1457 lines
56 KiB
Python
1457 lines
56 KiB
Python
# 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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""" Tests for swift.common.storage_policies """
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import contextlib
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import six
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import logging
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import unittest
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import os
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import mock
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from functools import partial
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from six.moves.configparser import ConfigParser
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from tempfile import NamedTemporaryFile
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from test.unit import patch_policies, FakeRing, temptree, DEFAULT_TEST_EC_TYPE
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import swift.common.storage_policy
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from swift.common.storage_policy import (
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StoragePolicyCollection, POLICIES, PolicyError, parse_storage_policies,
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reload_storage_policies, get_policy_string, split_policy_string,
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BaseStoragePolicy, StoragePolicy, ECStoragePolicy, REPL_POLICY, EC_POLICY,
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VALID_EC_TYPES, DEFAULT_EC_OBJECT_SEGMENT_SIZE, BindPortsCache)
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from swift.common.ring import RingData
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from swift.common.exceptions import RingLoadError
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from pyeclib.ec_iface import ECDriver
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class CapturingHandler(logging.Handler):
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def __init__(self):
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super(CapturingHandler, self).__init__()
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self._records = []
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def emit(self, record):
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self._records.append(record)
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@contextlib.contextmanager
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def capture_logging(log_name):
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captured = CapturingHandler()
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logger = logging.getLogger(log_name)
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logger.addHandler(captured)
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try:
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yield captured._records
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finally:
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logger.removeHandler(captured)
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@BaseStoragePolicy.register('fake')
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class FakeStoragePolicy(BaseStoragePolicy):
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"""
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Test StoragePolicy class - the only user at the moment is
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test_validate_policies_type_invalid()
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"""
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def __init__(self, idx, name='', is_default=False, is_deprecated=False,
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object_ring=None):
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super(FakeStoragePolicy, self).__init__(
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idx, name, is_default, is_deprecated, object_ring)
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class TestStoragePolicies(unittest.TestCase):
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def _conf(self, conf_str):
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conf_str = "\n".join(line.strip() for line in conf_str.split("\n"))
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if six.PY2:
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conf = ConfigParser()
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else:
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conf = ConfigParser(strict=False)
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conf.readfp(six.StringIO(conf_str))
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return conf
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def assertRaisesWithMessage(self, exc_class, message, f, *args, **kwargs):
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try:
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f(*args, **kwargs)
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except exc_class as err:
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err_msg = str(err)
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self.assertTrue(message in err_msg, 'Error message %r did not '
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'have expected substring %r' % (err_msg, message))
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else:
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self.fail('%r did not raise %s' % (message, exc_class.__name__))
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def test_policy_baseclass_instantiate(self):
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self.assertRaisesWithMessage(TypeError,
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"Can't instantiate BaseStoragePolicy",
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BaseStoragePolicy, 1, 'one')
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@patch_policies([
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StoragePolicy(0, 'zero', is_default=True),
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StoragePolicy(1, 'one'),
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StoragePolicy(2, 'two'),
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StoragePolicy(3, 'three', is_deprecated=True),
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ECStoragePolicy(10, 'ten', ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=10, ec_nparity=4),
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])
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def test_swift_info(self):
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# the deprecated 'three' should not exist in expect
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expect = [{'aliases': 'zero', 'default': True, 'name': 'zero', },
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{'aliases': 'two', 'name': 'two'},
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{'aliases': 'one', 'name': 'one'},
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{'aliases': 'ten', 'name': 'ten'}]
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swift_info = POLICIES.get_policy_info()
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self.assertEqual(sorted(expect, key=lambda k: k['name']),
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sorted(swift_info, key=lambda k: k['name']))
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@patch_policies
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def test_get_policy_string(self):
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self.assertEqual(get_policy_string('something', 0), 'something')
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self.assertEqual(get_policy_string('something', None), 'something')
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self.assertEqual(get_policy_string('something', ''), 'something')
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self.assertEqual(get_policy_string('something', 1),
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'something' + '-1')
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self.assertRaises(PolicyError, get_policy_string, 'something', 99)
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@patch_policies
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def test_split_policy_string(self):
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expectations = {
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'something': ('something', POLICIES[0]),
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'something-1': ('something', POLICIES[1]),
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'tmp': ('tmp', POLICIES[0]),
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'objects': ('objects', POLICIES[0]),
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'tmp-1': ('tmp', POLICIES[1]),
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'objects-1': ('objects', POLICIES[1]),
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'objects-': PolicyError,
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'objects-0': PolicyError,
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'objects--1': ('objects-', POLICIES[1]),
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'objects-+1': PolicyError,
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'objects--': PolicyError,
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'objects-foo': PolicyError,
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'objects--bar': PolicyError,
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'objects-+bar': PolicyError,
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# questionable, demonstrated as inverse of get_policy_string
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'objects+0': ('objects+0', POLICIES[0]),
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'': ('', POLICIES[0]),
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'0': ('0', POLICIES[0]),
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'-1': ('', POLICIES[1]),
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}
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for policy_string, expected in expectations.items():
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if expected == PolicyError:
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try:
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invalid = split_policy_string(policy_string)
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except PolicyError:
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continue # good
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else:
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self.fail('The string %r returned %r '
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'instead of raising a PolicyError' %
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(policy_string, invalid))
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self.assertEqual(expected, split_policy_string(policy_string))
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# should be inverse of get_policy_string
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self.assertEqual(policy_string, get_policy_string(*expected))
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def test_defaults(self):
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self.assertGreater(len(POLICIES), 0)
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# test class functions
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default_policy = POLICIES.default
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self.assertTrue(default_policy.is_default)
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zero_policy = POLICIES.get_by_index(0)
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self.assertTrue(zero_policy.idx == 0)
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zero_policy_by_name = POLICIES.get_by_name(zero_policy.name)
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self.assertTrue(zero_policy_by_name.idx == 0)
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def test_storage_policy_repr(self):
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test_policies = [StoragePolicy(0, 'aay', True),
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StoragePolicy(1, 'bee', False),
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StoragePolicy(2, 'cee', False),
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ECStoragePolicy(10, 'ten',
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ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=10, ec_nparity=3),
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ECStoragePolicy(11, 'eleven',
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ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=10, ec_nparity=3,
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ec_duplication_factor=2)]
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policies = StoragePolicyCollection(test_policies)
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for policy in policies:
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policy_repr = repr(policy)
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self.assertTrue(policy.__class__.__name__ in policy_repr)
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self.assertTrue('is_default=%s' % policy.is_default in policy_repr)
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self.assertTrue('is_deprecated=%s' % policy.is_deprecated in
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policy_repr)
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self.assertTrue(policy.name in policy_repr)
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if policy.policy_type == EC_POLICY:
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self.assertTrue('ec_type=%s' % policy.ec_type in policy_repr)
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self.assertTrue('ec_ndata=%s' % policy.ec_ndata in policy_repr)
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self.assertTrue('ec_nparity=%s' %
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policy.ec_nparity in policy_repr)
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self.assertTrue('ec_segment_size=%s' %
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policy.ec_segment_size in policy_repr)
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if policy.ec_duplication_factor > 1:
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self.assertTrue('ec_duplication_factor=%s' %
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policy.ec_duplication_factor in
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policy_repr)
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collection_repr = repr(policies)
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collection_repr_lines = collection_repr.splitlines()
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self.assertTrue(
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policies.__class__.__name__ in collection_repr_lines[0])
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self.assertEqual(len(policies), len(collection_repr_lines[1:-1]))
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for policy, line in zip(policies, collection_repr_lines[1:-1]):
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self.assertTrue(repr(policy) in line)
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with patch_policies(policies):
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self.assertEqual(repr(POLICIES), collection_repr)
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def test_validate_policies_defaults(self):
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# 0 explicit default
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test_policies = [StoragePolicy(0, 'zero', True),
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StoragePolicy(1, 'one', False),
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StoragePolicy(2, 'two', False)]
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policies = StoragePolicyCollection(test_policies)
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self.assertEqual(policies.default, test_policies[0])
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self.assertEqual(policies.default.name, 'zero')
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# non-zero explicit default
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test_policies = [StoragePolicy(0, 'zero', False),
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StoragePolicy(1, 'one', False),
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StoragePolicy(2, 'two', True)]
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policies = StoragePolicyCollection(test_policies)
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self.assertEqual(policies.default, test_policies[2])
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self.assertEqual(policies.default.name, 'two')
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# multiple defaults
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test_policies = [StoragePolicy(0, 'zero', False),
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StoragePolicy(1, 'one', True),
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StoragePolicy(2, 'two', True)]
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self.assertRaisesWithMessage(
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PolicyError, 'Duplicate default', StoragePolicyCollection,
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test_policies)
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# nothing specified
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test_policies = []
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policies = StoragePolicyCollection(test_policies)
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self.assertEqual(policies.default, policies[0])
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self.assertEqual(policies.default.name, 'Policy-0')
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# no default specified with only policy index 0
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test_policies = [StoragePolicy(0, 'zero')]
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policies = StoragePolicyCollection(test_policies)
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self.assertEqual(policies.default, policies[0])
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# no default specified with multiple policies
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test_policies = [StoragePolicy(0, 'zero', False),
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StoragePolicy(1, 'one', False),
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StoragePolicy(2, 'two', False)]
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self.assertRaisesWithMessage(
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PolicyError, 'Unable to find default policy',
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StoragePolicyCollection, test_policies)
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def test_deprecate_policies(self):
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# deprecation specified
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test_policies = [StoragePolicy(0, 'zero', True),
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StoragePolicy(1, 'one', False),
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StoragePolicy(2, 'two', False, is_deprecated=True)]
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policies = StoragePolicyCollection(test_policies)
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self.assertEqual(policies.default, test_policies[0])
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self.assertEqual(policies.default.name, 'zero')
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self.assertEqual(len(policies), 3)
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# multiple policies requires default
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test_policies = [StoragePolicy(0, 'zero', False),
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StoragePolicy(1, 'one', False, is_deprecated=True),
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StoragePolicy(2, 'two', False)]
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self.assertRaisesWithMessage(
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PolicyError, 'Unable to find default policy',
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StoragePolicyCollection, test_policies)
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def test_validate_policies_indexes(self):
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# duplicate indexes
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test_policies = [StoragePolicy(0, 'zero', True),
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StoragePolicy(1, 'one', False),
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StoragePolicy(1, 'two', False)]
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self.assertRaises(PolicyError, StoragePolicyCollection,
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test_policies)
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def test_validate_policy_params(self):
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StoragePolicy(0, 'name') # sanity
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# bogus indexes
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self.assertRaises(PolicyError, FakeStoragePolicy, 'x', 'name')
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self.assertRaises(PolicyError, FakeStoragePolicy, -1, 'name')
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# non-zero Policy-0
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self.assertRaisesWithMessage(PolicyError, 'reserved',
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FakeStoragePolicy, 1, 'policy-0')
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# deprecate default
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self.assertRaisesWithMessage(
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PolicyError, 'Deprecated policy can not be default',
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FakeStoragePolicy, 1, 'Policy-1', is_default=True,
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is_deprecated=True)
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# weird names
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names = (
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'',
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'name_foo',
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'name\nfoo',
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'name foo',
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u'name \u062a',
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'name \xd8\xaa',
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)
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for name in names:
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self.assertRaisesWithMessage(PolicyError, 'Invalid name',
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FakeStoragePolicy, 1, name)
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def test_validate_policies_names(self):
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# duplicate names
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test_policies = [StoragePolicy(0, 'zero', True),
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StoragePolicy(1, 'zero', False),
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StoragePolicy(2, 'two', False)]
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self.assertRaises(PolicyError, StoragePolicyCollection,
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test_policies)
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def test_validate_policies_type_default(self):
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# no type specified - make sure the policy is initialized to
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# DEFAULT_POLICY_TYPE
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test_policy = FakeStoragePolicy(0, 'zero', True)
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self.assertEqual(test_policy.policy_type, 'fake')
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def test_validate_policies_type_invalid(self):
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class BogusStoragePolicy(FakeStoragePolicy):
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policy_type = 'bogus'
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# unsupported policy type - initialization with FakeStoragePolicy
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self.assertRaisesWithMessage(PolicyError, 'Invalid type',
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BogusStoragePolicy, 1, 'one')
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def test_policies_type_attribute(self):
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test_policies = [
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StoragePolicy(0, 'zero', is_default=True),
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StoragePolicy(1, 'one'),
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StoragePolicy(2, 'two'),
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StoragePolicy(3, 'three', is_deprecated=True),
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ECStoragePolicy(10, 'ten', ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=10, ec_nparity=3),
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]
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policies = StoragePolicyCollection(test_policies)
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self.assertEqual(policies.get_by_index(0).policy_type,
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REPL_POLICY)
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self.assertEqual(policies.get_by_index(1).policy_type,
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REPL_POLICY)
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self.assertEqual(policies.get_by_index(2).policy_type,
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REPL_POLICY)
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self.assertEqual(policies.get_by_index(3).policy_type,
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REPL_POLICY)
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self.assertEqual(policies.get_by_index(10).policy_type,
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EC_POLICY)
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def test_names_are_normalized(self):
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test_policies = [StoragePolicy(0, 'zero', True),
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StoragePolicy(1, 'ZERO', False)]
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self.assertRaises(PolicyError, StoragePolicyCollection,
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test_policies)
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policies = StoragePolicyCollection([StoragePolicy(0, 'zEro', True),
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StoragePolicy(1, 'One', False)])
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pol0 = policies[0]
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pol1 = policies[1]
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for name in ('zero', 'ZERO', 'zErO', 'ZeRo'):
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self.assertEqual(pol0, policies.get_by_name(name))
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self.assertEqual(policies.get_by_name(name).name, 'zEro')
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for name in ('one', 'ONE', 'oNe', 'OnE'):
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self.assertEqual(pol1, policies.get_by_name(name))
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self.assertEqual(policies.get_by_name(name).name, 'One')
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def test_multiple_names(self):
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# checking duplicate on insert
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test_policies = [StoragePolicy(0, 'zero', True),
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StoragePolicy(1, 'one', False, aliases='zero')]
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self.assertRaises(PolicyError, StoragePolicyCollection,
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test_policies)
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# checking correct retrival using other names
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test_policies = [StoragePolicy(0, 'zero', True, aliases='cero, kore'),
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StoragePolicy(1, 'one', False, aliases='uno, tahi'),
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StoragePolicy(2, 'two', False, aliases='dos, rua')]
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policies = StoragePolicyCollection(test_policies)
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for name in ('zero', 'cero', 'kore'):
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self.assertEqual(policies.get_by_name(name), test_policies[0])
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for name in ('two', 'dos', 'rua'):
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self.assertEqual(policies.get_by_name(name), test_policies[2])
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# Testing parsing of conf files/text
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good_conf = self._conf("""
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[storage-policy:0]
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name = one
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aliases = uno, tahi
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default = yes
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""")
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policies = parse_storage_policies(good_conf)
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self.assertEqual(policies.get_by_name('one'),
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policies[0])
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self.assertEqual(policies.get_by_name('one'),
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policies.get_by_name('tahi'))
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name_repeat_conf = self._conf("""
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[storage-policy:0]
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name = one
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aliases = one
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default = yes
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""")
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# Test on line below should not generate errors. Repeat of main
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# name under aliases is permitted during construction
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# but only because automated testing requires it.
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policies = parse_storage_policies(name_repeat_conf)
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extra_commas_conf = self._conf("""
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[storage-policy:0]
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name = one
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aliases = ,,one, ,
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default = yes
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""")
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# Extra blank entries should be silently dropped
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policies = parse_storage_policies(extra_commas_conf)
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bad_conf = self._conf("""
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[storage-policy:0]
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name = one
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aliases = uno, uno
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default = yes
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""")
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self.assertRaisesWithMessage(PolicyError,
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'is already assigned to this policy',
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parse_storage_policies, bad_conf)
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def test_multiple_names_EC(self):
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# checking duplicate names on insert
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test_policies_ec = [
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ECStoragePolicy(
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0, 'ec8-2',
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aliases='zeus, jupiter',
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ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=8, ec_nparity=2,
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object_ring=FakeRing(replicas=8),
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is_default=True),
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ECStoragePolicy(
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1, 'ec10-4',
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aliases='ec8-2',
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ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=10, ec_nparity=4,
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object_ring=FakeRing(replicas=10))]
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self.assertRaises(PolicyError, StoragePolicyCollection,
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test_policies_ec)
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# checking correct retrival using other names
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good_test_policies_EC = [
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ECStoragePolicy(0, 'ec8-2', aliases='zeus, jupiter',
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ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=8, ec_nparity=2,
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object_ring=FakeRing(replicas=10),
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is_default=True),
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ECStoragePolicy(1, 'ec10-4', aliases='athena, minerva',
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ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=10, ec_nparity=4,
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object_ring=FakeRing(replicas=14)),
|
|
ECStoragePolicy(2, 'ec4-2', aliases='poseidon, neptune',
|
|
ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=4, ec_nparity=2,
|
|
object_ring=FakeRing(replicas=6)),
|
|
ECStoragePolicy(3, 'ec4-2-dup', aliases='uzuki, rin',
|
|
ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=4, ec_nparity=2,
|
|
ec_duplication_factor=2,
|
|
object_ring=FakeRing(replicas=12)),
|
|
]
|
|
ec_policies = StoragePolicyCollection(good_test_policies_EC)
|
|
|
|
for name in ('ec8-2', 'zeus', 'jupiter'):
|
|
self.assertEqual(ec_policies.get_by_name(name), ec_policies[0])
|
|
for name in ('ec10-4', 'athena', 'minerva'):
|
|
self.assertEqual(ec_policies.get_by_name(name), ec_policies[1])
|
|
for name in ('ec4-2', 'poseidon', 'neptune'):
|
|
self.assertEqual(ec_policies.get_by_name(name), ec_policies[2])
|
|
for name in ('ec4-2-dup', 'uzuki', 'rin'):
|
|
self.assertEqual(ec_policies.get_by_name(name), ec_policies[3])
|
|
|
|
# Testing parsing of conf files/text
|
|
good_ec_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = ec8-2
|
|
aliases = zeus, jupiter
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
default = yes
|
|
ec_num_data_fragments = 8
|
|
ec_num_parity_fragments = 2
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
aliases = poseidon, neptune
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 4
|
|
[storage-policy:2]
|
|
name = ec4-2-dup
|
|
aliases = uzuki, rin
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
ec_num_data_fragments = 4
|
|
ec_num_parity_fragments = 2
|
|
ec_duplication_factor = 2
|
|
""" % {'ec_type': DEFAULT_TEST_EC_TYPE})
|
|
|
|
ec_policies = parse_storage_policies(good_ec_conf)
|
|
self.assertEqual(ec_policies.get_by_name('ec8-2'),
|
|
ec_policies[0])
|
|
self.assertEqual(ec_policies.get_by_name('ec10-4'),
|
|
ec_policies.get_by_name('poseidon'))
|
|
self.assertEqual(ec_policies.get_by_name('ec4-2-dup'),
|
|
ec_policies.get_by_name('uzuki'))
|
|
|
|
name_repeat_ec_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = ec8-2
|
|
aliases = ec8-2
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
default = yes
|
|
ec_num_data_fragments = 8
|
|
ec_num_parity_fragments = 2
|
|
""" % {'ec_type': DEFAULT_TEST_EC_TYPE})
|
|
# Test on line below should not generate errors. Repeat of main
|
|
# name under aliases is permitted during construction
|
|
# but only because automated testing requires it.
|
|
ec_policies = parse_storage_policies(name_repeat_ec_conf)
|
|
|
|
bad_ec_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = ec8-2
|
|
aliases = zeus, zeus
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
default = yes
|
|
ec_num_data_fragments = 8
|
|
ec_num_parity_fragments = 2
|
|
""" % {'ec_type': DEFAULT_TEST_EC_TYPE})
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'is already assigned to this policy',
|
|
parse_storage_policies, bad_ec_conf)
|
|
|
|
def test_add_remove_names(self):
|
|
test_policies = [StoragePolicy(0, 'zero', True),
|
|
StoragePolicy(1, 'one', False),
|
|
StoragePolicy(2, 'two', False)]
|
|
policies = StoragePolicyCollection(test_policies)
|
|
|
|
# add names
|
|
policies.add_policy_alias(1, 'tahi')
|
|
self.assertEqual(policies.get_by_name('tahi'), test_policies[1])
|
|
|
|
policies.add_policy_alias(2, 'rua', 'dos')
|
|
self.assertEqual(policies.get_by_name('rua'), test_policies[2])
|
|
self.assertEqual(policies.get_by_name('dos'), test_policies[2])
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid name',
|
|
policies.add_policy_alias, 2, 'double\n')
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid name',
|
|
policies.add_policy_alias, 2, '')
|
|
|
|
# try to add existing name
|
|
self.assertRaisesWithMessage(PolicyError, 'Duplicate name',
|
|
policies.add_policy_alias, 2, 'two')
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Duplicate name',
|
|
policies.add_policy_alias, 1, 'two')
|
|
|
|
# remove name
|
|
policies.remove_policy_alias('tahi')
|
|
self.assertIsNone(policies.get_by_name('tahi'))
|
|
|
|
# remove only name
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Policies must have at least one name.',
|
|
policies.remove_policy_alias, 'zero')
|
|
|
|
# remove non-existent name
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'No policy with name',
|
|
policies.remove_policy_alias, 'three')
|
|
|
|
# remove default name
|
|
policies.remove_policy_alias('two')
|
|
self.assertIsNone(policies.get_by_name('two'))
|
|
self.assertEqual(policies.get_by_index(2).name, 'rua')
|
|
|
|
# change default name to a new name
|
|
policies.change_policy_primary_name(2, 'two')
|
|
self.assertEqual(policies.get_by_name('two'), test_policies[2])
|
|
self.assertEqual(policies.get_by_index(2).name, 'two')
|
|
|
|
# change default name to an existing alias
|
|
policies.change_policy_primary_name(2, 'dos')
|
|
self.assertEqual(policies.get_by_index(2).name, 'dos')
|
|
|
|
# change default name to a bad new name
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid name',
|
|
policies.change_policy_primary_name,
|
|
2, 'bad\nname')
|
|
|
|
# change default name to a name belonging to another policy
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Other policy',
|
|
policies.change_policy_primary_name,
|
|
1, 'dos')
|
|
|
|
def test_deprecated_default(self):
|
|
bad_conf = self._conf("""
|
|
[storage-policy:1]
|
|
name = one
|
|
deprecated = yes
|
|
default = yes
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(
|
|
PolicyError, "Deprecated policy can not be default",
|
|
parse_storage_policies, bad_conf)
|
|
|
|
def test_multiple_policies_with_no_policy_index_zero(self):
|
|
bad_conf = self._conf("""
|
|
[storage-policy:1]
|
|
name = one
|
|
default = yes
|
|
""")
|
|
|
|
# Policy-0 will not be implicitly added if other policies are defined
|
|
self.assertRaisesWithMessage(
|
|
PolicyError, "must specify a storage policy section "
|
|
"for policy index 0", parse_storage_policies, bad_conf)
|
|
|
|
@mock.patch.object(swift.common.storage_policy, 'VALID_EC_TYPES',
|
|
['isa_l_rs_vand', 'isa_l_rs_cauchy'])
|
|
@mock.patch('swift.common.storage_policy.ECDriver')
|
|
def test_known_bad_ec_config(self, mock_driver):
|
|
good_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = bad-policy
|
|
policy_type = erasure_coding
|
|
ec_type = isa_l_rs_cauchy
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 5
|
|
""")
|
|
|
|
with capture_logging('swift.common.storage_policy') as records:
|
|
parse_storage_policies(good_conf)
|
|
mock_driver.assert_called_once()
|
|
mock_driver.reset_mock()
|
|
self.assertFalse([(r.levelname, r.msg) for r in records])
|
|
|
|
good_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = bad-policy
|
|
policy_type = erasure_coding
|
|
ec_type = isa_l_rs_vand
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 4
|
|
""")
|
|
|
|
with capture_logging('swift.common.storage_policy') as records:
|
|
parse_storage_policies(good_conf)
|
|
mock_driver.assert_called_once()
|
|
mock_driver.reset_mock()
|
|
self.assertFalse([(r.levelname, r.msg) for r in records])
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = bad-policy
|
|
policy_type = erasure_coding
|
|
ec_type = isa_l_rs_vand
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 5
|
|
""")
|
|
|
|
with capture_logging('swift.common.storage_policy') as records, \
|
|
self.assertRaises(PolicyError) as exc_mgr:
|
|
parse_storage_policies(bad_conf)
|
|
self.assertEqual(exc_mgr.exception.args[0],
|
|
'Storage policy bad-policy uses an EC '
|
|
'configuration known to harm data durability. This '
|
|
'policy MUST be deprecated.')
|
|
mock_driver.assert_not_called()
|
|
mock_driver.reset_mock()
|
|
self.assertEqual([r.levelname for r in records],
|
|
['WARNING'])
|
|
for msg in ('known to harm data durability',
|
|
'Any data in this policy should be migrated',
|
|
'https://bugs.launchpad.net/swift/+bug/1639691'):
|
|
self.assertIn(msg, records[0].msg)
|
|
|
|
slightly_less_bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = bad-policy
|
|
policy_type = erasure_coding
|
|
ec_type = isa_l_rs_vand
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 5
|
|
deprecated = true
|
|
|
|
[storage-policy:1]
|
|
name = good-policy
|
|
policy_type = erasure_coding
|
|
ec_type = isa_l_rs_cauchy
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 5
|
|
default = true
|
|
""")
|
|
|
|
with capture_logging('swift.common.storage_policy') as records:
|
|
parse_storage_policies(slightly_less_bad_conf)
|
|
self.assertEqual(2, mock_driver.call_count)
|
|
mock_driver.reset_mock()
|
|
self.assertEqual([r.levelname for r in records],
|
|
['WARNING'])
|
|
for msg in ('known to harm data durability',
|
|
'Any data in this policy should be migrated',
|
|
'https://bugs.launchpad.net/swift/+bug/1639691'):
|
|
self.assertIn(msg, records[0].msg)
|
|
|
|
def test_no_default(self):
|
|
orig_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = one
|
|
default = yes
|
|
""")
|
|
|
|
policies = parse_storage_policies(orig_conf)
|
|
self.assertEqual(policies.default, policies[1])
|
|
self.assertTrue(policies[0].name, 'Policy-0')
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = one
|
|
deprecated = yes
|
|
""")
|
|
|
|
# multiple polices and no explicit default
|
|
self.assertRaisesWithMessage(
|
|
PolicyError, "Unable to find default",
|
|
parse_storage_policies, bad_conf)
|
|
|
|
good_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = Policy-0
|
|
default = yes
|
|
[storage-policy:1]
|
|
name = one
|
|
deprecated = yes
|
|
""")
|
|
|
|
policies = parse_storage_policies(good_conf)
|
|
self.assertEqual(policies.default, policies[0])
|
|
self.assertTrue(policies[1].is_deprecated, True)
|
|
|
|
def test_parse_storage_policies(self):
|
|
# ValueError when deprecating policy 0
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
deprecated = yes
|
|
|
|
[storage-policy:1]
|
|
name = one
|
|
deprecated = yes
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(
|
|
PolicyError, "Unable to find policy that's not deprecated",
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:]
|
|
name = zero
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid index',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:-1]
|
|
name = zero
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid index',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:x]
|
|
name = zero
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid index',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:x-1]
|
|
name = zero
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid index',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:x]
|
|
name = zero
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid index',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:x:1]
|
|
name = zero
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid index',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:1]
|
|
name = zero
|
|
boo = berries
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid option',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name =
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid name',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:3]
|
|
name = Policy-0
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid name',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:1]
|
|
name = policY-0
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid name',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = one
|
|
[storage-policy:1]
|
|
name = ONE
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Duplicate name',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = good_stuff
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Invalid name',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
# policy_type = erasure_coding
|
|
|
|
# missing ec_type, ec_num_data_fragments and ec_num_parity_fragments
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Missing ec_type',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
# missing ec_type, but other options valid...
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 4
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError, 'Missing ec_type',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
# ec_type specified, but invalid...
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
default = yes
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
ec_type = garbage_alg
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 4
|
|
""")
|
|
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Wrong ec_type garbage_alg for policy '
|
|
'ec10-4, should be one of "%s"' %
|
|
(', '.join(VALID_EC_TYPES)),
|
|
parse_storage_policies, bad_conf)
|
|
|
|
# missing and invalid ec_num_parity_fragments
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
ec_num_data_fragments = 10
|
|
""" % {'ec_type': DEFAULT_TEST_EC_TYPE})
|
|
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Invalid ec_num_parity_fragments',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
for num_parity in ('-4', '0', 'x'):
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = %(num_parity)s
|
|
""" % {'ec_type': DEFAULT_TEST_EC_TYPE,
|
|
'num_parity': num_parity})
|
|
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Invalid ec_num_parity_fragments',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
# missing and invalid ec_num_data_fragments
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
ec_num_parity_fragments = 4
|
|
""" % {'ec_type': DEFAULT_TEST_EC_TYPE})
|
|
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Invalid ec_num_data_fragments',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
for num_data in ('-10', '0', 'x'):
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
ec_type = %(ec_type)s
|
|
ec_num_data_fragments = %(num_data)s
|
|
ec_num_parity_fragments = 4
|
|
""" % {'num_data': num_data, 'ec_type': DEFAULT_TEST_EC_TYPE})
|
|
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Invalid ec_num_data_fragments',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
# invalid ec_object_segment_size
|
|
for segment_size in ('-4', '0', 'x'):
|
|
bad_conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:1]
|
|
name = ec10-4
|
|
policy_type = erasure_coding
|
|
ec_object_segment_size = %(segment_size)s
|
|
ec_type = %(ec_type)s
|
|
ec_num_data_fragments = 10
|
|
ec_num_parity_fragments = 4
|
|
""" % {'segment_size': segment_size,
|
|
'ec_type': DEFAULT_TEST_EC_TYPE})
|
|
|
|
self.assertRaisesWithMessage(PolicyError,
|
|
'Invalid ec_object_segment_size',
|
|
parse_storage_policies, bad_conf)
|
|
|
|
# Additional section added to ensure parser ignores other sections
|
|
conf = self._conf("""
|
|
[some-other-section]
|
|
foo = bar
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:5]
|
|
name = one
|
|
default = yes
|
|
[storage-policy:6]
|
|
name = duplicate-sections-are-ignored
|
|
[storage-policy:6]
|
|
name = apple
|
|
""")
|
|
policies = parse_storage_policies(conf)
|
|
|
|
self.assertEqual(True, policies.get_by_index(5).is_default)
|
|
self.assertEqual(False, policies.get_by_index(0).is_default)
|
|
self.assertEqual(False, policies.get_by_index(6).is_default)
|
|
|
|
self.assertEqual("object", policies.get_by_name("zero").ring_name)
|
|
self.assertEqual("object-5", policies.get_by_name("one").ring_name)
|
|
self.assertEqual("object-6", policies.get_by_name("apple").ring_name)
|
|
|
|
self.assertEqual(0, int(policies.get_by_name('zero')))
|
|
self.assertEqual(5, int(policies.get_by_name('one')))
|
|
self.assertEqual(6, int(policies.get_by_name('apple')))
|
|
|
|
self.assertEqual("zero", policies.get_by_index(0).name)
|
|
self.assertEqual("zero", policies.get_by_index("0").name)
|
|
self.assertEqual("one", policies.get_by_index(5).name)
|
|
self.assertEqual("apple", policies.get_by_index(6).name)
|
|
self.assertEqual("zero", policies.get_by_index(None).name)
|
|
self.assertEqual("zero", policies.get_by_index('').name)
|
|
|
|
self.assertEqual(policies.get_by_index(0), policies.legacy)
|
|
|
|
def test_reload_invalid_storage_policies(self):
|
|
conf = self._conf("""
|
|
[storage-policy:0]
|
|
name = zero
|
|
[storage-policy:00]
|
|
name = double-zero
|
|
""")
|
|
with NamedTemporaryFile(mode='w+t') as f:
|
|
conf.write(f)
|
|
f.flush()
|
|
with mock.patch('swift.common.utils.SWIFT_CONF_FILE',
|
|
new=f.name):
|
|
try:
|
|
reload_storage_policies()
|
|
except SystemExit as e:
|
|
err_msg = str(e)
|
|
else:
|
|
self.fail('SystemExit not raised')
|
|
parts = [
|
|
'Invalid Storage Policy Configuration',
|
|
'Duplicate index',
|
|
]
|
|
for expected in parts:
|
|
self.assertTrue(
|
|
expected in err_msg, '%s was not in %s' % (expected,
|
|
err_msg))
|
|
|
|
def test_storage_policy_ordering(self):
|
|
test_policies = StoragePolicyCollection([
|
|
StoragePolicy(0, 'zero', is_default=True),
|
|
StoragePolicy(503, 'error'),
|
|
StoragePolicy(204, 'empty'),
|
|
StoragePolicy(404, 'missing'),
|
|
])
|
|
self.assertEqual([0, 204, 404, 503], [int(p) for p in
|
|
sorted(list(test_policies))])
|
|
|
|
p503 = test_policies[503]
|
|
self.assertTrue(501 < p503 < 507)
|
|
|
|
def test_get_object_ring(self):
|
|
test_policies = [StoragePolicy(0, 'aay', True),
|
|
StoragePolicy(1, 'bee', False),
|
|
StoragePolicy(2, 'cee', False)]
|
|
policies = StoragePolicyCollection(test_policies)
|
|
|
|
class NamedFakeRing(FakeRing):
|
|
|
|
def __init__(self, swift_dir, ring_name=None):
|
|
self.ring_name = ring_name
|
|
super(NamedFakeRing, self).__init__()
|
|
|
|
with mock.patch('swift.common.storage_policy.Ring',
|
|
new=NamedFakeRing):
|
|
for policy in policies:
|
|
self.assertFalse(policy.object_ring)
|
|
ring = policies.get_object_ring(int(policy), '/path/not/used')
|
|
self.assertEqual(ring.ring_name, policy.ring_name)
|
|
self.assertTrue(policy.object_ring)
|
|
self.assertTrue(isinstance(policy.object_ring, NamedFakeRing))
|
|
|
|
def blow_up(*args, **kwargs):
|
|
raise Exception('kaboom!')
|
|
|
|
with mock.patch('swift.common.storage_policy.Ring', new=blow_up):
|
|
for policy in policies:
|
|
policy.load_ring('/path/not/used')
|
|
expected = policies.get_object_ring(int(policy),
|
|
'/path/not/used')
|
|
self.assertEqual(policy.object_ring, expected)
|
|
|
|
# bad policy index
|
|
self.assertRaises(PolicyError, policies.get_object_ring, 99,
|
|
'/path/not/used')
|
|
|
|
def test_bind_ports_cache(self):
|
|
test_policies = [StoragePolicy(0, 'aay', True),
|
|
StoragePolicy(1, 'bee', False),
|
|
StoragePolicy(2, 'cee', False)]
|
|
|
|
my_ips = ['1.2.3.4', '2.3.4.5']
|
|
other_ips = ['3.4.5.6', '4.5.6.7']
|
|
bind_ip = my_ips[1]
|
|
devs_by_ring_name1 = {
|
|
'object': [ # 'aay'
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[0],
|
|
'port': 6006},
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[0],
|
|
'port': 6007},
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[1],
|
|
'port': 6008},
|
|
None,
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[1],
|
|
'port': 6009}],
|
|
'object-1': [ # 'bee'
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[1],
|
|
'port': 6006}, # dupe
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[0],
|
|
'port': 6010},
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[1],
|
|
'port': 6011},
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[1],
|
|
'port': 6012}],
|
|
'object-2': [ # 'cee'
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[0],
|
|
'port': 6010}, # on our IP and a not-us IP
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[0],
|
|
'port': 6013},
|
|
None,
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[1],
|
|
'port': 6014},
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[1],
|
|
'port': 6015}],
|
|
}
|
|
devs_by_ring_name2 = {
|
|
'object': [ # 'aay'
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[0],
|
|
'port': 6016},
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[1],
|
|
'port': 6019}],
|
|
'object-1': [ # 'bee'
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[1],
|
|
'port': 6016}, # dupe
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[1],
|
|
'port': 6022}],
|
|
'object-2': [ # 'cee'
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': my_ips[0],
|
|
'port': 6020},
|
|
{'id': 0, 'zone': 0, 'region': 1, 'ip': other_ips[1],
|
|
'port': 6025}],
|
|
}
|
|
ring_files = [ring_name + '.ring.gz'
|
|
for ring_name in sorted(devs_by_ring_name1)]
|
|
|
|
def _fake_load(gz_path, stub_objs, metadata_only=False):
|
|
return RingData(
|
|
devs=stub_objs[os.path.basename(gz_path)[:-8]],
|
|
replica2part2dev_id=[],
|
|
part_shift=24)
|
|
|
|
with mock.patch(
|
|
'swift.common.storage_policy.RingData.load'
|
|
) as mock_ld, \
|
|
patch_policies(test_policies), \
|
|
mock.patch('swift.common.storage_policy.whataremyips') \
|
|
as mock_whataremyips, \
|
|
temptree(ring_files) as tempdir:
|
|
mock_whataremyips.return_value = my_ips
|
|
|
|
cache = BindPortsCache(tempdir, bind_ip)
|
|
|
|
self.assertEqual([
|
|
mock.call(bind_ip),
|
|
], mock_whataremyips.mock_calls)
|
|
mock_whataremyips.reset_mock()
|
|
|
|
mock_ld.side_effect = partial(_fake_load,
|
|
stub_objs=devs_by_ring_name1)
|
|
self.assertEqual(set([
|
|
6006, 6008, 6011, 6010, 6014,
|
|
]), cache.all_bind_ports_for_node())
|
|
self.assertEqual([
|
|
mock.call(os.path.join(tempdir, ring_files[0]),
|
|
metadata_only=True),
|
|
mock.call(os.path.join(tempdir, ring_files[1]),
|
|
metadata_only=True),
|
|
mock.call(os.path.join(tempdir, ring_files[2]),
|
|
metadata_only=True),
|
|
], mock_ld.mock_calls)
|
|
mock_ld.reset_mock()
|
|
|
|
mock_ld.side_effect = partial(_fake_load,
|
|
stub_objs=devs_by_ring_name2)
|
|
self.assertEqual(set([
|
|
6006, 6008, 6011, 6010, 6014,
|
|
]), cache.all_bind_ports_for_node())
|
|
self.assertEqual([], mock_ld.mock_calls)
|
|
|
|
# but when all the file mtimes are made different, it'll
|
|
# reload
|
|
for gz_file in [os.path.join(tempdir, n)
|
|
for n in ring_files]:
|
|
os.utime(gz_file, (88, 88))
|
|
|
|
self.assertEqual(set([
|
|
6016, 6020,
|
|
]), cache.all_bind_ports_for_node())
|
|
self.assertEqual([
|
|
mock.call(os.path.join(tempdir, ring_files[0]),
|
|
metadata_only=True),
|
|
mock.call(os.path.join(tempdir, ring_files[1]),
|
|
metadata_only=True),
|
|
mock.call(os.path.join(tempdir, ring_files[2]),
|
|
metadata_only=True),
|
|
], mock_ld.mock_calls)
|
|
mock_ld.reset_mock()
|
|
|
|
# Don't do something stupid like crash if a ring file is missing.
|
|
os.unlink(os.path.join(tempdir, 'object-2.ring.gz'))
|
|
|
|
self.assertEqual(set([
|
|
6016, 6020,
|
|
]), cache.all_bind_ports_for_node())
|
|
self.assertEqual([], mock_ld.mock_calls)
|
|
|
|
# whataremyips() is only called in the constructor
|
|
self.assertEqual([], mock_whataremyips.mock_calls)
|
|
|
|
def test_singleton_passthrough(self):
|
|
test_policies = [StoragePolicy(0, 'aay', True),
|
|
StoragePolicy(1, 'bee', False),
|
|
StoragePolicy(2, 'cee', False)]
|
|
with patch_policies(test_policies):
|
|
for policy in POLICIES:
|
|
self.assertEqual(POLICIES[int(policy)], policy)
|
|
|
|
def test_quorum_size_replication(self):
|
|
expected_sizes = {1: 1,
|
|
2: 1,
|
|
3: 2,
|
|
4: 2,
|
|
5: 3}
|
|
for n, expected in expected_sizes.items():
|
|
policy = StoragePolicy(0, 'zero',
|
|
object_ring=FakeRing(replicas=n))
|
|
self.assertEqual(policy.quorum, expected)
|
|
|
|
def test_quorum_size_erasure_coding(self):
|
|
test_ec_policies = [
|
|
ECStoragePolicy(10, 'ec8-2', ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=8, ec_nparity=2),
|
|
ECStoragePolicy(11, 'df10-6', ec_type='flat_xor_hd_4',
|
|
ec_ndata=10, ec_nparity=6),
|
|
ECStoragePolicy(12, 'ec4-2-dup', ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=4, ec_nparity=2, ec_duplication_factor=2),
|
|
]
|
|
for ec_policy in test_ec_policies:
|
|
k = ec_policy.ec_ndata
|
|
expected_size = (
|
|
(k + ec_policy.pyeclib_driver.min_parity_fragments_needed())
|
|
* ec_policy.ec_duplication_factor
|
|
)
|
|
|
|
self.assertEqual(expected_size, ec_policy.quorum)
|
|
|
|
def test_validate_ring(self):
|
|
test_policies = [
|
|
ECStoragePolicy(0, 'ec8-2', ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=8, ec_nparity=2,
|
|
is_default=True),
|
|
ECStoragePolicy(1, 'ec10-4', ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=10, ec_nparity=4),
|
|
ECStoragePolicy(2, 'ec4-2', ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=4, ec_nparity=2),
|
|
ECStoragePolicy(3, 'ec4-2-2dup', ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=4, ec_nparity=2,
|
|
ec_duplication_factor=2)
|
|
]
|
|
policies = StoragePolicyCollection(test_policies)
|
|
|
|
class MockRingData(object):
|
|
def __init__(self, num_replica):
|
|
self.replica_count = num_replica
|
|
|
|
def do_test(actual_load_ring_replicas):
|
|
for policy, ring_replicas in zip(policies,
|
|
actual_load_ring_replicas):
|
|
with mock.patch('swift.common.ring.ring.RingData.load',
|
|
return_value=MockRingData(ring_replicas)):
|
|
necessary_replica_num = (policy.ec_n_unique_fragments *
|
|
policy.ec_duplication_factor)
|
|
with mock.patch(
|
|
'swift.common.ring.ring.validate_configuration'):
|
|
msg = 'EC ring for policy %s needs to be configured ' \
|
|
'with exactly %d replicas.' % \
|
|
(policy.name, necessary_replica_num)
|
|
self.assertRaisesWithMessage(RingLoadError, msg,
|
|
policy.load_ring, 'mock')
|
|
|
|
# first, do somethign completely different
|
|
do_test([8, 10, 7, 11])
|
|
# then again, closer to true, but fractional
|
|
do_test([9.9, 14.1, 5.99999, 12.000000001])
|
|
|
|
def test_storage_policy_get_info(self):
|
|
test_policies = [
|
|
StoragePolicy(0, 'zero', is_default=True),
|
|
StoragePolicy(1, 'one', is_deprecated=True,
|
|
aliases='tahi, uno'),
|
|
ECStoragePolicy(10, 'ten',
|
|
ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=10, ec_nparity=3),
|
|
ECStoragePolicy(11, 'done', is_deprecated=True,
|
|
ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=10, ec_nparity=3),
|
|
]
|
|
policies = StoragePolicyCollection(test_policies)
|
|
expected = {
|
|
# default replication
|
|
(0, True): {
|
|
'name': 'zero',
|
|
'aliases': 'zero',
|
|
'default': True,
|
|
'deprecated': False,
|
|
'policy_type': REPL_POLICY
|
|
},
|
|
(0, False): {
|
|
'name': 'zero',
|
|
'aliases': 'zero',
|
|
'default': True,
|
|
},
|
|
# deprecated replication
|
|
(1, True): {
|
|
'name': 'one',
|
|
'aliases': 'one, tahi, uno',
|
|
'default': False,
|
|
'deprecated': True,
|
|
'policy_type': REPL_POLICY
|
|
},
|
|
(1, False): {
|
|
'name': 'one',
|
|
'aliases': 'one, tahi, uno',
|
|
'deprecated': True,
|
|
},
|
|
# enabled ec
|
|
(10, True): {
|
|
'name': 'ten',
|
|
'aliases': 'ten',
|
|
'default': False,
|
|
'deprecated': False,
|
|
'policy_type': EC_POLICY,
|
|
'ec_type': DEFAULT_TEST_EC_TYPE,
|
|
'ec_num_data_fragments': 10,
|
|
'ec_num_parity_fragments': 3,
|
|
'ec_object_segment_size': DEFAULT_EC_OBJECT_SEGMENT_SIZE,
|
|
'ec_duplication_factor': 1,
|
|
},
|
|
(10, False): {
|
|
'name': 'ten',
|
|
'aliases': 'ten',
|
|
},
|
|
# deprecated ec
|
|
(11, True): {
|
|
'name': 'done',
|
|
'aliases': 'done',
|
|
'default': False,
|
|
'deprecated': True,
|
|
'policy_type': EC_POLICY,
|
|
'ec_type': DEFAULT_TEST_EC_TYPE,
|
|
'ec_num_data_fragments': 10,
|
|
'ec_num_parity_fragments': 3,
|
|
'ec_object_segment_size': DEFAULT_EC_OBJECT_SEGMENT_SIZE,
|
|
'ec_duplication_factor': 1,
|
|
},
|
|
(11, False): {
|
|
'name': 'done',
|
|
'aliases': 'done',
|
|
'deprecated': True,
|
|
},
|
|
# enabled ec with ec_duplication
|
|
(12, True): {
|
|
'name': 'twelve',
|
|
'aliases': 'twelve',
|
|
'default': False,
|
|
'deprecated': False,
|
|
'policy_type': EC_POLICY,
|
|
'ec_type': DEFAULT_TEST_EC_TYPE,
|
|
'ec_num_data_fragments': 10,
|
|
'ec_num_parity_fragments': 3,
|
|
'ec_object_segment_size': DEFAULT_EC_OBJECT_SEGMENT_SIZE,
|
|
'ec_duplication_factor': 2,
|
|
},
|
|
(12, False): {
|
|
'name': 'twelve',
|
|
'aliases': 'twelve',
|
|
},
|
|
}
|
|
self.maxDiff = None
|
|
for policy in policies:
|
|
expected_info = expected[(int(policy), True)]
|
|
self.assertEqual(policy.get_info(config=True), expected_info)
|
|
expected_info = expected[(int(policy), False)]
|
|
self.assertEqual(policy.get_info(config=False), expected_info)
|
|
|
|
def test_ec_fragment_size_cached(self):
|
|
policy = ECStoragePolicy(
|
|
0, 'ec2-1', ec_type=DEFAULT_TEST_EC_TYPE,
|
|
ec_ndata=2, ec_nparity=1, object_ring=FakeRing(replicas=3),
|
|
ec_segment_size=DEFAULT_EC_OBJECT_SEGMENT_SIZE, is_default=True)
|
|
|
|
ec_driver = ECDriver(ec_type=DEFAULT_TEST_EC_TYPE,
|
|
k=2, m=1)
|
|
expected_fragment_size = ec_driver.get_segment_info(
|
|
DEFAULT_EC_OBJECT_SEGMENT_SIZE,
|
|
DEFAULT_EC_OBJECT_SEGMENT_SIZE)['fragment_size']
|
|
|
|
with mock.patch.object(
|
|
policy.pyeclib_driver, 'get_segment_info') as fake:
|
|
fake.return_value = {
|
|
'fragment_size': expected_fragment_size}
|
|
|
|
for x in range(10):
|
|
self.assertEqual(expected_fragment_size,
|
|
policy.fragment_size)
|
|
# pyeclib_driver.get_segment_info is called only once
|
|
self.assertEqual(1, fake.call_count)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|