrationMixin, passing POLICIES.default.idx here has # no effect and broker.get_policy_stats() returns a dict with a single # entry mapping policy index 0 to the container stats broker.initialize(next(ts).internal, POLICIES.default.idx) stats = defaultdict(dict) def assert_empty_default_policy_stats(policy_stats): # if no objects were added for the default policy we still # expect an entry for the default policy in the returned info # because the database was initialized with that storage policy # - but it must be empty. default_stats = policy_stats[POLICIES.default.idx] expected = {'object_count': 0, 'bytes_used': 0} self.assertEqual(default_stats, expected) policy_stats = broker.get_policy_stats() assert_empty_default_policy_stats(policy_stats) iters = 100 for i in range(iters): policy_index = random.randint(0, iters // 10) name = 'object-%s' % random.randint(0, iters // 10) size = random.randint(0, iters) broker.put_object(name, next(ts).internal, size, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe', storage_policy_index=policy_index) # track the size of the latest timestamp put for each object # in each storage policy stats[policy_index][name] = size policy_stats = broker.get_policy_stats() if POLICIES.default.idx not in stats: # unlikely, but check empty default index still in policy stats assert_empty_default_policy_stats(policy_stats) policy_stats.pop(POLICIES.default.idx) self.assertEqual(len(policy_stats), len(stats)) for policy_index, stat in policy_stats.items(): self.assertEqual(stat['object_count'], len(stats[policy_index])) self.assertEqual(stat['bytes_used'], sum(stats[policy_index].values())) def test_initialize_container_broker_in_default(self): broker = ContainerBroker(':memory:', account='test1', container='test2') # initialize with no storage_policy_index argument broker.initialize(Timestamp(1).internal) info = broker.get_info() self.assertEqual(info['account'], 'test1') self.assertEqual(info['container'], 'test2') self.assertEqual(info['hash'], '00000000000000000000000000000000') self.assertEqual(info['put_timestamp'], Timestamp(1).internal) self.assertEqual(info['delete_timestamp'], '0') info = broker.get_info() self.assertEqual(info['object_count'], 0) self.assertEqual(info['bytes_used'], 0) policy_stats = broker.get_policy_stats() # Act as policy-0 self.assertTrue(0 in policy_stats) self.assertEqual(policy_stats[0]['bytes_used'], 0) self.assertEqual(policy_stats[0]['object_count'], 0) broker.put_object('o1', Timestamp.now().internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe') info = broker.get_info() self.assertEqual(info['object_count'], 1) self.assertEqual(info['bytes_used'], 123) policy_stats = broker.get_policy_stats() self.assertTrue(0 in policy_stats) self.assertEqual(policy_stats[0]['object_count'], 1) self.assertEqual(policy_stats[0]['bytes_used'], 123) def test_get_info(self): # Test ContainerBroker.get_info broker = ContainerBroker(':memory:', account='test1', container='test2') broker.initialize(Timestamp('1').internal, 0) info = broker.get_info() self.assertEqual(info['account'], 'test1') self.assertEqual(info['container'], 'test2') self.assertEqual(info['hash'], '00000000000000000000000000000000') self.assertEqual(info['put_timestamp'], Timestamp(1).internal) self.assertEqual(info['delete_timestamp'], '0') if self.__class__ in ( TestContainerBrokerBeforeMetadata, TestContainerBrokerBeforeXSync, TestContainerBrokerBeforeSPI, TestContainerBrokerBeforeShardRanges, TestContainerBrokerBeforeShardRangeReportedColumn, TestContainerBrokerBeforeShardRangeTombstonesColumn): self.assertEqual(info['status_changed_at'], '0') else: self.assertEqual(info['status_changed_at'], Timestamp(1).internal) info = broker.get_info() self.assertEqual(info['object_count'], 0) self.assertEqual(info['bytes_used'], 0) broker.put_object('o1', Timestamp.now().internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe') info = broker.get_info() self.assertEqual(info['object_count'], 1) self.assertEqual(info['bytes_used'], 123) sleep(.00001) broker.put_object('o2', Timestamp.now().internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe') info = broker.get_info() self.assertEqual(info['object_count'], 2) self.assertEqual(info['bytes_used'], 246) sleep(.00001) broker.put_object('o2', Timestamp.now().internal, 1000, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe') info = broker.get_info() self.assertEqual(info['object_count'], 2) self.assertEqual(info['bytes_used'], 1123) sleep(.00001) broker.delete_object('o1', Timestamp.now().internal) info = broker.get_info() self.assertEqual(info['object_count'], 1) self.assertEqual(info['bytes_used'], 1000) sleep(.00001) broker.delete_object('o2', Timestamp.now().internal) info = broker.get_info() self.assertEqual(info['object_count'], 0) self.assertEqual(info['bytes_used'], 0) info = broker.get_info() self.assertEqual(info['x_container_sync_point1'], -1) self.assertEqual(info['x_container_sync_point2'], -1) @with_tempdir def test_get_info_sharding_states(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'hash.db') broker = ContainerBroker( db_path, account='myaccount', container='mycontainer') broker.initialize(next(self.ts).internal, 0) broker.put_object('o1', next(self.ts).internal, 123, 'text/plain', 'fake etag') sr = ShardRange('.shards_a/c', next(self.ts)) broker.merge_shard_ranges(sr) def check_info(expected): errors = [] for k, v in expected.items(): if info.get(k) != v: errors.append((k, v, info.get(k))) if errors: self.fail('Mismatches: %s' % ', '.join( ['%s should be %s but got %s' % error for error in errors])) # unsharded with mock.patch.object( broker, 'get_shard_usage') as mock_get_shard_usage: info = broker.get_info() mock_get_shard_usage.assert_not_called() check_info({'account': 'myaccount', 'container': 'mycontainer', 'object_count': 1, 'bytes_used': 123, 'db_state': 'unsharded'}) # sharding epoch = next(self.ts) broker.enable_sharding(epoch) self.assertTrue(broker.set_sharding_state()) broker.put_object('o2', next(self.ts).internal, 1, 'text/plain', 'fake etag') broker.put_object('o3', next(self.ts).internal, 320, 'text/plain', 'fake etag') with mock.patch.object( broker, 'get_shard_usage') as mock_get_shard_usage: info = broker.get_info() mock_get_shard_usage.assert_not_called() check_info({'account': 'myaccount', 'container': 'mycontainer', 'object_count': 1, 'bytes_used': 123, 'db_state': 'sharding'}) # sharded self.assertTrue(broker.set_sharded_state()) shard_stats = {'object_count': 1001, 'bytes_used': 3003} with mock.patch.object( broker, 'get_shard_usage') as mock_get_shard_usage: mock_get_shard_usage.return_value = shard_stats info = broker.get_info() mock_get_shard_usage.assert_called_once_with() check_info({'account': 'myaccount', 'container': 'mycontainer', 'object_count': 1001, 'bytes_used': 3003, 'db_state': 'sharded'}) # collapsed sr.set_deleted(next(self.ts)) broker.merge_shard_ranges(sr) with mock.patch.object( broker, 'get_shard_usage') as mock_get_shard_usage: info = broker.get_info() mock_get_shard_usage.assert_not_called() check_info({'account': 'myaccount', 'container': 'mycontainer', 'object_count': 2, 'bytes_used': 321, 'db_state': 'collapsed'}) def test_set_x_syncs(self): broker = ContainerBroker(':memory:', account='test1', container='test2') broker.initialize(Timestamp('1').internal, 0) info = broker.get_info() self.assertEqual(info['x_container_sync_point1'], -1) self.assertEqual(info['x_container_sync_point2'], -1) broker.set_x_container_sync_points(1, 2) info = broker.get_info() self.assertEqual(info['x_container_sync_point1'], 1) self.assertEqual(info['x_container_sync_point2'], 2) def test_get_report_info(self): broker = ContainerBroker(':memory:', account='test1', container='test2') broker.initialize(Timestamp('1').internal, 0) info = broker.get_info() self.assertEqual(info['account'], 'test1') self.assertEqual(info['container'], 'test2') self.assertEqual(info['object_count'], 0) self.assertEqual(info['bytes_used'], 0) self.assertEqual(info['reported_object_count'], 0) self.assertEqual(info['reported_bytes_used'], 0) broker.put_object('o1', Timestamp.now().internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe') info = broker.get_info() self.assertEqual(info['object_count'], 1) self.assertEqual(info['bytes_used'], 123) self.assertEqual(info['reported_object_count'], 0) self.assertEqual(info['reported_bytes_used'], 0) sleep(.00001) broker.put_object('o2', Timestamp.now().internal, 123, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe') info = broker.get_info() self.assertEqual(info['object_count'], 2) self.assertEqual(info['bytes_used'], 246) self.assertEqual(info['reported_object_count'], 0) self.assertEqual(info['reported_bytes_used'], 0) sleep(.00001) broker.put_object('o2', Timestamp.now().internal, 1000, 'text/plain', '5af83e3196bf99f440f31f2e1a6c9afe') info = broker.get_info() self.assertEqual(info['object_count'], 2) self.assertEqual(info['bytes_used'], 1123) self.assertEqual(info['reported_object_count'], 0) self.assertEqual(info['reported_bytes_used'], 0) put_timestamp = Timestamp.now().internal sleep(.001) delete_timestamp = Timestamp.now().internal broker.reported(put_timestamp, delete_timestamp, 2, 1123) info = broker.get_info() self.assertEqual(info['object_count'], 2) self.assertEqual(info['bytes_used'], 1123) self.assertEqual(info['reported_put_timestamp'], put_timestamp) self.assertEqual(info['reported_delete_timestamp'], delete_timestamp) self.assertEqual(info['reported_object_count'], 2) self.assertEqual(info['reported_bytes_used'], 1123) sleep(.00001) broker.delete_object('o1', Timestamp.now().internal) info = broker.get_info() self.assertEqual(info['object_count'], 1) self.assertEqual(info['bytes_used'], 1000) self.assertEqual(info['reported_object_count'], 2) self.assertEqual(info['reported_bytes_used'], 1123) sleep(.00001) broker.delete_object('o2', Timestamp.now().internal) info = broker.get_info() self.assertEqual(info['object_count'], 0) self.assertEqual(info['bytes_used'], 0) self.assertEqual(info['reported_object_count'], 2) self.assertEqual(info['reported_bytes_used'], 1123) @with_tempdir def test_get_replication_info(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'hash.db') broker = ContainerBroker( db_path, account='myaccount', container='mycontainer') broker.initialize(next(self.ts).internal, 0) metadata = {'blah': ['val', next(self.ts).internal]} broker.update_metadata(metadata) expected = broker.get_info() expected['metadata'] = json.dumps(metadata) expected.pop('object_count') expected['count'] = 0 expected['max_row'] = -1 expected['shard_max_row'] = -1 actual = broker.get_replication_info() self.assertEqual(expected, actual) broker.put_object('o1', next(self.ts).internal, 123, 'text/plain', 'fake etag') expected = broker.get_info() expected['metadata'] = json.dumps(metadata) expected.pop('object_count') expected['count'] = 1 expected['max_row'] = 1 expected['shard_max_row'] = -1 actual = broker.get_replication_info() self.assertEqual(expected, actual) sr = ShardRange('.shards_a/c', next(self.ts)) broker.merge_shard_ranges(sr) expected['shard_max_row'] = 1 actual = broker.get_replication_info() self.assertEqual(expected, actual) @with_tempdir def test_remove_objects(self, tempdir): objects = (('undeleted', Timestamp.now().internal, 0, 'text/plain', EMPTY_ETAG, 0, 0), ('other_policy', Timestamp.now().internal, 0, 'text/plain', EMPTY_ETAG, 0, 1), ('deleted', Timestamp.now().internal, 0, 'text/plain', EMPTY_ETAG, 1, 0)) object_names = [o[0] for o in objects] def get_rows(broker): with broker.get() as conn: cursor = conn.execute("SELECT * FROM object") return [r[1] for r in cursor] def do_setup(): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', '%s.db' % uuid4()) broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(Timestamp.now().internal, 0) for obj in objects: # ensure row order matches put order broker.put_object(*obj) broker._commit_puts() self.assertEqual(3, broker.get_max_row()) # sanity check self.assertEqual(object_names, get_rows(broker)) # sanity check return broker broker = do_setup() broker.remove_objects('', '') self.assertFalse(get_rows(broker)) broker = do_setup() broker.remove_objects('deleted', '') self.assertEqual([object_names[2]], get_rows(broker)) broker = do_setup() broker.remove_objects('', 'deleted', max_row=2) self.assertEqual(object_names, get_rows(broker)) broker = do_setup() broker.remove_objects('deleted', 'un') self.assertEqual([object_names[0], object_names[2]], get_rows(broker)) broker = do_setup() broker.remove_objects('', '', max_row=-1) self.assertEqual(object_names, get_rows(broker)) broker = do_setup() broker.remove_objects('', '', max_row=0) self.assertEqual(object_names, get_rows(broker)) broker = do_setup() broker.remove_objects('', '', max_row=1) self.assertEqual(object_names[1:], get_rows(broker)) broker = do_setup() broker.remove_objects('', '', max_row=2) self.assertEqual(object_names[2:], get_rows(broker)) broker = do_setup() broker.remove_objects('', '', max_row=3) self.assertFalse(get_rows(broker)) broker = do_setup() broker.remove_objects('', '', max_row=99) self.assertFalse(get_rows(broker)) def test_get_objects(self): broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) objects_0 = [{'name': 'obj_0_%d' % i, 'created_at': next(self.ts).normal, 'content_type': 'text/plain', 'etag': 'etag_%d' % i, 'size': 1024 * i, 'deleted': i % 2, 'storage_policy_index': 0 } for i in range(1, 8)] objects_1 = [{'name': 'obj_1_%d' % i, 'created_at': next(self.ts).normal, 'content_type': 'text/plain', 'etag': 'etag_%d' % i, 'size': 1024 * i, 'deleted': i % 2, 'storage_policy_index': 1 } for i in range(1, 8)] # merge_objects mutates items broker.merge_items([dict(obj) for obj in objects_0 + objects_1]) actual = broker.get_objects() self.assertEqual(objects_0 + objects_1, actual) with mock.patch('swift.container.backend.CONTAINER_LISTING_LIMIT', 2): actual = broker.get_objects() self.assertEqual(objects_0[:2], actual) with mock.patch('swift.container.backend.CONTAINER_LISTING_LIMIT', 2): actual = broker.get_objects(limit=9) self.assertEqual(objects_0 + objects_1[:2], actual) actual = broker.get_objects(marker=objects_0[2]['name']) self.assertEqual(objects_0[3:] + objects_1, actual) actual = broker.get_objects(end_marker=objects_0[2]['name']) self.assertEqual(objects_0[:2], actual) actual = broker.get_objects(include_deleted=True) self.assertEqual(objects_0[::2] + objects_1[::2], actual) actual = broker.get_objects(include_deleted=False) self.assertEqual(objects_0[1::2] + objects_1[1::2], actual) actual = broker.get_objects(include_deleted=None) self.assertEqual(objects_0 + objects_1, actual) def test_get_objects_since_row(self): broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) obj_names = ['obj%03d' % i for i in range(20)] timestamps = [next(self.ts) for o in obj_names] for name, timestamp in zip(obj_names, timestamps): broker.put_object(name, timestamp.internal, 0, 'text/plain', EMPTY_ETAG) broker._commit_puts() # ensure predictable row order timestamps = [next(self.ts) for o in obj_names[10:]] for name, timestamp in zip(obj_names[10:], timestamps): broker.put_object(name, timestamp.internal, 0, 'text/plain', EMPTY_ETAG, deleted=1) broker._commit_puts() # ensure predictable row order # sanity check self.assertEqual(30, broker.get_max_row()) actual = broker.get_objects() self.assertEqual(obj_names, [o['name'] for o in actual]) # all rows included actual = broker.get_objects(since_row=None) self.assertEqual(obj_names, [o['name'] for o in actual]) actual = broker.get_objects(since_row=-1) self.assertEqual(obj_names, [o['name'] for o in actual]) # selected rows for since_row in range(10): actual = broker.get_objects(since_row=since_row) with annotate_failure(since_row): self.assertEqual(obj_names[since_row:], [o['name'] for o in actual]) for since_row in range(10, 20): actual = broker.get_objects(since_row=since_row) with annotate_failure(since_row): self.assertEqual(obj_names[10:], [o['name'] for o in actual]) for since_row in range(20, len(obj_names) + 1): actual = broker.get_objects(since_row=since_row) with annotate_failure(since_row): self.assertEqual(obj_names[since_row - 10:], [o['name'] for o in actual]) self.assertFalse(broker.get_objects(end_marker=obj_names[5], since_row=5)) def test_list_objects_iter(self): # Test ContainerBroker.list_objects_iter broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) for obj1 in range(4): for obj2 in range(125): broker.put_object('%d/%04d' % (obj1, obj2), Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') for obj in range(125): broker.put_object('2/0051/%04d' % obj, Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') for obj in range(125): broker.put_object('3/%04d/0049' % obj, Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') listing = broker.list_objects_iter(100, '', None, None, '') self.assertEqual(len(listing), 100) self.assertEqual(listing[0][0], '0/0000') self.assertEqual(listing[-1][0], '0/0099') listing = broker.list_objects_iter(100, '', '0/0050', None, '') self.assertEqual(len(listing), 50) self.assertEqual(listing[0][0], '0/0000') self.assertEqual(listing[-1][0], '0/0049') listing = broker.list_objects_iter(100, '0/0099', None, None, '') self.assertEqual(len(listing), 100) self.assertEqual(listing[0][0], '0/0100') self.assertEqual(listing[-1][0], '1/0074') listing = broker.list_objects_iter(55, '1/0074', None, None, '') self.assertEqual(len(listing), 55) self.assertEqual(listing[0][0], '1/0075') self.assertEqual(listing[-1][0], '2/0004') listing = broker.list_objects_iter(55, '2/0005', None, None, '', reverse=True) self.assertEqual(len(listing), 55) self.assertEqual(listing[0][0], '2/0004') self.assertEqual(listing[-1][0], '1/0075') listing = broker.list_objects_iter(10, '', None, '0/01', '') self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '0/0100') self.assertEqual(listing[-1][0], '0/0109') listing = broker.list_objects_iter(10, '', None, '0/', '/') self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '0/0000') self.assertEqual(listing[-1][0], '0/0009') listing = broker.list_objects_iter(10, '', None, '0/', '/', reverse=True) self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '0/0124') self.assertEqual(listing[-1][0], '0/0115') # Same as above, but using the path argument. listing = broker.list_objects_iter(10, '', None, None, '', '0') self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '0/0000') self.assertEqual(listing[-1][0], '0/0009') listing = broker.list_objects_iter(10, '', None, None, '', '0', reverse=True) self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '0/0124') self.assertEqual(listing[-1][0], '0/0115') listing = broker.list_objects_iter(10, '', None, '', '/') self.assertEqual(len(listing), 4) self.assertEqual([row[0] for row in listing], ['0/', '1/', '2/', '3/']) listing = broker.list_objects_iter(10, '', None, '', '/', reverse=True) self.assertEqual(len(listing), 4) self.assertEqual([row[0] for row in listing], ['3/', '2/', '1/', '0/']) listing = broker.list_objects_iter(10, '2', None, None, '/') self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['2/', '3/']) listing = broker.list_objects_iter(10, '2/', None, None, '/') self.assertEqual(len(listing), 1) self.assertEqual([row[0] for row in listing], ['3/']) listing = broker.list_objects_iter(10, '2/', None, None, '/', reverse=True) self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['1/', '0/']) listing = broker.list_objects_iter(10, '20', None, None, '/', reverse=True) self.assertEqual(len(listing), 3) self.assertEqual([row[0] for row in listing], ['2/', '1/', '0/']) listing = broker.list_objects_iter(10, '2/0050', None, '2/', '/') self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '2/0051') self.assertEqual(listing[1][0], '2/0051/') self.assertEqual(listing[2][0], '2/0052') self.assertEqual(listing[-1][0], '2/0059') listing = broker.list_objects_iter(10, '3/0045', None, '3/', '/') self.assertEqual(len(listing), 10) self.assertEqual([row[0] for row in listing], ['3/0045/', '3/0046', '3/0046/', '3/0047', '3/0047/', '3/0048', '3/0048/', '3/0049', '3/0049/', '3/0050']) broker.put_object('3/0049/', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') listing = broker.list_objects_iter(10, '3/0048', None, None, None) self.assertEqual(len(listing), 10) self.assertEqual( [row[0] for row in listing], ['3/0048/0049', '3/0049', '3/0049/', '3/0049/0049', '3/0050', '3/0050/0049', '3/0051', '3/0051/0049', '3/0052', '3/0052/0049']) listing = broker.list_objects_iter(10, '3/0048', None, '3/', '/') self.assertEqual(len(listing), 10) self.assertEqual( [row[0] for row in listing], ['3/0048/', '3/0049', '3/0049/', '3/0050', '3/0050/', '3/0051', '3/0051/', '3/0052', '3/0052/', '3/0053']) listing = broker.list_objects_iter(10, None, None, '3/0049/', '/') self.assertEqual(len(listing), 2) self.assertEqual( [row[0] for row in listing], ['3/0049/', '3/0049/0049']) listing = broker.list_objects_iter(10, None, None, None, None, '3/0049') self.assertEqual(len(listing), 1) self.assertEqual([row[0] for row in listing], ['3/0049/0049']) listing = broker.list_objects_iter(2, None, None, '3/', '/') self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['3/0000', '3/0000/']) listing = broker.list_objects_iter(2, None, None, None, None, '3') self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['3/0000', '3/0001']) def test_list_objects_iter_with_reserved_name(self): broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(next(self.ts).internal, 0) broker.put_object( 'foo', next(self.ts).internal, 0, 0, 0, POLICIES.default.idx) broker.put_object( get_reserved_name('foo'), next(self.ts).internal, 0, 0, 0, POLICIES.default.idx) listing = broker.list_objects_iter(100, None, None, '', '') self.assertEqual([row[0] for row in listing], ['foo']) listing = broker.list_objects_iter(100, None, None, '', '', reverse=True) self.assertEqual([row[0] for row in listing], ['foo']) listing = broker.list_objects_iter(100, None, None, '', '', allow_reserved=True) self.assertEqual([row[0] for row in listing], [get_reserved_name('foo'), 'foo']) listing = broker.list_objects_iter(100, None, None, '', '', reverse=True, allow_reserved=True) self.assertEqual([row[0] for row in listing], ['foo', get_reserved_name('foo')]) def test_reverse_prefix_delim(self): expectations = [ { 'objects': [ 'topdir1/subdir1.0/obj1', 'topdir1/subdir1.1/obj1', 'topdir1/subdir1/obj1', ], 'params': { 'prefix': 'topdir1/', 'delimiter': '/', }, 'expected': [ 'topdir1/subdir1.0/', 'topdir1/subdir1.1/', 'topdir1/subdir1/', ], }, { 'objects': [ 'topdir1/subdir1.0/obj1', 'topdir1/subdir1.1/obj1', 'topdir1/subdir1/obj1', 'topdir1/subdir10', 'topdir1/subdir10/obj1', ], 'params': { 'prefix': 'topdir1/', 'delimiter': '/', }, 'expected': [ 'topdir1/subdir1.0/', 'topdir1/subdir1.1/', 'topdir1/subdir1/', 'topdir1/subdir10', 'topdir1/subdir10/', ], }, { 'objects': [ 'topdir1/subdir1/obj1', 'topdir1/subdir1.0/obj1', 'topdir1/subdir1.1/obj1', ], 'params': { 'prefix': 'topdir1/', 'delimiter': '/', 'reverse': True, }, 'expected': [ 'topdir1/subdir1/', 'topdir1/subdir1.1/', 'topdir1/subdir1.0/', ], }, { 'objects': [ 'topdir1/subdir10/obj1', 'topdir1/subdir10', 'topdir1/subdir1/obj1', 'topdir1/subdir1.0/obj1', 'topdir1/subdir1.1/obj1', ], 'params': { 'prefix': 'topdir1/', 'delimiter': '/', 'reverse': True, }, 'expected': [ 'topdir1/subdir10/', 'topdir1/subdir10', 'topdir1/subdir1/', 'topdir1/subdir1.1/', 'topdir1/subdir1.0/', ], }, { 'objects': [ '1', '2', '3/1', '3/2.2', '3/2/1', '3/2/2', '3/3', '4', ], 'params': { 'path': '3/', }, 'expected': [ '3/1', '3/2.2', '3/3', ], }, { 'objects': [ '1', '2', '3/1', '3/2.2', '3/2/1', '3/2/2', '3/3', '4', ], 'params': { 'path': '3/', 'reverse': True, }, 'expected': [ '3/3', '3/2.2', '3/1', ], }, ] ts = make_timestamp_iter() default_listing_params = { 'limit': 10000, 'marker': '', 'end_marker': None, 'prefix': None, 'delimiter': None, } obj_create_params = { 'size': 0, 'content_type': 'application/test', 'etag': EMPTY_ETAG, } failures = [] for expected in expectations: broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(next(ts).internal, 0) for name in expected['objects']: broker.put_object(name, next(ts).internal, **obj_create_params) params = default_listing_params.copy() params.update(expected['params']) listing = list(o[0] for o in broker.list_objects_iter(**params)) if listing != expected['expected']: expected['listing'] = listing failures.append( "With objects %(objects)r, the params %(params)r " "produced %(listing)r instead of %(expected)r" % expected) self.assertFalse(failures, "Found the following failures:\n%s" % '\n'.join(failures)) def test_list_objects_iter_non_slash(self): # Test ContainerBroker.list_objects_iter using a # delimiter that is not a slash broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) for obj1 in range(4): for obj2 in range(125): broker.put_object('%d:%04d' % (obj1, obj2), Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') for obj in range(125): broker.put_object('2:0051:%04d' % obj, Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') for obj in range(125): broker.put_object('3:%04d:0049' % obj, Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') listing = broker.list_objects_iter(100, '', None, None, '') self.assertEqual(len(listing), 100) self.assertEqual(listing[0][0], '0:0000') self.assertEqual(listing[-1][0], '0:0099') listing = broker.list_objects_iter(100, '', '0:0050', None, '') self.assertEqual(len(listing), 50) self.assertEqual(listing[0][0], '0:0000') self.assertEqual(listing[-1][0], '0:0049') listing = broker.list_objects_iter(100, '0:0099', None, None, '') self.assertEqual(len(listing), 100) self.assertEqual(listing[0][0], '0:0100') self.assertEqual(listing[-1][0], '1:0074') listing = broker.list_objects_iter(55, '1:0074', None, None, '') self.assertEqual(len(listing), 55) self.assertEqual(listing[0][0], '1:0075') self.assertEqual(listing[-1][0], '2:0004') listing = broker.list_objects_iter(10, '', None, '0:01', '') self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '0:0100') self.assertEqual(listing[-1][0], '0:0109') listing = broker.list_objects_iter(10, '', None, '0:', ':') self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '0:0000') self.assertEqual(listing[-1][0], '0:0009') # Same as above, but using the path argument, so nothing should be # returned since path uses a '/' as a delimiter. listing = broker.list_objects_iter(10, '', None, None, '', '0') self.assertEqual(len(listing), 0) listing = broker.list_objects_iter(10, '', None, '', ':') self.assertEqual(len(listing), 4) self.assertEqual([row[0] for row in listing], ['0:', '1:', '2:', '3:']) listing = broker.list_objects_iter(10, '2', None, None, ':') self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['2:', '3:']) listing = broker.list_objects_iter(10, '2:', None, None, ':') self.assertEqual(len(listing), 1) self.assertEqual([row[0] for row in listing], ['3:']) listing = broker.list_objects_iter(10, '2:0050', None, '2:', ':') self.assertEqual(len(listing), 10) self.assertEqual(listing[0][0], '2:0051') self.assertEqual(listing[1][0], '2:0051:') self.assertEqual(listing[2][0], '2:0052') self.assertEqual(listing[-1][0], '2:0059') listing = broker.list_objects_iter(10, '3:0045', None, '3:', ':') self.assertEqual(len(listing), 10) self.assertEqual([row[0] for row in listing], ['3:0045:', '3:0046', '3:0046:', '3:0047', '3:0047:', '3:0048', '3:0048:', '3:0049', '3:0049:', '3:0050']) broker.put_object('3:0049:', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') listing = broker.list_objects_iter(10, '3:0048', None, None, None) self.assertEqual(len(listing), 10) self.assertEqual( [row[0] for row in listing], ['3:0048:0049', '3:0049', '3:0049:', '3:0049:0049', '3:0050', '3:0050:0049', '3:0051', '3:0051:0049', '3:0052', '3:0052:0049']) listing = broker.list_objects_iter(10, '3:0048', None, '3:', ':') self.assertEqual(len(listing), 10) self.assertEqual( [row[0] for row in listing], ['3:0048:', '3:0049', '3:0049:', '3:0050', '3:0050:', '3:0051', '3:0051:', '3:0052', '3:0052:', '3:0053']) listing = broker.list_objects_iter(10, None, None, '3:0049:', ':') self.assertEqual(len(listing), 2) self.assertEqual( [row[0] for row in listing], ['3:0049:', '3:0049:0049']) # Same as above, but using the path argument, so nothing should be # returned since path uses a '/' as a delimiter. listing = broker.list_objects_iter(10, None, None, None, None, '3:0049') self.assertEqual(len(listing), 0) listing = broker.list_objects_iter(2, None, None, '3:', ':') self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['3:0000', '3:0000:']) listing = broker.list_objects_iter(2, None, None, None, None, '3') self.assertEqual(len(listing), 0) def test_list_objects_iter_prefix_delim(self): # Test ContainerBroker.list_objects_iter broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) broker.put_object( '/pets/dogs/1', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( '/pets/dogs/2', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( '/pets/fish/a', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( '/pets/fish/b', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( '/pets/fish_info.txt', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( '/snakes', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') # def list_objects_iter(self, limit, marker, prefix, delimiter, # path=None, format=None): listing = broker.list_objects_iter(100, None, None, '/pets/f', '/') self.assertEqual([row[0] for row in listing], ['/pets/fish/', '/pets/fish_info.txt']) listing = broker.list_objects_iter(100, None, None, '/pets/fish', '/') self.assertEqual([row[0] for row in listing], ['/pets/fish/', '/pets/fish_info.txt']) listing = broker.list_objects_iter(100, None, None, '/pets/fish/', '/') self.assertEqual([row[0] for row in listing], ['/pets/fish/a', '/pets/fish/b']) listing = broker.list_objects_iter(100, None, None, None, '/') self.assertEqual([row[0] for row in listing], ['/']) def test_list_objects_iter_order_and_reverse(self): # Test ContainerBroker.list_objects_iter broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) broker.put_object( 'o1', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( 'o10', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( 'O1', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( 'o2', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( 'o3', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object( 'O4', Timestamp(0).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') listing = broker.list_objects_iter(100, None, None, '', '', reverse=False) self.assertEqual([row[0] for row in listing], ['O1', 'O4', 'o1', 'o10', 'o2', 'o3']) listing = broker.list_objects_iter(100, None, None, '', '', reverse=True) self.assertEqual([row[0] for row in listing], ['o3', 'o2', 'o10', 'o1', 'O4', 'O1']) listing = broker.list_objects_iter(2, None, None, '', '', reverse=True) self.assertEqual([row[0] for row in listing], ['o3', 'o2']) listing = broker.list_objects_iter(100, 'o2', 'O4', '', '', reverse=True) self.assertEqual([row[0] for row in listing], ['o10', 'o1']) def test_double_check_trailing_delimiter(self): # Test ContainerBroker.list_objects_iter for a # container that has an odd file with a trailing delimiter broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) broker.put_object('a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a/', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a/a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a/a/a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a/a/b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a/b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('b/a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('b/b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('c', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a/0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0/', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('00', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0/0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0/00', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0/1', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0/1/', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0/1/0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('1', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('1/', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('1/0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') listing = broker.list_objects_iter(25, None, None, None, None) self.assertEqual(len(listing), 22) self.assertEqual( [row[0] for row in listing], ['0', '0/', '0/0', '0/00', '0/1', '0/1/', '0/1/0', '00', '1', '1/', '1/0', 'a', 'a/', 'a/0', 'a/a', 'a/a/a', 'a/a/b', 'a/b', 'b', 'b/a', 'b/b', 'c']) listing = broker.list_objects_iter(25, None, None, '', '/') self.assertEqual(len(listing), 10) self.assertEqual( [row[0] for row in listing], ['0', '0/', '00', '1', '1/', 'a', 'a/', 'b', 'b/', 'c']) listing = broker.list_objects_iter(25, None, None, 'a/', '/') self.assertEqual(len(listing), 5) self.assertEqual( [row[0] for row in listing], ['a/', 'a/0', 'a/a', 'a/a/', 'a/b']) listing = broker.list_objects_iter(25, None, None, '0/', '/') self.assertEqual(len(listing), 5) self.assertEqual( [row[0] for row in listing], ['0/', '0/0', '0/00', '0/1', '0/1/']) listing = broker.list_objects_iter(25, None, None, '0/1/', '/') self.assertEqual(len(listing), 2) self.assertEqual( [row[0] for row in listing], ['0/1/', '0/1/0']) listing = broker.list_objects_iter(25, None, None, 'b/', '/') self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['b/a', 'b/b']) def test_double_check_trailing_delimiter_non_slash(self): # Test ContainerBroker.list_objects_iter for a # container that has an odd file with a trailing delimiter broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) broker.put_object('a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a:', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a:a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a:a:a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a:a:b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a:b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('b:a', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('b:b', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('c', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('a:0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0:', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('00', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0:0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0:00', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0:1', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0:1:', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('0:1:0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('1', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('1:', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('1:0', Timestamp.now().internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') listing = broker.list_objects_iter(25, None, None, None, None) self.assertEqual(len(listing), 22) self.assertEqual( [row[0] for row in listing], ['0', '00', '0:', '0:0', '0:00', '0:1', '0:1:', '0:1:0', '1', '1:', '1:0', 'a', 'a:', 'a:0', 'a:a', 'a:a:a', 'a:a:b', 'a:b', 'b', 'b:a', 'b:b', 'c']) listing = broker.list_objects_iter(25, None, None, '', ':') self.assertEqual(len(listing), 10) self.assertEqual( [row[0] for row in listing], ['0', '00', '0:', '1', '1:', 'a', 'a:', 'b', 'b:', 'c']) listing = broker.list_objects_iter(25, None, None, 'a:', ':') self.assertEqual(len(listing), 5) self.assertEqual( [row[0] for row in listing], ['a:', 'a:0', 'a:a', 'a:a:', 'a:b']) listing = broker.list_objects_iter(25, None, None, '0:', ':') self.assertEqual(len(listing), 5) self.assertEqual( [row[0] for row in listing], ['0:', '0:0', '0:00', '0:1', '0:1:']) listing = broker.list_objects_iter(25, None, None, '0:1:', ':') self.assertEqual(len(listing), 2) self.assertEqual( [row[0] for row in listing], ['0:1:', '0:1:0']) listing = broker.list_objects_iter(25, None, None, 'b:', ':') self.assertEqual(len(listing), 2) self.assertEqual([row[0] for row in listing], ['b:a', 'b:b']) def test_chexor(self): def md5_str(s): if not isinstance(s, bytes): s = s.encode('utf8') return md5(s, usedforsecurity=False).hexdigest() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) broker.put_object('a', Timestamp(1).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker.put_object('b', Timestamp(2).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') hasha = md5_str('%s-%s' % ('a', Timestamp(1).internal)) hashb = md5_str('%s-%s' % ('b', Timestamp(2).internal)) hashc = '%032x' % (int(hasha, 16) ^ int(hashb, 16)) self.assertEqual(broker.get_info()['hash'], hashc) broker.put_object('b', Timestamp(3).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') hashb = md5_str('%s-%s' % ('b', Timestamp(3).internal)) hashc = '%032x' % (int(hasha, 16) ^ int(hashb, 16)) self.assertEqual(broker.get_info()['hash'], hashc) @with_tempdir def test_newid(self, tempdir): # test DatabaseBroker.newid db_path = os.path.join( tempdir, "d1234", 'contianers', 'part', 'suffix', 'hsh') os.makedirs(db_path) broker = ContainerBroker(os.path.join(db_path, 'my.db'), account='a', container='c') broker.initialize(Timestamp('1').internal, 0) id = broker.get_info()['id'] broker.newid('someid') self.assertNotEqual(id, broker.get_info()['id']) # ends in the device name (from the path) unless it's an old # container with just a uuid4 (tested in legecy broker # tests e.g *BeforeMetaData) if len(id) > 36: self.assertTrue(id.endswith('d1234')) # But the newid'ed version will now have the decide self.assertTrue(broker.get_info()['id'].endswith('d1234')) # if we move the broker (happens after an rsync) new_db_path = os.path.join( tempdir, "d5678", 'containers', 'part', 'suffix', 'hsh') os.makedirs(new_db_path) shutil.copy(os.path.join(db_path, 'my.db'), os.path.join(new_db_path, 'my.db')) new_broker = ContainerBroker(os.path.join(new_db_path, 'my.db'), account='a', container='c') new_broker.newid(id) # ends in the device name (from the path) self.assertFalse(new_broker.get_info()['id'].endswith('d1234')) self.assertTrue(new_broker.get_info()['id'].endswith('d5678')) def test_get_items_since(self): # test DatabaseBroker.get_items_since broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) broker.put_object('a', Timestamp(1).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') max_row = broker.get_replication_info()['max_row'] broker.put_object('b', Timestamp(2).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') items = broker.get_items_since(max_row, 1000) self.assertEqual(len(items), 1) self.assertEqual(items[0]['name'], 'b') def test_sync_merging(self): # exercise the DatabaseBroker sync functions a bit broker1 = ContainerBroker(':memory:', account='a', container='c') broker1.initialize(Timestamp('1').internal, 0) broker2 = ContainerBroker(':memory:', account='a', container='c') broker2.initialize(Timestamp('1').internal, 0) self.assertEqual(broker2.get_sync('12345'), -1) broker1.merge_syncs([{'sync_point': 3, 'remote_id': '12345'}]) broker2.merge_syncs(broker1.get_syncs()) self.assertEqual(broker2.get_sync('12345'), 3) def test_merge_items(self): broker1 = ContainerBroker(':memory:', account='a', container='c') broker1.initialize(Timestamp('1').internal, 0) broker2 = ContainerBroker(':memory:', account='a', container='c') broker2.initialize(Timestamp('1').internal, 0) broker1.put_object('a', Timestamp(1).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker1.put_object('b', Timestamp(2).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') id = broker1.get_info()['id'] broker2.merge_items(broker1.get_items_since( broker2.get_sync(id), 1000), id) items = broker2.get_items_since(-1, 1000) self.assertEqual(len(items), 2) self.assertEqual(['a', 'b'], sorted([rec['name'] for rec in items])) broker1.put_object('c', Timestamp(3).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(broker1.get_items_since( broker2.get_sync(id), 1000), id) items = broker2.get_items_since(-1, 1000) self.assertEqual(len(items), 3) self.assertEqual(['a', 'b', 'c'], sorted([rec['name'] for rec in items])) @with_tempdir def test_merge_items_is_green(self, tempdir): ts = make_timestamp_iter() db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(ts).internal, 1) broker.put_object('b', next(ts).internal, 0, 'text/plain', EMPTY_ETAG) with mock.patch('swift.container.backend.tpool') as mock_tpool: broker.get_info() mock_tpool.execute.assert_called_once() def test_merge_items_overwrite_unicode(self): # test DatabaseBroker.merge_items snowman = u'\N{SNOWMAN}' if six.PY2: snowman = snowman.encode('utf-8') broker1 = ContainerBroker(':memory:', account='a', container='c') broker1.initialize(Timestamp('1').internal, 0) id = broker1.get_info()['id'] broker2 = ContainerBroker(':memory:', account='a', container='c') broker2.initialize(Timestamp('1').internal, 0) broker1.put_object(snowman, Timestamp(2).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker1.put_object('b', Timestamp(3).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(json.loads(json.dumps(broker1.get_items_since( broker2.get_sync(id), 1000))), id) broker1.put_object(snowman, Timestamp(4).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(json.loads(json.dumps(broker1.get_items_since( broker2.get_sync(id), 1000))), id) items = broker2.get_items_since(-1, 1000) self.assertEqual(['b', snowman], sorted([rec['name'] for rec in items])) for rec in items: if rec['name'] == snowman: self.assertEqual(rec['created_at'], Timestamp(4).internal) if rec['name'] == 'b': self.assertEqual(rec['created_at'], Timestamp(3).internal) def test_merge_items_overwrite(self): # test DatabaseBroker.merge_items broker1 = ContainerBroker(':memory:', account='a', container='c') broker1.initialize(Timestamp('1').internal, 0) id = broker1.get_info()['id'] broker2 = ContainerBroker(':memory:', account='a', container='c') broker2.initialize(Timestamp('1').internal, 0) broker1.put_object('a', Timestamp(2).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker1.put_object('b', Timestamp(3).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(broker1.get_items_since( broker2.get_sync(id), 1000), id) broker1.put_object('a', Timestamp(4).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(broker1.get_items_since( broker2.get_sync(id), 1000), id) items = broker2.get_items_since(-1, 1000) self.assertEqual(['a', 'b'], sorted([rec['name'] for rec in items])) for rec in items: if rec['name'] == 'a': self.assertEqual(rec['created_at'], Timestamp(4).internal) if rec['name'] == 'b': self.assertEqual(rec['created_at'], Timestamp(3).internal) def test_merge_items_post_overwrite_out_of_order(self): # test DatabaseBroker.merge_items broker1 = ContainerBroker(':memory:', account='a', container='c') broker1.initialize(Timestamp('1').internal, 0) id = broker1.get_info()['id'] broker2 = ContainerBroker(':memory:', account='a', container='c') broker2.initialize(Timestamp('1').internal, 0) broker1.put_object('a', Timestamp(2).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker1.put_object('b', Timestamp(3).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(broker1.get_items_since( broker2.get_sync(id), 1000), id) broker1.put_object('a', Timestamp(4).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(broker1.get_items_since( broker2.get_sync(id), 1000), id) items = broker2.get_items_since(-1, 1000) self.assertEqual(['a', 'b'], sorted([rec['name'] for rec in items])) for rec in items: if rec['name'] == 'a': self.assertEqual(rec['created_at'], Timestamp(4).internal) if rec['name'] == 'b': self.assertEqual(rec['created_at'], Timestamp(3).internal) self.assertEqual(rec['content_type'], 'text/plain') items = broker2.get_items_since(-1, 1000) self.assertEqual(['a', 'b'], sorted([rec['name'] for rec in items])) for rec in items: if rec['name'] == 'a': self.assertEqual(rec['created_at'], Timestamp(4).internal) if rec['name'] == 'b': self.assertEqual(rec['created_at'], Timestamp(3).internal) broker1.put_object('b', Timestamp(5).internal, 0, 'text/plain', 'd41d8cd98f00b204e9800998ecf8427e') broker2.merge_items(broker1.get_items_since( broker2.get_sync(id), 1000), id) items = broker2.get_items_since(-1, 1000) self.assertEqual(['a', 'b'], sorted([rec['name'] for rec in items])) for rec in items: if rec['name'] == 'a': self.assertEqual(rec['created_at'], Timestamp(4).internal) if rec['name'] == 'b': self.assertEqual(rec['created_at'], Timestamp(5).internal) self.assertEqual(rec['content_type'], 'text/plain') def test_set_storage_policy_index(self): ts = make_timestamp_iter() broker = ContainerBroker(':memory:', account='test_account', container='test_container') timestamp = next(ts) broker.initialize(timestamp.internal, 0) info = broker.get_info() self.assertEqual(0, info['storage_policy_index']) # sanity check self.assertEqual(0, info['object_count']) self.assertEqual(0, info['bytes_used']) if self.__class__ in ( TestContainerBrokerBeforeMetadata, TestContainerBrokerBeforeXSync, TestContainerBrokerBeforeSPI, TestContainerBrokerBeforeShardRanges, TestContainerBrokerBeforeShardRangeReportedColumn, TestContainerBrokerBeforeShardRangeTombstonesColumn): self.assertEqual(info['status_changed_at'], '0') else: self.assertEqual(timestamp.internal, info['status_changed_at']) expected = {0: {'object_count': 0, 'bytes_used': 0}} self.assertEqual(expected, broker.get_policy_stats()) timestamp = next(ts) broker.set_storage_policy_index(111, timestamp.internal) self.assertEqual(broker.storage_policy_index, 111) info = broker.get_info() self.assertEqual(111, info['storage_policy_index']) self.assertEqual(0, info['object_count']) self.assertEqual(0, info['bytes_used']) self.assertEqual(timestamp.internal, info['status_changed_at']) expected[111] = {'object_count': 0, 'bytes_used': 0} self.assertEqual(expected, broker.get_policy_stats()) timestamp = next(ts) broker.set_storage_policy_index(222, timestamp.internal) self.assertEqual(broker.storage_policy_index, 222) info = broker.get_info() self.assertEqual(222, info['storage_policy_index']) self.assertEqual(0, info['object_count']) self.assertEqual(0, info['bytes_used']) self.assertEqual(timestamp.internal, info['status_changed_at']) expected[222] = {'object_count': 0, 'bytes_used': 0} self.assertEqual(expected, broker.get_policy_stats()) old_timestamp, timestamp = timestamp, next(ts) # setting again is idempotent broker.set_storage_policy_index(222, timestamp.internal) info = broker.get_info() self.assertEqual(222, info['storage_policy_index']) self.assertEqual(0, info['object_count']) self.assertEqual(0, info['bytes_used']) self.assertEqual(old_timestamp.internal, info['status_changed_at']) self.assertEqual(expected, broker.get_policy_stats()) def test_set_storage_policy_index_empty(self): # Putting an object may trigger migrations, so test with a # never-had-an-object container to make sure we handle it broker = ContainerBroker(':memory:', account='test_account', container='test_container') broker.initialize(Timestamp('1').internal, 0) info = broker.get_info() self.assertEqual(0, info['storage_policy_index']) broker.set_storage_policy_index(2) info = broker.get_info() self.assertEqual(2, info['storage_policy_index']) def test_reconciler_sync(self): broker = ContainerBroker(':memory:', account='test_account', container='test_container') broker.initialize(Timestamp('1').internal, 0) self.assertEqual(-1, broker.get_reconciler_sync()) broker.update_reconciler_sync(10) self.assertEqual(10, broker.get_reconciler_sync()) @with_tempdir def test_legacy_pending_files(self, tempdir): ts = make_timestamp_iter() db_path = os.path.join(tempdir, 'container.db') # first init an acct DB without the policy_stat table present broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(ts).internal, 1) # manually make some pending entries lacking storage_policy_index with open(broker.pending_file, 'a+b') as fp: for i in range(10): name, timestamp, size, content_type, etag, deleted = ( 'o%s' % i, next(ts).internal, 0, 'c', 'e', 0) fp.write(b':') fp.write(base64.b64encode(pickle.dumps( (name, timestamp, size, content_type, etag, deleted), protocol=2))) fp.flush() # use put_object to append some more entries with different # values for storage_policy_index for i in range(10, 30): name = 'o%s' % i if i < 20: size = 1 storage_policy_index = 0 else: size = 2 storage_policy_index = 1 broker.put_object(name, next(ts).internal, size, 'c', 'e', 0, storage_policy_index=storage_policy_index) broker._commit_puts_stale_ok() # 10 objects with 0 bytes each in the legacy pending entries # 10 objects with 1 bytes each in storage policy 0 # 10 objects with 2 bytes each in storage policy 1 expected = { 0: {'object_count': 20, 'bytes_used': 10}, 1: {'object_count': 10, 'bytes_used': 20}, } self.assertEqual(broker.get_policy_stats(), expected) @with_tempdir def test_get_info_no_stale_reads(self, tempdir): ts = make_timestamp_iter() db_path = os.path.join(tempdir, 'container.db') def mock_commit_puts(): raise sqlite3.OperationalError('unable to open database file') broker = ContainerBroker(db_path, account='a', container='c', stale_reads_ok=False) broker.initialize(next(ts).internal, 1) # manually make some pending entries with open(broker.pending_file, 'a+b') as fp: for i in range(10): name, timestamp, size, content_type, etag, deleted = ( 'o%s' % i, next(ts).internal, 0, 'c', 'e', 0) fp.write(b':') fp.write(base64.b64encode(pickle.dumps( (name, timestamp, size, content_type, etag, deleted), protocol=2))) fp.flush() broker._commit_puts = mock_commit_puts with self.assertRaises(sqlite3.OperationalError) as exc_context: broker.get_info() self.assertIn('unable to open database file', str(exc_context.exception)) @with_tempdir def test_get_info_stale_read_ok(self, tempdir): ts = make_timestamp_iter() db_path = os.path.join(tempdir, 'container.db') def mock_commit_puts(): raise sqlite3.OperationalError('unable to open database file') broker = ContainerBroker(db_path, account='a', container='c', stale_reads_ok=True) broker.initialize(next(ts).internal, 1) # manually make some pending entries with open(broker.pending_file, 'a+b') as fp: for i in range(10): name, timestamp, size, content_type, etag, deleted = ( 'o%s' % i, next(ts).internal, 0, 'c', 'e', 0) fp.write(b':') fp.write(base64.b64encode(pickle.dumps( (name, timestamp, size, content_type, etag, deleted), protocol=2))) fp.flush() broker._commit_puts = mock_commit_puts broker.get_info() @with_tempdir def test_create_broker(self, tempdir): broker, init = ContainerBroker.create_broker(tempdir, 0, 'a', 'c') hsh = hash_path('a', 'c') expected_path = os.path.join( tempdir, 'containers', '0', hsh[-3:], hsh, hsh + '.db') self.assertEqual(expected_path, broker.db_file) self.assertTrue(os.path.isfile(expected_path)) self.assertTrue(init) broker, init = ContainerBroker.create_broker(tempdir, 0, 'a', 'c') self.assertEqual(expected_path, broker.db_file) self.assertFalse(init) ts = Timestamp.now() broker, init = ContainerBroker.create_broker(tempdir, 0, 'a', 'c1', put_timestamp=ts.internal) hsh = hash_path('a', 'c1') expected_path = os.path.join( tempdir, 'containers', '0', hsh[-3:], hsh, hsh + '.db') self.assertEqual(expected_path, broker.db_file) self.assertTrue(os.path.isfile(expected_path)) self.assertEqual(ts.internal, broker.get_info()['put_timestamp']) self.assertEqual(0, broker.get_info()['storage_policy_index']) self.assertTrue(init) epoch = Timestamp.now() broker, init = ContainerBroker.create_broker(tempdir, 0, 'a', 'c3', epoch=epoch) hsh = hash_path('a', 'c3') expected_path = os.path.join( tempdir, 'containers', '0', hsh[-3:], hsh, '%s_%s.db' % (hsh, epoch.internal)) self.assertEqual(expected_path, broker.db_file) self.assertTrue(init) @with_tempdir def test_pending_file_name(self, tempdir): # pending file should have same name for sharded or unsharded db expected_pending_path = os.path.join(tempdir, 'container.db.pending') db_path = os.path.join(tempdir, 'container.db') fresh_db_path = os.path.join(tempdir, 'container_epoch.db') def do_test(given_db_file, expected_db_file): broker = ContainerBroker(given_db_file, account='a', container='c') self.assertEqual(expected_pending_path, broker.pending_file) self.assertEqual(expected_db_file, broker.db_file) # no files exist do_test(db_path, db_path) do_test(fresh_db_path, fresh_db_path) # only container.db exists - unsharded with open(db_path, 'wb'): pass do_test(db_path, db_path) do_test(fresh_db_path, db_path) # container.db and container_shard.db exist - sharding with open(fresh_db_path, 'wb'): pass do_test(db_path, fresh_db_path) do_test(fresh_db_path, fresh_db_path) # only container_shard.db exists - sharded os.unlink(db_path) do_test(db_path, fresh_db_path) do_test(fresh_db_path, fresh_db_path) @with_tempdir def test_sharding_sysmeta(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker( db_path, account='myaccount', container='mycontainer') broker.initialize(Timestamp.now().internal) expected = 'aaa/ccc' with mock_timestamp_now() as now: broker.set_sharding_sysmeta('Root', expected) actual = broker.metadata self.assertEqual([expected, now.internal], actual.get('X-Container-Sysmeta-Shard-Root')) self.assertEqual(expected, broker.get_sharding_sysmeta('Root')) expected = {'key': 'value'} with mock_timestamp_now() as now: broker.set_sharding_sysmeta('test', expected) actual = broker.metadata self.assertEqual([expected, now.internal], actual.get('X-Container-Sysmeta-Shard-test')) self.assertEqual(expected, broker.get_sharding_sysmeta('test')) @with_tempdir def test_path(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker( db_path, account='myaccount', container='mycontainer') broker.initialize(next(self.ts).internal, 1) # make sure we can cope with unitialized account and container broker.account = broker.container = None self.assertEqual('myaccount/mycontainer', broker.path) @with_tempdir def test_old_style_root_account_container_path(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker( db_path, account='root_a', container='root_c') broker.initialize(next(self.ts).internal, 1) # make sure we can cope with unitialized account and container broker.account = broker.container = None self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) self.assertEqual('root_a', broker.account) # sanity check self.assertEqual('root_c', broker.container) # sanity check # we don't expect root containers to have this sysmeta set but if it is # the broker should still behave like a root container metadata = { 'X-Container-Sysmeta-Shard-Root': ('root_a/root_c', next(self.ts).internal)} broker = ContainerBroker( db_path, account='root_a', container='root_c') broker.update_metadata(metadata) broker.account = broker.container = None self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) # if root is marked deleted, it still considers itself to be a root broker.delete_db(next(self.ts).internal) self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) # check the values are not just being cached broker = ContainerBroker(db_path) self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) # check a shard container db_path = os.path.join(tempdir, 'shard_container.db') broker = ContainerBroker( db_path, account='.shards_root_a', container='c_shard') broker.initialize(next(self.ts).internal, 1) # now the metadata is significant... metadata = { 'X-Container-Sysmeta-Shard-Root': ('root_a/root_c', next(self.ts).internal)} broker.update_metadata(metadata) broker.account = broker.container = None broker._root_account = broker._root_container = None self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertFalse(broker.is_root_container()) # check validation def check_validation(root_value): metadata = { 'X-Container-Sysmeta-Shard-Root': (root_value, next(self.ts).internal)} broker.update_metadata(metadata) broker.account = broker.container = None broker._root_account = broker._root_container = None with self.assertRaises(ValueError) as cm: broker.root_account self.assertIn('Expected X-Container-Sysmeta-Shard-Root', str(cm.exception)) with self.assertRaises(ValueError): broker.root_container check_validation('root_a') check_validation('/root_a') check_validation('/root_a/root_c') check_validation('/root_a/root_c/blah') check_validation('/') @with_tempdir def test_root_account_container_path(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker( db_path, account='root_a', container='root_c') broker.initialize(next(self.ts).internal, 1) # make sure we can cope with unitialized account and container broker.account = broker.container = None self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) self.assertEqual('root_a', broker.account) # sanity check self.assertEqual('root_c', broker.container) # sanity check # we don't expect root containers to have this sysmeta set but if it is # the broker should still behave like a root container metadata = { 'X-Container-Sysmeta-Shard-Quoted-Root': ('root_a/root_c', next(self.ts).internal)} broker = ContainerBroker( db_path, account='root_a', container='root_c') broker.update_metadata(metadata) broker.account = broker.container = None self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) # if root is marked deleted, it still considers itself to be a root broker.delete_db(next(self.ts).internal) self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) # check the values are not just being cached broker = ContainerBroker(db_path) self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertTrue(broker.is_root_container()) # check a shard container db_path = os.path.join(tempdir, 'shard_container.db') broker = ContainerBroker( db_path, account='.shards_root_a', container='c_shard') broker.initialize(next(self.ts).internal, 1) # now the metadata is significant... metadata = { 'X-Container-Sysmeta-Shard-Quoted-Root': ('root_a/root_c', next(self.ts).internal)} broker.update_metadata(metadata) broker.account = broker.container = None broker._root_account = broker._root_container = None self.assertEqual('root_a', broker.root_account) self.assertEqual('root_c', broker.root_container) self.assertEqual('root_a/root_c', broker.root_path) self.assertFalse(broker.is_root_container()) # check validation def check_validation(root_value): metadata = { 'X-Container-Sysmeta-Shard-Quoted-Root': (root_value, next(self.ts).internal)} broker.update_metadata(metadata) broker.account = broker.container = None broker._root_account = broker._root_container = None with self.assertRaises(ValueError) as cm: broker.root_account self.assertIn('Expected X-Container-Sysmeta-Shard-Quoted-Root', str(cm.exception)) with self.assertRaises(ValueError): broker.root_container check_validation('root_a') check_validation('/root_a') check_validation('/root_a/root_c') check_validation('/root_a/root_c/blah') check_validation('/') def test_resolve_shard_range_states(self): self.assertIsNone(ContainerBroker.resolve_shard_range_states(None)) self.assertIsNone(ContainerBroker.resolve_shard_range_states([])) for state_num, state_name in ShardRange.STATES.items(): self.assertEqual({state_num}, ContainerBroker.resolve_shard_range_states( [state_name])) self.assertEqual({state_num}, ContainerBroker.resolve_shard_range_states( [state_num])) self.assertEqual(set(ShardRange.STATES), ContainerBroker.resolve_shard_range_states( ShardRange.STATES_BY_NAME)) self.assertEqual( set(ShardRange.STATES), ContainerBroker.resolve_shard_range_states(ShardRange.STATES)) # check aliases self.assertEqual( {ShardRange.CLEAVED, ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHRINKING}, ContainerBroker.resolve_shard_range_states(['listing'])) self.assertEqual( {ShardRange.CLEAVED, ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHRINKING}, ContainerBroker.resolve_shard_range_states(['listing', 'active'])) self.assertEqual( {ShardRange.CLEAVED, ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHRINKING, ShardRange.CREATED}, ContainerBroker.resolve_shard_range_states(['listing', 'created'])) self.assertEqual( {ShardRange.CREATED, ShardRange.CLEAVED, ShardRange.ACTIVE, ShardRange.SHARDING}, ContainerBroker.resolve_shard_range_states(['updating'])) self.assertEqual( {ShardRange.CREATED, ShardRange.CLEAVED, ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHRINKING}, ContainerBroker.resolve_shard_range_states( ['updating', 'listing'])) self.assertEqual( {ShardRange.CREATED, ShardRange.CLEAVED, ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHARDED, ShardRange.SHRINKING, ShardRange.SHRUNK}, ContainerBroker.resolve_shard_range_states(['auditing'])) def check_bad_value(value): with self.assertRaises(ValueError) as cm: ContainerBroker.resolve_shard_range_states(value) self.assertIn('Invalid state', str(cm.exception)) check_bad_value(['bad_state', 'active']) check_bad_value(['']) check_bad_value('active') @with_tempdir def test_get_shard_ranges(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) # no rows self.assertFalse(broker.get_shard_ranges()) # check that a default own shard range is not generated self.assertFalse(broker.get_shard_ranges(include_own=True)) # merge row for own shard range own_shard_range = ShardRange(broker.path, next(self.ts), 'l', 'u', state=ShardRange.SHARDING) broker.merge_shard_ranges([own_shard_range]) self.assertFalse(broker.get_shard_ranges()) self.assertFalse(broker.get_shard_ranges(include_own=False)) actual = broker.get_shard_ranges(include_own=True) self.assertEqual([dict(sr) for sr in [own_shard_range]], [dict(sr) for sr in actual]) # merge rows for other shard ranges shard_ranges = [ ShardRange('.a/c0', next(self.ts), 'a', 'c'), ShardRange('.a/c1', next(self.ts), 'c', 'd'), ShardRange('.a/c2', next(self.ts), 'd', 'f', state=ShardRange.ACTIVE), ShardRange('.a/c3', next(self.ts), 'e', 'f', deleted=1, state=ShardRange.SHARDED,), ShardRange('.a/c4', next(self.ts), 'f', 'h', state=ShardRange.CREATED), ShardRange('.a/c5', next(self.ts), 'h', 'j', deleted=1) ] broker.merge_shard_ranges(shard_ranges) actual = broker.get_shard_ranges() undeleted = shard_ranges[:3] + shard_ranges[4:5] self.assertEqual([dict(sr) for sr in undeleted], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(include_deleted=True) self.assertEqual([dict(sr) for sr in shard_ranges], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(reverse=True) self.assertEqual([dict(sr) for sr in reversed(undeleted)], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(marker='c', end_marker='e') self.assertEqual([dict(sr) for sr in shard_ranges[1:3]], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(marker='c', end_marker='e', states=ShardRange.ACTIVE) self.assertEqual([dict(sr) for sr in shard_ranges[2:3]], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(marker='e', end_marker='e') self.assertFalse([dict(sr) for sr in actual]) orig_execute = GreenDBConnection.execute mock_call_args = [] def mock_execute(*args, **kwargs): mock_call_args.append(args) return orig_execute(*args, **kwargs) with mock.patch('swift.common.db.GreenDBConnection.execute', mock_execute): actual = broker.get_shard_ranges(includes='f') self.assertEqual([dict(sr) for sr in shard_ranges[2:3]], [dict(sr) for sr in actual]) self.assertEqual(1, len(mock_call_args)) # verify that includes keyword plumbs through to an SQL condition self.assertIn("WHERE deleted=0 AND name != ? AND lower < ? AND " "(upper = '' OR upper >= ?)", mock_call_args[0][1]) actual = broker.get_shard_ranges(includes='i') self.assertFalse(actual) actual = broker.get_shard_ranges( states=[ShardRange.CREATED, ShardRange.ACTIVE]) self.assertEqual( [dict(sr) for sr in [shard_ranges[2], shard_ranges[4]]], [dict(sr) for sr in actual]) # fill gaps filler = own_shard_range.copy() filler.lower = 'h' actual = broker.get_shard_ranges(fill_gaps=True) self.assertEqual([dict(sr) for sr in undeleted + [filler]], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(fill_gaps=True, marker='a') self.assertEqual([dict(sr) for sr in undeleted + [filler]], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(fill_gaps=True, end_marker='z') self.assertEqual([dict(sr) for sr in undeleted + [filler]], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(fill_gaps=True, end_marker='k') filler.upper = 'k' self.assertEqual([dict(sr) for sr in undeleted + [filler]], [dict(sr) for sr in actual]) # no filler needed... actual = broker.get_shard_ranges(fill_gaps=True, end_marker='h') self.assertEqual([dict(sr) for sr in undeleted], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(fill_gaps=True, end_marker='a') self.assertEqual([], [dict(sr) for sr in actual]) # get everything actual = broker.get_shard_ranges(include_own=True) self.assertEqual([dict(sr) for sr in undeleted + [own_shard_range]], [dict(sr) for sr in actual]) # get just own range actual = broker.get_shard_ranges(include_own=True, exclude_others=True) self.assertEqual([dict(sr) for sr in [own_shard_range]], [dict(sr) for sr in actual]) # if you ask for nothing you'll get nothing actual = broker.get_shard_ranges( include_own=False, exclude_others=True) self.assertFalse(actual) @with_tempdir def test_get_shard_ranges_includes(self, tempdir): ts = next(self.ts) start = ShardRange('a/-a', ts, '', 'a') atof = ShardRange('a/a-f', ts, 'a', 'f') ftol = ShardRange('a/f-l', ts, 'f', 'l') ltor = ShardRange('a/l-r', ts, 'l', 'r') rtoz = ShardRange('a/r-z', ts, 'r', 'z') end = ShardRange('a/z-', ts, 'z', '') ranges = [start, atof, ftol, ltor, rtoz, end] db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) broker.merge_shard_ranges(ranges) actual = broker.get_shard_ranges(includes='') self.assertEqual(actual, []) actual = broker.get_shard_ranges(includes=' ') self.assertEqual(actual, [start]) actual = broker.get_shard_ranges(includes='b') self.assertEqual(actual, [atof]) actual = broker.get_shard_ranges(includes='f') self.assertEqual(actual, [atof]) actual = broker.get_shard_ranges(includes='f\x00') self.assertEqual(actual, [ftol]) actual = broker.get_shard_ranges(includes='x') self.assertEqual(actual, [rtoz]) actual = broker.get_shard_ranges(includes='r') self.assertEqual(actual, [ltor]) actual = broker.get_shard_ranges(includes='}') self.assertEqual(actual, [end]) # add some overlapping sub-shards ftoh = ShardRange('a/f-h', ts, 'f', 'h') htok = ShardRange('a/h-k', ts, 'h', 'k') broker.merge_shard_ranges([ftoh, htok]) actual = broker.get_shard_ranges(includes='g') self.assertEqual(actual, [ftoh]) actual = broker.get_shard_ranges(includes='h') self.assertEqual(actual, [ftoh]) actual = broker.get_shard_ranges(includes='k') self.assertEqual(actual, [htok]) actual = broker.get_shard_ranges(includes='l') self.assertEqual(actual, [ftol]) actual = broker.get_shard_ranges(includes='m') self.assertEqual(actual, [ltor]) # remove l-r from shard ranges and try and find a shard range for an # item in that range. ltor.set_deleted(next(self.ts)) broker.merge_shard_ranges([ltor]) actual = broker.get_shard_ranges(includes='p') self.assertEqual(actual, []) @with_tempdir def test_overlap_shard_range_order(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) epoch0 = next(self.ts) epoch1 = next(self.ts) shard_ranges = [ ShardRange('.shard_a/shard_%d-%d' % (e, s), epoch, l, u, state=ShardRange.ACTIVE) for s, (l, u) in enumerate(zip(string.ascii_letters[:7], string.ascii_letters[1:])) for e, epoch in enumerate((epoch0, epoch1)) ] random.shuffle(shard_ranges) for sr in shard_ranges: broker.merge_shard_ranges([sr]) expected = [ '.shard_a/shard_0-0', '.shard_a/shard_1-0', '.shard_a/shard_0-1', '.shard_a/shard_1-1', '.shard_a/shard_0-2', '.shard_a/shard_1-2', '.shard_a/shard_0-3', '.shard_a/shard_1-3', '.shard_a/shard_0-4', '.shard_a/shard_1-4', '.shard_a/shard_0-5', '.shard_a/shard_1-5', '.shard_a/shard_0-6', '.shard_a/shard_1-6', ] self.assertEqual(expected, [ sr.name for sr in broker.get_shard_ranges()]) @with_tempdir def test_get_shard_ranges_with_sharding_overlaps(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) shard_ranges = [ ShardRange('.shards_a/c0', next(self.ts), 'a', 'd', state=ShardRange.ACTIVE), ShardRange('.shards_a/c1_0', next(self.ts), 'd', 'g', state=ShardRange.CLEAVED), ShardRange('.shards_a/c1_1', next(self.ts), 'g', 'j', state=ShardRange.CLEAVED), ShardRange('.shards_a/c1_2', next(self.ts), 'j', 'm', state=ShardRange.CREATED), ShardRange('.shards_a/c1', next(self.ts), 'd', 'm', state=ShardRange.SHARDING), ShardRange('.shards_a/c2', next(self.ts), 'm', '', state=ShardRange.ACTIVE), ] broker.merge_shard_ranges( random.sample(shard_ranges, len(shard_ranges))) actual = broker.get_shard_ranges() self.assertEqual([dict(sr) for sr in shard_ranges], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(states=SHARD_LISTING_STATES) self.assertEqual( [dict(sr) for sr in shard_ranges[:3] + shard_ranges[4:]], [dict(sr) for sr in actual]) orig_execute = GreenDBConnection.execute mock_call_args = [] def mock_execute(*args, **kwargs): mock_call_args.append(args) return orig_execute(*args, **kwargs) with mock.patch('swift.common.db.GreenDBConnection.execute', mock_execute): actual = broker.get_shard_ranges(states=SHARD_UPDATE_STATES, includes='e') self.assertEqual([dict(shard_ranges[1])], [dict(sr) for sr in actual]) self.assertEqual(1, len(mock_call_args)) # verify that includes keyword plumbs through to an SQL condition self.assertIn("WHERE deleted=0 AND state in (?,?,?,?) AND name != ? " "AND lower < ? AND (upper = '' OR upper >= ?)", mock_call_args[0][1]) actual = broker.get_shard_ranges(states=SHARD_UPDATE_STATES, includes='j') self.assertEqual([shard_ranges[2]], actual) actual = broker.get_shard_ranges(states=SHARD_UPDATE_STATES, includes='k') self.assertEqual([shard_ranges[3]], actual) @with_tempdir def test_get_shard_ranges_with_shrinking_overlaps(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) shard_ranges = [ ShardRange('.shards_a/c0', next(self.ts), 'a', 'k', state=ShardRange.ACTIVE), ShardRange('.shards_a/c1', next(self.ts), 'k', 'm', state=ShardRange.SHRINKING), ShardRange('.shards_a/c2', next(self.ts), 'k', 't', state=ShardRange.ACTIVE), ShardRange('.shards_a/c3', next(self.ts), 't', '', state=ShardRange.ACTIVE), ] broker.merge_shard_ranges( random.sample(shard_ranges, len(shard_ranges))) actual = broker.get_shard_ranges() self.assertEqual([dict(sr) for sr in shard_ranges], [dict(sr) for sr in actual]) actual = broker.get_shard_ranges(states=SHARD_UPDATE_STATES, includes='l') self.assertEqual([shard_ranges[2]], actual) @with_tempdir def test_get_own_shard_range(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker( db_path, account='.shards_a', container='shard_c') broker.initialize(next(self.ts).internal, 0) # no row for own shard range - expect a default own shard range # covering the entire namespace default now = Timestamp.now() own_sr = ShardRange(broker.path, now, '', '', 0, 0, now, state=ShardRange.ACTIVE) with mock.patch('swift.container.backend.Timestamp.now', return_value=now): actual = broker.get_own_shard_range() self.assertEqual(dict(own_sr), dict(actual)) actual = broker.get_own_shard_range(no_default=True) self.assertIsNone(actual) # row for own shard range and others ts_1 = next(self.ts) own_sr = ShardRange(broker.path, ts_1, 'l', 'u') broker.merge_shard_ranges( [own_sr, ShardRange('.a/c1', next(self.ts), 'b', 'c'), ShardRange('.a/c2', next(self.ts), 'c', 'd')]) actual = broker.get_own_shard_range() self.assertEqual(dict(own_sr), dict(actual)) # check stats are not automatically updated broker.put_object( 'o1', next(self.ts).internal, 100, 'text/plain', 'etag1') broker.put_object( 'o2', next(self.ts).internal, 99, 'text/plain', 'etag2') actual = broker.get_own_shard_range() self.assertEqual(dict(own_sr), dict(actual)) # check non-zero stats returned own_sr.update_meta(object_count=2, bytes_used=199, meta_timestamp=next(self.ts)) broker.merge_shard_ranges(own_sr) actual = broker.get_own_shard_range() self.assertEqual(dict(own_sr), dict(actual)) # still returned when deleted own_sr.update_meta(object_count=0, bytes_used=0, meta_timestamp=next(self.ts)) delete_ts = next(self.ts) own_sr.set_deleted(timestamp=delete_ts) broker.merge_shard_ranges(own_sr) actual = broker.get_own_shard_range() self.assertEqual(dict(own_sr), dict(actual)) # still in table after reclaim_age broker.reclaim(next(self.ts).internal, next(self.ts).internal) actual = broker.get_own_shard_range() self.assertEqual(dict(own_sr), dict(actual)) # entire namespace ts_2 = next(self.ts) own_sr = ShardRange(broker.path, ts_2, '', '') broker.merge_shard_ranges([own_sr]) actual = broker.get_own_shard_range() self.assertEqual(dict(own_sr), dict(actual)) @with_tempdir def test_enable_sharding(self, tempdir): db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker( db_path, account='.shards_a', container='shard_c') broker.initialize(next(self.ts).internal, 0) epoch = next(self.ts) broker.enable_sharding(epoch) own_sr = broker.get_own_shard_range(no_default=True) self.assertEqual(epoch, own_sr.epoch) self.assertEqual(epoch, own_sr.state_timestamp) self.assertEqual(ShardRange.SHARDING, own_sr.state) @with_tempdir def test_get_shard_usage(self, tempdir): shard_range_by_state = dict( (state, ShardRange('.shards_a/c_%s' % state, next(self.ts), str(state), str(state + 1), 2 * state, 2 * state + 1, 2, state=state)) for state in ShardRange.STATES) def make_broker(a, c): db_path = os.path.join(tempdir, '%s.db' % uuid4()) broker = ContainerBroker(db_path, account=a, container=c) broker.initialize(next(self.ts).internal, 0) broker.set_sharding_sysmeta('Root', 'a/c') broker.merge_shard_ranges(list(shard_range_by_state.values())) return broker # make broker appear to be a root container broker = make_broker('a', 'c') self.assertTrue(broker.is_root_container()) included_states = (ShardRange.ACTIVE, ShardRange.SHARDING, ShardRange.SHRINKING) included = [shard_range_by_state[state] for state in included_states] expected = { 'object_count': sum([sr.object_count for sr in included]), 'bytes_used': sum([sr.bytes_used for sr in included]) } self.assertEqual(expected, broker.get_shard_usage()) @with_tempdir def _check_find_shard_ranges(self, c_lower, c_upper, tempdir): ts_now = Timestamp.now() container_name = 'test_container' def do_test(expected_bounds, expected_last_found, shard_size, limit, start_index=0, existing=None, minimum_size=1): # expected_bounds is a list of tuples (lower, upper, object_count) # build expected shard ranges expected_shard_ranges = [ dict(lower=lower, upper=upper, index=index, object_count=object_count) for index, (lower, upper, object_count) in enumerate(expected_bounds, start_index)] with mock.patch('swift.common.utils.time.time', return_value=float(ts_now.normal)): ranges, last_found = broker.find_shard_ranges( shard_size, limit=limit, existing_ranges=existing, minimum_shard_size=minimum_size) self.assertEqual(expected_shard_ranges, ranges) self.assertEqual(expected_last_found, last_found) db_path = os.path.join(tempdir, 'test_container.db') broker = ContainerBroker( db_path, account='a', container=container_name) # shard size > object count, no objects broker.initialize(next(self.ts).internal, 0) ts = next(self.ts) if c_lower or c_upper: # testing a shard, so set its own shard range own_shard_range = ShardRange(broker.path, ts, c_lower, c_upper) broker.merge_shard_ranges([own_shard_range]) self.assertEqual(([], False), broker.find_shard_ranges(10)) for i in range(10): broker.put_object( 'obj%02d' % i, next(self.ts).internal, 0, 'text/plain', 'etag') expected_bounds = [(c_lower, 'obj04', 5), ('obj04', c_upper, 5)] do_test(expected_bounds, True, shard_size=5, limit=None) expected = [(c_lower, 'obj06', 7), ('obj06', c_upper, 3)] do_test(expected, True, shard_size=7, limit=None) expected = [(c_lower, 'obj08', 9), ('obj08', c_upper, 1)] do_test(expected, True, shard_size=9, limit=None) # shard size >= object count do_test([], False, shard_size=10, limit=None) do_test([], False, shard_size=11, limit=None) # check use of limit do_test([], False, shard_size=4, limit=0) expected = [(c_lower, 'obj03', 4)] do_test(expected, False, shard_size=4, limit=1) expected = [(c_lower, 'obj03', 4), ('obj03', 'obj07', 4)] do_test(expected, False, shard_size=4, limit=2) expected = [(c_lower, 'obj03', 4), ('obj03', 'obj07', 4), ('obj07', c_upper, 2)] do_test(expected, True, shard_size=4, limit=3) do_test(expected, True, shard_size=4, limit=4) do_test(expected, True, shard_size=4, limit=-1) # check use of minimum_shard_size expected = [(c_lower, 'obj03', 4), ('obj03', 'obj07', 4), ('obj07', c_upper, 2)] do_test(expected, True, shard_size=4, limit=None, minimum_size=2) # crazy values ignored... do_test(expected, True, shard_size=4, limit=None, minimum_size=0) do_test(expected, True, shard_size=4, limit=None, minimum_size=-1) # minimum_size > potential final shard expected = [(c_lower, 'obj03', 4), ('obj03', c_upper, 6)] do_test(expected, True, shard_size=4, limit=None, minimum_size=3) # extended shard size >= object_count do_test([], False, shard_size=6, limit=None, minimum_size=5) do_test([], False, shard_size=6, limit=None, minimum_size=500) # increase object count to 11 broker.put_object( 'obj10', next(self.ts).internal, 0, 'text/plain', 'etag') expected = [(c_lower, 'obj03', 4), ('obj03', 'obj07', 4), ('obj07', c_upper, 3)] do_test(expected, True, shard_size=4, limit=None) expected = [(c_lower, 'obj09', 10), ('obj09', c_upper, 1)] do_test(expected, True, shard_size=10, limit=None) do_test([], False, shard_size=11, limit=None) # now pass in a pre-existing shard range existing = [ShardRange( '.shards_a/srange-0', Timestamp.now(), '', 'obj03', object_count=4, state=ShardRange.FOUND)] expected = [('obj03', 'obj07', 4), ('obj07', c_upper, 3)] do_test(expected, True, shard_size=4, limit=None, start_index=1, existing=existing) expected = [('obj03', 'obj07', 4)] do_test(expected, False, shard_size=4, limit=1, start_index=1, existing=existing) # using increased shard size should not distort estimation of progress expected = [('obj03', 'obj09', 6), ('obj09', c_upper, 1)] do_test(expected, True, shard_size=6, limit=None, start_index=1, existing=existing) # add another existing... existing.append(ShardRange( '.shards_a/srange-1', Timestamp.now(), '', 'obj07', object_count=4, state=ShardRange.FOUND)) expected = [('obj07', c_upper, 3)] do_test(expected, True, shard_size=10, limit=None, start_index=2, existing=existing) # an existing shard range not in FOUND state should not distort # estimation of progress, but may cause final range object count to # default to shard_size existing[-1].state = ShardRange.CREATED existing[-1].object_count = 10 # there's only 3 objects left to scan but progress cannot be reliably # calculated, so final shard range has object count of 2 expected = [('obj07', 'obj09', 2), ('obj09', c_upper, 2)] do_test(expected, True, shard_size=2, limit=None, start_index=2, existing=existing) # add last shard range so there's none left to find existing.append(ShardRange( '.shards_a/srange-2', Timestamp.now(), 'obj07', c_upper, object_count=4, state=ShardRange.FOUND)) do_test([], True, shard_size=4, limit=None, existing=existing) def test_find_shard_ranges(self): self._check_find_shard_ranges('', '') self._check_find_shard_ranges('', 'upper') self._check_find_shard_ranges('lower', '') self._check_find_shard_ranges('lower', 'upper') @with_tempdir def test_find_shard_ranges_with_misplaced_objects(self, tempdir): # verify that misplaced objects outside of a shard's range do not # influence choice of shard ranges (but do distort the object counts) ts_now = Timestamp.now() container_name = 'test_container' db_path = os.path.join(tempdir, 'test_container.db') broker = ContainerBroker( db_path, account='a', container=container_name) # shard size > object count, no objects broker.initialize(next(self.ts).internal, 0) ts = next(self.ts) own_shard_range = ShardRange(broker.path, ts, 'l', 'u') broker.merge_shard_ranges([own_shard_range]) self.assertEqual(([], False), broker.find_shard_ranges(10)) for name in ('a-misplaced', 'm', 'n', 'p', 'q', 'r', 'z-misplaced'): broker.put_object( name, next(self.ts).internal, 0, 'text/plain', 'etag') expected_bounds = ( ('l', 'n', 2), # contains m, n ('n', 'q', 2), # contains p, q ('q', 'u', 3) # contains r; object count distorted by 2 misplaced ) expected_shard_ranges = [ dict(lower=lower, upper=upper, index=index, object_count=object_count) for index, (lower, upper, object_count) in enumerate(expected_bounds)] with mock.patch('swift.common.utils.time.time', return_value=float(ts_now.normal)): actual_shard_ranges, last_found = broker.find_shard_ranges(2, -1) self.assertEqual(expected_shard_ranges, actual_shard_ranges) @with_tempdir def test_find_shard_ranges_errors(self, tempdir): db_path = os.path.join(tempdir, 'test_container.db') broker = ContainerBroker(db_path, account='a', container='c', logger=debug_logger()) broker.initialize(next(self.ts).internal, 0) for i in range(2): broker.put_object( 'obj%d' % i, next(self.ts).internal, 0, 'text/plain', 'etag') klass = 'swift.container.backend.ContainerBroker' with mock.patch(klass + '._get_next_shard_range_upper', side_effect=LockTimeout()): ranges, last_found = broker.find_shard_ranges(1) self.assertFalse(ranges) self.assertFalse(last_found) lines = broker.logger.get_lines_for_level('error') self.assertIn('Problem finding shard upper', lines[0]) self.assertFalse(lines[1:]) broker.logger.clear() with mock.patch(klass + '._get_next_shard_range_upper', side_effect=sqlite3.OperationalError()): ranges, last_found = broker.find_shard_ranges(1) self.assertFalse(last_found) self.assertFalse(ranges) lines = broker.logger.get_lines_for_level('error') self.assertIn('Problem finding shard upper', lines[0]) self.assertFalse(lines[1:]) @with_tempdir def test_set_db_states(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) # load up the broker with some objects objects = [{'name': 'obj_%d' % i, 'created_at': next(self.ts).normal, 'content_type': 'text/plain', 'etag': 'etag_%d' % i, 'size': 1024 * i, 'deleted': 0, 'storage_policy_index': 0, } for i in range(1, 6)] # merge_items mutates items broker.merge_items([dict(obj) for obj in objects]) original_info = broker.get_info() # Add some metadata meta = { 'X-Container-Meta-Color': ['Blue', next(self.ts).normal], 'X-Container-Meta-Cleared': ['', next(self.ts).normal], 'X-Container-Sysmeta-Shape': ['Circle', next(self.ts).normal], } broker.update_metadata(meta) # Add some syncs incoming_sync = {'remote_id': 'incoming_123', 'sync_point': 1} outgoing_sync = {'remote_id': 'outgoing_123', 'sync_point': 2} broker.merge_syncs([outgoing_sync], incoming=False) broker.merge_syncs([incoming_sync], incoming=True) # Add some ShardRanges shard_ranges = [ShardRange( name='.shards_a/shard_range_%s' % i, timestamp=next(self.ts), lower='obj_%d' % i, upper='obj_%d' % (i + 2), object_count=len(objects[i:i + 2]), bytes_used=sum(obj['size'] for obj in objects[i:i + 2]), meta_timestamp=next(self.ts)) for i in range(0, 6, 2)] deleted_range = ShardRange('.shards_a/shard_range_z', next(self.ts), 'z', '', state=ShardRange.SHARDED, deleted=1) own_sr = ShardRange(name='a/c', timestamp=next(self.ts), state=ShardRange.ACTIVE) broker.merge_shard_ranges([own_sr] + shard_ranges + [deleted_range]) ts_epoch = next(self.ts) new_db_path = os.path.join(tempdir, 'containers', 'part', 'suffix', 'hash', 'container_%s.db' % ts_epoch.normal) def check_broker_properties(broker): # these broker properties should remain unchanged as state changes self.assertEqual(broker.get_max_row(), 5) all_metadata = broker.metadata original_meta = dict((k, all_metadata[k]) for k in meta) self.assertEqual(original_meta, meta) self.assertEqual(broker.get_syncs(True)[0], incoming_sync) self.assertEqual(broker.get_syncs(False)[0], outgoing_sync) self.assertEqual(shard_ranges + [own_sr, deleted_range], broker.get_shard_ranges(include_own=True, include_deleted=True)) def check_broker_info(actual_info): for key in ('db_state', 'id', 'hash'): actual_info.pop(key, None) original_info.pop(key, None) self.assertEqual(original_info, actual_info) def check_unsharded_state(broker): # these are expected properties in unsharded state self.assertEqual(len(broker.get_brokers()), 1) self.assertEqual(broker.get_db_state(), UNSHARDED) self.assertTrue(os.path.exists(db_path)) self.assertFalse(os.path.exists(new_db_path)) self.assertEqual(objects, broker.get_objects()) # Sanity checks check_broker_properties(broker) check_unsharded_state(broker) check_broker_info(broker.get_info()) # first test that moving from UNSHARDED to SHARDED doesn't work self.assertFalse(broker.set_sharded_state()) # check nothing changed check_broker_properties(broker) check_broker_info(broker.get_info()) check_unsharded_state(broker) # cannot go to SHARDING without an epoch set self.assertFalse(broker.set_sharding_state()) # now set sharding epoch and make sure everything moves. broker.enable_sharding(ts_epoch) self.assertTrue(broker.set_sharding_state()) check_broker_properties(broker) check_broker_info(broker.get_info()) def check_sharding_state(broker): self.assertEqual(len(broker.get_brokers()), 2) self.assertEqual(broker.get_db_state(), SHARDING) self.assertTrue(os.path.exists(db_path)) self.assertTrue(os.path.exists(new_db_path)) self.assertEqual([], broker.get_objects()) self.assertEqual(objects, broker.get_brokers()[0].get_objects()) self.assertEqual(broker.get_reconciler_sync(), -1) info = broker.get_info() if info.get('x_container_sync_point1'): self.assertEqual(info['x_container_sync_point1'], -1) self.assertEqual(info['x_container_sync_point2'], -1) check_sharding_state(broker) # to confirm we're definitely looking at the shard db broker2 = ContainerBroker(new_db_path) check_broker_properties(broker2) check_broker_info(broker2.get_info()) self.assertEqual([], broker2.get_objects()) # Try to set sharding state again self.assertFalse(broker.set_sharding_state()) # check nothing changed check_broker_properties(broker) check_broker_info(broker.get_info()) check_sharding_state(broker) # Now move to the final state - update shard ranges' state broker.merge_shard_ranges( [dict(sr, state=ShardRange.ACTIVE, state_timestamp=next(self.ts).internal) for sr in shard_ranges]) # pretend all ranges have been cleaved self.assertTrue(broker.set_sharded_state()) check_broker_properties(broker) check_broker_info(broker.get_info()) def check_sharded_state(broker): self.assertEqual(broker.get_db_state(), SHARDED) self.assertEqual(len(broker.get_brokers()), 1) self.assertFalse(os.path.exists(db_path)) self.assertTrue(os.path.exists(new_db_path)) self.assertEqual([], broker.get_objects()) check_sharded_state(broker) # Try to set sharded state again self.assertFalse(broker.set_sharded_state()) # check nothing changed check_broker_properties(broker) check_broker_info(broker.get_info()) check_sharded_state(broker) # delete the container broker.delete_db(next(self.ts).internal) # but it is not considered deleted while shards have content self.assertFalse(broker.is_deleted()) check_sharded_state(broker) # empty the shard ranges empty_shard_ranges = [sr.copy(object_count=0, bytes_used=0, meta_timestamp=next(self.ts)) for sr in shard_ranges] broker.merge_shard_ranges(empty_shard_ranges) # and now it is deleted self.assertTrue(broker.is_deleted()) check_sharded_state(broker) def do_revive_shard_delete(shard_ranges): # delete all shard ranges deleted_shard_ranges = [sr.copy(timestamp=next(self.ts), deleted=1) for sr in shard_ranges] broker.merge_shard_ranges(deleted_shard_ranges) self.assertEqual(COLLAPSED, broker.get_db_state()) # add new shard ranges and go to sharding state - need to force # broker time to be after the delete time in order to write new # sysmeta broker.enable_sharding(next(self.ts)) shard_ranges = [sr.copy(timestamp=next(self.ts)) for sr in shard_ranges] broker.merge_shard_ranges(shard_ranges) with mock.patch('swift.common.db.time.time', lambda: float(next(self.ts))): self.assertTrue(broker.set_sharding_state()) self.assertEqual(SHARDING, broker.get_db_state()) # go to sharded self.assertTrue( broker.set_sharded_state()) self.assertEqual(SHARDED, broker.get_db_state()) # delete again broker.delete_db(next(self.ts).internal) self.assertTrue(broker.is_deleted()) self.assertEqual(SHARDED, broker.get_db_state()) do_revive_shard_delete(shard_ranges) do_revive_shard_delete(shard_ranges) @with_tempdir def test_set_sharding_state(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c', logger=debug_logger()) broker.initialize(next(self.ts).internal, 0) broker.merge_items([{'name': 'obj_%d' % i, 'created_at': next(self.ts).normal, 'content_type': 'text/plain', 'etag': 'etag_%d' % i, 'size': 1024 * i, 'deleted': 0, 'storage_policy_index': 0, } for i in range(1, 6)]) broker.set_x_container_sync_points(1, 2) broker.update_reconciler_sync(3) self.assertEqual(3, broker.get_reconciler_sync()) broker.reported(next(self.ts).internal, next(self.ts).internal, next(self.ts).internal, next(self.ts).internal) epoch = next(self.ts) broker.enable_sharding(epoch) self.assertEqual(UNSHARDED, broker.get_db_state()) self.assertFalse(broker.is_deleted()) retiring_info = broker.get_info() self.assertEqual(1, len(broker.db_files)) self.assertTrue(broker.set_sharding_state()) broker = ContainerBroker(db_path, account='a', container='c', logger=debug_logger()) self.assertEqual(SHARDING, broker.get_db_state()) fresh_info = broker.get_info() for key in ('reported_put_timestamp', 'reported_delete_timestamp'): retiring_info.pop(key) self.assertEqual('0', fresh_info.pop(key), key) for key in ('reported_object_count', 'reported_bytes_used'): retiring_info.pop(key) self.assertEqual(0, fresh_info.pop(key), key) self.assertNotEqual(retiring_info.pop('id'), fresh_info.pop('id')) self.assertNotEqual(retiring_info.pop('hash'), fresh_info.pop('hash')) self.assertNotEqual(retiring_info.pop('x_container_sync_point1'), fresh_info.pop('x_container_sync_point1')) self.assertNotEqual(retiring_info.pop('x_container_sync_point2'), fresh_info.pop('x_container_sync_point2')) self.assertEqual(-1, broker.get_reconciler_sync()) self.assertEqual('unsharded', retiring_info.pop('db_state')) self.assertEqual('sharding', fresh_info.pop('db_state')) self.assertEqual(retiring_info, fresh_info) self.assertFalse(broker.is_deleted()) self.assertEqual(2, len(broker.db_files)) self.assertEqual(db_path, broker.db_files[0]) fresh_db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container_%s.db' % epoch.internal) self.assertEqual(fresh_db_path, broker.db_files[1]) @with_tempdir def test_set_sharding_state_deleted(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c', logger=debug_logger()) broker.initialize(next(self.ts).internal, 0) broker.set_x_container_sync_points(1, 2) broker.update_reconciler_sync(3) self.assertEqual(3, broker.get_reconciler_sync()) broker.reported(next(self.ts).internal, next(self.ts).internal, next(self.ts).internal, next(self.ts).internal) epoch = next(self.ts) broker.enable_sharding(epoch) self.assertEqual(UNSHARDED, broker.get_db_state()) broker.delete_db(next(self.ts).internal) self.assertTrue(broker.is_deleted()) retiring_info = broker.get_info() self.assertEqual("DELETED", retiring_info['status']) self.assertEqual(1, len(broker.db_files)) self.assertTrue(broker.set_sharding_state()) broker = ContainerBroker(db_path, account='a', container='c', logger=debug_logger()) self.assertEqual(SHARDING, broker.get_db_state()) fresh_info = broker.get_info() for key in ('reported_put_timestamp', 'reported_delete_timestamp'): retiring_info.pop(key) self.assertEqual('0', fresh_info.pop(key), key) for key in ('reported_object_count', 'reported_bytes_used'): retiring_info.pop(key) self.assertEqual(0, fresh_info.pop(key), key) self.assertNotEqual(retiring_info.pop('id'), fresh_info.pop('id')) self.assertNotEqual(retiring_info.pop('x_container_sync_point1'), fresh_info.pop('x_container_sync_point1')) self.assertNotEqual(retiring_info.pop('x_container_sync_point2'), fresh_info.pop('x_container_sync_point2')) self.assertEqual(-1, broker.get_reconciler_sync()) self.assertEqual('unsharded', retiring_info.pop('db_state')) self.assertEqual('sharding', fresh_info.pop('db_state')) self.assertEqual(retiring_info, fresh_info) self.assertTrue(broker.is_deleted()) self.assertEqual(2, len(broker.db_files)) self.assertEqual(db_path, broker.db_files[0]) fresh_db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container_%s.db' % epoch.internal) self.assertEqual(fresh_db_path, broker.db_files[1]) @with_tempdir def test_set_sharding_state_errors(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c', logger=debug_logger()) broker.initialize(next(self.ts).internal, 0) broker.enable_sharding(next(self.ts)) orig_execute = GreenDBConnection.execute trigger = 'INSERT into object' def mock_execute(conn, *args, **kwargs): if trigger in args[0]: raise sqlite3.OperationalError() return orig_execute(conn, *args, **kwargs) with mock.patch('swift.common.db.GreenDBConnection.execute', mock_execute): res = broker.set_sharding_state() self.assertFalse(res) lines = broker.logger.get_lines_for_level('error') self.assertIn('Failed to set the ROWID', lines[0]) self.assertFalse(lines[1:]) broker.logger.clear() trigger = 'UPDATE container_stat SET created_at' with mock.patch('swift.common.db.GreenDBConnection.execute', mock_execute): res = broker.set_sharding_state() self.assertFalse(res) lines = broker.logger.get_lines_for_level('error') self.assertIn( 'Failed to sync the container_stat table/view with the fresh ' 'database', lines[0]) self.assertFalse(lines[1:]) @with_tempdir def test_set_sharded_state_errors(self, tempdir): retiring_db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(retiring_db_path, account='a', container='c', logger=debug_logger()) broker.initialize(next(self.ts).internal, 0) pre_epoch = next(self.ts) broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) # unlink fails with mock.patch('os.unlink', side_effect=OSError(errno.EPERM)): self.assertFalse(broker.set_sharded_state()) lines = broker.logger.get_lines_for_level('error') self.assertIn('Failed to unlink', lines[0]) self.assertFalse(lines[1:]) self.assertFalse(broker.logger.get_lines_for_level('warning')) self.assertTrue(os.path.exists(retiring_db_path)) self.assertTrue(os.path.exists(broker.db_file)) # extra files extra_filename = make_db_file_path(broker.db_file, pre_epoch) self.assertNotEqual(extra_filename, broker.db_file) # sanity check with open(extra_filename, 'wb'): pass broker.logger.clear() self.assertFalse(broker.set_sharded_state()) lines = broker.logger.get_lines_for_level('warning') self.assertIn('Still have multiple db files', lines[0]) self.assertFalse(lines[1:]) self.assertFalse(broker.logger.get_lines_for_level('error')) self.assertTrue(os.path.exists(retiring_db_path)) self.assertTrue(os.path.exists(broker.db_file)) # retiring file missing broker.logger.clear() os.unlink(retiring_db_path) self.assertFalse(broker.set_sharded_state()) lines = broker.logger.get_lines_for_level('warning') self.assertIn('Refusing to delete', lines[0]) self.assertFalse(lines[1:]) self.assertFalse(broker.logger.get_lines_for_level('error')) self.assertTrue(os.path.exists(broker.db_file)) @with_tempdir def test_get_brokers(self, tempdir): retiring_db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(retiring_db_path, account='a', container='c', logger=debug_logger()) broker.initialize(next(self.ts).internal, 0) brokers = broker.get_brokers() self.assertEqual(retiring_db_path, brokers[0].db_file) self.assertFalse(brokers[0].skip_commits) self.assertFalse(brokers[1:]) broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) brokers = broker.get_brokers() self.assertEqual(retiring_db_path, brokers[0].db_file) self.assertTrue(brokers[0].skip_commits) self.assertEqual(broker.db_file, brokers[1].db_file) self.assertFalse(brokers[1].skip_commits) self.assertFalse(brokers[2:]) # same outcome when called on retiring db broker brokers = brokers[0].get_brokers() self.assertEqual(retiring_db_path, brokers[0].db_file) self.assertTrue(brokers[0].skip_commits) self.assertEqual(broker.db_file, brokers[1].db_file) self.assertFalse(brokers[1].skip_commits) self.assertFalse(brokers[2:]) self.assertTrue(broker.set_sharded_state()) brokers = broker.get_brokers() self.assertEqual(broker.db_file, brokers[0].db_file) self.assertFalse(brokers[0].skip_commits) self.assertFalse(brokers[1:]) # unexpected extra file should be ignored with open(retiring_db_path, 'wb'): pass retiring_db_path = broker.db_file broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) broker.reload_db_files() self.assertEqual(3, len(broker.db_files)) # sanity check brokers = broker.get_brokers() self.assertEqual(retiring_db_path, brokers[0].db_file) self.assertTrue(brokers[0].skip_commits) self.assertEqual(broker.db_file, brokers[1].db_file) self.assertFalse(brokers[1].skip_commits) self.assertFalse(brokers[2:]) lines = broker.logger.get_lines_for_level('warning') self.assertIn('Unexpected db files', lines[0]) self.assertFalse(lines[1:]) @with_tempdir def test_merge_shard_ranges(self, tempdir): ts = [next(self.ts) for _ in range(16)] db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker( db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) # sanity check self.assertFalse(broker.get_shard_ranges(include_deleted=True)) broker.merge_shard_ranges(None) self.assertFalse(broker.get_shard_ranges(include_deleted=True)) # merge item at ts1 # sr___ sr_b_1_1 = ShardRange('a/c_b', ts[1], lower='a', upper='b', object_count=2) broker.merge_shard_ranges([sr_b_1_1]) self._assert_shard_ranges(broker, [sr_b_1_1]) # merge older item - ignored sr_b_0_0 = ShardRange('a/c_b', ts[0], lower='a', upper='b', object_count=1) broker.merge_shard_ranges([sr_b_0_0]) self._assert_shard_ranges(broker, [sr_b_1_1]) # merge same timestamp - ignored broker.merge_shard_ranges([dict(sr_b_1_1, lower='', upper='c')]) self._assert_shard_ranges(broker, [sr_b_1_1]) broker.merge_shard_ranges([dict(sr_b_1_1, object_count=99)]) self._assert_shard_ranges(broker, [sr_b_1_1]) # merge list with older item *after* newer item sr_c_2_2 = ShardRange('a/c_c', ts[2], lower='b', upper='c', object_count=3) sr_c_3_3 = ShardRange('a/c_c', ts[3], lower='b', upper='c', object_count=4) broker.merge_shard_ranges([sr_c_3_3, sr_c_2_2]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_3_3]) # merge newer item - updated sr_c_5_5 = ShardRange('a/c_c', ts[5], lower='b', upper='c', object_count=5) broker.merge_shard_ranges([sr_c_5_5]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_5]) # merge older metadata item - ignored sr_c_5_4 = ShardRange('a/c_c', ts[5], lower='b', upper='c', object_count=6, meta_timestamp=ts[4]) broker.merge_shard_ranges([sr_c_5_4]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_5]) # merge newer metadata item - only metadata is updated sr_c_5_6 = ShardRange('a/c_c', ts[5], lower='b', upper='c', object_count=7, meta_timestamp=ts[6]) broker.merge_shard_ranges([dict(sr_c_5_6, lower='', upper='d')]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_6]) # merge older created_at, newer metadata item - ignored sr_c_4_7 = ShardRange('a/c_c', ts[4], lower='b', upper='c', object_count=8, meta_timestamp=ts[7]) broker.merge_shard_ranges([sr_c_4_7]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_6]) # merge list with older metadata item *after* newer metadata item sr_c_5_11 = ShardRange('a/c_c', ts[5], lower='b', upper='c', object_count=9, meta_timestamp=ts[11]) broker.merge_shard_ranges([sr_c_5_11, sr_c_5_6]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_11]) # deleted item at *same timestamp* as existing - deleted ignored broker.merge_shard_ranges([dict(sr_b_1_1, deleted=1, object_count=0)]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_11]) sr_b_1_1.meta_timestamp = ts[11] broker.merge_shard_ranges([dict(sr_b_1_1, deleted=1)]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_11]) sr_b_1_1.state_timestamp = ts[11] broker.merge_shard_ranges([dict(sr_b_1_1, deleted=1)]) self._assert_shard_ranges(broker, [sr_b_1_1, sr_c_5_11]) # delete item at *newer timestamp* - updated sr_b_2_2_deleted = ShardRange('a/c_b', ts[2], lower='a', upper='b', object_count=0, deleted=1) broker.merge_shard_ranges([sr_b_2_2_deleted]) self._assert_shard_ranges(broker, [sr_b_2_2_deleted, sr_c_5_11]) # merge list with older undeleted item *after* newer deleted item # NB deleted timestamp trumps newer meta timestamp sr_c_9_12 = ShardRange('a/c_c', ts[9], lower='b', upper='c', object_count=10, meta_timestamp=ts[12]) sr_c_10_10_deleted = ShardRange('a/c_c', ts[10], lower='b', upper='c', object_count=0, deleted=1) broker.merge_shard_ranges([sr_c_10_10_deleted, sr_c_9_12]) self._assert_shard_ranges( broker, [sr_b_2_2_deleted, sr_c_10_10_deleted]) # merge a ShardRangeList sr_b_13 = ShardRange('a/c_b', ts[13], lower='a', upper='b', object_count=10, meta_timestamp=ts[13]) sr_c_13 = ShardRange('a/c_c', ts[13], lower='b', upper='c', object_count=10, meta_timestamp=ts[13]) broker.merge_shard_ranges(ShardRangeList([sr_c_13, sr_b_13])) self._assert_shard_ranges( broker, [sr_b_13, sr_c_13]) # merge with tombstones but same meta_timestamp sr_c_13_tombs = ShardRange('a/c_c', ts[13], lower='b', upper='c', object_count=10, meta_timestamp=ts[13], tombstones=999) broker.merge_shard_ranges(sr_c_13_tombs) self._assert_shard_ranges( broker, [sr_b_13, sr_c_13]) # merge with tombstones at newer meta_timestamp sr_c_13_tombs = ShardRange('a/c_c', ts[13], lower='b', upper='c', object_count=1, meta_timestamp=ts[14], tombstones=999) broker.merge_shard_ranges(sr_c_13_tombs) self._assert_shard_ranges( broker, [sr_b_13, sr_c_13_tombs]) @with_tempdir def test_merge_shard_ranges_state(self, tempdir): db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) expected_shard_ranges = [] def do_test(orig_state, orig_timestamp, test_state, test_timestamp, expected_state, expected_timestamp): index = len(expected_shard_ranges) sr = ShardRange('a/%s' % index, orig_timestamp, '%03d' % index, '%03d' % (index + 1), state=orig_state) broker.merge_shard_ranges([sr]) sr.state = test_state sr.state_timestamp = test_timestamp broker.merge_shard_ranges([sr]) sr.state = expected_state sr.state_timestamp = expected_timestamp expected_shard_ranges.append(sr) self._assert_shard_ranges(broker, expected_shard_ranges) # state at older state_timestamp is not merged for orig_state in ShardRange.STATES: for test_state in ShardRange.STATES: ts_older = next(self.ts) ts = next(self.ts) do_test(orig_state, ts, test_state, ts_older, orig_state, ts) # more advanced state at same timestamp is merged for orig_state in ShardRange.STATES: for test_state in ShardRange.STATES: ts = next(self.ts) do_test(orig_state, ts, test_state, ts, test_state if test_state > orig_state else orig_state, ts) # any state at newer timestamp is merged for orig_state in ShardRange.STATES: for test_state in ShardRange.STATES: ts = next(self.ts) ts_newer = next(self.ts) do_test(orig_state, ts, test_state, ts_newer, test_state, ts_newer) def _check_object_stats_when_old_style_sharded( self, a, c, root_a, root_c, tempdir): # common setup and assertions for root and shard containers db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker( db_path, account=a, container=c) broker.initialize(next(self.ts).internal, 0) broker.set_sharding_sysmeta('Root', '%s/%s' % (root_a, root_c)) broker.merge_items([{'name': 'obj', 'size': 14, 'etag': 'blah', 'content_type': 'text/plain', 'deleted': 0, 'created_at': Timestamp.now().internal}]) self.assertEqual(1, broker.get_info()['object_count']) self.assertEqual(14, broker.get_info()['bytes_used']) broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) sr_1 = ShardRange( '%s/%s1' % (root_a, root_c), Timestamp.now(), lower='', upper='m', object_count=99, bytes_used=999, state=ShardRange.ACTIVE) sr_2 = ShardRange( '%s/%s2' % (root_a, root_c), Timestamp.now(), lower='m', upper='', object_count=21, bytes_used=1000, state=ShardRange.ACTIVE) broker.merge_shard_ranges([sr_1, sr_2]) self.assertEqual(1, broker.get_info()['object_count']) self.assertEqual(14, broker.get_info()['bytes_used']) return broker @with_tempdir def test_object_stats_old_style_root_container(self, tempdir): broker = self._check_object_stats_when_old_style_sharded( 'a', 'c', 'a', 'c', tempdir) self.assertTrue(broker.is_root_container()) # sanity self.assertTrue(broker.set_sharded_state()) self.assertEqual(120, broker.get_info()['object_count']) self.assertEqual(1999, broker.get_info()['bytes_used']) @with_tempdir def test_object_stats_old_style_shard_container(self, tempdir): broker = self._check_object_stats_when_old_style_sharded( '.shard_a', 'c-blah', 'a', 'c', tempdir) self.assertFalse(broker.is_root_container()) # sanity self.assertTrue(broker.set_sharded_state()) self.assertEqual(0, broker.get_info()['object_count']) self.assertEqual(0, broker.get_info()['bytes_used']) def _check_object_stats_when_sharded(self, a, c, root_a, root_c, tempdir): # common setup and assertions for root and shard containers db_path = os.path.join( tempdir, 'containers', 'part', 'suffix', 'hash', 'container.db') broker = ContainerBroker( db_path, account=a, container=c) broker.initialize(next(self.ts).internal, 0) broker.set_sharding_sysmeta('Quoted-Root', '%s/%s' % (root_a, root_c)) broker.merge_items([{'name': 'obj', 'size': 14, 'etag': 'blah', 'content_type': 'text/plain', 'deleted': 0, 'created_at': Timestamp.now().internal}]) self.assertEqual(1, broker.get_info()['object_count']) self.assertEqual(14, broker.get_info()['bytes_used']) broker.enable_sharding(next(self.ts)) self.assertTrue(broker.set_sharding_state()) sr_1 = ShardRange( '%s/%s1' % (root_a, root_c), Timestamp.now(), lower='', upper='m', object_count=99, bytes_used=999, state=ShardRange.ACTIVE) sr_2 = ShardRange( '%s/%s2' % (root_a, root_c), Timestamp.now(), lower='m', upper='', object_count=21, bytes_used=1000, state=ShardRange.ACTIVE) broker.merge_shard_ranges([sr_1, sr_2]) self.assertEqual(1, broker.get_info()['object_count']) self.assertEqual(14, broker.get_info()['bytes_used']) return broker @with_tempdir def test_object_stats_root_container(self, tempdir): broker = self._check_object_stats_when_sharded( 'a', 'c', 'a', 'c', tempdir) self.assertTrue(broker.is_root_container()) # sanity self.assertTrue(broker.set_sharded_state()) self.assertEqual(120, broker.get_info()['object_count']) self.assertEqual(1999, broker.get_info()['bytes_used']) @with_tempdir def test_object_stats_shard_container(self, tempdir): broker = self._check_object_stats_when_sharded( '.shard_a', 'c-blah', 'a', 'c', tempdir) self.assertFalse(broker.is_root_container()) # sanity self.assertTrue(broker.set_sharded_state()) self.assertEqual(0, broker.get_info()['object_count']) self.assertEqual(0, broker.get_info()['bytes_used']) class TestCommonContainerBroker(test_db.TestExampleBroker): broker_class = ContainerBroker def setUp(self): super(TestCommonContainerBroker, self).setUp() self.policy = random.choice(list(POLICIES)) def put_item(self, broker, timestamp): broker.put_object('test', timestamp, 0, 'text/plain', 'x', storage_policy_index=int(self.policy)) def delete_item(self, broker, timestamp): broker.delete_object('test', timestamp, storage_policy_index=int(self.policy)) class ContainerBrokerMigrationMixin(object): """ Mixin for running ContainerBroker against databases created with older schemas. """ class OverrideCreateShardRangesTable(object): def __init__(self, func): self.func = func def __get__(self, obj, obj_type): if inspect.stack()[1][3] == '_initialize': return lambda *a, **kw: None return self.func.__get__(obj, obj_type) def setUp(self): self._imported_create_object_table = \ ContainerBroker.create_object_table ContainerBroker.create_object_table = \ prespi_create_object_table self._imported_create_container_info_table = \ ContainerBroker.create_container_info_table ContainerBroker.create_container_info_table = \ premetadata_create_container_info_table self._imported_create_policy_stat_table = \ ContainerBroker.create_policy_stat_table ContainerBroker.create_policy_stat_table = lambda *args: None self._imported_create_shard_range_table = \ ContainerBroker.create_shard_range_table if 'shard_range' not in self.expected_db_tables: ContainerBroker.create_shard_range_table = \ self.OverrideCreateShardRangesTable( ContainerBroker.create_shard_range_table) self.ts = make_timestamp_iter() @classmethod @contextmanager def old_broker(cls): cls.runTest = lambda *a, **k: None case = cls() case.setUp() try: yield ContainerBroker finally: case.tearDown() def tearDown(self): ContainerBroker.create_container_info_table = \ self._imported_create_container_info_table ContainerBroker.create_object_table = \ self._imported_create_object_table ContainerBroker.create_shard_range_table = \ self._imported_create_shard_range_table ContainerBroker.create_policy_stat_table = \ self._imported_create_policy_stat_table def premetadata_create_container_info_table(self, conn, put_timestamp, _spi=None): """ Copied from ContainerBroker before the metadata column was added; used for testing with TestContainerBrokerBeforeMetadata. Create the container_stat table which is specific to the container DB. :param conn: DB connection object :param put_timestamp: put timestamp """ if put_timestamp is None: put_timestamp = Timestamp(0).internal conn.executescript(''' CREATE TABLE container_stat ( account TEXT, container TEXT, created_at TEXT, put_timestamp TEXT DEFAULT '0', delete_timestamp TEXT DEFAULT '0', object_count INTEGER, bytes_used INTEGER, reported_put_timestamp TEXT DEFAULT '0', reported_delete_timestamp TEXT DEFAULT '0', reported_object_count INTEGER DEFAULT 0, reported_bytes_used INTEGER DEFAULT 0, hash TEXT default '00000000000000000000000000000000', id TEXT, status TEXT DEFAULT '', status_changed_at TEXT DEFAULT '0' ); INSERT INTO container_stat (object_count, bytes_used) VALUES (0, 0); ''') conn.execute(''' UPDATE container_stat SET account = ?, container = ?, created_at = ?, id = ?, put_timestamp = ? ''', (self.account, self.container, Timestamp.now().internal, str(uuid4()), put_timestamp)) class TestContainerBrokerBeforeMetadata(ContainerBrokerMigrationMixin, TestContainerBroker): """ Tests for ContainerBroker against databases created before the metadata column was added. """ expected_db_tables = {'outgoing_sync', 'incoming_sync', 'object', 'sqlite_sequence', 'container_stat'} def setUp(self): super(TestContainerBrokerBeforeMetadata, self).setUp() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) exc = None with broker.get() as conn: try: conn.execute('SELECT metadata FROM container_stat') except BaseException as err: exc = err self.assertTrue('no such column: metadata' in str(exc)) def tearDown(self): super(TestContainerBrokerBeforeMetadata, self).tearDown() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: conn.execute('SELECT metadata FROM container_stat') def prexsync_create_container_info_table(self, conn, put_timestamp, _spi=None): """ Copied from ContainerBroker before the x_container_sync_point[12] columns were added; used for testing with TestContainerBrokerBeforeXSync. Create the container_stat table which is specific to the container DB. :param conn: DB connection object :param put_timestamp: put timestamp """ if put_timestamp is None: put_timestamp = Timestamp(0).internal conn.executescript(""" CREATE TABLE container_stat ( account TEXT, container TEXT, created_at TEXT, put_timestamp TEXT DEFAULT '0', delete_timestamp TEXT DEFAULT '0', object_count INTEGER, bytes_used INTEGER, reported_put_timestamp TEXT DEFAULT '0', reported_delete_timestamp TEXT DEFAULT '0', reported_object_count INTEGER DEFAULT 0, reported_bytes_used INTEGER DEFAULT 0, hash TEXT default '00000000000000000000000000000000', id TEXT, status TEXT DEFAULT '', status_changed_at TEXT DEFAULT '0', metadata TEXT DEFAULT '' ); INSERT INTO container_stat (object_count, bytes_used) VALUES (0, 0); """) conn.execute(''' UPDATE container_stat SET account = ?, container = ?, created_at = ?, id = ?, put_timestamp = ? ''', (self.account, self.container, Timestamp.now().internal, str(uuid4()), put_timestamp)) class TestContainerBrokerBeforeXSync(ContainerBrokerMigrationMixin, TestContainerBroker): """ Tests for ContainerBroker against databases created before the x_container_sync_point[12] columns were added. """ expected_db_tables = {'outgoing_sync', 'incoming_sync', 'object', 'sqlite_sequence', 'container_stat'} def setUp(self): super(TestContainerBrokerBeforeXSync, self).setUp() ContainerBroker.create_container_info_table = \ prexsync_create_container_info_table broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) exc = None with broker.get() as conn: try: conn.execute('''SELECT x_container_sync_point1 FROM container_stat''') except BaseException as err: exc = err self.assertTrue('no such column: x_container_sync_point1' in str(exc)) def tearDown(self): super(TestContainerBrokerBeforeXSync, self).tearDown() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: conn.execute('SELECT x_container_sync_point1 FROM container_stat') def prespi_create_object_table(self, conn, *args, **kwargs): conn.executescript(""" CREATE TABLE object ( ROWID INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, created_at TEXT, size INTEGER, content_type TEXT, etag TEXT, deleted INTEGER DEFAULT 0 ); CREATE INDEX ix_object_deleted_name ON object (deleted, name); CREATE TRIGGER object_insert AFTER INSERT ON object BEGIN UPDATE container_stat SET object_count = object_count + (1 - new.deleted), bytes_used = bytes_used + new.size, hash = chexor(hash, new.name, new.created_at); END; CREATE TRIGGER object_update BEFORE UPDATE ON object BEGIN SELECT RAISE(FAIL, 'UPDATE not allowed; DELETE and INSERT'); END; CREATE TRIGGER object_delete AFTER DELETE ON object BEGIN UPDATE container_stat SET object_count = object_count - (1 - old.deleted), bytes_used = bytes_used - old.size, hash = chexor(hash, old.name, old.created_at); END; """) def prespi_create_container_info_table(self, conn, put_timestamp, _spi=None): """ Copied from ContainerBroker before the storage_policy_index column was added; used for testing with TestContainerBrokerBeforeSPI. Create the container_stat table which is specific to the container DB. :param conn: DB connection object :param put_timestamp: put timestamp """ if put_timestamp is None: put_timestamp = Timestamp(0).internal conn.executescript(""" CREATE TABLE container_stat ( account TEXT, container TEXT, created_at TEXT, put_timestamp TEXT DEFAULT '0', delete_timestamp TEXT DEFAULT '0', object_count INTEGER, bytes_used INTEGER, reported_put_timestamp TEXT DEFAULT '0', reported_delete_timestamp TEXT DEFAULT '0', reported_object_count INTEGER DEFAULT 0, reported_bytes_used INTEGER DEFAULT 0, hash TEXT default '00000000000000000000000000000000', id TEXT, status TEXT DEFAULT '', status_changed_at TEXT DEFAULT '0', metadata TEXT DEFAULT '', x_container_sync_point1 INTEGER DEFAULT -1, x_container_sync_point2 INTEGER DEFAULT -1 ); INSERT INTO container_stat (object_count, bytes_used) VALUES (0, 0); """) conn.execute(''' UPDATE container_stat SET account = ?, container = ?, created_at = ?, id = ?, put_timestamp = ? ''', (self.account, self.container, Timestamp.now().internal, str(uuid4()), put_timestamp)) class TestContainerBrokerBeforeSPI(ContainerBrokerMigrationMixin, TestContainerBroker): """ Tests for ContainerBroker against databases created before the storage_policy_index column was added. """ expected_db_tables = {'outgoing_sync', 'incoming_sync', 'object', 'sqlite_sequence', 'container_stat'} def setUp(self): super(TestContainerBrokerBeforeSPI, self).setUp() ContainerBroker.create_container_info_table = \ prespi_create_container_info_table broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with self.assertRaises(sqlite3.DatabaseError) as raised, \ broker.get() as conn: conn.execute('''SELECT storage_policy_index FROM container_stat''') self.assertIn('no such column: storage_policy_index', str(raised.exception)) def tearDown(self): super(TestContainerBrokerBeforeSPI, self).tearDown() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: conn.execute('SELECT storage_policy_index FROM container_stat') @patch_policies @with_tempdir def test_object_table_migration(self, tempdir): db_path = os.path.join(tempdir, 'container.db') # initialize an un-migrated database broker = ContainerBroker(db_path, account='a', container='c') put_timestamp = Timestamp(int(time())).internal broker.initialize(put_timestamp, None) with broker.get() as conn: try: conn.execute(''' SELECT storage_policy_index FROM object ''').fetchone()[0] except sqlite3.OperationalError as err: # confirm that the table doesn't have this column self.assertTrue('no such column: storage_policy_index' in str(err)) else: self.fail('broker did not raise sqlite3.OperationalError ' 'trying to select from storage_policy_index ' 'from object table!') # manually insert an existing row to avoid automatic migration obj_put_timestamp = Timestamp.now().internal with broker.get() as conn: conn.execute(''' INSERT INTO object (name, created_at, size, content_type, etag, deleted) VALUES (?, ?, ?, ?, ?, ?) ''', ('test_name', obj_put_timestamp, 123, 'text/plain', '8f4c680e75ca4c81dc1917ddab0a0b5c', 0)) conn.commit() # make sure we can iter objects without performing migration for o in broker.list_objects_iter(1, None, None, None, None): self.assertEqual(o, ('test_name', obj_put_timestamp, 123, 'text/plain', '8f4c680e75ca4c81dc1917ddab0a0b5c')) # get_info info = broker.get_info() expected = { 'account': 'a', 'container': 'c', 'put_timestamp': put_timestamp, 'delete_timestamp': '0', 'status_changed_at': '0', 'bytes_used': 123, 'object_count': 1, 'reported_put_timestamp': '0', 'reported_delete_timestamp': '0', 'reported_object_count': 0, 'reported_bytes_used': 0, 'x_container_sync_point1': -1, 'x_container_sync_point2': -1, 'storage_policy_index': 0, } for k, v in expected.items(): self.assertEqual(info[k], v, 'The value for %s was %r not %r' % ( k, info[k], v)) self.assertTrue( Timestamp(info['created_at']) > Timestamp(put_timestamp)) self.assertNotEqual(int(info['hash'], 16), 0) orig_hash = info['hash'] # get_replication_info info = broker.get_replication_info() # translate object count for replicators expected['count'] = expected.pop('object_count') for k, v in expected.items(): self.assertEqual(info[k], v) self.assertTrue( Timestamp(info['created_at']) > Timestamp(put_timestamp)) self.assertEqual(info['hash'], orig_hash) self.assertEqual(info['max_row'], 1) self.assertEqual(info['metadata'], '') # get_policy_stats info = broker.get_policy_stats() expected = { 0: {'bytes_used': 123, 'object_count': 1} } self.assertEqual(info, expected) # empty & is_deleted self.assertEqual(broker.empty(), False) self.assertEqual(broker.is_deleted(), False) # no migrations have occurred yet # container_stat table with broker.get() as conn: try: conn.execute(''' SELECT storage_policy_index FROM container_stat ''').fetchone()[0] except sqlite3.OperationalError as err: # confirm that the table doesn't have this column self.assertTrue('no such column: storage_policy_index' in str(err)) else: self.fail('broker did not raise sqlite3.OperationalError ' 'trying to select from storage_policy_index ' 'from container_stat table!') # object table with broker.get() as conn: try: conn.execute(''' SELECT storage_policy_index FROM object ''').fetchone()[0] except sqlite3.OperationalError as err: # confirm that the table doesn't have this column self.assertTrue('no such column: storage_policy_index' in str(err)) else: self.fail('broker did not raise sqlite3.OperationalError ' 'trying to select from storage_policy_index ' 'from object table!') # policy_stat table with broker.get() as conn: try: conn.execute(''' SELECT storage_policy_index FROM policy_stat ''').fetchone()[0] except sqlite3.OperationalError as err: # confirm that the table does not exist yet self.assertTrue('no such table: policy_stat' in str(err)) else: self.fail('broker did not raise sqlite3.OperationalError ' 'trying to select from storage_policy_index ' 'from policy_stat table!') # now do a PUT with a different value for storage_policy_index # which will update the DB schema as well as update policy_stats # for legacy objects in the DB (those without an SPI) second_object_put_timestamp = Timestamp.now().internal other_policy = [p for p in POLICIES if p.idx != 0][0] broker.put_object('test_second', second_object_put_timestamp, 456, 'text/plain', 'cbac50c175793513fa3c581551c876ab', storage_policy_index=other_policy.idx) broker._commit_puts_stale_ok() # we are fully migrated and both objects have their # storage_policy_index with broker.get() as conn: storage_policy_index = conn.execute(''' SELECT storage_policy_index FROM container_stat ''').fetchone()[0] self.assertEqual(storage_policy_index, 0) rows = conn.execute(''' SELECT name, storage_policy_index FROM object ''').fetchall() for row in rows: if row[0] == 'test_name': self.assertEqual(row[1], 0) else: self.assertEqual(row[1], other_policy.idx) # and all stats tracking is in place stats = broker.get_policy_stats() self.assertEqual(len(stats), 2) self.assertEqual(stats[0]['object_count'], 1) self.assertEqual(stats[0]['bytes_used'], 123) self.assertEqual(stats[other_policy.idx]['object_count'], 1) self.assertEqual(stats[other_policy.idx]['bytes_used'], 456) # get info still reports on the legacy storage policy info = broker.get_info() self.assertEqual(info['object_count'], 1) self.assertEqual(info['bytes_used'], 123) # unless you change the storage policy broker.set_storage_policy_index(other_policy.idx) info = broker.get_info() self.assertEqual(info['object_count'], 1) self.assertEqual(info['bytes_used'], 456) class TestContainerBrokerBeforeShardRanges(ContainerBrokerMigrationMixin, TestContainerBroker): """ Tests for ContainerBroker against databases created before the shard_ranges table was added. """ # *grumble grumble* This should include container_info/policy_stat :-/ expected_db_tables = {'outgoing_sync', 'incoming_sync', 'object', 'sqlite_sequence', 'container_stat'} def setUp(self): super(TestContainerBrokerBeforeShardRanges, self).setUp() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with self.assertRaises(sqlite3.DatabaseError) as raised, \ broker.get() as conn: conn.execute('''SELECT * FROM shard_range''') self.assertIn('no such table: shard_range', str(raised.exception)) def tearDown(self): super(TestContainerBrokerBeforeShardRanges, self).tearDown() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: conn.execute('''SELECT * FROM shard_range''') def pre_reported_create_shard_range_table(self, conn): """ Copied from ContainerBroker before the reported column was added; used for testing with TestContainerBrokerBeforeShardRangeReportedColumn. Create a shard_range table with no 'reported' column. :param conn: DB connection object """ conn.execute(""" CREATE TABLE shard_range ( ROWID INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, timestamp TEXT, lower TEXT, upper TEXT, object_count INTEGER DEFAULT 0, bytes_used INTEGER DEFAULT 0, meta_timestamp TEXT, deleted INTEGER DEFAULT 0, state INTEGER, state_timestamp TEXT, epoch TEXT ); """) conn.execute(""" CREATE TRIGGER shard_range_update BEFORE UPDATE ON shard_range BEGIN SELECT RAISE(FAIL, 'UPDATE not allowed; DELETE and INSERT'); END; """) class TestContainerBrokerBeforeShardRangeReportedColumn( ContainerBrokerMigrationMixin, TestContainerBroker): """ Tests for ContainerBroker against databases created before the shard_ranges table reported column was added. """ # *grumble grumble* This should include container_info/policy_stat :-/ expected_db_tables = {'outgoing_sync', 'incoming_sync', 'object', 'sqlite_sequence', 'container_stat', 'shard_range'} def setUp(self): super(TestContainerBrokerBeforeShardRangeReportedColumn, self).setUp() ContainerBroker.create_shard_range_table = \ pre_reported_create_shard_range_table broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with self.assertRaises(sqlite3.DatabaseError) as raised, \ broker.get() as conn: conn.execute('''SELECT reported FROM shard_range''') self.assertIn('no such column: reported', str(raised.exception)) def tearDown(self): super(TestContainerBrokerBeforeShardRangeReportedColumn, self).tearDown() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: conn.execute('''SELECT reported FROM shard_range''') @with_tempdir def test_get_shard_ranges_attempts(self, tempdir): # verify that old broker handles new sql query for shard range rows db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) @contextmanager def patch_execute(): with broker.get() as conn: mock_conn = mock.MagicMock() mock_execute = mock.MagicMock() mock_conn.execute = mock_execute @contextmanager def mock_get(): yield mock_conn with mock.patch.object(broker, 'get', mock_get): yield mock_execute, conn with patch_execute() as (mock_execute, conn): mock_execute.side_effect = conn.execute broker.get_shard_ranges() expected = [ mock.call('\n SELECT name, timestamp, lower, upper, ' 'object_count, bytes_used, meta_timestamp, deleted, ' 'state, state_timestamp, epoch, reported, ' 'tombstones\n ' 'FROM shard_range WHERE deleted=0 AND name != ?;\n' ' ', ['a/c']), mock.call('\n SELECT name, timestamp, lower, upper, ' 'object_count, bytes_used, meta_timestamp, deleted, ' 'state, state_timestamp, epoch, 0 as reported, ' 'tombstones\n ' 'FROM shard_range WHERE deleted=0 AND name != ?;\n' ' ', ['a/c']), mock.call('\n SELECT name, timestamp, lower, upper, ' 'object_count, bytes_used, meta_timestamp, deleted, ' 'state, state_timestamp, epoch, 0 as reported, ' '-1 as tombstones\n ' 'FROM shard_range WHERE deleted=0 AND name != ?;\n' ' ', ['a/c']), ] self.assertEqual(expected, mock_execute.call_args_list, mock_execute.call_args_list) # if unexpectedly the call to execute continues to fail for reported, # verify that the exception is raised after a retry with patch_execute() as (mock_execute, conn): def mock_execute_handler(*args, **kwargs): if len(mock_execute.call_args_list) < 3: return conn.execute(*args, **kwargs) else: raise sqlite3.OperationalError('no such column: reported') mock_execute.side_effect = mock_execute_handler with self.assertRaises(sqlite3.OperationalError): broker.get_shard_ranges() self.assertEqual(expected, mock_execute.call_args_list, mock_execute.call_args_list) # if unexpectedly the call to execute continues to fail for tombstones, # verify that the exception is raised after a retry with patch_execute() as (mock_execute, conn): def mock_execute_handler(*args, **kwargs): if len(mock_execute.call_args_list) < 3: return conn.execute(*args, **kwargs) else: raise sqlite3.OperationalError( 'no such column: tombstones') mock_execute.side_effect = mock_execute_handler with self.assertRaises(sqlite3.OperationalError): broker.get_shard_ranges() self.assertEqual(expected, mock_execute.call_args_list, mock_execute.call_args_list) @with_tempdir def test_merge_shard_ranges_migrates_table(self, tempdir): # verify that old broker migrates shard range table db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) shard_ranges = [ShardRange('.shards_a/c_0', next(self.ts), 'a', 'b'), ShardRange('.shards_a/c_1', next(self.ts), 'b', 'c')] orig_migrate_reported = broker._migrate_add_shard_range_reported orig_migrate_tombstones = broker._migrate_add_shard_range_tombstones with mock.patch.object( broker, '_migrate_add_shard_range_reported', side_effect=orig_migrate_reported) as mocked_reported: with mock.patch.object( broker, '_migrate_add_shard_range_tombstones', side_effect=orig_migrate_tombstones) as mocked_tombstones: broker.merge_shard_ranges(shard_ranges[:1]) mocked_reported.assert_called_once_with(mock.ANY) mocked_tombstones.assert_called_once_with(mock.ANY) self._assert_shard_ranges(broker, shard_ranges[:1]) with mock.patch.object( broker, '_migrate_add_shard_range_reported', side_effect=orig_migrate_reported) as mocked_reported: with mock.patch.object( broker, '_migrate_add_shard_range_tombstones', side_effect=orig_migrate_tombstones) as mocked_tombstones: broker.merge_shard_ranges(shard_ranges[1:]) mocked_reported.assert_not_called() mocked_tombstones.assert_not_called() self._assert_shard_ranges(broker, shard_ranges) @with_tempdir def test_merge_shard_ranges_fails_to_migrate_table(self, tempdir): # verify that old broker will raise exception if it unexpectedly fails # to migrate shard range table db_path = os.path.join(tempdir, 'container.db') broker = ContainerBroker(db_path, account='a', container='c') broker.initialize(next(self.ts).internal, 0) shard_ranges = [ShardRange('.shards_a/c_0', next(self.ts), 'a', 'b'), ShardRange('.shards_a/c_1', next(self.ts), 'b', 'c')] # unexpected error during migration with mock.patch.object( broker, '_migrate_add_shard_range_reported', side_effect=sqlite3.OperationalError('unexpected')) \ as mocked_reported: with self.assertRaises(sqlite3.OperationalError): broker.merge_shard_ranges(shard_ranges) # one failed attempt was made to add reported column self.assertEqual(1, mocked_reported.call_count) # migration silently fails with mock.patch.object( broker, '_migrate_add_shard_range_reported') \ as mocked_reported: with self.assertRaises(sqlite3.OperationalError): broker.merge_shard_ranges(shard_ranges) # one failed attempt was made to add reported column self.assertEqual(1, mocked_reported.call_count) with mock.patch.object( broker, '_migrate_add_shard_range_tombstones') \ as mocked_tombstones: with self.assertRaises(sqlite3.OperationalError): broker.merge_shard_ranges(shard_ranges) # first migration adds reported column # one failed attempt was made to add tombstones column self.assertEqual(1, mocked_tombstones.call_count) def pre_tombstones_create_shard_range_table(self, conn): """ Copied from ContainerBroker before the tombstones column was added; used for testing with TestContainerBrokerBeforeShardRangeTombstonesColumn. Create a shard_range table with no 'tombstones' column. :param conn: DB connection object """ # Use execute (not executescript) so we get the benefits of our # GreenDBConnection. Creating a table requires a whole-DB lock; # *any* in-progress cursor will otherwise trip a "database is locked" # error. conn.execute(""" CREATE TABLE shard_range ( ROWID INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, timestamp TEXT, lower TEXT, upper TEXT, object_count INTEGER DEFAULT 0, bytes_used INTEGER DEFAULT 0, meta_timestamp TEXT, deleted INTEGER DEFAULT 0, state INTEGER, state_timestamp TEXT, epoch TEXT, reported INTEGER DEFAULT 0 ); """) conn.execute(""" CREATE TRIGGER shard_range_update BEFORE UPDATE ON shard_range BEGIN SELECT RAISE(FAIL, 'UPDATE not allowed; DELETE and INSERT'); END; """) class TestContainerBrokerBeforeShardRangeTombstonesColumn( ContainerBrokerMigrationMixin, TestContainerBroker): """ Tests for ContainerBroker against databases created before the shard_ranges table tombstones column was added. """ expected_db_tables = {'outgoing_sync', 'incoming_sync', 'object', 'sqlite_sequence', 'container_stat', 'shard_range'} def setUp(self): super(TestContainerBrokerBeforeShardRangeTombstonesColumn, self).setUp() ContainerBroker.create_shard_range_table = \ pre_tombstones_create_shard_range_table broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with self.assertRaises(sqlite3.DatabaseError) as raised, \ broker.get() as conn: conn.execute('''SELECT tombstones FROM shard_range''') self.assertIn('no such column: tombstones', str(raised.exception)) def tearDown(self): super(TestContainerBrokerBeforeShardRangeTombstonesColumn, self).tearDown() broker = ContainerBroker(':memory:', account='a', container='c') broker.initialize(Timestamp('1').internal, 0) with broker.get() as conn: conn.execute('''SELECT tombstones FROM shard_range''') class TestUpdateNewItemFromExisting(unittest.TestCase): # TODO: add test scenarios that have swift_bytes in content_type t0 = '1234567890.00000' t1 = '1234567890.00001' t2 = '1234567890.00002' t3 = '1234567890.00003' t4 = '1234567890.00004' t5 = '1234567890.00005' t6 = '1234567890.00006' t7 = '1234567890.00007' t8 = '1234567890.00008' t20 = '1234567890.00020' t30 = '1234567890.00030' base_new_item = {'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item', 'deleted': '0'} base_existing = {'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting', 'deleted': '0'} # # each scenario is a tuple of: # (existing time, new item times, expected updated item) # # e.g.: # existing -> ({'created_at': t5}, # new_item -> {'created_at': t, 'ctype_timestamp': t, 'meta_timestamp': t}, # expected -> {'created_at': t, # 'etag': , 'size': , 'content_type': }) # scenarios_when_all_existing_wins = ( # # all new_item times <= all existing times -> existing values win # # existing has attrs at single time # ({'created_at': t3}, {'created_at': t0, 'ctype_timestamp': t0, 'meta_timestamp': t0}, {'created_at': t3, 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3}, {'created_at': t0, 'ctype_timestamp': t0, 'meta_timestamp': t1}, {'created_at': t3, 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3}, {'created_at': t0, 'ctype_timestamp': t1, 'meta_timestamp': t1}, {'created_at': t3, 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3}, {'created_at': t0, 'ctype_timestamp': t1, 'meta_timestamp': t2}, {'created_at': t3, 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3}, {'created_at': t0, 'ctype_timestamp': t1, 'meta_timestamp': t3}, {'created_at': t3, 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3}, {'created_at': t0, 'ctype_timestamp': t3, 'meta_timestamp': t3}, {'created_at': t3, 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3}, {'created_at': t3, 'ctype_timestamp': t3, 'meta_timestamp': t3}, {'created_at': t3, 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), # # existing has attrs at multiple times: # data @ t3, ctype @ t5, meta @t7 -> existing created_at = t3+2+2 # ({'created_at': t3 + '+2+2'}, {'created_at': t0, 'ctype_timestamp': t0, 'meta_timestamp': t0}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t3, 'meta_timestamp': t3}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t4, 'meta_timestamp': t4}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t4, 'meta_timestamp': t5}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t4, 'meta_timestamp': t7}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t4, 'meta_timestamp': t7}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t5, 'meta_timestamp': t5}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t5, 'meta_timestamp': t6}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t5, 'meta_timestamp': t7}, {'created_at': t3 + '+2+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ) scenarios_when_all_new_item_wins = ( # no existing record (None, {'created_at': t4, 'ctype_timestamp': t4, 'meta_timestamp': t4}, {'created_at': t4, 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), (None, {'created_at': t4, 'ctype_timestamp': t4, 'meta_timestamp': t5}, {'created_at': t4 + '+0+1', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), (None, {'created_at': t4, 'ctype_timestamp': t5, 'meta_timestamp': t5}, {'created_at': t4 + '+1+0', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), (None, {'created_at': t4, 'ctype_timestamp': t5, 'meta_timestamp': t6}, {'created_at': t4 + '+1+1', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), # # all new_item times > all existing times -> new item values win # # existing has attrs at single time # ({'created_at': t3}, {'created_at': t4, 'ctype_timestamp': t4, 'meta_timestamp': t4}, {'created_at': t4, 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3}, {'created_at': t4, 'ctype_timestamp': t4, 'meta_timestamp': t5}, {'created_at': t4 + '+0+1', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3}, {'created_at': t4, 'ctype_timestamp': t5, 'meta_timestamp': t5}, {'created_at': t4 + '+1+0', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3}, {'created_at': t4, 'ctype_timestamp': t5, 'meta_timestamp': t6}, {'created_at': t4 + '+1+1', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), # # existing has attrs at multiple times: # data @ t3, ctype @ t5, meta @t7 -> existing created_at = t3+2+2 # ({'created_at': t3 + '+2+2'}, {'created_at': t4, 'ctype_timestamp': t6, 'meta_timestamp': t8}, {'created_at': t4 + '+2+2', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3 + '+2+2'}, {'created_at': t6, 'ctype_timestamp': t6, 'meta_timestamp': t8}, {'created_at': t6 + '+0+2', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3 + '+2+2'}, {'created_at': t4, 'ctype_timestamp': t8, 'meta_timestamp': t8}, {'created_at': t4 + '+4+0', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3 + '+2+2'}, {'created_at': t6, 'ctype_timestamp': t8, 'meta_timestamp': t8}, {'created_at': t6 + '+2+0', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3 + '+2+2'}, {'created_at': t8, 'ctype_timestamp': t8, 'meta_timestamp': t8}, {'created_at': t8, 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ) scenarios_when_some_new_item_wins = ( # # some but not all new_item times > existing times -> mixed updates # # existing has attrs at single time # ({'created_at': t3}, {'created_at': t3, 'ctype_timestamp': t3, 'meta_timestamp': t4}, {'created_at': t3 + '+0+1', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3}, {'created_at': t3, 'ctype_timestamp': t4, 'meta_timestamp': t4}, {'created_at': t3 + '+1+0', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'neW_item'}), ({'created_at': t3}, {'created_at': t3, 'ctype_timestamp': t4, 'meta_timestamp': t5}, {'created_at': t3 + '+1+1', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'neW_item'}), # # existing has attrs at multiple times: # data @ t3, ctype @ t5, meta @t7 -> existing created_at = t3+2+2 # ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t3, 'meta_timestamp': t8}, {'created_at': t3 + '+2+3', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t3, 'ctype_timestamp': t6, 'meta_timestamp': t8}, {'created_at': t3 + '+3+2', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'neW_item'}), ({'created_at': t3 + '+2+2'}, {'created_at': t4, 'ctype_timestamp': t4, 'meta_timestamp': t6}, {'created_at': t4 + '+1+2', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'exIsting'}), ({'created_at': t3 + '+2+2'}, {'created_at': t4, 'ctype_timestamp': t6, 'meta_timestamp': t6}, {'created_at': t4 + '+2+1', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'neW_item'}), ({'created_at': t3 + '+2+2'}, {'created_at': t4, 'ctype_timestamp': t4, 'meta_timestamp': t8}, {'created_at': t4 + '+1+3', 'etag': 'New_item', 'size': 'nEw_item', 'content_type': 'exIsting'}), # this scenario is to check that the deltas are in hex ({'created_at': t3 + '+2+2'}, {'created_at': t2, 'ctype_timestamp': t20, 'meta_timestamp': t30}, {'created_at': t3 + '+11+a', 'etag': 'Existing', 'size': 'eXisting', 'content_type': 'neW_item'}), ) def _test_scenario(self, scenario, newer): existing_time, new_item_times, expected_attrs = scenario # this is the existing record... existing = None if existing_time: existing = dict(self.base_existing) existing.update(existing_time) # this is the new item to update new_item = dict(self.base_new_item) new_item.update(new_item_times) # this is the expected result of the update expected = dict(new_item) expected.update(expected_attrs) expected['data_timestamp'] = new_item['created_at'] try: self.assertIs(newer, update_new_item_from_existing(new_item, existing)) self.assertDictEqual(expected, new_item) except AssertionError as e: msg = ('Scenario: existing %s, new_item %s, expected %s.' % scenario) msg = '%s Failed with: %s' % (msg, e.message) raise AssertionError(msg) def test_update_new_item_from_existing(self): for scenario in self.scenarios_when_all_existing_wins: self._test_scenario(scenario, False) for scenario in self.scenarios_when_all_new_item_wins: self._test_scenario(scenario, True) for scenario in self.scenarios_when_some_new_item_wins: self._test_scenario(scenario, True) class TestModuleFunctions(unittest.TestCase): def test_sift_shard_ranges(self): ts_iter = make_timestamp_iter() existing_shards = {} sr1 = dict(ShardRange('a/o', next(ts_iter).internal)) sr2 = dict(ShardRange('a/o2', next(ts_iter).internal)) new_shard_ranges = [sr1, sr2] # first empty existing shards will just add the shards to_add, to_delete = sift_shard_ranges(new_shard_ranges, existing_shards) self.assertEqual(2, len(to_add)) self.assertIn(sr1, to_add) self.assertIn(sr2, to_add) self.assertFalse(to_delete) # if there is a newer version in the existing shards then it won't be # added to to_add existing_shards['a/o'] = dict( ShardRange('a/o', next(ts_iter).internal)) to_add, to_delete = sift_shard_ranges(new_shard_ranges, existing_shards) self.assertEqual([sr2], list(to_add)) self.assertFalse(to_delete) # But if a newer version is in new_shard_ranges then the old will be # added to to_delete and new is added to to_add. sr1['timestamp'] = next(ts_iter).internal to_add, to_delete = sift_shard_ranges(new_shard_ranges, existing_shards) self.assertEqual(2, len(to_add)) self.assertIn(sr1, to_add) self.assertIn(sr2, to_add) self.assertEqual({'a/o'}, to_delete)