71f6fd025e
Currently, the rsync module where the replicators send data is static. It
forbids administrators to set rsync configuration based on their current
deployment or needs.
As an example, the rsyncd configuration example encourages to set a connections
limit for the modules account, container and object. It permits to protect
devices from excessives parallels connections, because it would impact
performances.
On a server with many devices, it is tempting to increase this number
proportionally, but nothing guarantees that the distribution of the connections
will be balanced. In the worst scenario, a single device can receive all the
connections, which is a severe impact on performances.
This commit adds a new option named 'rsync_module' to the *-replicator sections
of the *-server configuration file. This configuration variable can be
extrapolated with device attributes like ip, port, device, zone, ... by using
the format {NAME}. eg:
rsync_module = {replication_ip}::object_{device}
With this configuration, an administrators can solve the problem of connections
distribution by creating one module per device in rsyncd configuration.
The default values are backward compatible:
{replication_ip}::account
{replication_ip}::container
{replication_ip}::object
Option vm_test_mode is deprecated by this commit, but backward compatibility is
maintained. The option is only effective when rsync_module is not set. In that
case, {replication_port} is appended to the default value of rsync_module.
Change-Id: Iad91df50dadbe96c921181797799b4444323ce2e
1439 lines
58 KiB
Python
1439 lines
58 KiB
Python
# Copyright (c) 2010-2012 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import unittest
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from contextlib import contextmanager
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import os
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import logging
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import errno
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import math
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import time
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from mock import patch, call
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from shutil import rmtree, copy
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from tempfile import mkdtemp, NamedTemporaryFile
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import mock
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import simplejson
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from swift.container.backend import DATADIR
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from swift.common import db_replicator
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from swift.common.utils import (normalize_timestamp, hash_path,
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storage_directory)
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from swift.common.exceptions import DriveNotMounted
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from swift.common.swob import HTTPException
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from test import unit
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from test.unit.common.test_db import ExampleBroker
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TEST_ACCOUNT_NAME = 'a c t'
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TEST_CONTAINER_NAME = 'c o n'
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def teardown_module():
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"clean up my monkey patching"
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reload(db_replicator)
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@contextmanager
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def lock_parent_directory(filename):
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yield True
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class FakeRing(object):
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class Ring(object):
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devs = []
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def __init__(self, path, reload_time=15, ring_name=None):
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pass
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def get_part(self, account, container=None, obj=None):
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return 0
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def get_part_nodes(self, part):
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return []
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def get_more_nodes(self, *args):
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return []
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class FakeRingWithSingleNode(object):
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class Ring(object):
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devs = [dict(
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id=1, weight=10.0, zone=1, ip='1.1.1.1', port=6000, device='sdb',
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meta='', replication_ip='1.1.1.1', replication_port=6000
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)]
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def __init__(self, path, reload_time=15, ring_name=None):
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pass
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def get_part(self, account, container=None, obj=None):
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return 0
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def get_part_nodes(self, part):
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return self.devs
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def get_more_nodes(self, *args):
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return (d for d in self.devs)
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class FakeRingWithNodes(object):
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class Ring(object):
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devs = [dict(
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id=1, weight=10.0, zone=1, ip='1.1.1.1', port=6000, device='sdb',
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meta='', replication_ip='1.1.1.1', replication_port=6000, region=1
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), dict(
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id=2, weight=10.0, zone=2, ip='1.1.1.2', port=6000, device='sdb',
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meta='', replication_ip='1.1.1.2', replication_port=6000, region=2
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), dict(
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id=3, weight=10.0, zone=3, ip='1.1.1.3', port=6000, device='sdb',
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meta='', replication_ip='1.1.1.3', replication_port=6000, region=1
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), dict(
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id=4, weight=10.0, zone=4, ip='1.1.1.4', port=6000, device='sdb',
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meta='', replication_ip='1.1.1.4', replication_port=6000, region=2
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), dict(
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id=5, weight=10.0, zone=5, ip='1.1.1.5', port=6000, device='sdb',
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meta='', replication_ip='1.1.1.5', replication_port=6000, region=1
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), dict(
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id=6, weight=10.0, zone=6, ip='1.1.1.6', port=6000, device='sdb',
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meta='', replication_ip='1.1.1.6', replication_port=6000, region=2
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)]
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def __init__(self, path, reload_time=15, ring_name=None):
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pass
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def get_part(self, account, container=None, obj=None):
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return 0
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def get_part_nodes(self, part):
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return self.devs[:3]
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def get_more_nodes(self, *args):
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return (d for d in self.devs[3:])
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class FakeProcess(object):
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def __init__(self, *codes):
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self.codes = iter(codes)
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self.args = None
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self.kwargs = None
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def __call__(self, *args, **kwargs):
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self.args = args
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self.kwargs = kwargs
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class Failure(object):
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def communicate(innerself):
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next_item = next(self.codes)
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if isinstance(next_item, int):
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innerself.returncode = next_item
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return next_item
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raise next_item
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return Failure()
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@contextmanager
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def _mock_process(*args):
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orig_process = db_replicator.subprocess.Popen
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db_replicator.subprocess.Popen = FakeProcess(*args)
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yield db_replicator.subprocess.Popen
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db_replicator.subprocess.Popen = orig_process
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class ReplHttp(object):
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def __init__(self, response=None, set_status=200):
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self.response = response
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self.set_status = set_status
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replicated = False
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host = 'localhost'
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def replicate(self, *args):
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self.replicated = True
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class Response(object):
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status = self.set_status
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data = self.response
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def read(innerself):
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return self.response
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return Response()
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class ChangingMtimesOs(object):
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def __init__(self):
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self.mtime = 0
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def __call__(self, *args, **kwargs):
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self.mtime += 1
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return self.mtime
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class FakeBroker(object):
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db_file = __file__
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get_repl_missing_table = False
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stub_replication_info = None
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db_type = 'container'
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db_contains_type = 'object'
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info = {'account': TEST_ACCOUNT_NAME, 'container': TEST_CONTAINER_NAME}
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def __init__(self, *args, **kwargs):
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self.locked = False
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return None
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@contextmanager
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def lock(self):
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self.locked = True
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yield True
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self.locked = False
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def get_sync(self, *args, **kwargs):
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return 5
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def get_syncs(self):
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return []
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def get_items_since(self, point, *args):
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if point == 0:
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return [{'ROWID': 1}]
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if point == -1:
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return [{'ROWID': 1}, {'ROWID': 2}]
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return []
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def merge_syncs(self, *args, **kwargs):
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self.args = args
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def merge_items(self, *args):
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self.args = args
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def get_replication_info(self):
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if self.get_repl_missing_table:
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raise Exception('no such table')
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info = dict(self.info)
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info.update({
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'hash': 12345,
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'delete_timestamp': 0,
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'put_timestamp': 1,
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'created_at': 1,
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'count': 0,
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})
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if self.stub_replication_info:
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info.update(self.stub_replication_info)
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return info
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def reclaim(self, item_timestamp, sync_timestamp):
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pass
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def newid(self, remote_d):
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pass
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def update_metadata(self, metadata):
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self.metadata = metadata
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def merge_timestamps(self, created_at, put_timestamp, delete_timestamp):
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self.created_at = created_at
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self.put_timestamp = put_timestamp
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self.delete_timestamp = delete_timestamp
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class FakeAccountBroker(FakeBroker):
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db_type = 'account'
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db_contains_type = 'container'
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info = {'account': TEST_ACCOUNT_NAME}
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class TestReplicator(db_replicator.Replicator):
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server_type = 'container'
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ring_file = 'container.ring.gz'
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brokerclass = FakeBroker
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datadir = DATADIR
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default_port = 1000
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class TestDBReplicator(unittest.TestCase):
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def setUp(self):
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db_replicator.ring = FakeRing()
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self.delete_db_calls = []
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self._patchers = []
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def tearDown(self):
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for patcher in self._patchers:
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patcher.stop()
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def _patch(self, patching_fn, *args, **kwargs):
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patcher = patching_fn(*args, **kwargs)
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patched_thing = patcher.start()
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self._patchers.append(patcher)
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return patched_thing
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def stub_delete_db(self, broker):
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self.delete_db_calls.append('/path/to/file')
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def test_repl_connection(self):
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node = {'replication_ip': '127.0.0.1', 'replication_port': 80,
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'device': 'sdb1'}
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conn = db_replicator.ReplConnection(node, '1234567890', 'abcdefg',
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logging.getLogger())
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def req(method, path, body, headers):
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self.assertEquals(method, 'REPLICATE')
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self.assertEquals(headers['Content-Type'], 'application/json')
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class Resp(object):
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def read(self):
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return 'data'
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resp = Resp()
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conn.request = req
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conn.getresponse = lambda *args: resp
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self.assertEquals(conn.replicate(1, 2, 3), resp)
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def other_req(method, path, body, headers):
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raise Exception('blah')
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conn.request = other_req
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self.assertEquals(conn.replicate(1, 2, 3), None)
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def test_rsync_file(self):
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replicator = TestReplicator({})
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with _mock_process(-1):
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self.assertEquals(
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False,
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replicator._rsync_file('/some/file', 'remote:/some/file'))
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with _mock_process(0):
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self.assertEquals(
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True,
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replicator._rsync_file('/some/file', 'remote:/some/file'))
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def test_rsync_file_popen_args(self):
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replicator = TestReplicator({})
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with _mock_process(0) as process:
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replicator._rsync_file('/some/file', 'remote:/some_file')
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exp_args = ([
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'rsync', '--quiet', '--no-motd',
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'--timeout=%s' % int(math.ceil(replicator.node_timeout)),
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'--contimeout=%s' % int(math.ceil(replicator.conn_timeout)),
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'--whole-file', '/some/file', 'remote:/some_file'],)
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self.assertEqual(exp_args, process.args)
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def test_rsync_file_popen_args_whole_file_false(self):
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replicator = TestReplicator({})
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with _mock_process(0) as process:
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replicator._rsync_file('/some/file', 'remote:/some_file', False)
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exp_args = ([
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'rsync', '--quiet', '--no-motd',
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'--timeout=%s' % int(math.ceil(replicator.node_timeout)),
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'--contimeout=%s' % int(math.ceil(replicator.conn_timeout)),
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'/some/file', 'remote:/some_file'],)
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self.assertEqual(exp_args, process.args)
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def test_rsync_file_popen_args_different_region_and_rsync_compress(self):
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replicator = TestReplicator({})
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for rsync_compress in (False, True):
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replicator.rsync_compress = rsync_compress
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for different_region in (False, True):
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with _mock_process(0) as process:
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replicator._rsync_file('/some/file', 'remote:/some_file',
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False, different_region)
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if rsync_compress and different_region:
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# --compress arg should be passed to rsync binary
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# only when rsync_compress option is enabled
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# AND destination node is in a different
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# region
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self.assertTrue('--compress' in process.args[0])
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else:
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self.assertFalse('--compress' in process.args[0])
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def test_rsync_db(self):
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replicator = TestReplicator({})
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replicator._rsync_file = lambda *args, **kwargs: True
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fake_device = {'replication_ip': '127.0.0.1', 'device': 'sda1'}
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replicator._rsync_db(FakeBroker(), fake_device, ReplHttp(), 'abcd')
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def test_rsync_db_rsync_file_call(self):
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fake_device = {'ip': '127.0.0.1', 'port': '0',
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'replication_ip': '127.0.0.1', 'replication_port': '0',
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'device': 'sda1'}
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class MyTestReplicator(TestReplicator):
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def __init__(self, db_file, remote_file):
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super(MyTestReplicator, self).__init__({})
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self.db_file = db_file
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self.remote_file = remote_file
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def _rsync_file(self_, db_file, remote_file, whole_file=True,
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different_region=False):
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self.assertEqual(self_.db_file, db_file)
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self.assertEqual(self_.remote_file, remote_file)
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self_._rsync_file_called = True
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return False
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broker = FakeBroker()
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remote_file = '127.0.0.1::container/sda1/tmp/abcd'
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replicator = MyTestReplicator(broker.db_file, remote_file)
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replicator._rsync_db(broker, fake_device, ReplHttp(), 'abcd')
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self.assertTrue(replicator._rsync_file_called)
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def test_rsync_db_rsync_file_failure(self):
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class MyTestReplicator(TestReplicator):
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def __init__(self):
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super(MyTestReplicator, self).__init__({})
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self._rsync_file_called = False
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def _rsync_file(self_, *args, **kwargs):
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self.assertEqual(
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False, self_._rsync_file_called,
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'_sync_file() should only be called once')
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self_._rsync_file_called = True
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return False
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with patch('os.path.exists', lambda *args: True):
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replicator = MyTestReplicator()
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fake_device = {'ip': '127.0.0.1', 'replication_ip': '127.0.0.1',
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'device': 'sda1'}
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replicator._rsync_db(FakeBroker(), fake_device, ReplHttp(), 'abcd')
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self.assertEqual(True, replicator._rsync_file_called)
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def test_rsync_db_change_after_sync(self):
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class MyTestReplicator(TestReplicator):
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def __init__(self, broker):
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super(MyTestReplicator, self).__init__({})
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self.broker = broker
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self._rsync_file_call_count = 0
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def _rsync_file(self_, db_file, remote_file, whole_file=True,
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different_region=False):
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self_._rsync_file_call_count += 1
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if self_._rsync_file_call_count == 1:
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self.assertEquals(True, whole_file)
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self.assertEquals(False, self_.broker.locked)
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elif self_._rsync_file_call_count == 2:
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self.assertEquals(False, whole_file)
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self.assertEquals(True, self_.broker.locked)
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else:
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raise RuntimeError('_rsync_file() called too many times')
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return True
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|
|
# with journal file
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with patch('os.path.exists', lambda *args: True):
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broker = FakeBroker()
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replicator = MyTestReplicator(broker)
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fake_device = {'ip': '127.0.0.1', 'replication_ip': '127.0.0.1',
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'device': 'sda1'}
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replicator._rsync_db(broker, fake_device, ReplHttp(), 'abcd')
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self.assertEquals(2, replicator._rsync_file_call_count)
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|
|
|
# with new mtime
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with patch('os.path.exists', lambda *args: False):
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with patch('os.path.getmtime', ChangingMtimesOs()):
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broker = FakeBroker()
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|
replicator = MyTestReplicator(broker)
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fake_device = {'ip': '127.0.0.1',
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'replication_ip': '127.0.0.1',
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'device': 'sda1'}
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replicator._rsync_db(broker, fake_device, ReplHttp(), 'abcd')
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self.assertEquals(2, replicator._rsync_file_call_count)
|
|
|
|
def test_in_sync(self):
|
|
replicator = TestReplicator({})
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|
self.assertEquals(replicator._in_sync(
|
|
{'id': 'a', 'point': 0, 'max_row': 0, 'hash': 'b'},
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|
{'id': 'a', 'point': -1, 'max_row': 0, 'hash': 'b'},
|
|
FakeBroker(), -1), True)
|
|
self.assertEquals(replicator._in_sync(
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|
{'id': 'a', 'point': -1, 'max_row': 0, 'hash': 'b'},
|
|
{'id': 'a', 'point': -1, 'max_row': 10, 'hash': 'b'},
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|
FakeBroker(), -1), True)
|
|
self.assertEquals(bool(replicator._in_sync(
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|
{'id': 'a', 'point': -1, 'max_row': 0, 'hash': 'c'},
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|
{'id': 'a', 'point': -1, 'max_row': 10, 'hash': 'd'},
|
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FakeBroker(), -1)), False)
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|
|
|
def test_run_once(self):
|
|
replicator = TestReplicator({})
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|
replicator.run_once()
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|
|
|
def test_run_once_no_ips(self):
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|
replicator = TestReplicator({}, logger=unit.FakeLogger())
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|
self._patch(patch.object, db_replicator, 'whataremyips',
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|
lambda *a, **kw: [])
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|
|
replicator.run_once()
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|
|
|
self.assertEqual(
|
|
replicator.logger.log_dict['error'],
|
|
[(('ERROR Failed to get my own IPs?',), {})])
|
|
|
|
def test_run_once_node_is_not_mounted(self):
|
|
db_replicator.ring = FakeRingWithSingleNode()
|
|
# If a bind_ip is specified, it's plumbed into whataremyips() and
|
|
# returned by itself.
|
|
conf = {'mount_check': 'true', 'bind_ip': '1.1.1.1', 'bind_port': 6000}
|
|
replicator = TestReplicator(conf, logger=unit.FakeLogger())
|
|
self.assertEqual(replicator.mount_check, True)
|
|
self.assertEqual(replicator.port, 6000)
|
|
|
|
def mock_ismount(path):
|
|
self.assertEquals(path,
|
|
os.path.join(replicator.root,
|
|
replicator.ring.devs[0]['device']))
|
|
return False
|
|
|
|
self._patch(patch.object, db_replicator, 'ismount', mock_ismount)
|
|
replicator.run_once()
|
|
|
|
self.assertEqual(
|
|
replicator.logger.log_dict['warning'],
|
|
[(('Skipping %(device)s as it is not mounted' %
|
|
replicator.ring.devs[0],), {})])
|
|
|
|
def test_run_once_node_is_mounted(self):
|
|
db_replicator.ring = FakeRingWithSingleNode()
|
|
conf = {'mount_check': 'true', 'bind_port': 6000}
|
|
replicator = TestReplicator(conf, logger=unit.FakeLogger())
|
|
self.assertEqual(replicator.mount_check, True)
|
|
self.assertEqual(replicator.port, 6000)
|
|
|
|
def mock_unlink_older_than(path, mtime):
|
|
self.assertEquals(path,
|
|
os.path.join(replicator.root,
|
|
replicator.ring.devs[0]['device'],
|
|
'tmp'))
|
|
self.assertTrue(time.time() - replicator.reclaim_age >= mtime)
|
|
|
|
def mock_spawn_n(fn, part, object_file, node_id):
|
|
self.assertEquals('123', part)
|
|
self.assertEquals('/srv/node/sda/c.db', object_file)
|
|
self.assertEquals(1, node_id)
|
|
|
|
self._patch(patch.object, db_replicator, 'whataremyips',
|
|
lambda *a, **kw: ['1.1.1.1'])
|
|
self._patch(patch.object, db_replicator, 'ismount', lambda *args: True)
|
|
self._patch(patch.object, db_replicator, 'unlink_older_than',
|
|
mock_unlink_older_than)
|
|
self._patch(patch.object, db_replicator, 'roundrobin_datadirs',
|
|
lambda *args: [('123', '/srv/node/sda/c.db', 1)])
|
|
self._patch(patch.object, replicator.cpool, 'spawn_n', mock_spawn_n)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.isdir.return_value = True
|
|
replicator.run_once()
|
|
mock_os.path.isdir.assert_called_with(
|
|
os.path.join(replicator.root,
|
|
replicator.ring.devs[0]['device'],
|
|
replicator.datadir))
|
|
|
|
def test_usync(self):
|
|
fake_http = ReplHttp()
|
|
replicator = TestReplicator({})
|
|
replicator._usync_db(0, FakeBroker(), fake_http, '12345', '67890')
|
|
|
|
def test_usync_http_error_above_300(self):
|
|
fake_http = ReplHttp(set_status=301)
|
|
replicator = TestReplicator({})
|
|
self.assertFalse(
|
|
replicator._usync_db(0, FakeBroker(), fake_http, '12345', '67890'))
|
|
|
|
def test_usync_http_error_below_200(self):
|
|
fake_http = ReplHttp(set_status=101)
|
|
replicator = TestReplicator({})
|
|
self.assertFalse(
|
|
replicator._usync_db(0, FakeBroker(), fake_http, '12345', '67890'))
|
|
|
|
def test_stats(self):
|
|
# I'm not sure how to test that this logs the right thing,
|
|
# but we can at least make sure it gets covered.
|
|
replicator = TestReplicator({})
|
|
replicator._zero_stats()
|
|
replicator._report_stats()
|
|
|
|
def test_replicate_object(self):
|
|
db_replicator.ring = FakeRingWithNodes()
|
|
replicator = TestReplicator({})
|
|
replicator.delete_db = self.stub_delete_db
|
|
replicator._replicate_object('0', '/path/to/file', 'node_id')
|
|
self.assertEquals([], self.delete_db_calls)
|
|
|
|
def test_replicate_object_quarantine(self):
|
|
replicator = TestReplicator({})
|
|
self._patch(patch.object, replicator.brokerclass, 'db_file',
|
|
'/a/b/c/d/e/hey')
|
|
self._patch(patch.object, replicator.brokerclass,
|
|
'get_repl_missing_table', True)
|
|
|
|
def mock_renamer(was, new, fsync=False, cause_colision=False):
|
|
if cause_colision and '-' not in new:
|
|
raise OSError(errno.EEXIST, "File already exists")
|
|
self.assertEquals('/a/b/c/d/e', was)
|
|
if '-' in new:
|
|
self.assertTrue(
|
|
new.startswith('/a/quarantined/containers/e-'))
|
|
else:
|
|
self.assertEquals('/a/quarantined/containers/e', new)
|
|
|
|
def mock_renamer_error(was, new, fsync):
|
|
return mock_renamer(was, new, fsync, cause_colision=True)
|
|
with patch.object(db_replicator, 'renamer', mock_renamer):
|
|
replicator._replicate_object('0', 'file', 'node_id')
|
|
# try the double quarantine
|
|
with patch.object(db_replicator, 'renamer', mock_renamer_error):
|
|
replicator._replicate_object('0', 'file', 'node_id')
|
|
|
|
def test_replicate_object_delete_because_deleted(self):
|
|
replicator = TestReplicator({})
|
|
try:
|
|
replicator.delete_db = self.stub_delete_db
|
|
replicator.brokerclass.stub_replication_info = {
|
|
'delete_timestamp': 2, 'put_timestamp': 1}
|
|
replicator._replicate_object('0', '/path/to/file', 'node_id')
|
|
finally:
|
|
replicator.brokerclass.stub_replication_info = None
|
|
self.assertEquals(['/path/to/file'], self.delete_db_calls)
|
|
|
|
def test_replicate_object_delete_because_not_shouldbehere(self):
|
|
replicator = TestReplicator({})
|
|
replicator.delete_db = self.stub_delete_db
|
|
replicator._replicate_object('0', '/path/to/file', 'node_id')
|
|
self.assertEquals(['/path/to/file'], self.delete_db_calls)
|
|
|
|
def test_replicate_account_out_of_place(self):
|
|
replicator = TestReplicator({}, logger=unit.FakeLogger())
|
|
replicator.ring = FakeRingWithNodes().Ring('path')
|
|
replicator.brokerclass = FakeAccountBroker
|
|
replicator._repl_to_node = lambda *args: True
|
|
replicator.delete_db = self.stub_delete_db
|
|
# Correct node_id, wrong part
|
|
part = replicator.ring.get_part(TEST_ACCOUNT_NAME) + 1
|
|
node_id = replicator.ring.get_part_nodes(part)[0]['id']
|
|
replicator._replicate_object(str(part), '/path/to/file', node_id)
|
|
self.assertEqual(['/path/to/file'], self.delete_db_calls)
|
|
error_msgs = replicator.logger.get_lines_for_level('error')
|
|
expected = 'Found /path/to/file for /a%20c%20t when it should be ' \
|
|
'on partition 0; will replicate out and remove.'
|
|
self.assertEqual(error_msgs, [expected])
|
|
|
|
def test_replicate_container_out_of_place(self):
|
|
replicator = TestReplicator({}, logger=unit.FakeLogger())
|
|
replicator.ring = FakeRingWithNodes().Ring('path')
|
|
replicator._repl_to_node = lambda *args: True
|
|
replicator.delete_db = self.stub_delete_db
|
|
# Correct node_id, wrong part
|
|
part = replicator.ring.get_part(
|
|
TEST_ACCOUNT_NAME, TEST_CONTAINER_NAME) + 1
|
|
node_id = replicator.ring.get_part_nodes(part)[0]['id']
|
|
replicator._replicate_object(str(part), '/path/to/file', node_id)
|
|
self.assertEqual(['/path/to/file'], self.delete_db_calls)
|
|
self.assertEqual(
|
|
replicator.logger.log_dict['error'],
|
|
[(('Found /path/to/file for /a%20c%20t/c%20o%20n when it should '
|
|
'be on partition 0; will replicate out and remove.',), {})])
|
|
|
|
def test_replicate_object_different_region(self):
|
|
db_replicator.ring = FakeRingWithNodes()
|
|
replicator = TestReplicator({})
|
|
replicator._repl_to_node = mock.Mock()
|
|
# For node_id = 1, one replica in same region(1) and other is in a
|
|
# different region(2). Refer: FakeRingWithNodes
|
|
replicator._replicate_object('0', '/path/to/file', 1)
|
|
# different_region was set True and passed to _repl_to_node()
|
|
self.assertEqual(replicator._repl_to_node.call_args_list[0][0][-1],
|
|
True)
|
|
# different_region was set False and passed to _repl_to_node()
|
|
self.assertEqual(replicator._repl_to_node.call_args_list[1][0][-1],
|
|
False)
|
|
|
|
def test_delete_db(self):
|
|
db_replicator.lock_parent_directory = lock_parent_directory
|
|
replicator = TestReplicator({}, logger=unit.FakeLogger())
|
|
replicator._zero_stats()
|
|
replicator.extract_device = lambda _: 'some_device'
|
|
|
|
temp_dir = mkdtemp()
|
|
try:
|
|
temp_suf_dir = os.path.join(temp_dir, '16e')
|
|
os.mkdir(temp_suf_dir)
|
|
temp_hash_dir = os.path.join(temp_suf_dir,
|
|
'166e33924a08ede4204871468c11e16e')
|
|
os.mkdir(temp_hash_dir)
|
|
temp_file = NamedTemporaryFile(dir=temp_hash_dir, delete=False)
|
|
temp_hash_dir2 = os.path.join(temp_suf_dir,
|
|
'266e33924a08ede4204871468c11e16e')
|
|
os.mkdir(temp_hash_dir2)
|
|
temp_file2 = NamedTemporaryFile(dir=temp_hash_dir2, delete=False)
|
|
|
|
# sanity-checks
|
|
self.assertTrue(os.path.exists(temp_dir))
|
|
self.assertTrue(os.path.exists(temp_suf_dir))
|
|
self.assertTrue(os.path.exists(temp_hash_dir))
|
|
self.assertTrue(os.path.exists(temp_file.name))
|
|
self.assertTrue(os.path.exists(temp_hash_dir2))
|
|
self.assertTrue(os.path.exists(temp_file2.name))
|
|
self.assertEqual(0, replicator.stats['remove'])
|
|
|
|
temp_file.db_file = temp_file.name
|
|
replicator.delete_db(temp_file)
|
|
|
|
self.assertTrue(os.path.exists(temp_dir))
|
|
self.assertTrue(os.path.exists(temp_suf_dir))
|
|
self.assertFalse(os.path.exists(temp_hash_dir))
|
|
self.assertFalse(os.path.exists(temp_file.name))
|
|
self.assertTrue(os.path.exists(temp_hash_dir2))
|
|
self.assertTrue(os.path.exists(temp_file2.name))
|
|
self.assertEqual([(('removes.some_device',), {})],
|
|
replicator.logger.log_dict['increment'])
|
|
self.assertEqual(1, replicator.stats['remove'])
|
|
|
|
temp_file2.db_file = temp_file2.name
|
|
replicator.delete_db(temp_file2)
|
|
|
|
self.assertTrue(os.path.exists(temp_dir))
|
|
self.assertFalse(os.path.exists(temp_suf_dir))
|
|
self.assertFalse(os.path.exists(temp_hash_dir))
|
|
self.assertFalse(os.path.exists(temp_file.name))
|
|
self.assertFalse(os.path.exists(temp_hash_dir2))
|
|
self.assertFalse(os.path.exists(temp_file2.name))
|
|
self.assertEqual([(('removes.some_device',), {})] * 2,
|
|
replicator.logger.log_dict['increment'])
|
|
self.assertEqual(2, replicator.stats['remove'])
|
|
finally:
|
|
rmtree(temp_dir)
|
|
|
|
def test_extract_device(self):
|
|
replicator = TestReplicator({'devices': '/some/root'})
|
|
self.assertEqual('some_device', replicator.extract_device(
|
|
'/some/root/some_device/deeper/and/deeper'))
|
|
self.assertEqual('UNKNOWN', replicator.extract_device(
|
|
'/some/foo/some_device/deeper/and/deeper'))
|
|
|
|
def test_dispatch_no_arg_pop(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
response = rpc.dispatch(('a',), 'arg')
|
|
self.assertEquals('Invalid object type', response.body)
|
|
self.assertEquals(400, response.status_int)
|
|
|
|
def test_dispatch_drive_not_mounted(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, True)
|
|
|
|
def mock_ismount(path):
|
|
self.assertEquals('/drive', path)
|
|
return False
|
|
|
|
self._patch(patch.object, db_replicator, 'ismount', mock_ismount)
|
|
|
|
response = rpc.dispatch(('drive', 'part', 'hash'), ['method'])
|
|
|
|
self.assertEquals('507 drive is not mounted', response.status)
|
|
self.assertEquals(507, response.status_int)
|
|
|
|
def test_dispatch_unexpected_operation_db_does_not_exist(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
def mock_mkdirs(path):
|
|
self.assertEquals('/drive/tmp', path)
|
|
|
|
self._patch(patch.object, db_replicator, 'mkdirs', mock_mkdirs)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.return_value = False
|
|
response = rpc.dispatch(('drive', 'part', 'hash'), ['unexpected'])
|
|
|
|
self.assertEquals('404 Not Found', response.status)
|
|
self.assertEquals(404, response.status_int)
|
|
|
|
def test_dispatch_operation_unexpected(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
self._patch(patch.object, db_replicator, 'mkdirs', lambda *args: True)
|
|
|
|
def unexpected_method(broker, args):
|
|
self.assertEquals(FakeBroker, broker.__class__)
|
|
self.assertEqual(['arg1', 'arg2'], args)
|
|
return 'unexpected-called'
|
|
|
|
rpc.unexpected = unexpected_method
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.return_value = True
|
|
response = rpc.dispatch(('drive', 'part', 'hash'),
|
|
['unexpected', 'arg1', 'arg2'])
|
|
mock_os.path.exists.assert_called_with('/part/ash/hash/hash.db')
|
|
|
|
self.assertEquals('unexpected-called', response)
|
|
|
|
def test_dispatch_operation_rsync_then_merge(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
self._patch(patch.object, db_replicator, 'renamer', lambda *args: True)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.return_value = True
|
|
response = rpc.dispatch(('drive', 'part', 'hash'),
|
|
['rsync_then_merge', 'arg1', 'arg2'])
|
|
expected_calls = [call('/part/ash/hash/hash.db'),
|
|
call('/drive/tmp/arg1')]
|
|
self.assertEquals(mock_os.path.exists.call_args_list,
|
|
expected_calls)
|
|
self.assertEquals('204 No Content', response.status)
|
|
self.assertEquals(204, response.status_int)
|
|
|
|
def test_dispatch_operation_complete_rsync(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
self._patch(patch.object, db_replicator, 'renamer', lambda *args: True)
|
|
|
|
with patch('swift.common.db_replicator.os', new=mock.MagicMock(
|
|
wraps=os)) as mock_os:
|
|
mock_os.path.exists.side_effect = [False, True]
|
|
response = rpc.dispatch(('drive', 'part', 'hash'),
|
|
['complete_rsync', 'arg1', 'arg2'])
|
|
expected_calls = [call('/part/ash/hash/hash.db'),
|
|
call('/drive/tmp/arg1')]
|
|
self.assertEquals(mock_os.path.exists.call_args_list,
|
|
expected_calls)
|
|
self.assertEquals('204 No Content', response.status)
|
|
self.assertEquals(204, response.status_int)
|
|
|
|
def test_rsync_then_merge_db_does_not_exist(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.return_value = False
|
|
response = rpc.rsync_then_merge('drive', '/data/db.db',
|
|
('arg1', 'arg2'))
|
|
mock_os.path.exists.assert_called_with('/data/db.db')
|
|
self.assertEquals('404 Not Found', response.status)
|
|
self.assertEquals(404, response.status_int)
|
|
|
|
def test_rsync_then_merge_old_does_not_exist(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.side_effect = [True, False]
|
|
response = rpc.rsync_then_merge('drive', '/data/db.db',
|
|
('arg1', 'arg2'))
|
|
expected_calls = [call('/data/db.db'), call('/drive/tmp/arg1')]
|
|
self.assertEquals(mock_os.path.exists.call_args_list,
|
|
expected_calls)
|
|
self.assertEquals('404 Not Found', response.status)
|
|
self.assertEquals(404, response.status_int)
|
|
|
|
def test_rsync_then_merge_with_objects(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
def mock_renamer(old, new):
|
|
self.assertEquals('/drive/tmp/arg1', old)
|
|
self.assertEquals('/data/db.db', new)
|
|
|
|
self._patch(patch.object, db_replicator, 'renamer', mock_renamer)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.return_value = True
|
|
response = rpc.rsync_then_merge('drive', '/data/db.db',
|
|
['arg1', 'arg2'])
|
|
self.assertEquals('204 No Content', response.status)
|
|
self.assertEquals(204, response.status_int)
|
|
|
|
def test_complete_rsync_db_does_not_exist(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.return_value = True
|
|
response = rpc.complete_rsync('drive', '/data/db.db',
|
|
['arg1', 'arg2'])
|
|
mock_os.path.exists.assert_called_with('/data/db.db')
|
|
self.assertEquals('404 Not Found', response.status)
|
|
self.assertEquals(404, response.status_int)
|
|
|
|
def test_complete_rsync_old_file_does_not_exist(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.return_value = False
|
|
response = rpc.complete_rsync('drive', '/data/db.db',
|
|
['arg1', 'arg2'])
|
|
expected_calls = [call('/data/db.db'), call('/drive/tmp/arg1')]
|
|
self.assertEquals(expected_calls,
|
|
mock_os.path.exists.call_args_list)
|
|
self.assertEquals('404 Not Found', response.status)
|
|
self.assertEquals(404, response.status_int)
|
|
|
|
def test_complete_rsync_rename(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
|
|
def mock_exists(path):
|
|
if path == '/data/db.db':
|
|
return False
|
|
self.assertEquals('/drive/tmp/arg1', path)
|
|
return True
|
|
|
|
def mock_renamer(old, new):
|
|
self.assertEquals('/drive/tmp/arg1', old)
|
|
self.assertEquals('/data/db.db', new)
|
|
|
|
self._patch(patch.object, db_replicator, 'renamer', mock_renamer)
|
|
|
|
with patch('swift.common.db_replicator.os',
|
|
new=mock.MagicMock(wraps=os)) as mock_os:
|
|
mock_os.path.exists.side_effect = [False, True]
|
|
response = rpc.complete_rsync('drive', '/data/db.db',
|
|
['arg1', 'arg2'])
|
|
self.assertEquals('204 No Content', response.status)
|
|
self.assertEquals(204, response.status_int)
|
|
|
|
def test_replicator_sync_with_broker_replication_missing_table(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
rpc.logger = unit.debug_logger()
|
|
broker = FakeBroker()
|
|
broker.get_repl_missing_table = True
|
|
|
|
called = []
|
|
|
|
def mock_quarantine_db(object_file, server_type):
|
|
called.append(True)
|
|
self.assertEquals(broker.db_file, object_file)
|
|
self.assertEquals(broker.db_type, server_type)
|
|
|
|
self._patch(patch.object, db_replicator, 'quarantine_db',
|
|
mock_quarantine_db)
|
|
|
|
response = rpc.sync(broker, ('remote_sync', 'hash_', 'id_',
|
|
'created_at', 'put_timestamp',
|
|
'delete_timestamp', 'metadata'))
|
|
|
|
self.assertEquals('404 Not Found', response.status)
|
|
self.assertEquals(404, response.status_int)
|
|
self.assertEqual(called, [True])
|
|
errors = rpc.logger.get_lines_for_level('error')
|
|
self.assertEqual(errors,
|
|
["Unable to decode remote metadata 'metadata'",
|
|
"Quarantining DB %s" % broker])
|
|
|
|
def test_replicator_sync(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
broker = FakeBroker()
|
|
|
|
response = rpc.sync(broker, (broker.get_sync() + 1, 12345, 'id_',
|
|
'created_at', 'put_timestamp',
|
|
'delete_timestamp',
|
|
'{"meta1": "data1", "meta2": "data2"}'))
|
|
|
|
self.assertEquals({'meta1': 'data1', 'meta2': 'data2'},
|
|
broker.metadata)
|
|
self.assertEquals('created_at', broker.created_at)
|
|
self.assertEquals('put_timestamp', broker.put_timestamp)
|
|
self.assertEquals('delete_timestamp', broker.delete_timestamp)
|
|
|
|
self.assertEquals('200 OK', response.status)
|
|
self.assertEquals(200, response.status_int)
|
|
|
|
def test_rsync_then_merge(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
rpc.rsync_then_merge('sda1', '/srv/swift/blah', ('a', 'b'))
|
|
|
|
def test_merge_items(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
fake_broker = FakeBroker()
|
|
args = ('a', 'b')
|
|
rpc.merge_items(fake_broker, args)
|
|
self.assertEquals(fake_broker.args, args)
|
|
|
|
def test_merge_syncs(self):
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
fake_broker = FakeBroker()
|
|
args = ('a', 'b')
|
|
rpc.merge_syncs(fake_broker, args)
|
|
self.assertEquals(fake_broker.args, (args[0],))
|
|
|
|
def test_complete_rsync_with_bad_input(self):
|
|
drive = '/some/root'
|
|
db_file = __file__
|
|
args = ['old_file']
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
resp = rpc.complete_rsync(drive, db_file, args)
|
|
self.assertTrue(isinstance(resp, HTTPException))
|
|
self.assertEquals(404, resp.status_int)
|
|
resp = rpc.complete_rsync(drive, 'new_db_file', args)
|
|
self.assertTrue(isinstance(resp, HTTPException))
|
|
self.assertEquals(404, resp.status_int)
|
|
|
|
def test_complete_rsync(self):
|
|
drive = mkdtemp()
|
|
args = ['old_file']
|
|
rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, False)
|
|
os.mkdir('%s/tmp' % drive)
|
|
old_file = '%s/tmp/old_file' % drive
|
|
new_file = '%s/new_db_file' % drive
|
|
try:
|
|
fp = open(old_file, 'w')
|
|
fp.write('void')
|
|
fp.close
|
|
resp = rpc.complete_rsync(drive, new_file, args)
|
|
self.assertEquals(204, resp.status_int)
|
|
finally:
|
|
rmtree(drive)
|
|
|
|
def test_roundrobin_datadirs(self):
|
|
listdir_calls = []
|
|
isdir_calls = []
|
|
exists_calls = []
|
|
shuffle_calls = []
|
|
rmdir_calls = []
|
|
|
|
def _listdir(path):
|
|
listdir_calls.append(path)
|
|
if not path.startswith('/srv/node/sda/containers') and \
|
|
not path.startswith('/srv/node/sdb/containers'):
|
|
return []
|
|
path = path[len('/srv/node/sdx/containers'):]
|
|
if path == '':
|
|
return ['123', '456', '789', '9999']
|
|
# 456 will pretend to be a file
|
|
# 9999 will be an empty partition with no contents
|
|
elif path == '/123':
|
|
return ['abc', 'def.db'] # def.db will pretend to be a file
|
|
elif path == '/123/abc':
|
|
# 11111111111111111111111111111abc will pretend to be a file
|
|
return ['00000000000000000000000000000abc',
|
|
'11111111111111111111111111111abc']
|
|
elif path == '/123/abc/00000000000000000000000000000abc':
|
|
return ['00000000000000000000000000000abc.db',
|
|
# This other.db isn't in the right place, so should be
|
|
# ignored later.
|
|
'000000000000000000000000000other.db',
|
|
'weird1'] # weird1 will pretend to be a dir, if asked
|
|
elif path == '/789':
|
|
return ['ghi', 'jkl'] # jkl will pretend to be a file
|
|
elif path == '/789/ghi':
|
|
# 33333333333333333333333333333ghi will pretend to be a file
|
|
return ['22222222222222222222222222222ghi',
|
|
'33333333333333333333333333333ghi']
|
|
elif path == '/789/ghi/22222222222222222222222222222ghi':
|
|
return ['22222222222222222222222222222ghi.db',
|
|
'weird2'] # weird2 will pretend to be a dir, if asked
|
|
elif path == '9999':
|
|
return []
|
|
return []
|
|
|
|
def _isdir(path):
|
|
isdir_calls.append(path)
|
|
if not path.startswith('/srv/node/sda/containers') and \
|
|
not path.startswith('/srv/node/sdb/containers'):
|
|
return False
|
|
path = path[len('/srv/node/sdx/containers'):]
|
|
if path in ('/123', '/123/abc',
|
|
'/123/abc/00000000000000000000000000000abc',
|
|
'/123/abc/00000000000000000000000000000abc/weird1',
|
|
'/789', '/789/ghi',
|
|
'/789/ghi/22222222222222222222222222222ghi',
|
|
'/789/ghi/22222222222222222222222222222ghi/weird2',
|
|
'/9999'):
|
|
return True
|
|
return False
|
|
|
|
def _exists(arg):
|
|
exists_calls.append(arg)
|
|
return True
|
|
|
|
def _shuffle(arg):
|
|
shuffle_calls.append(arg)
|
|
|
|
def _rmdir(arg):
|
|
rmdir_calls.append(arg)
|
|
|
|
orig_listdir = db_replicator.os.listdir
|
|
orig_isdir = db_replicator.os.path.isdir
|
|
orig_exists = db_replicator.os.path.exists
|
|
orig_shuffle = db_replicator.random.shuffle
|
|
orig_rmdir = db_replicator.os.rmdir
|
|
|
|
try:
|
|
db_replicator.os.listdir = _listdir
|
|
db_replicator.os.path.isdir = _isdir
|
|
db_replicator.os.path.exists = _exists
|
|
db_replicator.random.shuffle = _shuffle
|
|
db_replicator.os.rmdir = _rmdir
|
|
|
|
datadirs = [('/srv/node/sda/containers', 1),
|
|
('/srv/node/sdb/containers', 2)]
|
|
results = list(db_replicator.roundrobin_datadirs(datadirs))
|
|
# The results show that the .db files are returned, the devices
|
|
# interleaved.
|
|
self.assertEquals(results, [
|
|
('123', '/srv/node/sda/containers/123/abc/'
|
|
'00000000000000000000000000000abc/'
|
|
'00000000000000000000000000000abc.db', 1),
|
|
('123', '/srv/node/sdb/containers/123/abc/'
|
|
'00000000000000000000000000000abc/'
|
|
'00000000000000000000000000000abc.db', 2),
|
|
('789', '/srv/node/sda/containers/789/ghi/'
|
|
'22222222222222222222222222222ghi/'
|
|
'22222222222222222222222222222ghi.db', 1),
|
|
('789', '/srv/node/sdb/containers/789/ghi/'
|
|
'22222222222222222222222222222ghi/'
|
|
'22222222222222222222222222222ghi.db', 2)])
|
|
# The listdir calls show that we only listdir the dirs
|
|
self.assertEquals(listdir_calls, [
|
|
'/srv/node/sda/containers',
|
|
'/srv/node/sda/containers/123',
|
|
'/srv/node/sda/containers/123/abc',
|
|
'/srv/node/sdb/containers',
|
|
'/srv/node/sdb/containers/123',
|
|
'/srv/node/sdb/containers/123/abc',
|
|
'/srv/node/sda/containers/789',
|
|
'/srv/node/sda/containers/789/ghi',
|
|
'/srv/node/sdb/containers/789',
|
|
'/srv/node/sdb/containers/789/ghi',
|
|
'/srv/node/sda/containers/9999',
|
|
'/srv/node/sdb/containers/9999'])
|
|
# The isdir calls show that we did ask about the things pretending
|
|
# to be files at various levels.
|
|
self.assertEquals(isdir_calls, [
|
|
'/srv/node/sda/containers/123',
|
|
'/srv/node/sda/containers/123/abc',
|
|
('/srv/node/sda/containers/123/abc/'
|
|
'00000000000000000000000000000abc'),
|
|
'/srv/node/sdb/containers/123',
|
|
'/srv/node/sdb/containers/123/abc',
|
|
('/srv/node/sdb/containers/123/abc/'
|
|
'00000000000000000000000000000abc'),
|
|
('/srv/node/sda/containers/123/abc/'
|
|
'11111111111111111111111111111abc'),
|
|
'/srv/node/sda/containers/123/def.db',
|
|
'/srv/node/sda/containers/456',
|
|
'/srv/node/sda/containers/789',
|
|
'/srv/node/sda/containers/789/ghi',
|
|
('/srv/node/sda/containers/789/ghi/'
|
|
'22222222222222222222222222222ghi'),
|
|
('/srv/node/sdb/containers/123/abc/'
|
|
'11111111111111111111111111111abc'),
|
|
'/srv/node/sdb/containers/123/def.db',
|
|
'/srv/node/sdb/containers/456',
|
|
'/srv/node/sdb/containers/789',
|
|
'/srv/node/sdb/containers/789/ghi',
|
|
('/srv/node/sdb/containers/789/ghi/'
|
|
'22222222222222222222222222222ghi'),
|
|
('/srv/node/sda/containers/789/ghi/'
|
|
'33333333333333333333333333333ghi'),
|
|
'/srv/node/sda/containers/789/jkl',
|
|
'/srv/node/sda/containers/9999',
|
|
('/srv/node/sdb/containers/789/ghi/'
|
|
'33333333333333333333333333333ghi'),
|
|
'/srv/node/sdb/containers/789/jkl',
|
|
'/srv/node/sdb/containers/9999'])
|
|
# The exists calls are the .db files we looked for as we walked the
|
|
# structure.
|
|
self.assertEquals(exists_calls, [
|
|
('/srv/node/sda/containers/123/abc/'
|
|
'00000000000000000000000000000abc/'
|
|
'00000000000000000000000000000abc.db'),
|
|
('/srv/node/sdb/containers/123/abc/'
|
|
'00000000000000000000000000000abc/'
|
|
'00000000000000000000000000000abc.db'),
|
|
('/srv/node/sda/containers/789/ghi/'
|
|
'22222222222222222222222222222ghi/'
|
|
'22222222222222222222222222222ghi.db'),
|
|
('/srv/node/sdb/containers/789/ghi/'
|
|
'22222222222222222222222222222ghi/'
|
|
'22222222222222222222222222222ghi.db')])
|
|
# Shows that we called shuffle twice, once for each device.
|
|
self.assertEquals(
|
|
shuffle_calls, [['123', '456', '789', '9999'],
|
|
['123', '456', '789', '9999']])
|
|
|
|
# Shows that we called removed the two empty partition directories.
|
|
self.assertEquals(
|
|
rmdir_calls, ['/srv/node/sda/containers/9999',
|
|
'/srv/node/sdb/containers/9999'])
|
|
finally:
|
|
db_replicator.os.listdir = orig_listdir
|
|
db_replicator.os.path.isdir = orig_isdir
|
|
db_replicator.os.path.exists = orig_exists
|
|
db_replicator.random.shuffle = orig_shuffle
|
|
db_replicator.os.rmdir = orig_rmdir
|
|
|
|
@mock.patch("swift.common.db_replicator.ReplConnection", mock.Mock())
|
|
def test_http_connect(self):
|
|
node = "node"
|
|
partition = "partition"
|
|
db_file = __file__
|
|
replicator = TestReplicator({})
|
|
replicator._http_connect(node, partition, db_file)
|
|
db_replicator.ReplConnection.assert_has_calls([
|
|
mock.call(node, partition,
|
|
os.path.basename(db_file).split('.', 1)[0],
|
|
replicator.logger)])
|
|
|
|
|
|
class TestReplToNode(unittest.TestCase):
|
|
def setUp(self):
|
|
db_replicator.ring = FakeRing()
|
|
self.delete_db_calls = []
|
|
self.broker = FakeBroker()
|
|
self.replicator = TestReplicator({})
|
|
self.fake_node = {'ip': '127.0.0.1', 'device': 'sda1', 'port': 1000}
|
|
self.fake_info = {'id': 'a', 'point': -1, 'max_row': 10, 'hash': 'b',
|
|
'created_at': 100, 'put_timestamp': 0,
|
|
'delete_timestamp': 0, 'count': 0,
|
|
'metadata': {
|
|
'Test': ('Value', normalize_timestamp(1))}}
|
|
self.replicator.logger = mock.Mock()
|
|
self.replicator._rsync_db = mock.Mock(return_value=True)
|
|
self.replicator._usync_db = mock.Mock(return_value=True)
|
|
self.http = ReplHttp('{"id": 3, "point": -1}')
|
|
self.replicator._http_connect = lambda *args: self.http
|
|
|
|
def test_repl_to_node_usync_success(self):
|
|
rinfo = {"id": 3, "point": -1, "max_row": 5, "hash": "c"}
|
|
self.http = ReplHttp(simplejson.dumps(rinfo))
|
|
local_sync = self.broker.get_sync()
|
|
self.assertEquals(self.replicator._repl_to_node(
|
|
self.fake_node, self.broker, '0', self.fake_info), True)
|
|
self.replicator._usync_db.assert_has_calls([
|
|
mock.call(max(rinfo['point'], local_sync), self.broker,
|
|
self.http, rinfo['id'], self.fake_info['id'])
|
|
])
|
|
|
|
def test_repl_to_node_rsync_success(self):
|
|
rinfo = {"id": 3, "point": -1, "max_row": 4, "hash": "c"}
|
|
self.http = ReplHttp(simplejson.dumps(rinfo))
|
|
self.broker.get_sync()
|
|
self.assertEquals(self.replicator._repl_to_node(
|
|
self.fake_node, self.broker, '0', self.fake_info), True)
|
|
self.replicator.logger.increment.assert_has_calls([
|
|
mock.call.increment('remote_merges')
|
|
])
|
|
self.replicator._rsync_db.assert_has_calls([
|
|
mock.call(self.broker, self.fake_node, self.http,
|
|
self.fake_info['id'],
|
|
replicate_method='rsync_then_merge',
|
|
replicate_timeout=(self.fake_info['count'] / 2000),
|
|
different_region=False)
|
|
])
|
|
|
|
def test_repl_to_node_already_in_sync(self):
|
|
rinfo = {"id": 3, "point": -1, "max_row": 10, "hash": "b"}
|
|
self.http = ReplHttp(simplejson.dumps(rinfo))
|
|
self.broker.get_sync()
|
|
self.assertEquals(self.replicator._repl_to_node(
|
|
self.fake_node, self.broker, '0', self.fake_info), True)
|
|
self.assertEquals(self.replicator._rsync_db.call_count, 0)
|
|
self.assertEquals(self.replicator._usync_db.call_count, 0)
|
|
|
|
def test_repl_to_node_not_found(self):
|
|
self.http = ReplHttp('{"id": 3, "point": -1}', set_status=404)
|
|
self.assertEquals(self.replicator._repl_to_node(
|
|
self.fake_node, self.broker, '0', self.fake_info, False), True)
|
|
self.replicator.logger.increment.assert_has_calls([
|
|
mock.call.increment('rsyncs')
|
|
])
|
|
self.replicator._rsync_db.assert_has_calls([
|
|
mock.call(self.broker, self.fake_node, self.http,
|
|
self.fake_info['id'], different_region=False)
|
|
])
|
|
|
|
def test_repl_to_node_drive_not_mounted(self):
|
|
self.http = ReplHttp('{"id": 3, "point": -1}', set_status=507)
|
|
|
|
self.assertRaises(DriveNotMounted, self.replicator._repl_to_node,
|
|
self.fake_node, FakeBroker(), '0', self.fake_info)
|
|
|
|
def test_repl_to_node_300_status(self):
|
|
self.http = ReplHttp('{"id": 3, "point": -1}', set_status=300)
|
|
|
|
self.assertEquals(self.replicator._repl_to_node(
|
|
self.fake_node, FakeBroker(), '0', self.fake_info), None)
|
|
|
|
def test_repl_to_node_not_response(self):
|
|
self.http = mock.Mock(replicate=mock.Mock(return_value=None))
|
|
self.assertEquals(self.replicator._repl_to_node(
|
|
self.fake_node, FakeBroker(), '0', self.fake_info), False)
|
|
|
|
|
|
class FakeHTTPResponse(object):
|
|
|
|
def __init__(self, resp):
|
|
self.resp = resp
|
|
|
|
@property
|
|
def status(self):
|
|
return self.resp.status_int
|
|
|
|
@property
|
|
def data(self):
|
|
return self.resp.body
|
|
|
|
|
|
def attach_fake_replication_rpc(rpc, replicate_hook=None):
|
|
class FakeReplConnection(object):
|
|
|
|
def __init__(self, node, partition, hash_, logger):
|
|
self.logger = logger
|
|
self.node = node
|
|
self.partition = partition
|
|
self.path = '/%s/%s/%s' % (node['device'], partition, hash_)
|
|
self.host = node['replication_ip']
|
|
|
|
def replicate(self, op, *sync_args):
|
|
print('REPLICATE: %s, %s, %r' % (self.path, op, sync_args))
|
|
replicate_args = self.path.lstrip('/').split('/')
|
|
args = [op] + list(sync_args)
|
|
swob_response = rpc.dispatch(replicate_args, args)
|
|
resp = FakeHTTPResponse(swob_response)
|
|
if replicate_hook:
|
|
replicate_hook(op, *sync_args)
|
|
return resp
|
|
|
|
return FakeReplConnection
|
|
|
|
|
|
class ExampleReplicator(db_replicator.Replicator):
|
|
server_type = 'fake'
|
|
brokerclass = ExampleBroker
|
|
datadir = 'fake'
|
|
default_port = 1000
|
|
|
|
|
|
class TestReplicatorSync(unittest.TestCase):
|
|
|
|
# override in subclass
|
|
backend = ExampleReplicator.brokerclass
|
|
datadir = ExampleReplicator.datadir
|
|
replicator_daemon = ExampleReplicator
|
|
replicator_rpc = db_replicator.ReplicatorRpc
|
|
|
|
def setUp(self):
|
|
self.root = mkdtemp()
|
|
self.rpc = self.replicator_rpc(
|
|
self.root, self.datadir, self.backend, False,
|
|
logger=unit.debug_logger())
|
|
FakeReplConnection = attach_fake_replication_rpc(self.rpc)
|
|
self._orig_ReplConnection = db_replicator.ReplConnection
|
|
db_replicator.ReplConnection = FakeReplConnection
|
|
self._orig_Ring = db_replicator.ring.Ring
|
|
self._ring = unit.FakeRing()
|
|
db_replicator.ring.Ring = lambda *args, **kwargs: self._get_ring()
|
|
self.logger = unit.debug_logger()
|
|
|
|
def tearDown(self):
|
|
db_replicator.ReplConnection = self._orig_ReplConnection
|
|
db_replicator.ring.Ring = self._orig_Ring
|
|
rmtree(self.root)
|
|
|
|
def _get_ring(self):
|
|
return self._ring
|
|
|
|
def _get_broker(self, account, container=None, node_index=0):
|
|
hash_ = hash_path(account, container)
|
|
part, nodes = self._ring.get_nodes(account, container)
|
|
drive = nodes[node_index]['device']
|
|
db_path = os.path.join(self.root, drive,
|
|
storage_directory(self.datadir, part, hash_),
|
|
hash_ + '.db')
|
|
return self.backend(db_path, account=account, container=container)
|
|
|
|
def _get_broker_part_node(self, broker):
|
|
part, nodes = self._ring.get_nodes(broker.account, broker.container)
|
|
storage_dir = broker.db_file[len(self.root):].lstrip(os.path.sep)
|
|
broker_device = storage_dir.split(os.path.sep, 1)[0]
|
|
for node in nodes:
|
|
if node['device'] == broker_device:
|
|
return part, node
|
|
|
|
def _get_daemon(self, node, conf_updates):
|
|
conf = {
|
|
'devices': self.root,
|
|
'recon_cache_path': self.root,
|
|
'mount_check': 'false',
|
|
'bind_port': node['replication_port'],
|
|
}
|
|
if conf_updates:
|
|
conf.update(conf_updates)
|
|
return self.replicator_daemon(conf, logger=self.logger)
|
|
|
|
def _run_once(self, node, conf_updates=None, daemon=None):
|
|
daemon = daemon or self._get_daemon(node, conf_updates)
|
|
|
|
def _rsync_file(db_file, remote_file, **kwargs):
|
|
remote_server, remote_path = remote_file.split('/', 1)
|
|
dest_path = os.path.join(self.root, remote_path)
|
|
copy(db_file, dest_path)
|
|
return True
|
|
daemon._rsync_file = _rsync_file
|
|
with mock.patch('swift.common.db_replicator.whataremyips',
|
|
new=lambda *a, **kw: [node['replication_ip']]):
|
|
daemon.run_once()
|
|
return daemon
|
|
|
|
def test_local_ids(self):
|
|
for drive in ('sda', 'sdb', 'sdd'):
|
|
os.makedirs(os.path.join(self.root, drive, self.datadir))
|
|
for node in self._ring.devs:
|
|
daemon = self._run_once(node)
|
|
if node['device'] == 'sdc':
|
|
self.assertEqual(daemon._local_device_ids, set())
|
|
else:
|
|
self.assertEqual(daemon._local_device_ids,
|
|
set([node['id']]))
|
|
|
|
def test_clean_up_after_deleted_brokers(self):
|
|
broker = self._get_broker('a', 'c', node_index=0)
|
|
part, node = self._get_broker_part_node(broker)
|
|
part = str(part)
|
|
daemon = self._run_once(node)
|
|
# create a super old broker and delete it!
|
|
forever_ago = time.time() - daemon.reclaim_age
|
|
put_timestamp = normalize_timestamp(forever_ago - 2)
|
|
delete_timestamp = normalize_timestamp(forever_ago - 1)
|
|
broker.initialize(put_timestamp)
|
|
broker.delete_db(delete_timestamp)
|
|
# if we have a container broker make sure it's reported
|
|
if hasattr(broker, 'reported'):
|
|
info = broker.get_info()
|
|
broker.reported(info['put_timestamp'],
|
|
info['delete_timestamp'],
|
|
info['object_count'],
|
|
info['bytes_used'])
|
|
info = broker.get_replication_info()
|
|
self.assertTrue(daemon.report_up_to_date(info))
|
|
# we have a part dir
|
|
part_root = os.path.join(self.root, node['device'], self.datadir)
|
|
parts = os.listdir(part_root)
|
|
self.assertEqual([part], parts)
|
|
# with a single suffix
|
|
suff = os.listdir(os.path.join(part_root, part))
|
|
self.assertEqual(1, len(suff))
|
|
# running replicator will remove the deleted db
|
|
daemon = self._run_once(node, daemon=daemon)
|
|
self.assertEqual(1, daemon.stats['remove'])
|
|
# we still have a part dir (but it's empty)
|
|
suff = os.listdir(os.path.join(part_root, part))
|
|
self.assertEqual(0, len(suff))
|
|
# run it again and there's nothing to do...
|
|
daemon = self._run_once(node, daemon=daemon)
|
|
self.assertEqual(0, daemon.stats['attempted'])
|
|
# but empty part dir is cleaned up!
|
|
parts = os.listdir(part_root)
|
|
self.assertEqual(0, len(parts))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|