c1f8f266d0
This is needed on Pythons which do not have reference counting GCs (e.g. PyPy). Change-Id: I5a613e832e9a7a149b3e9317c053c3048f34afcb
297 lines
11 KiB
Python
297 lines
11 KiB
Python
# Copyright (c) 2010-2013 OpenStack, LLC.
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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 with_statement
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import unittest
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import os
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from contextlib import closing
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from gzip import GzipFile
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from shutil import rmtree
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import cPickle as pickle
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import time
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import tempfile
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from test.unit import FakeLogger, mock as unit_mock
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from swift.common import utils
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from swift.common.utils import hash_path, mkdirs, normalize_timestamp
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from swift.common import ring
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from swift.obj import base as object_base
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from swift.obj.server import DiskFile
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def _create_test_ring(path):
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testgz = os.path.join(path, 'object.ring.gz')
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intended_replica2part2dev_id = [
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[0, 1, 2, 3, 4, 5, 6],
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[1, 2, 3, 0, 5, 6, 4],
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[2, 3, 0, 1, 6, 4, 5]]
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intended_devs = [
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{'id': 0, 'device': 'sda', 'zone': 0, 'ip': '127.0.0.0', 'port': 6000},
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{'id': 1, 'device': 'sda', 'zone': 1, 'ip': '127.0.0.1', 'port': 6000},
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{'id': 2, 'device': 'sda', 'zone': 2, 'ip': '127.0.0.2', 'port': 6000},
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{'id': 3, 'device': 'sda', 'zone': 4, 'ip': '127.0.0.3', 'port': 6000},
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{'id': 4, 'device': 'sda', 'zone': 5, 'ip': '127.0.0.4', 'port': 6000},
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{'id': 5, 'device': 'sda', 'zone': 6,
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'ip': 'fe80::202:b3ff:fe1e:8329', 'port': 6000},
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{'id': 6, 'device': 'sda', 'zone': 7,
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'ip': '2001:0db8:85a3:0000:0000:8a2e:0370:7334', 'port': 6000}]
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intended_part_shift = 30
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intended_reload_time = 15
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with closing(GzipFile(testgz, 'wb')) as f:
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pickle.dump(
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ring.RingData(intended_replica2part2dev_id, intended_devs,
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intended_part_shift),
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f)
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return ring.Ring(path, ring_name='object',
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reload_time=intended_reload_time)
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class TestObjectBase(unittest.TestCase):
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def setUp(self):
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utils.HASH_PATH_SUFFIX = 'endcap'
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utils.HASH_PATH_PREFIX = ''
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# Setup a test ring (stolen from common/test_ring.py)
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self.testdir = tempfile.mkdtemp()
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self.devices = os.path.join(self.testdir, 'node')
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rmtree(self.testdir, ignore_errors=1)
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os.mkdir(self.testdir)
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os.mkdir(self.devices)
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os.mkdir(os.path.join(self.devices, 'sda'))
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self.objects = os.path.join(self.devices, 'sda', 'objects')
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os.mkdir(self.objects)
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self.parts = {}
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for part in ['0', '1', '2', '3']:
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self.parts[part] = os.path.join(self.objects, part)
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os.mkdir(os.path.join(self.objects, part))
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self.ring = _create_test_ring(self.testdir)
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self.conf = dict(
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swift_dir=self.testdir, devices=self.devices, mount_check='false',
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timeout='300', stats_interval='1')
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def tearDown(self):
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rmtree(self.testdir, ignore_errors=1)
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def test_hash_suffix_hash_dir_is_file_quarantine(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(os.path.dirname(df.datadir))
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open(df.datadir, 'wb').close()
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ohash = hash_path('a', 'c', 'o')
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data_dir = ohash[-3:]
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whole_path_from = os.path.join(self.objects, '0', data_dir)
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orig_quarantine_renamer = object_base.quarantine_renamer
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called = [False]
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def wrapped(*args, **kwargs):
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called[0] = True
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return orig_quarantine_renamer(*args, **kwargs)
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try:
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object_base.quarantine_renamer = wrapped
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object_base.hash_suffix(whole_path_from, 101)
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finally:
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object_base.quarantine_renamer = orig_quarantine_renamer
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self.assertTrue(called[0])
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def test_hash_suffix_one_file(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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f = open(
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os.path.join(df.datadir,
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normalize_timestamp(time.time() - 100) + '.ts'),
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'wb')
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f.write('1234567890')
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f.close()
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ohash = hash_path('a', 'c', 'o')
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data_dir = ohash[-3:]
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whole_path_from = os.path.join(self.objects, '0', data_dir)
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object_base.hash_suffix(whole_path_from, 101)
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self.assertEquals(len(os.listdir(self.parts['0'])), 1)
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object_base.hash_suffix(whole_path_from, 99)
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self.assertEquals(len(os.listdir(self.parts['0'])), 0)
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def test_hash_suffix_multi_file_one(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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for tdiff in [1, 50, 100, 500]:
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for suff in ['.meta', '.data', '.ts']:
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f = open(
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os.path.join(
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df.datadir,
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normalize_timestamp(int(time.time()) - tdiff) + suff),
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'wb')
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f.write('1234567890')
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f.close()
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ohash = hash_path('a', 'c', 'o')
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data_dir = ohash[-3:]
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whole_path_from = os.path.join(self.objects, '0', data_dir)
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hsh_path = os.listdir(whole_path_from)[0]
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whole_hsh_path = os.path.join(whole_path_from, hsh_path)
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object_base.hash_suffix(whole_path_from, 99)
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# only the tombstone should be left
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self.assertEquals(len(os.listdir(whole_hsh_path)), 1)
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def test_hash_suffix_multi_file_two(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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for tdiff in [1, 50, 100, 500]:
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suffs = ['.meta', '.data']
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if tdiff > 50:
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suffs.append('.ts')
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for suff in suffs:
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f = open(
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os.path.join(
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df.datadir,
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normalize_timestamp(int(time.time()) - tdiff) + suff),
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'wb')
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f.write('1234567890')
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f.close()
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ohash = hash_path('a', 'c', 'o')
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data_dir = ohash[-3:]
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whole_path_from = os.path.join(self.objects, '0', data_dir)
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hsh_path = os.listdir(whole_path_from)[0]
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whole_hsh_path = os.path.join(whole_path_from, hsh_path)
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object_base.hash_suffix(whole_path_from, 99)
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# only the meta and data should be left
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self.assertEquals(len(os.listdir(whole_hsh_path)), 2)
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def test_invalidate_hash(self):
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def assertFileData(file_path, data):
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with open(file_path, 'r') as fp:
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fdata = fp.read()
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self.assertEquals(pickle.loads(fdata), pickle.loads(data))
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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ohash = hash_path('a', 'c', 'o')
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data_dir = ohash[-3:]
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whole_path_from = os.path.join(self.objects, '0', data_dir)
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hashes_file = os.path.join(self.objects, '0',
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object_base.HASH_FILE)
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# test that non existent file except caught
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self.assertEquals(object_base.invalidate_hash(whole_path_from),
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None)
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# test that hashes get cleared
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check_pickle_data = pickle.dumps({data_dir: None},
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object_base.PICKLE_PROTOCOL)
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for data_hash in [{data_dir: None}, {data_dir: 'abcdefg'}]:
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with open(hashes_file, 'wb') as fp:
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pickle.dump(data_hash, fp, object_base.PICKLE_PROTOCOL)
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object_base.invalidate_hash(whole_path_from)
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assertFileData(hashes_file, check_pickle_data)
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def test_get_hashes(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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with open(
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os.path.join(df.datadir,
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normalize_timestamp(time.time()) + '.ts'),
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'wb') as f:
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f.write('1234567890')
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part = os.path.join(self.objects, '0')
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hashed, hashes = object_base.get_hashes(part)
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self.assertEquals(hashed, 1)
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self.assert_('a83' in hashes)
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hashed, hashes = object_base.get_hashes(part, do_listdir=True)
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self.assertEquals(hashed, 0)
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self.assert_('a83' in hashes)
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hashed, hashes = object_base.get_hashes(part, recalculate=['a83'])
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self.assertEquals(hashed, 1)
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self.assert_('a83' in hashes)
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def test_get_hashes_bad_dir(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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with open(os.path.join(self.objects, '0', 'bad'), 'wb') as f:
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f.write('1234567890')
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part = os.path.join(self.objects, '0')
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hashed, hashes = object_base.get_hashes(part)
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self.assertEquals(hashed, 1)
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self.assert_('a83' in hashes)
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self.assert_('bad' not in hashes)
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def test_get_hashes_unmodified(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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with open(
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os.path.join(df.datadir,
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normalize_timestamp(time.time()) + '.ts'),
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'wb') as f:
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f.write('1234567890')
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part = os.path.join(self.objects, '0')
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hashed, hashes = object_base.get_hashes(part)
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i = [0]
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def getmtime(filename):
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i[0] += 1
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return 1
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with unit_mock({'os.path.getmtime': getmtime}):
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hashed, hashes = object_base.get_hashes(
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part, recalculate=['a83'])
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self.assertEquals(i[0], 2)
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def test_get_hashes_unmodified_and_zero_bytes(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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part = os.path.join(self.objects, '0')
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open(os.path.join(part, object_base.HASH_FILE), 'w')
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# Now the hash file is zero bytes.
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i = [0]
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def getmtime(filename):
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i[0] += 1
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return 1
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with unit_mock({'os.path.getmtime': getmtime}):
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hashed, hashes = object_base.get_hashes(
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part, recalculate=[])
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# getmtime will actually not get called. Initially, the pickle.load
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# will raise an exception first and later, force_rewrite will
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# short-circuit the if clause to determine whether to write out a fresh
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# hashes_file.
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self.assertEquals(i[0], 0)
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self.assertTrue('a83' in hashes)
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def test_get_hashes_modified(self):
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df = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o', FakeLogger())
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mkdirs(df.datadir)
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with open(
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os.path.join(df.datadir,
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normalize_timestamp(time.time()) + '.ts'),
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'wb') as f:
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f.write('1234567890')
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part = os.path.join(self.objects, '0')
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hashed, hashes = object_base.get_hashes(part)
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i = [0]
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def getmtime(filename):
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if i[0] < 3:
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i[0] += 1
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return i[0]
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with unit_mock({'os.path.getmtime': getmtime}):
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hashed, hashes = object_base.get_hashes(
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part, recalculate=['a83'])
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self.assertEquals(i[0], 3)
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if __name__ == '__main__':
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unittest.main()
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