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# Copyright (c) 2010-2012 OpenStack, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from test import unit
import unittest
import mock
import os
import time
from shutil import rmtree
from hashlib import md5
from tempfile import mkdtemp
from test.unit import FakeLogger
from swift.obj import auditor
from swift.obj.diskfile import DiskFile, write_metadata, invalidate_hash
from swift.obj.server import DATADIR
from swift.common.utils import hash_path, mkdirs, normalize_timestamp, \
storage_directory
class TestAuditor(unittest.TestCase):
def setUp(self):
self.testdir = os.path.join(mkdtemp(), 'tmp_test_object_auditor')
self.devices = os.path.join(self.testdir, 'node')
self.logger = FakeLogger()
rmtree(self.testdir, ignore_errors=1)
mkdirs(os.path.join(self.devices, 'sda'))
self.objects = os.path.join(self.devices, 'sda', 'objects')
os.mkdir(os.path.join(self.devices, 'sdb'))
self.objects_2 = os.path.join(self.devices, 'sdb', 'objects')
os.mkdir(self.objects)
self.parts = {}
for part in ['0', '1', '2', '3']:
self.parts[part] = os.path.join(self.objects, part)
os.mkdir(os.path.join(self.objects, part))
self.conf = dict(
devices=self.devices,
mount_check='false',
object_size_stats='10,100,1024,10240')
self.disk_file = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o',
self.logger)
def tearDown(self):
rmtree(os.path.dirname(self.testdir), ignore_errors=1)
unit.xattr_data = {}
def test_object_audit_extra_data(self):
self.auditor = auditor.AuditorWorker(self.conf, self.logger)
data = '0' * 1024
etag = md5()
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
timestamp = str(normalize_timestamp(time.time()))
metadata = {
'ETag': etag,
'X-Timestamp': timestamp,
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
pre_quarantines = self.auditor.quarantines
self.auditor.object_audit(
os.path.join(self.disk_file.datadir, timestamp + '.data'),
'sda', '0')
self.assertEquals(self.auditor.quarantines, pre_quarantines)
os.write(writer.fd, 'extra_data')
self.auditor.object_audit(
os.path.join(self.disk_file.datadir, timestamp + '.data'),
'sda', '0')
self.assertEquals(self.auditor.quarantines, pre_quarantines + 1)
def test_object_audit_diff_data(self):
self.auditor = auditor.AuditorWorker(self.conf, self.logger)
data = '0' * 1024
etag = md5()
timestamp = str(normalize_timestamp(time.time()))
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': timestamp,
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
pre_quarantines = self.auditor.quarantines
# remake so it will have metadata
self.disk_file = DiskFile(self.devices, 'sda', '0', 'a', 'c', 'o',
self.logger)
self.auditor.object_audit(
os.path.join(self.disk_file.datadir, timestamp + '.data'),
'sda', '0')
self.assertEquals(self.auditor.quarantines, pre_quarantines)
etag = md5()
etag.update('1' + '0' * 1023)
etag = etag.hexdigest()
metadata['ETag'] = etag
with self.disk_file.writer() as writer:
writer.write(data)
writer.put(metadata)
self.auditor.object_audit(
os.path.join(self.disk_file.datadir, timestamp + '.data'),
'sda', '0')
self.assertEquals(self.auditor.quarantines, pre_quarantines + 1)
def test_object_audit_no_meta(self):
timestamp = str(normalize_timestamp(time.time()))
path = os.path.join(self.disk_file.datadir, timestamp + '.data')
mkdirs(self.disk_file.datadir)
fp = open(path, 'w')
fp.write('0' * 1024)
fp.close()
invalidate_hash(os.path.dirname(self.disk_file.datadir))
self.auditor = auditor.AuditorWorker(self.conf, self.logger)
pre_quarantines = self.auditor.quarantines
self.auditor.object_audit(
os.path.join(self.disk_file.datadir, timestamp + '.data'),
'sda', '0')
self.assertEquals(self.auditor.quarantines, pre_quarantines + 1)
def test_generic_exception_handling(self):
self.auditor = auditor.AuditorWorker(self.conf, self.logger)
timestamp = str(normalize_timestamp(time.time()))
pre_errors = self.auditor.errors
data = '0' * 1024
etag = md5()
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': timestamp,
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
with mock.patch('swift.obj.diskfile.DiskFile',
lambda *_: 1 / 0):
self.auditor.audit_all_objects()
self.assertEquals(self.auditor.errors, pre_errors + 1)
def test_object_run_once_pass(self):
self.auditor = auditor.AuditorWorker(self.conf, self.logger)
self.auditor.log_time = 0
timestamp = str(normalize_timestamp(time.time()))
pre_quarantines = self.auditor.quarantines
data = '0' * 1024
etag = md5()
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': timestamp,
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
self.auditor.audit_all_objects()
self.assertEquals(self.auditor.quarantines, pre_quarantines)
self.assertEquals(self.auditor.stats_buckets[1024], 1)
self.assertEquals(self.auditor.stats_buckets[10240], 0)
def test_object_run_once_no_sda(self):
self.auditor = auditor.AuditorWorker(self.conf, self.logger)
timestamp = str(normalize_timestamp(time.time()))
pre_quarantines = self.auditor.quarantines
data = '0' * 1024
etag = md5()
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': timestamp,
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
os.write(writer.fd, 'extra_data')
self.auditor.audit_all_objects()
self.assertEquals(self.auditor.quarantines, pre_quarantines + 1)
def test_object_run_once_multi_devices(self):
self.auditor = auditor.AuditorWorker(self.conf, self.logger)
timestamp = str(normalize_timestamp(time.time()))
pre_quarantines = self.auditor.quarantines
data = '0' * 10
etag = md5()
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': timestamp,
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
self.auditor.audit_all_objects()
self.disk_file = DiskFile(self.devices, 'sdb', '0', 'a', 'c',
'ob', self.logger)
data = '1' * 10
etag = md5()
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': timestamp,
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
os.write(writer.fd, 'extra_data')
self.auditor.audit_all_objects()
self.assertEquals(self.auditor.quarantines, pre_quarantines + 1)
def test_object_run_fast_track_non_zero(self):
self.auditor = auditor.ObjectAuditor(self.conf)
self.auditor.log_time = 0
data = '0' * 1024
etag = md5()
with self.disk_file.writer() as writer:
writer.write(data)
etag.update(data)
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': str(normalize_timestamp(time.time())),
'Content-Length': str(os.fstat(writer.fd).st_size),
}
writer.put(metadata)
etag = md5()
etag.update('1' + '0' * 1023)
etag = etag.hexdigest()
metadata['ETag'] = etag
write_metadata(writer.fd, metadata)
quarantine_path = os.path.join(self.devices,
'sda', 'quarantined', 'objects')
self.auditor.run_once(zero_byte_fps=50)
self.assertFalse(os.path.isdir(quarantine_path))
self.auditor.run_once()
self.assertTrue(os.path.isdir(quarantine_path))
def setup_bad_zero_byte(self, with_ts=False):
self.auditor = auditor.ObjectAuditor(self.conf)
self.auditor.log_time = 0
ts_file_path = ''
if with_ts:
name_hash = hash_path('a', 'c', 'o')
dir_path = os.path.join(self.devices, 'sda',
storage_directory(DATADIR, '0', name_hash))
ts_file_path = os.path.join(dir_path, '99999.ts')
if not os.path.exists(dir_path):
mkdirs(dir_path)
fp = open(ts_file_path, 'w')
fp.close()
etag = md5()
with self.disk_file.writer() as writer:
etag = etag.hexdigest()
metadata = {
'ETag': etag,
'X-Timestamp': str(normalize_timestamp(time.time())),
'Content-Length': 10,
}
writer.put(metadata)
etag = md5()
etag = etag.hexdigest()
metadata['ETag'] = etag
write_metadata(writer.fd, metadata)
if self.disk_file.data_file:
return self.disk_file.data_file
return ts_file_path
def test_object_run_fast_track_all(self):
self.setup_bad_zero_byte()
self.auditor.run_once()
quarantine_path = os.path.join(self.devices,
'sda', 'quarantined', 'objects')
self.assertTrue(os.path.isdir(quarantine_path))
def test_object_run_fast_track_zero(self):
self.setup_bad_zero_byte()
self.auditor.run_once(zero_byte_fps=50)
quarantine_path = os.path.join(self.devices,
'sda', 'quarantined', 'objects')
self.assertTrue(os.path.isdir(quarantine_path))
def test_with_tombstone(self):
ts_file_path = self.setup_bad_zero_byte(with_ts=True)
self.auditor.run_once()
self.assertTrue(ts_file_path.endswith('ts'))
self.assertTrue(os.path.exists(ts_file_path))
def test_sleeper(self):
auditor.SLEEP_BETWEEN_AUDITS = 0.10
my_auditor = auditor.ObjectAuditor(self.conf)
start = time.time()
my_auditor._sleep()
delta_t = time.time() - start
self.assert_(delta_t > 0.08)
self.assert_(delta_t < 0.12)
def test_object_run_fast_track_zero_check_closed(self):
rat = [False]
class FakeFile(DiskFile):
def close(self, verify_file=True):
rat[0] = True
DiskFile.close(self, verify_file=verify_file)
self.setup_bad_zero_byte()
was_df = auditor.diskfile.DiskFile
try:
auditor.diskfile.DiskFile = FakeFile
self.auditor.run_once(zero_byte_fps=50)
quarantine_path = os.path.join(self.devices,
'sda', 'quarantined', 'objects')
self.assertTrue(os.path.isdir(quarantine_path))
self.assertTrue(rat[0])
finally:
auditor.diskfile.DiskFile = was_df
def test_run_forever(self):
class StopForever(Exception):
pass
class ObjectAuditorMock(object):
check_args = ()
check_kwargs = {}
fork_called = 0
fork_res = 0
def mock_run(self, *args, **kwargs):
self.check_args = args
self.check_kwargs = kwargs
def mock_sleep(self):
raise StopForever('stop')
def mock_fork(self):
self.fork_called += 1
return self.fork_res
my_auditor = auditor.ObjectAuditor(dict(devices=self.devices,
mount_check='false',
zero_byte_files_per_second=89))
mocker = ObjectAuditorMock()
my_auditor.run_once = mocker.mock_run
my_auditor._sleep = mocker.mock_sleep
was_fork = os.fork
try:
os.fork = mocker.mock_fork
self.assertRaises(StopForever,
my_auditor.run_forever, zero_byte_fps=50)
self.assertEquals(mocker.check_kwargs['zero_byte_fps'], 50)
self.assertEquals(mocker.fork_called, 0)
self.assertRaises(StopForever, my_auditor.run_forever)
self.assertEquals(mocker.fork_called, 1)
self.assertEquals(mocker.check_args, ())
mocker.fork_res = 1
self.assertRaises(StopForever, my_auditor.run_forever)
self.assertEquals(mocker.fork_called, 2)
self.assertEquals(mocker.check_kwargs['zero_byte_fps'], 89)
finally:
os.fork = was_fork
if __name__ == '__main__':
unittest.main()
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