# Copyright (c) 2010-2012 OpenStack Foundation # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or # implied. # See the License for the specific language governing permissions and # limitations under the License. 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, \ DATADIR, DiskFileManager, AuditLocation 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.df_mgr = DiskFileManager(self.conf, self.logger) self.disk_file = self.df_mgr.get_diskfile('sda', '0', 'a', 'c', 'o') def tearDown(self): rmtree(os.path.dirname(self.testdir), ignore_errors=1) unit.xattr_data = {} def test_object_audit_extra_data(self): auditor_worker = auditor.AuditorWorker(self.conf, self.logger) data = '0' * 1024 etag = md5() with self.disk_file.create() 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 = auditor_worker.quarantines auditor_worker.object_audit( AuditLocation(self.disk_file._datadir, 'sda', '0')) self.assertEquals(auditor_worker.quarantines, pre_quarantines) os.write(writer._fd, 'extra_data') auditor_worker.object_audit( AuditLocation(self.disk_file._datadir, 'sda', '0')) self.assertEquals(auditor_worker.quarantines, pre_quarantines + 1) def test_object_audit_diff_data(self): auditor_worker = auditor.AuditorWorker(self.conf, self.logger) data = '0' * 1024 etag = md5() timestamp = str(normalize_timestamp(time.time())) with self.disk_file.create() 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 = auditor_worker.quarantines # remake so it will have metadata self.disk_file = self.df_mgr.get_diskfile('sda', '0', 'a', 'c', 'o') auditor_worker.object_audit( AuditLocation(self.disk_file._datadir, 'sda', '0')) self.assertEquals(auditor_worker.quarantines, pre_quarantines) etag = md5() etag.update('1' + '0' * 1023) etag = etag.hexdigest() metadata['ETag'] = etag with self.disk_file.create() as writer: writer.write(data) writer.put(metadata) auditor_worker.object_audit( AuditLocation(self.disk_file._datadir, 'sda', '0')) self.assertEquals(auditor_worker.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)) auditor_worker = auditor.AuditorWorker(self.conf, self.logger) pre_quarantines = auditor_worker.quarantines auditor_worker.object_audit( AuditLocation(self.disk_file._datadir, 'sda', '0')) self.assertEquals(auditor_worker.quarantines, pre_quarantines + 1) def test_object_audit_will_not_swallow_errors_in_tests(self): timestamp = str(normalize_timestamp(time.time())) path = os.path.join(self.disk_file._datadir, timestamp + '.data') mkdirs(self.disk_file._datadir) with open(path, 'w') as f: write_metadata(f, {'name': '/a/c/o'}) auditor_worker = auditor.AuditorWorker(self.conf, self.logger) def blowup(*args): raise NameError('tpyo') with mock.patch.object(DiskFileManager, 'get_diskfile_from_audit_location', blowup): self.assertRaises(NameError, auditor_worker.object_audit, AuditLocation(os.path.dirname(path), 'sda', '0')) def test_failsafe_object_audit_will_swallow_errors_in_tests(self): timestamp = str(normalize_timestamp(time.time())) path = os.path.join(self.disk_file._datadir, timestamp + '.data') mkdirs(self.disk_file._datadir) with open(path, 'w') as f: write_metadata(f, {'name': '/a/c/o'}) auditor_worker = auditor.AuditorWorker(self.conf, self.logger) def blowup(*args): raise NameError('tpyo') with mock.patch('swift.obj.diskfile.DiskFile', blowup): auditor_worker.failsafe_object_audit( AuditLocation(os.path.dirname(path), 'sda', '0')) self.assertEquals(auditor_worker.errors, 1) def test_generic_exception_handling(self): auditor_worker = auditor.AuditorWorker(self.conf, self.logger) timestamp = str(normalize_timestamp(time.time())) pre_errors = auditor_worker.errors data = '0' * 1024 etag = md5() with self.disk_file.create() 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): auditor_worker.audit_all_objects() self.assertEquals(auditor_worker.errors, pre_errors + 1) def test_object_run_once_pass(self): auditor_worker = auditor.AuditorWorker(self.conf, self.logger) auditor_worker.log_time = 0 timestamp = str(normalize_timestamp(time.time())) pre_quarantines = auditor_worker.quarantines data = '0' * 1024 etag = md5() with self.disk_file.create() 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) auditor_worker.audit_all_objects() self.assertEquals(auditor_worker.quarantines, pre_quarantines) self.assertEquals(auditor_worker.stats_buckets[1024], 1) self.assertEquals(auditor_worker.stats_buckets[10240], 0) def test_object_run_once_no_sda(self): auditor_worker = auditor.AuditorWorker(self.conf, self.logger) timestamp = str(normalize_timestamp(time.time())) pre_quarantines = auditor_worker.quarantines data = '0' * 1024 etag = md5() with self.disk_file.create() 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') auditor_worker.audit_all_objects() self.assertEquals(auditor_worker.quarantines, pre_quarantines + 1) def test_object_run_once_multi_devices(self): auditor_worker = auditor.AuditorWorker(self.conf, self.logger) timestamp = str(normalize_timestamp(time.time())) pre_quarantines = auditor_worker.quarantines data = '0' * 10 etag = md5() with self.disk_file.create() 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) auditor_worker.audit_all_objects() self.disk_file = self.df_mgr.get_diskfile('sda', '0', 'a', 'c', 'ob') data = '1' * 10 etag = md5() with self.disk_file.create() 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') auditor_worker.audit_all_objects() self.assertEquals(auditor_worker.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.create() 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') write_metadata(fp, {'X-Timestamp': '99999', 'name': '/a/c/o'}) fp.close() etag = md5() with self.disk_file.create() 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) 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_object_run_fast_track_zero_check_closed(self): rat = [False] class FakeFile(DiskFile): def _quarantine(self, data_file, msg): rat[0] = True DiskFile._quarantine(self, data_file, msg) 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_with_tombstone(self): ts_file_path = self.setup_bad_zero_byte(with_ts=True) self.assertTrue(ts_file_path.endswith('ts')) self.auditor.run_once() 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_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()