# 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 __future__ import print_function import unittest from contextlib import contextmanager import eventlet import os import logging import errno import math import time from shutil import rmtree, copy from tempfile import mkdtemp, NamedTemporaryFile import json import mock from mock import patch, call import six from six.moves import reload_module from swift.container.backend import DATADIR from swift.common import db_replicator from swift.common.utils import (normalize_timestamp, hash_path, storage_directory, Timestamp) from swift.common.exceptions import DriveNotMounted from swift.common.swob import HTTPException from test import unit from test.debug_logger import debug_logger from test.unit import attach_fake_replication_rpc from test.unit.common.test_db import ExampleBroker TEST_ACCOUNT_NAME = 'a c t' TEST_CONTAINER_NAME = 'c o n' def teardown_module(): "clean up my monkey patching" reload_module(db_replicator) @contextmanager def lock_parent_directory(filename): yield True class FakeRing(object): class Ring(object): devs = [] def __init__(self, path, reload_time=15, ring_name=None): pass def get_part(self, account, container=None, obj=None): return 0 def get_part_nodes(self, part): return [] def get_more_nodes(self, *args): return [] class FakeRingWithSingleNode(object): class Ring(object): devs = [dict( id=1, weight=10.0, zone=1, ip='1.1.1.1', port=6200, device='sdb', meta='', replication_ip='1.1.1.1', replication_port=6200, region=1 )] def __init__(self, path, reload_time=15, ring_name=None): pass def get_part(self, account, container=None, obj=None): return 0 def get_part_nodes(self, part): return self.devs def get_more_nodes(self, *args): return (d for d in self.devs) class FakeRingWithNodes(object): class Ring(object): devs = [dict( id=1, weight=10.0, zone=1, ip='1.1.1.1', port=6200, device='sdb', meta='', replication_ip='1.1.1.1', replication_port=6200, region=1 ), dict( id=2, weight=10.0, zone=2, ip='1.1.1.2', port=6200, device='sdb', meta='', replication_ip='1.1.1.2', replication_port=6200, region=2 ), dict( id=3, weight=10.0, zone=3, ip='1.1.1.3', port=6200, device='sdb', meta='', replication_ip='1.1.1.3', replication_port=6200, region=1 ), dict( id=4, weight=10.0, zone=4, ip='1.1.1.4', port=6200, device='sdb', meta='', replication_ip='1.1.1.4', replication_port=6200, region=2 ), dict( id=5, weight=10.0, zone=5, ip='1.1.1.5', port=6200, device='sdb', meta='', replication_ip='1.1.1.5', replication_port=6200, region=1 ), dict( id=6, weight=10.0, zone=6, ip='1.1.1.6', port=6200, device='sdb', meta='', replication_ip='1.1.1.6', replication_port=6200, region=2 )] def __init__(self, path, reload_time=15, ring_name=None): pass def get_part(self, account, container=None, obj=None): return 0 def get_part_nodes(self, part): return self.devs[:3] def get_more_nodes(self, *args): return (d for d in self.devs[3:]) class FakeProcess(object): def __init__(self, *codes): self.codes = iter(codes) self.args = None self.kwargs = None def __call__(self, *args, **kwargs): self.args = args self.kwargs = kwargs class Failure(object): def communicate(innerself): next_item = next(self.codes) if isinstance(next_item, int): innerself.returncode = next_item return next_item raise next_item return Failure() @contextmanager def _mock_process(*args): orig_process = db_replicator.subprocess.Popen db_replicator.subprocess.Popen = FakeProcess(*args) yield db_replicator.subprocess.Popen db_replicator.subprocess.Popen = orig_process class ReplHttp(object): def __init__(self, response=None, set_status=200): if isinstance(response, six.text_type): response = response.encode('ascii') self.response = response self.set_status = set_status replicated = False host = 'localhost' node = { 'ip': '127.0.0.1', 'port': '6000', 'device': 'sdb', } def replicate(self, *args): self.replicated = True class Response(object): status = self.set_status data = self.response def read(innerself): return self.response return Response() class ChangingMtimesOs(object): def __init__(self): self.mtime = 0 def __call__(self, *args, **kwargs): self.mtime += 1 return self.mtime class FakeBroker(object): db_file = __file__ get_repl_missing_table = False stub_replication_info = None db_type = 'container' db_contains_type = 'object' info = {'account': TEST_ACCOUNT_NAME, 'container': TEST_CONTAINER_NAME} def __init__(self, *args, **kwargs): self.locked = False self.metadata = {} return None @contextmanager def lock(self): self.locked = True yield True self.locked = False def get_sync(self, *args, **kwargs): return 5 def get_syncs(self): return [] def get_items_since(self, point, *args): if point == 0: return [{'ROWID': 1}] if point == -1: return [{'ROWID': 1}, {'ROWID': 2}] return [] def merge_syncs(self, *args, **kwargs): self.args = args def merge_items(self, *args): self.args = args def get_replication_info(self): if self.get_repl_missing_table: raise Exception('no such table') info = dict(self.info) info.update({ 'hash': 12345, 'delete_timestamp': 0, 'put_timestamp': 1, 'created_at': 1, 'count': 0, 'max_row': 99, 'id': 'ID', 'metadata': {} }) if self.stub_replication_info: info.update(self.stub_replication_info) return info def get_max_row(self, table=None): return self.get_replication_info()['max_row'] def is_reclaimable(self, now, reclaim_age): info = self.get_replication_info() return info['count'] == 0 and ( (now - reclaim_age) > info['delete_timestamp'] > info['put_timestamp']) def get_other_replication_items(self): return None def reclaim(self, item_timestamp, sync_timestamp): pass def newid(self, remote_d): pass def update_metadata(self, metadata): self.metadata = metadata def merge_timestamps(self, created_at, put_timestamp, delete_timestamp): self.created_at = created_at self.put_timestamp = put_timestamp self.delete_timestamp = delete_timestamp def get_brokers(self): return [self] class FakeAccountBroker(FakeBroker): db_type = 'account' db_contains_type = 'container' info = {'account': TEST_ACCOUNT_NAME} class TestReplicator(db_replicator.Replicator): server_type = 'container' ring_file = 'container.ring.gz' brokerclass = FakeBroker datadir = DATADIR default_port = 1000 class TestDBReplicator(unittest.TestCase): def setUp(self): db_replicator.ring = FakeRing() self.delete_db_calls = [] self._patchers = [] # recon cache path self.recon_cache = mkdtemp() rmtree(self.recon_cache, ignore_errors=1) os.mkdir(self.recon_cache) self.logger = debug_logger('test-replicator') def tearDown(self): for patcher in self._patchers: patcher.stop() rmtree(self.recon_cache, ignore_errors=1) def _patch(self, patching_fn, *args, **kwargs): patcher = patching_fn(*args, **kwargs) patched_thing = patcher.start() self._patchers.append(patcher) return patched_thing def stub_delete_db(self, broker): self.delete_db_calls.append('/path/to/file') return True def test_creation(self): # later config should be extended to assert more config options replicator = TestReplicator({'node_timeout': '3.5'}) self.assertEqual(replicator.node_timeout, 3.5) self.assertEqual(replicator.databases_per_second, 50.0) replicator = TestReplicator({'databases_per_second': '0.1'}) self.assertEqual(replicator.node_timeout, 10) self.assertEqual(replicator.databases_per_second, 0.1) def test_repl_connection(self): node = {'replication_ip': '127.0.0.1', 'replication_port': 80, 'device': 'sdb1'} conn = db_replicator.ReplConnection(node, '1234567890', 'abcdefg', logging.getLogger()) def req(method, path, body, headers): self.assertEqual(method, 'REPLICATE') self.assertEqual(headers['Content-Type'], 'application/json') class Resp(object): def read(self): return 'data' resp = Resp() conn.request = req conn.getresponse = lambda *args: resp self.assertEqual(conn.replicate(1, 2, 3), resp) def other_req(method, path, body, headers): raise Exception('blah') conn.request = other_req self.assertIsNone(conn.replicate(1, 2, 3)) def test_rsync_file(self): replicator = TestReplicator({}) with _mock_process(-1): self.assertEqual( False, replicator._rsync_file('/some/file', 'remote:/some/file')) with _mock_process(0): self.assertEqual( True, replicator._rsync_file('/some/file', 'remote:/some/file')) def test_rsync_file_popen_args(self): replicator = TestReplicator({}) with _mock_process(0) as process: replicator._rsync_file('/some/file', 'remote:/some_file') exp_args = ([ 'rsync', '--quiet', '--no-motd', '--timeout=%s' % int(math.ceil(replicator.node_timeout)), '--contimeout=%s' % int(math.ceil(replicator.conn_timeout)), '--whole-file', '/some/file', 'remote:/some_file'],) self.assertEqual(exp_args, process.args) def test_rsync_file_popen_args_whole_file_false(self): replicator = TestReplicator({}) with _mock_process(0) as process: replicator._rsync_file('/some/file', 'remote:/some_file', False) exp_args = ([ 'rsync', '--quiet', '--no-motd', '--timeout=%s' % int(math.ceil(replicator.node_timeout)), '--contimeout=%s' % int(math.ceil(replicator.conn_timeout)), '/some/file', 'remote:/some_file'],) self.assertEqual(exp_args, process.args) def test_rsync_file_popen_args_different_region_and_rsync_compress(self): replicator = TestReplicator({}) for rsync_compress in (False, True): replicator.rsync_compress = rsync_compress for different_region in (False, True): with _mock_process(0) as process: replicator._rsync_file('/some/file', 'remote:/some_file', False, different_region) if rsync_compress and different_region: # --compress arg should be passed to rsync binary # only when rsync_compress option is enabled # AND destination node is in a different # region self.assertTrue('--compress' in process.args[0]) else: self.assertFalse('--compress' in process.args[0]) def test_rsync_db(self): replicator = TestReplicator({}) replicator._rsync_file = lambda *args, **kwargs: True fake_device = {'replication_ip': '127.0.0.1', 'device': 'sda1'} replicator._rsync_db(FakeBroker(), fake_device, ReplHttp(), 'abcd') def test_rsync_db_rsync_file_call(self): fake_device = {'ip': '127.0.0.1', 'port': '0', 'replication_ip': '127.0.0.1', 'replication_port': '0', 'device': 'sda1'} class MyTestReplicator(TestReplicator): def __init__(self, db_file, remote_file): super(MyTestReplicator, self).__init__({}) self.db_file = db_file self.remote_file = remote_file def _rsync_file(self_, db_file, remote_file, whole_file=True, different_region=False): self.assertEqual(self_.db_file, db_file) self.assertEqual(self_.remote_file, remote_file) self_._rsync_file_called = True return False broker = FakeBroker() remote_file = '127.0.0.1::container/sda1/tmp/abcd' replicator = MyTestReplicator(broker.db_file, remote_file) replicator._rsync_db(broker, fake_device, ReplHttp(), 'abcd') self.assertTrue(replicator._rsync_file_called) def test_rsync_db_rsync_file_failure(self): class MyTestReplicator(TestReplicator): def __init__(self): super(MyTestReplicator, self).__init__({}) self._rsync_file_called = False def _rsync_file(self_, *args, **kwargs): self.assertEqual( False, self_._rsync_file_called, '_sync_file() should only be called once') self_._rsync_file_called = True return False with patch('os.path.exists', lambda *args: True): replicator = MyTestReplicator() fake_device = {'ip': '127.0.0.1', 'replication_ip': '127.0.0.1', 'device': 'sda1'} replicator._rsync_db(FakeBroker(), fake_device, ReplHttp(), 'abcd') self.assertEqual(True, replicator._rsync_file_called) def test_rsync_db_change_after_sync(self): class MyTestReplicator(TestReplicator): def __init__(self, broker): super(MyTestReplicator, self).__init__({}) self.broker = broker self._rsync_file_call_count = 0 def _rsync_file(self_, db_file, remote_file, whole_file=True, different_region=False): self_._rsync_file_call_count += 1 if self_._rsync_file_call_count == 1: self.assertEqual(True, whole_file) self.assertEqual(False, self_.broker.locked) elif self_._rsync_file_call_count == 2: self.assertEqual(False, whole_file) self.assertEqual(True, self_.broker.locked) else: raise RuntimeError('_rsync_file() called too many times') return True # with journal file with patch('os.path.exists', lambda *args: True): broker = FakeBroker() replicator = MyTestReplicator(broker) fake_device = {'ip': '127.0.0.1', 'replication_ip': '127.0.0.1', 'device': 'sda1'} replicator._rsync_db(broker, fake_device, ReplHttp(), 'abcd') self.assertEqual(2, replicator._rsync_file_call_count) # with new mtime with patch('os.path.exists', lambda *args: False): with patch('os.path.getmtime', ChangingMtimesOs()): broker = FakeBroker() replicator = MyTestReplicator(broker) fake_device = {'ip': '127.0.0.1', 'replication_ip': '127.0.0.1', 'device': 'sda1'} replicator._rsync_db(broker, fake_device, ReplHttp(), 'abcd') self.assertEqual(2, replicator._rsync_file_call_count) def test_in_sync(self): replicator = TestReplicator({}) self.assertEqual(replicator._in_sync( {'id': 'a', 'point': 0, 'max_row': 0, 'hash': 'b'}, {'id': 'a', 'point': -1, 'max_row': 0, 'hash': 'b'}, FakeBroker(), -1), True) self.assertEqual(replicator._in_sync( {'id': 'a', 'point': -1, 'max_row': 0, 'hash': 'b'}, {'id': 'a', 'point': -1, 'max_row': 10, 'hash': 'b'}, FakeBroker(), -1), True) self.assertEqual(bool(replicator._in_sync( {'id': 'a', 'point': -1, 'max_row': 0, 'hash': 'c'}, {'id': 'a', 'point': -1, 'max_row': 10, 'hash': 'd'}, FakeBroker(), -1)), False) def test_run_once_no_local_device_in_ring(self): replicator = TestReplicator({'recon_cache_path': self.recon_cache}, logger=self.logger) with patch('swift.common.db_replicator.whataremyips', return_value=['127.0.0.1']): replicator.run_once() expected = [ "Can't find itself 127.0.0.1 with port 1000 " "in ring file, not replicating", ] self.assertEqual(expected, self.logger.get_lines_for_level('error')) def test_run_once_with_local_device_in_ring(self): base = 'swift.common.db_replicator.' with patch(base + 'whataremyips', return_value=['1.1.1.1']), \ patch(base + 'ring', FakeRingWithNodes()): replicator = TestReplicator({'bind_port': 6200, 'recon_cache_path': self.recon_cache}, logger=self.logger) replicator.run_once() self.assertFalse(self.logger.get_lines_for_level('error')) def test_run_once_no_ips(self): replicator = TestReplicator({}, logger=self.logger) self._patch(patch.object, db_replicator, 'whataremyips', lambda *a, **kw: []) replicator.run_once() self.assertEqual( replicator.logger.get_lines_for_level('error'), ['ERROR Failed to get my own IPs?']) def test_run_once_node_is_not_mounted(self): db_replicator.ring = FakeRingWithSingleNode() # If a bind_ip is specified, it's plumbed into whataremyips() and # returned by itself. conf = {'mount_check': 'true', 'bind_ip': '1.1.1.1', 'bind_port': 6200} replicator = TestReplicator(conf, logger=self.logger) self.assertEqual(replicator.mount_check, True) self.assertEqual(replicator.port, 6200) err = ValueError('Boom!') def mock_check_drive(root, device, mount_check): self.assertEqual(root, replicator.root) self.assertEqual(device, replicator.ring.devs[0]['device']) self.assertEqual(mount_check, True) raise err self._patch(patch.object, db_replicator, 'check_drive', mock_check_drive) replicator.run_once() self.assertEqual( replicator.logger.get_lines_for_level('warning'), ['Skipping: %s' % (err,)]) def test_run_once_node_is_mounted(self): db_replicator.ring = FakeRingWithSingleNode() conf = {'mount_check': 'true', 'bind_port': 6200} replicator = TestReplicator(conf, logger=self.logger) self.assertEqual(replicator.mount_check, True) self.assertEqual(replicator.port, 6200) def mock_unlink_older_than(path, mtime): self.assertEqual(path, os.path.join(replicator.root, replicator.ring.devs[0]['device'], 'tmp')) self.assertTrue(time.time() - replicator.reclaim_age >= mtime) def mock_spawn_n(fn, part, object_file, node_id): self.assertEqual('123', part) self.assertEqual('/srv/node/sda/c.db', object_file) self.assertEqual(1, node_id) self._patch(patch.object, db_replicator, 'whataremyips', lambda *a, **kw: ['1.1.1.1']) self._patch(patch.object, db_replicator, 'unlink_older_than', mock_unlink_older_than) self._patch(patch.object, db_replicator, 'roundrobin_datadirs', lambda *args: [('123', '/srv/node/sda/c.db', 1)]) self._patch(patch.object, replicator.cpool, 'spawn_n', mock_spawn_n) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(ismount=True) as mocks: mock_os.path.isdir.return_value = True replicator.run_once() mock_os.path.isdir.assert_called_with( os.path.join(replicator.root, replicator.ring.devs[0]['device'], replicator.datadir)) self.assertEqual([ mock.call(os.path.join( replicator.root, replicator.ring.devs[0]['device'])), ], mocks['ismount'].call_args_list) def test_usync(self): fake_http = ReplHttp() replicator = TestReplicator({}) replicator._usync_db(0, FakeBroker(), fake_http, '12345', '67890') def test_usync_http_error_above_300(self): fake_http = ReplHttp(set_status=301) replicator = TestReplicator({}) self.assertFalse( replicator._usync_db(0, FakeBroker(), fake_http, '12345', '67890')) def test_usync_http_error_below_200(self): fake_http = ReplHttp(set_status=101) replicator = TestReplicator({}) self.assertFalse( replicator._usync_db(0, FakeBroker(), fake_http, '12345', '67890')) @mock.patch('swift.common.db_replicator.dump_recon_cache') @mock.patch('swift.common.db_replicator.time.time', return_value=1234.5678) def test_stats(self, mock_time, mock_recon_cache): replicator = TestReplicator({}, logger=self.logger) replicator._zero_stats() self.assertEqual(replicator.stats['start'], mock_time.return_value) replicator._report_stats() self.assertEqual(self.logger.get_lines_for_level('info'), [ 'Attempted to replicate 0 dbs in 0.00000 seconds (0.00000/s)', 'Removed 0 dbs', '0 successes, 0 failures', 'diff:0 diff_capped:0 empty:0 hashmatch:0 no_change:0 ' 'remote_merge:0 rsync:0 ts_repl:0', ]) self.assertEqual(1, len(mock_recon_cache.mock_calls)) self.assertEqual(mock_recon_cache.mock_calls[0][1][0], { 'replication_time': 0.0, 'replication_last': mock_time.return_value, 'replication_stats': replicator.stats, }) mock_recon_cache.reset_mock() self.logger.clear() replicator.stats.update({ 'attempted': 30, 'success': 25, 'remove': 9, 'failure': 1, 'diff': 5, 'diff_capped': 4, 'empty': 7, 'hashmatch': 8, 'no_change': 6, 'remote_merge': 2, 'rsync': 3, 'ts_repl': 10, }) mock_time.return_value += 246.813576 replicator._report_stats() self.maxDiff = None self.assertEqual(self.logger.get_lines_for_level('info'), [ 'Attempted to replicate 30 dbs in 246.81358 seconds (0.12155/s)', 'Removed 9 dbs', '25 successes, 1 failures', 'diff:5 diff_capped:4 empty:7 hashmatch:8 no_change:6 ' 'remote_merge:2 rsync:3 ts_repl:10', ]) self.assertEqual(1, len(mock_recon_cache.mock_calls)) self.assertEqual(mock_recon_cache.mock_calls[0][1][0], { 'replication_time': 246.813576, 'replication_last': mock_time.return_value, 'replication_stats': replicator.stats, }) def test_replicate_object(self): # verify return values from replicate_object db_replicator.ring = FakeRingWithNodes() db_path = '/path/to/file' replicator = TestReplicator({}, logger=self.logger) info = FakeBroker().get_replication_info() # make remote appear to be in sync rinfo = {'point': info['max_row'], 'id': 'remote_id'} class FakeResponse(object): def __init__(self, status, rinfo): self._status = status self.data = json.dumps(rinfo).encode('ascii') @property def status(self): if isinstance(self._status, (Exception, eventlet.Timeout)): raise self._status return self._status # all requests fail replicate = 'swift.common.db_replicator.ReplConnection.replicate' with mock.patch(replicate) as fake_replicate: fake_replicate.side_effect = [ FakeResponse(500, None), FakeResponse(500, None), FakeResponse(500, None)] with mock.patch.object(replicator, 'delete_db') as mock_delete: res = replicator._replicate_object('0', db_path, 'node_id') self.assertRaises(StopIteration, next, fake_replicate.side_effect) self.assertEqual((False, [False, False, False]), res) self.assertEqual(0, mock_delete.call_count) self.assertFalse(replicator.logger.get_lines_for_level('error')) self.assertFalse(replicator.logger.get_lines_for_level('warning')) replicator.logger.clear() with mock.patch(replicate) as fake_replicate: fake_replicate.side_effect = [ FakeResponse(Exception('ugh'), None), FakeResponse(eventlet.Timeout(), None), FakeResponse(200, rinfo)] with mock.patch.object(replicator, 'delete_db') as mock_delete: res = replicator._replicate_object('0', db_path, 'node_id') self.assertRaises(StopIteration, next, fake_replicate.side_effect) self.assertEqual((False, [False, False, True]), res) self.assertEqual(0, mock_delete.call_count) lines = replicator.logger.get_lines_for_level('error') self.assertIn('ERROR syncing', lines[0]) self.assertIn('ERROR syncing', lines[1]) self.assertFalse(lines[2:]) self.assertFalse(replicator.logger.get_lines_for_level('warning')) replicator.logger.clear() # partial success with mock.patch(replicate) as fake_replicate: fake_replicate.side_effect = [ FakeResponse(200, rinfo), FakeResponse(200, rinfo), FakeResponse(500, None)] with mock.patch.object(replicator, 'delete_db') as mock_delete: res = replicator._replicate_object('0', db_path, 'node_id') self.assertRaises(StopIteration, next, fake_replicate.side_effect) self.assertEqual((False, [True, True, False]), res) self.assertEqual(0, mock_delete.call_count) self.assertFalse(replicator.logger.get_lines_for_level('error')) self.assertFalse(replicator.logger.get_lines_for_level('warning')) replicator.logger.clear() # 507 triggers additional requests with mock.patch(replicate) as fake_replicate: fake_replicate.side_effect = [ FakeResponse(200, rinfo), FakeResponse(200, rinfo), FakeResponse(507, None), FakeResponse(507, None), FakeResponse(200, rinfo)] with mock.patch.object(replicator, 'delete_db') as mock_delete: res = replicator._replicate_object('0', db_path, 'node_id') self.assertRaises(StopIteration, next, fake_replicate.side_effect) self.assertEqual((False, [True, True, False, False, True]), res) self.assertEqual(0, mock_delete.call_count) lines = replicator.logger.get_lines_for_level('error') self.assertIn('Remote drive not mounted', lines[0]) self.assertIn('Remote drive not mounted', lines[1]) self.assertFalse(lines[2:]) self.assertFalse(replicator.logger.get_lines_for_level('warning')) replicator.logger.clear() # all requests succeed; node id == 'node_id' causes node to be # considered a handoff so expect the db to be deleted with mock.patch(replicate) as fake_replicate: fake_replicate.side_effect = [ FakeResponse(200, rinfo), FakeResponse(200, rinfo), FakeResponse(200, rinfo)] with mock.patch.object(replicator, 'delete_db') as mock_delete: res = replicator._replicate_object('0', db_path, 'node_id') self.assertRaises(StopIteration, next, fake_replicate.side_effect) self.assertEqual((True, [True, True, True]), res) self.assertEqual(1, mock_delete.call_count) self.assertFalse(replicator.logger.get_lines_for_level('error')) self.assertFalse(replicator.logger.get_lines_for_level('warning')) def test_replicate_object_quarantine(self): replicator = TestReplicator({}) self._patch(patch.object, replicator.brokerclass, 'db_file', '/a/b/c/d/e/hey') self._patch(patch.object, replicator.brokerclass, 'get_repl_missing_table', True) def mock_renamer(was, new, fsync=False, cause_colision=False): if cause_colision and '-' not in new: raise OSError(errno.EEXIST, "File already exists") self.assertEqual('/a/b/c/d/e', was) if '-' in new: self.assertTrue( new.startswith('/a/quarantined/containers/e-')) else: self.assertEqual('/a/quarantined/containers/e', new) def mock_renamer_error(was, new, fsync): return mock_renamer(was, new, fsync, cause_colision=True) with patch.object(db_replicator, 'renamer', mock_renamer): replicator._replicate_object('0', 'file', 'node_id') # try the double quarantine with patch.object(db_replicator, 'renamer', mock_renamer_error): replicator._replicate_object('0', 'file', 'node_id') def test_replicate_object_delete_because_deleted(self): replicator = TestReplicator({}) try: replicator.delete_db = self.stub_delete_db replicator.brokerclass.stub_replication_info = { 'delete_timestamp': 2, 'put_timestamp': 1} replicator._replicate_object('0', '/path/to/file', 'node_id') finally: replicator.brokerclass.stub_replication_info = None self.assertEqual(['/path/to/file'], self.delete_db_calls) def test_replicate_object_delete_because_not_shouldbehere(self): replicator = TestReplicator({}) replicator.ring = FakeRingWithNodes().Ring('path') replicator.brokerclass = FakeAccountBroker replicator._repl_to_node = lambda *args: True replicator.delete_db = self.stub_delete_db orig_cleanup = replicator.cleanup_post_replicate with mock.patch.object(replicator, 'cleanup_post_replicate', side_effect=orig_cleanup) as mock_cleanup: replicator._replicate_object('0', '/path/to/file', 'node_id') mock_cleanup.assert_called_once_with(mock.ANY, mock.ANY, [True] * 3) self.assertIsInstance(mock_cleanup.call_args[0][0], replicator.brokerclass) self.assertEqual(['/path/to/file'], self.delete_db_calls) self.assertEqual(0, replicator.stats['failure']) def test_replicate_object_delete_delegated_to_cleanup_post_replicate(self): replicator = TestReplicator({}) replicator.ring = FakeRingWithNodes().Ring('path') replicator.brokerclass = FakeAccountBroker replicator._repl_to_node = lambda *args: True replicator.delete_db = self.stub_delete_db # cleanup succeeds with mock.patch.object(replicator, 'cleanup_post_replicate', return_value=True) as mock_cleanup: replicator._replicate_object('0', '/path/to/file', 'node_id') mock_cleanup.assert_called_once_with(mock.ANY, mock.ANY, [True] * 3) self.assertIsInstance(mock_cleanup.call_args[0][0], replicator.brokerclass) self.assertFalse(self.delete_db_calls) self.assertEqual(0, replicator.stats['failure']) self.assertEqual(3, replicator.stats['success']) # cleanup fails replicator._zero_stats() with mock.patch.object(replicator, 'cleanup_post_replicate', return_value=False) as mock_cleanup: replicator._replicate_object('0', '/path/to/file', 'node_id') mock_cleanup.assert_called_once_with(mock.ANY, mock.ANY, [True] * 3) self.assertIsInstance(mock_cleanup.call_args[0][0], replicator.brokerclass) self.assertFalse(self.delete_db_calls) self.assertEqual(3, replicator.stats['failure']) self.assertEqual(0, replicator.stats['success']) # shouldbehere True - cleanup not required replicator._zero_stats() primary_node_id = replicator.ring.get_part_nodes('0')[0]['id'] with mock.patch.object(replicator, 'cleanup_post_replicate', return_value=True) as mock_cleanup: replicator._replicate_object('0', '/path/to/file', primary_node_id) mock_cleanup.assert_not_called() self.assertFalse(self.delete_db_calls) self.assertEqual(0, replicator.stats['failure']) self.assertEqual(2, replicator.stats['success']) def test_cleanup_post_replicate(self): replicator = TestReplicator({}, logger=self.logger) replicator.ring = FakeRingWithNodes().Ring('path') broker = FakeBroker() replicator._repl_to_node = lambda *args: True info = broker.get_replication_info() with mock.patch.object(replicator, 'delete_db') as mock_delete_db: res = replicator.cleanup_post_replicate( broker, info, [False] * 3) mock_delete_db.assert_not_called() self.assertTrue(res) self.assertEqual(['Not deleting db %s (0/3 success)' % broker.db_file], replicator.logger.get_lines_for_level('debug')) replicator.logger.clear() with mock.patch.object(replicator, 'delete_db') as mock_delete_db: res = replicator.cleanup_post_replicate( broker, info, [True, False, True]) mock_delete_db.assert_not_called() self.assertTrue(res) self.assertEqual(['Not deleting db %s (2/3 success)' % broker.db_file], replicator.logger.get_lines_for_level('debug')) replicator.logger.clear() broker.stub_replication_info = {'max_row': 101} with mock.patch.object(replicator, 'delete_db') as mock_delete_db: res = replicator.cleanup_post_replicate( broker, info, [True] * 3) mock_delete_db.assert_not_called() self.assertTrue(res) self.assertEqual(['Not deleting db %s (2 new rows)' % broker.db_file], replicator.logger.get_lines_for_level('debug')) replicator.logger.clear() broker.stub_replication_info = {'max_row': 98} with mock.patch.object(replicator, 'delete_db') as mock_delete_db: res = replicator.cleanup_post_replicate( broker, info, [True] * 3) mock_delete_db.assert_not_called() self.assertTrue(res) broker.stub_replication_info = None self.assertEqual(['Not deleting db %s (negative max_row_delta: -1)' % broker.db_file], replicator.logger.get_lines_for_level('error')) replicator.logger.clear() with mock.patch.object(replicator, 'delete_db') as mock_delete_db: res = replicator.cleanup_post_replicate( broker, info, [True] * 3) mock_delete_db.assert_called_once_with(broker) self.assertTrue(res) self.assertEqual(['Successfully deleted db %s' % broker.db_file], replicator.logger.get_lines_for_level('debug')) replicator.logger.clear() with mock.patch.object(replicator, 'delete_db', return_value=False) as mock_delete_db: res = replicator.cleanup_post_replicate( broker, info, [True] * 3) mock_delete_db.assert_called_once_with(broker) self.assertFalse(res) self.assertEqual(['Failed to delete db %s' % broker.db_file], replicator.logger.get_lines_for_level('debug')) replicator.logger.clear() def test_replicate_object_with_exception(self): replicator = TestReplicator({}) replicator.ring = FakeRingWithNodes().Ring('path') replicator.brokerclass = FakeAccountBroker replicator.delete_db = self.stub_delete_db replicator._repl_to_node = mock.Mock(side_effect=Exception()) replicator._replicate_object('0', '/path/to/file', replicator.ring.devs[0]['id']) self.assertEqual(2, replicator._repl_to_node.call_count) # with one DriveNotMounted exception called on +1 more replica replicator._repl_to_node = mock.Mock(side_effect=[DriveNotMounted()]) replicator._replicate_object('0', '/path/to/file', replicator.ring.devs[0]['id']) self.assertEqual(3, replicator._repl_to_node.call_count) # called on +1 more replica and self when *first* handoff replicator._repl_to_node = mock.Mock(side_effect=[DriveNotMounted()]) replicator._replicate_object('0', '/path/to/file', replicator.ring.devs[3]['id']) self.assertEqual(4, replicator._repl_to_node.call_count) # even if it's the last handoff it works to keep 3 replicas # 2 primaries + 1 handoff replicator._repl_to_node = mock.Mock(side_effect=[DriveNotMounted()]) replicator._replicate_object('0', '/path/to/file', replicator.ring.devs[-1]['id']) self.assertEqual(4, replicator._repl_to_node.call_count) # with two DriveNotMounted exceptions called on +2 more replica keeping # durability replicator._repl_to_node = mock.Mock( side_effect=[DriveNotMounted()] * 2) replicator._replicate_object('0', '/path/to/file', replicator.ring.devs[0]['id']) self.assertEqual(4, replicator._repl_to_node.call_count) def test_replicate_object_with_exception_run_out_of_nodes(self): replicator = TestReplicator({}) replicator.ring = FakeRingWithNodes().Ring('path') replicator.brokerclass = FakeAccountBroker replicator.delete_db = self.stub_delete_db # all other devices are not mounted replicator._repl_to_node = mock.Mock(side_effect=DriveNotMounted()) replicator._replicate_object('0', '/path/to/file', replicator.ring.devs[0]['id']) self.assertEqual(5, replicator._repl_to_node.call_count) def test_replicate_account_out_of_place(self): replicator = TestReplicator({}, logger=self.logger) replicator.ring = FakeRingWithNodes().Ring('path') replicator.brokerclass = FakeAccountBroker replicator._repl_to_node = lambda *args: True replicator.delete_db = self.stub_delete_db # Correct node_id, wrong part part = replicator.ring.get_part(TEST_ACCOUNT_NAME) + 1 node_id = replicator.ring.get_part_nodes(part)[0]['id'] replicator._replicate_object(str(part), '/path/to/file', node_id) self.assertEqual(['/path/to/file'], self.delete_db_calls) error_msgs = replicator.logger.get_lines_for_level('error') expected = 'Found /path/to/file for /a%20c%20t when it should be ' \ 'on partition 0; will replicate out and remove.' self.assertEqual(error_msgs, [expected]) def test_replicate_container_out_of_place(self): replicator = TestReplicator({}, logger=self.logger) replicator.ring = FakeRingWithNodes().Ring('path') replicator._repl_to_node = lambda *args: True replicator.delete_db = self.stub_delete_db # Correct node_id, wrong part part = replicator.ring.get_part( TEST_ACCOUNT_NAME, TEST_CONTAINER_NAME) + 1 node_id = replicator.ring.get_part_nodes(part)[0]['id'] replicator._replicate_object(str(part), '/path/to/file', node_id) self.assertEqual(['/path/to/file'], self.delete_db_calls) self.assertEqual( replicator.logger.get_lines_for_level('error'), ['Found /path/to/file for /a%20c%20t/c%20o%20n when it should ' 'be on partition 0; will replicate out and remove.']) def test_replicate_container_out_of_place_no_node(self): replicator = TestReplicator({}, logger=self.logger) replicator.ring = FakeRingWithSingleNode().Ring('path') replicator._repl_to_node = lambda *args: True replicator.delete_db = self.stub_delete_db # Correct node_id, wrong part part = replicator.ring.get_part( TEST_ACCOUNT_NAME, TEST_CONTAINER_NAME) + 1 node_id = replicator.ring.get_part_nodes(part)[0]['id'] replicator._replicate_object(str(part), '/path/to/file', node_id) self.assertEqual(['/path/to/file'], self.delete_db_calls) self.delete_db_calls = [] # No nodes this time replicator.ring.get_part_nodes = lambda *args: [] replicator.delete_db = self.stub_delete_db # Correct node_id, wrong part part = replicator.ring.get_part( TEST_ACCOUNT_NAME, TEST_CONTAINER_NAME) + 1 replicator._replicate_object(str(part), '/path/to/file', node_id) self.assertEqual([], self.delete_db_calls) def test_replicate_object_different_region(self): db_replicator.ring = FakeRingWithNodes() replicator = TestReplicator({}) replicator._repl_to_node = mock.Mock() # For node_id = 1, one replica in same region(1) and other is in a # different region(2). Refer: FakeRingWithNodes replicator._replicate_object('0', '/path/to/file', 1) # different_region was set True and passed to _repl_to_node() self.assertEqual(replicator._repl_to_node.call_args_list[0][0][-1], True) # different_region was set False and passed to _repl_to_node() self.assertEqual(replicator._repl_to_node.call_args_list[1][0][-1], False) def test_delete_db(self): db_replicator.lock_parent_directory = lock_parent_directory replicator = TestReplicator({}, logger=self.logger) replicator._zero_stats() replicator.extract_device = lambda _: 'some_device' temp_dir = mkdtemp() try: temp_suf_dir = os.path.join(temp_dir, '16e') os.mkdir(temp_suf_dir) temp_hash_dir = os.path.join(temp_suf_dir, '166e33924a08ede4204871468c11e16e') os.mkdir(temp_hash_dir) temp_file = NamedTemporaryFile(dir=temp_hash_dir, delete=False) temp_hash_dir2 = os.path.join(temp_suf_dir, '266e33924a08ede4204871468c11e16e') os.mkdir(temp_hash_dir2) temp_file2 = NamedTemporaryFile(dir=temp_hash_dir2, delete=False) # sanity-checks self.assertTrue(os.path.exists(temp_dir)) self.assertTrue(os.path.exists(temp_suf_dir)) self.assertTrue(os.path.exists(temp_hash_dir)) self.assertTrue(os.path.exists(temp_file.name)) self.assertTrue(os.path.exists(temp_hash_dir2)) self.assertTrue(os.path.exists(temp_file2.name)) self.assertEqual(0, replicator.stats['remove']) temp_file.db_file = temp_file.name replicator.delete_db(temp_file) self.assertTrue(os.path.exists(temp_dir)) self.assertTrue(os.path.exists(temp_suf_dir)) self.assertFalse(os.path.exists(temp_hash_dir)) self.assertFalse(os.path.exists(temp_file.name)) self.assertTrue(os.path.exists(temp_hash_dir2)) self.assertTrue(os.path.exists(temp_file2.name)) self.assertEqual([(('removes.some_device',), {})], replicator.logger.log_dict['increment']) self.assertEqual(1, replicator.stats['remove']) temp_file2.db_file = temp_file2.name replicator.delete_db(temp_file2) self.assertTrue(os.path.exists(temp_dir)) self.assertFalse(os.path.exists(temp_suf_dir)) self.assertFalse(os.path.exists(temp_hash_dir)) self.assertFalse(os.path.exists(temp_file.name)) self.assertFalse(os.path.exists(temp_hash_dir2)) self.assertFalse(os.path.exists(temp_file2.name)) self.assertEqual([(('removes.some_device',), {})] * 2, replicator.logger.log_dict['increment']) self.assertEqual(2, replicator.stats['remove']) finally: rmtree(temp_dir) def test_extract_device(self): replicator = TestReplicator({'devices': '/some/root'}) self.assertEqual('some_device', replicator.extract_device( '/some/root/some_device/deeper/and/deeper')) self.assertEqual('UNKNOWN', replicator.extract_device( '/some/foo/some_device/deeper/and/deeper')) def test_dispatch_no_arg_pop(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) with unit.mock_check_drive(isdir=True): response = rpc.dispatch(('a',), 'arg') self.assertEqual(b'Invalid object type', response.body) self.assertEqual(400, response.status_int) def test_dispatch_drive_not_mounted(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=True) with unit.mock_check_drive() as mocks: response = rpc.dispatch(('drive', 'part', 'hash'), ['method']) self.assertEqual([mock.call(os.path.join('/drive'))], mocks['ismount'].call_args_list) self.assertEqual('507 drive is not mounted', response.status) self.assertEqual(507, response.status_int) def test_dispatch_unexpected_operation_db_does_not_exist(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) def mock_mkdirs(path): self.assertEqual('/drive/tmp', path) self._patch(patch.object, db_replicator, 'mkdirs', mock_mkdirs) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = False response = rpc.dispatch(('drive', 'part', 'hash'), ['unexpected']) self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) def test_dispatch_operation_unexpected(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) self._patch(patch.object, db_replicator, 'mkdirs', lambda *args: True) def unexpected_method(broker, args): self.assertEqual(FakeBroker, broker.__class__) self.assertEqual(['arg1', 'arg2'], args) return 'unexpected-called' rpc.unexpected = unexpected_method with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = True response = rpc.dispatch(('drive', 'part', 'hash'), ['unexpected', 'arg1', 'arg2']) mock_os.path.exists.assert_called_with('/part/ash/hash/hash.db') self.assertEqual('unexpected-called', response) def test_dispatch_operation_rsync_then_merge(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) self._patch(patch.object, db_replicator, 'renamer', lambda *args: True) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = True response = rpc.dispatch(('drive', 'part', 'hash'), ['rsync_then_merge', 'arg1', 'arg2']) expected_calls = [call('/part/ash/hash/hash.db'), call('/drive/tmp/arg1'), call(FakeBroker.db_file), call('/drive/tmp/arg1')] self.assertEqual(mock_os.path.exists.call_args_list, expected_calls) self.assertEqual('204 No Content', response.status) self.assertEqual(204, response.status_int) def test_dispatch_operation_complete_rsync(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) self._patch(patch.object, db_replicator, 'renamer', lambda *args: True) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.side_effect = [False, True] response = rpc.dispatch(('drive', 'part', 'hash'), ['complete_rsync', 'arg1']) expected_calls = [call('/part/ash/hash/hash.db'), call('/drive/tmp/arg1')] self.assertEqual(mock_os.path.exists.call_args_list, expected_calls) self.assertEqual('204 No Content', response.status) self.assertEqual(204, response.status_int) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.side_effect = [False, True] response = rpc.dispatch(('drive', 'part', 'hash'), ['complete_rsync', 'arg1', 'arg2']) expected_calls = [call('/part/ash/hash/arg2'), call('/drive/tmp/arg1')] self.assertEqual(mock_os.path.exists.call_args_list, expected_calls) self.assertEqual('204 No Content', response.status) self.assertEqual(204, response.status_int) def test_rsync_then_merge_db_does_not_exist(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = False response = rpc.rsync_then_merge('drive', '/data/db.db', ('arg1', 'arg2')) mock_os.path.exists.assert_called_with('/data/db.db') self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) def test_rsync_then_merge_old_does_not_exist(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.side_effect = [True, False] response = rpc.rsync_then_merge('drive', '/data/db.db', ('arg1', 'arg2')) expected_calls = [call('/data/db.db'), call('/drive/tmp/arg1')] self.assertEqual(mock_os.path.exists.call_args_list, expected_calls) self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) def test_rsync_then_merge_with_objects(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) def mock_renamer(old, new): self.assertEqual('/drive/tmp/arg1', old) # FakeBroker uses module filename as db_file! self.assertEqual(__file__, new) self._patch(patch.object, db_replicator, 'renamer', mock_renamer) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = True response = rpc.rsync_then_merge('drive', '/data/db.db', ['arg1', 'arg2']) self.assertEqual('204 No Content', response.status) self.assertEqual(204, response.status_int) def test_complete_rsync_db_exists(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = True response = rpc.complete_rsync('drive', '/data/db.db', ['arg1']) mock_os.path.exists.assert_called_with('/data/db.db') self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = True response = rpc.complete_rsync('drive', '/data/db.db', ['arg1', 'arg2']) mock_os.path.exists.assert_called_with('/data/arg2') self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) def test_complete_rsync_old_file_does_not_exist(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = False response = rpc.complete_rsync('drive', '/data/db.db', ['arg1']) expected_calls = [call('/data/db.db'), call('/drive/tmp/arg1')] self.assertEqual(expected_calls, mock_os.path.exists.call_args_list) self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.return_value = False response = rpc.complete_rsync('drive', '/data/db.db', ['arg1', 'arg2']) expected_calls = [call('/data/arg2'), call('/drive/tmp/arg1')] self.assertEqual(expected_calls, mock_os.path.exists.call_args_list) self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) def test_complete_rsync_rename(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) def mock_renamer(old, new): renamer_calls.append((old, new)) self._patch(patch.object, db_replicator, 'renamer', mock_renamer) renamer_calls = [] with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.side_effect = [False, True] response = rpc.complete_rsync('drive', '/data/db.db', ['arg1']) self.assertEqual('204 No Content', response.status) self.assertEqual(204, response.status_int) self.assertEqual(('/drive/tmp/arg1', '/data/db.db'), renamer_calls[0]) self.assertFalse(renamer_calls[1:]) renamer_calls = [] with patch('swift.common.db_replicator.os', new=mock.MagicMock(wraps=os)) as mock_os, \ unit.mock_check_drive(isdir=True): mock_os.path.exists.side_effect = [False, True] response = rpc.complete_rsync('drive', '/data/db.db', ['arg1', 'arg2']) self.assertEqual('204 No Content', response.status) self.assertEqual(204, response.status_int) self.assertEqual(('/drive/tmp/arg1', '/data/arg2'), renamer_calls[0]) self.assertFalse(renamer_calls[1:]) def test_replicator_sync_with_broker_replication_missing_table(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False, logger=self.logger) broker = FakeBroker() broker.get_repl_missing_table = True called = [] def mock_quarantine_db(object_file, server_type): called.append(True) self.assertEqual(broker.db_file, object_file) self.assertEqual(broker.db_type, server_type) self._patch(patch.object, db_replicator, 'quarantine_db', mock_quarantine_db) with unit.mock_check_drive(isdir=True): response = rpc.sync(broker, ('remote_sync', 'hash_', 'id_', 'created_at', 'put_timestamp', 'delete_timestamp', 'metadata')) self.assertEqual('404 Not Found', response.status) self.assertEqual(404, response.status_int) self.assertEqual(called, [True]) errors = rpc.logger.get_lines_for_level('error') self.assertEqual(errors, ["Unable to decode remote metadata 'metadata'", "Quarantining DB %s" % broker]) def test_replicator_sync(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) broker = FakeBroker() with unit.mock_check_drive(isdir=True): response = rpc.sync(broker, ( broker.get_sync() + 1, 12345, 'id_', 'created_at', 'put_timestamp', 'delete_timestamp', '{"meta1": "data1", "meta2": "data2"}')) self.assertEqual({'meta1': 'data1', 'meta2': 'data2'}, broker.metadata) self.assertEqual('created_at', broker.created_at) self.assertEqual('put_timestamp', broker.put_timestamp) self.assertEqual('delete_timestamp', broker.delete_timestamp) self.assertEqual('200 OK', response.status) self.assertEqual(200, response.status_int) def test_rsync_then_merge(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) with unit.mock_check_drive(isdir=True): rpc.rsync_then_merge('sda1', '/srv/swift/blah', ('a', 'b')) def test_merge_items(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) fake_broker = FakeBroker() args = ('a', 'b') with unit.mock_check_drive(isdir=True): rpc.merge_items(fake_broker, args) self.assertEqual(fake_broker.args, args) def test_merge_syncs(self): rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) fake_broker = FakeBroker() args = ('a', 'b') with unit.mock_check_drive(isdir=True): rpc.merge_syncs(fake_broker, args) self.assertEqual(fake_broker.args, (args[0],)) def test_complete_rsync_with_bad_input(self): drive = '/some/root' db_file = __file__ args = ['old_file'] rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) with unit.mock_check_drive(isdir=True): resp = rpc.complete_rsync(drive, db_file, args) self.assertTrue(isinstance(resp, HTTPException)) self.assertEqual(404, resp.status_int) with unit.mock_check_drive(isdir=True): resp = rpc.complete_rsync(drive, 'new_db_file', args) self.assertTrue(isinstance(resp, HTTPException)) self.assertEqual(404, resp.status_int) def test_complete_rsync(self): drive = mkdtemp() args = ['old_file'] rpc = db_replicator.ReplicatorRpc('/', '/', FakeBroker, mount_check=False) os.mkdir('%s/tmp' % drive) old_file = '%s/tmp/old_file' % drive new_file = '%s/new_db_file' % drive try: fp = open(old_file, 'w') fp.write('void') fp.close resp = rpc.complete_rsync(drive, new_file, args) self.assertEqual(204, resp.status_int) finally: rmtree(drive) @unit.with_tempdir def test_empty_suffix_and_hash_dirs_get_cleanedup(self, tempdir): datadir = os.path.join(tempdir, 'containers') db_path = ('450/afd/7089ab48d955ab0851fc51cc17a34afd/' '7089ab48d955ab0851fc51cc17a34afd.db') random_file = ('1060/xyz/1234ab48d955ab0851fc51cc17a34xyz/' '1234ab48d955ab0851fc51cc17a34xyz.abc') # trailing "/" indicates empty dir paths = [ # empty part dir '240/', # empty suffix dir '18/aba/', # empty hashdir '1054/27e/d41d8cd98f00b204e9800998ecf8427e/', # database db_path, # non database file random_file, ] for path in paths: path = os.path.join(datadir, path) os.makedirs(os.path.dirname(path)) if os.path.basename(path): # our setup requires "directories" to end in "/" (i.e. basename # is ''); otherwise, create an empty file open(path, 'w') # sanity self.assertEqual({'240', '18', '1054', '1060', '450'}, set(os.listdir(datadir))) for path in paths: dirpath = os.path.join(datadir, os.path.dirname(path)) self.assertTrue(os.path.isdir(dirpath)) node_id = 1 results = list(db_replicator.roundrobin_datadirs( [(datadir, node_id, lambda p: True)])) expected = [ ('450', os.path.join(datadir, db_path), node_id), ] self.assertEqual(results, expected) # all the empty leaf dirs are cleaned up for path in paths: if os.path.basename(path): check = self.assertTrue else: check = self.assertFalse dirpath = os.path.join(datadir, os.path.dirname(path)) isdir = os.path.isdir(dirpath) check(isdir, '%r is%s a directory!' % ( dirpath, '' if isdir else ' not')) # despite the leaves cleaned up it takes a few loops to finish it off self.assertEqual({'18', '1054', '1060', '450'}, set(os.listdir(datadir))) results = list(db_replicator.roundrobin_datadirs( [(datadir, node_id, lambda p: True)])) self.assertEqual(results, expected) self.assertEqual({'1054', '1060', '450'}, set(os.listdir(datadir))) results = list(db_replicator.roundrobin_datadirs( [(datadir, node_id, lambda p: True)])) self.assertEqual(results, expected) # non db file in '1060' dir is not deleted and exception is handled self.assertEqual({'1060', '450'}, set(os.listdir(datadir))) def test_roundrobin_datadirs(self): listdir_calls = [] isdir_calls = [] exists_calls = [] shuffle_calls = [] rmdir_calls = [] def _listdir(path): listdir_calls.append(path) if not path.startswith('/srv/node/sda/containers') and \ not path.startswith('/srv/node/sdb/containers'): return [] path = path[len('/srv/node/sdx/containers'):] if path == '': return ['123', '456', '789', '9999', "-5", "not-a-partition"] # 456 will pretend to be a file # 9999 will be an empty partition with no contents # -5 and not-a-partition were created by something outside # Swift elif path == '/123': return ['abc', 'def.db'] # def.db will pretend to be a file elif path == '/123/abc': # 11111111111111111111111111111abc will pretend to be a file return ['00000000000000000000000000000abc', '11111111111111111111111111111abc'] elif path == '/123/abc/00000000000000000000000000000abc': return ['00000000000000000000000000000abc.db', # This other.db isn't in the right place, so should be # ignored later. '000000000000000000000000000other.db', 'weird1'] # weird1 will pretend to be a dir, if asked elif path == '/789': return ['ghi', 'jkl'] # jkl will pretend to be a file elif path == '/789/ghi': # 33333333333333333333333333333ghi will pretend to be a file return ['22222222222222222222222222222ghi', '33333333333333333333333333333ghi'] elif path == '/789/ghi/22222222222222222222222222222ghi': return ['22222222222222222222222222222ghi.db', 'weird2'] # weird2 will pretend to be a dir, if asked elif path == '9999': return [] elif path == 'not-a-partition': raise Exception("shouldn't look in not-a-partition") elif path == '-5': raise Exception("shouldn't look in -5") return [] def _isdir(path): isdir_calls.append(path) if not path.startswith('/srv/node/sda/containers') and \ not path.startswith('/srv/node/sdb/containers'): return False path = path[len('/srv/node/sdx/containers'):] if path in ('/123', '/123/abc', '/123/abc/00000000000000000000000000000abc', '/123/abc/00000000000000000000000000000abc/weird1', '/789', '/789/ghi', '/789/ghi/22222222222222222222222222222ghi', '/789/ghi/22222222222222222222222222222ghi/weird2', '/9999'): return True return False def _exists(arg): exists_calls.append(arg) return True def _shuffle(arg): shuffle_calls.append(arg) def _rmdir(arg): rmdir_calls.append(arg) base = 'swift.common.db_replicator.' with mock.patch(base + 'os.listdir', _listdir), \ mock.patch(base + 'os.path.isdir', _isdir), \ mock.patch(base + 'os.path.exists', _exists), \ mock.patch(base + 'random.shuffle', _shuffle), \ mock.patch(base + 'os.rmdir', _rmdir): datadirs = [('/srv/node/sda/containers', 1, lambda p: True), ('/srv/node/sdb/containers', 2, lambda p: True)] results = list(db_replicator.roundrobin_datadirs(datadirs)) # The results show that the .db files are returned, the devices # interleaved. self.assertEqual(results, [ ('123', '/srv/node/sda/containers/123/abc/' '00000000000000000000000000000abc/' '00000000000000000000000000000abc.db', 1), ('123', '/srv/node/sdb/containers/123/abc/' '00000000000000000000000000000abc/' '00000000000000000000000000000abc.db', 2), ('789', '/srv/node/sda/containers/789/ghi/' '22222222222222222222222222222ghi/' '22222222222222222222222222222ghi.db', 1), ('789', '/srv/node/sdb/containers/789/ghi/' '22222222222222222222222222222ghi/' '22222222222222222222222222222ghi.db', 2)]) # The listdir calls show that we only listdir the dirs self.assertEqual(listdir_calls, [ '/srv/node/sda/containers', '/srv/node/sda/containers/123', '/srv/node/sda/containers/123/abc', '/srv/node/sdb/containers', '/srv/node/sdb/containers/123', '/srv/node/sdb/containers/123/abc', '/srv/node/sda/containers/789', '/srv/node/sda/containers/789/ghi', '/srv/node/sdb/containers/789', '/srv/node/sdb/containers/789/ghi', '/srv/node/sda/containers/9999', '/srv/node/sdb/containers/9999']) # The isdir calls show that we did ask about the things pretending # to be files at various levels. self.assertEqual(isdir_calls, [ '/srv/node/sda/containers/123', '/srv/node/sda/containers/123/abc', ('/srv/node/sda/containers/123/abc/' '00000000000000000000000000000abc'), '/srv/node/sdb/containers/123', '/srv/node/sdb/containers/123/abc', ('/srv/node/sdb/containers/123/abc/' '00000000000000000000000000000abc'), ('/srv/node/sda/containers/123/abc/' '11111111111111111111111111111abc'), '/srv/node/sda/containers/123/def.db', '/srv/node/sda/containers/456', '/srv/node/sda/containers/789', '/srv/node/sda/containers/789/ghi', ('/srv/node/sda/containers/789/ghi/' '22222222222222222222222222222ghi'), ('/srv/node/sdb/containers/123/abc/' '11111111111111111111111111111abc'), '/srv/node/sdb/containers/123/def.db', '/srv/node/sdb/containers/456', '/srv/node/sdb/containers/789', '/srv/node/sdb/containers/789/ghi', ('/srv/node/sdb/containers/789/ghi/' '22222222222222222222222222222ghi'), ('/srv/node/sda/containers/789/ghi/' '33333333333333333333333333333ghi'), '/srv/node/sda/containers/789/jkl', '/srv/node/sda/containers/9999', ('/srv/node/sdb/containers/789/ghi/' '33333333333333333333333333333ghi'), '/srv/node/sdb/containers/789/jkl', '/srv/node/sdb/containers/9999']) # The exists calls are the .db files we looked for as we walked the # structure. self.assertEqual(exists_calls, [ ('/srv/node/sda/containers/123/abc/' '00000000000000000000000000000abc/' '00000000000000000000000000000abc.db'), ('/srv/node/sdb/containers/123/abc/' '00000000000000000000000000000abc/' '00000000000000000000000000000abc.db'), ('/srv/node/sda/containers/789/ghi/' '22222222222222222222222222222ghi/' '22222222222222222222222222222ghi.db'), ('/srv/node/sdb/containers/789/ghi/' '22222222222222222222222222222ghi/' '22222222222222222222222222222ghi.db')]) # Shows that we called shuffle twice, once for each device. self.assertEqual( shuffle_calls, [['123', '456', '789', '9999'], ['123', '456', '789', '9999']]) # Shows that we called removed the two empty partition directories. self.assertEqual( rmdir_calls, ['/srv/node/sda/containers/9999', '/srv/node/sdb/containers/9999']) @mock.patch("swift.common.db_replicator.ReplConnection", mock.Mock()) def test_http_connect(self): node = "node" partition = "partition" db_file = __file__ replicator = TestReplicator({}) replicator._http_connect(node, partition, db_file) expected_hsh = os.path.basename(db_file).split('.', 1)[0] expected_hsh = expected_hsh.split('_', 1)[0] db_replicator.ReplConnection.assert_has_calls([ mock.call(node, partition, expected_hsh, replicator.logger)]) class TestHandoffsOnly(unittest.TestCase): class FakeRing3Nodes(object): _replicas = 3 # Three nodes, two disks each devs = [ dict(id=0, region=1, zone=1, meta='', weight=500.0, ip='10.0.0.1', port=6201, replication_ip='10.0.0.1', replication_port=6201, device='sdp'), dict(id=1, region=1, zone=1, meta='', weight=500.0, ip='10.0.0.1', port=6201, replication_ip='10.0.0.1', replication_port=6201, device='sdq'), dict(id=2, region=1, zone=1, meta='', weight=500.0, ip='10.0.0.2', port=6201, replication_ip='10.0.0.2', replication_port=6201, device='sdp'), dict(id=3, region=1, zone=1, meta='', weight=500.0, ip='10.0.0.2', port=6201, replication_ip='10.0.0.2', replication_port=6201, device='sdq'), dict(id=4, region=1, zone=1, meta='', weight=500.0, ip='10.0.0.3', port=6201, replication_ip='10.0.0.3', replication_port=6201, device='sdp'), dict(id=5, region=1, zone=1, meta='', weight=500.0, ip='10.0.0.3', port=6201, replication_ip='10.0.0.3', replication_port=6201, device='sdq'), ] def __init__(self, *a, **kw): pass def get_part(self, account, container=None, obj=None): return 0 def get_part_nodes(self, part): nodes = [] for offset in range(self._replicas): i = (part + offset) % len(self.devs) nodes.append(self.devs[i]) return nodes def get_more_nodes(self, part): for offset in range(self._replicas, len(self.devs)): i = (part + offset) % len(self.devs) yield self.devs[i] def _make_fake_db(self, disk, partition, db_hash): directories = [ os.path.join(self.root, disk), os.path.join(self.root, disk, 'containers'), os.path.join(self.root, disk, 'containers', str(partition)), os.path.join(self.root, disk, 'containers', str(partition), db_hash[-3:]), os.path.join(self.root, disk, 'containers', str(partition), db_hash[-3:], db_hash)] for d in directories: try: os.mkdir(d) except OSError as err: if err.errno != errno.EEXIST: raise file_path = os.path.join(directories[-1], db_hash + ".db") with open(file_path, 'w'): pass def setUp(self): self.root = mkdtemp() self.logger = debug_logger() # object disks; they're just here to make sure they don't trip us up os.mkdir(os.path.join(self.root, 'sdc')) os.mkdir(os.path.join(self.root, 'sdc', 'objects')) os.mkdir(os.path.join(self.root, 'sdd')) os.mkdir(os.path.join(self.root, 'sdd', 'objects')) # part 0 belongs on sdp self._make_fake_db('sdp', 0, '010101013cf2b7979af9eaa71cb67220') # part 1 does not belong on sdp self._make_fake_db('sdp', 1, 'abababab2b5368158355e799323b498d') # part 1 belongs on sdq self._make_fake_db('sdq', 1, '02020202e30f696a3cfa63d434a3c94e') # part 2 does not belong on sdq self._make_fake_db('sdq', 2, 'bcbcbcbc15d3835053d568c57e2c83b5') def tearDown(self): rmtree(self.root, ignore_errors=True) def test_scary_warnings(self): replicator = TestReplicator({ 'handoffs_only': 'yes', 'devices': self.root, 'bind_port': 6201, 'mount_check': 'no', }, logger=self.logger) with patch.object(db_replicator, 'whataremyips', return_value=['10.0.0.1']), \ patch.object(replicator, '_replicate_object'), \ patch.object(replicator, 'ring', self.FakeRing3Nodes()): replicator.run_once() self.assertEqual( self.logger.get_lines_for_level('warning'), [('Starting replication pass with handoffs_only enabled. This ' 'mode is not intended for normal operation; use ' 'handoffs_only with care.'), ('Finished replication pass with handoffs_only enabled. ' 'If handoffs_only is no longer required, disable it.')]) def test_skips_primary_partitions(self): replicator = TestReplicator({ 'handoffs_only': 'yes', 'devices': self.root, 'bind_port': 6201, 'mount_check': 'no', }) with patch.object(db_replicator, 'whataremyips', return_value=['10.0.0.1']), \ patch.object(replicator, '_replicate_object') as mock_repl, \ patch.object(replicator, 'ring', self.FakeRing3Nodes()): replicator.run_once() self.assertEqual(sorted(mock_repl.mock_calls), [ mock.call('1', os.path.join( self.root, 'sdp', 'containers', '1', '98d', 'abababab2b5368158355e799323b498d', 'abababab2b5368158355e799323b498d.db'), 0), mock.call('2', os.path.join( self.root, 'sdq', 'containers', '2', '3b5', 'bcbcbcbc15d3835053d568c57e2c83b5', 'bcbcbcbc15d3835053d568c57e2c83b5.db'), 1)]) def test_override_partitions(self): replicator = TestReplicator({ 'devices': self.root, 'bind_port': 6201, 'mount_check': 'no', }) with patch.object(db_replicator, 'whataremyips', return_value=['10.0.0.1']), \ patch.object(replicator, '_replicate_object') as mock_repl, \ patch.object(replicator, 'ring', self.FakeRing3Nodes()): replicator.run_once(partitions="0,2") self.assertEqual(sorted(mock_repl.mock_calls), [ mock.call('0', os.path.join( self.root, 'sdp', 'containers', '0', '220', '010101013cf2b7979af9eaa71cb67220', '010101013cf2b7979af9eaa71cb67220.db'), 0), mock.call('2', os.path.join( self.root, 'sdq', 'containers', '2', '3b5', 'bcbcbcbc15d3835053d568c57e2c83b5', 'bcbcbcbc15d3835053d568c57e2c83b5.db'), 1)]) def test_override_devices(self): replicator = TestReplicator({ 'devices': self.root, 'bind_port': 6201, 'mount_check': 'no', }) with patch.object(db_replicator, 'whataremyips', return_value=['10.0.0.1']), \ patch.object(replicator, '_replicate_object') as mock_repl, \ patch.object(replicator, 'ring', self.FakeRing3Nodes()): replicator.run_once(devices="sdp") self.assertEqual(sorted(mock_repl.mock_calls), [ mock.call('0', os.path.join( self.root, 'sdp', 'containers', '0', '220', '010101013cf2b7979af9eaa71cb67220', '010101013cf2b7979af9eaa71cb67220.db'), 0), mock.call('1', os.path.join( self.root, 'sdp', 'containers', '1', '98d', 'abababab2b5368158355e799323b498d', 'abababab2b5368158355e799323b498d.db'), 0)]) def test_override_devices_and_partitions(self): replicator = TestReplicator({ 'devices': self.root, 'bind_port': 6201, 'mount_check': 'no', }) with patch.object(db_replicator, 'whataremyips', return_value=['10.0.0.1']), \ patch.object(replicator, '_replicate_object') as mock_repl, \ patch.object(replicator, 'ring', self.FakeRing3Nodes()): replicator.run_once(partitions="0,2", devices="sdp") self.assertEqual(sorted(mock_repl.mock_calls), [ mock.call('0', os.path.join( self.root, 'sdp', 'containers', '0', '220', '010101013cf2b7979af9eaa71cb67220', '010101013cf2b7979af9eaa71cb67220.db'), 0)]) class TestReplToNode(unittest.TestCase): def setUp(self): db_replicator.ring = FakeRing() self.delete_db_calls = [] self.broker = FakeBroker() self.replicator = TestReplicator({'per_diff': 10}) self.fake_node = {'ip': '127.0.0.1', 'device': 'sda1', 'port': 1000} self.fake_info = {'id': 'a', 'point': -1, 'max_row': 20, 'hash': 'b', 'created_at': 100, 'put_timestamp': 0, 'delete_timestamp': 0, 'count': 0, 'metadata': json.dumps({ 'Test': ('Value', normalize_timestamp(1))})} self.replicator.logger = mock.Mock() self.replicator._rsync_db = mock.Mock(return_value=True) self.replicator._usync_db = mock.Mock(return_value=True) self.http = ReplHttp('{"id": 3, "point": -1}') self.replicator._http_connect = lambda *args: self.http def test_repl_to_node_usync_success(self): rinfo = {"id": 3, "point": -1, "max_row": 10, "hash": "c"} self.http = ReplHttp(json.dumps(rinfo)) local_sync = self.broker.get_sync() self.assertEqual(self.replicator._repl_to_node( self.fake_node, self.broker, '0', self.fake_info), True) self.replicator._usync_db.assert_has_calls([ mock.call(max(rinfo['point'], local_sync), self.broker, self.http, rinfo['id'], self.fake_info['id']) ]) def test_repl_to_node_rsync_success(self): rinfo = {"id": 3, "point": -1, "max_row": 9, "hash": "c"} self.http = ReplHttp(json.dumps(rinfo)) self.broker.get_sync() self.assertEqual(self.replicator._repl_to_node( self.fake_node, self.broker, '0', self.fake_info), True) self.replicator.logger.increment.assert_has_calls([ mock.call.increment('remote_merges') ]) self.replicator._rsync_db.assert_has_calls([ mock.call(self.broker, self.fake_node, self.http, self.fake_info['id'], replicate_method='rsync_then_merge', replicate_timeout=(self.fake_info['count'] / 2000), different_region=False) ]) def test_repl_to_node_already_in_sync(self): rinfo = {"id": 3, "point": -1, "max_row": 20, "hash": "b"} self.http = ReplHttp(json.dumps(rinfo)) self.broker.get_sync() self.assertEqual(self.replicator._repl_to_node( self.fake_node, self.broker, '0', self.fake_info), True) self.assertEqual(self.replicator._rsync_db.call_count, 0) self.assertEqual(self.replicator._usync_db.call_count, 0) def test_repl_to_node_metadata_update(self): now = Timestamp(time.time()).internal rmetadata = {"X-Container-Sysmeta-Test": ("XYZ", now)} rinfo = {"id": 3, "point": -1, "max_row": 20, "hash": "b", "metadata": json.dumps(rmetadata)} self.http = ReplHttp(json.dumps(rinfo)) self.broker.get_sync() self.assertEqual(self.replicator._repl_to_node( self.fake_node, self.broker, '0', self.fake_info), True) metadata = self.broker.metadata self.assertIn("X-Container-Sysmeta-Test", metadata) self.assertEqual("XYZ", metadata["X-Container-Sysmeta-Test"][0]) self.assertEqual(now, metadata["X-Container-Sysmeta-Test"][1]) def test_repl_to_node_not_found(self): self.http = ReplHttp('{"id": 3, "point": -1}', set_status=404) self.assertEqual(self.replicator._repl_to_node( self.fake_node, self.broker, '0', self.fake_info, False), True) self.replicator.logger.increment.assert_has_calls([ mock.call.increment('rsyncs') ]) self.replicator._rsync_db.assert_has_calls([ mock.call(self.broker, self.fake_node, self.http, self.fake_info['id'], different_region=False) ]) def test_repl_to_node_drive_not_mounted(self): self.http = ReplHttp('{"id": 3, "point": -1}', set_status=507) self.assertRaises(DriveNotMounted, self.replicator._repl_to_node, self.fake_node, FakeBroker(), '0', self.fake_info) def test_repl_to_node_300_status(self): self.http = ReplHttp('{"id": 3, "point": -1}', set_status=300) self.assertFalse(self.replicator._repl_to_node( self.fake_node, FakeBroker(), '0', self.fake_info)) def test_repl_to_node_not_response(self): self.http = mock.Mock(replicate=mock.Mock(return_value=None)) self.assertEqual(self.replicator._repl_to_node( self.fake_node, FakeBroker(), '0', self.fake_info), False) def test_repl_to_node_small_container_always_usync(self): # Tests that a small container that is > 50% out of sync will # still use usync. rinfo = {"id": 3, "point": -1, "hash": "c"} # Turn per_diff back to swift's default. self.replicator.per_diff = 1000 for r, l in ((5, 20), (40, 100), (450, 1000), (550, 1500)): rinfo['max_row'] = r self.fake_info['max_row'] = l self.replicator._usync_db = mock.Mock(return_value=True) self.http = ReplHttp(json.dumps(rinfo)) local_sync = self.broker.get_sync() self.assertEqual(self.replicator._repl_to_node( self.fake_node, self.broker, '0', self.fake_info), True) self.replicator._usync_db.assert_has_calls([ mock.call(max(rinfo['point'], local_sync), self.broker, self.http, rinfo['id'], self.fake_info['id']) ]) class ExampleReplicator(db_replicator.Replicator): server_type = 'fake' brokerclass = ExampleBroker datadir = 'fake' default_port = 1000 class TestReplicatorSync(unittest.TestCase): # override in subclass backend = ExampleReplicator.brokerclass datadir = ExampleReplicator.datadir replicator_daemon = ExampleReplicator replicator_rpc = db_replicator.ReplicatorRpc def setUp(self): self.root = mkdtemp() self.rpc = self.replicator_rpc( self.root, self.datadir, self.backend, mount_check=False, logger=debug_logger()) FakeReplConnection = attach_fake_replication_rpc(self.rpc) self._orig_ReplConnection = db_replicator.ReplConnection db_replicator.ReplConnection = FakeReplConnection self._orig_Ring = db_replicator.ring.Ring self._ring = unit.FakeRing() db_replicator.ring.Ring = lambda *args, **kwargs: self._get_ring() self.logger = debug_logger() def tearDown(self): db_replicator.ReplConnection = self._orig_ReplConnection db_replicator.ring.Ring = self._orig_Ring rmtree(self.root) def _get_ring(self): return self._ring def _get_broker(self, account, container=None, node_index=0): hash_ = hash_path(account, container) part, nodes = self._ring.get_nodes(account, container) drive = nodes[node_index]['device'] db_path = os.path.join(self.root, drive, storage_directory(self.datadir, part, hash_), hash_ + '.db') return self.backend(db_path, account=account, container=container) def _get_broker_part_node(self, broker): part, nodes = self._ring.get_nodes(broker.account, broker.container) storage_dir = broker.db_file[len(self.root):].lstrip(os.path.sep) broker_device = storage_dir.split(os.path.sep, 1)[0] for node in nodes: if node['device'] == broker_device: return part, node def _get_daemon(self, node, conf_updates): conf = { 'devices': self.root, 'recon_cache_path': self.root, 'mount_check': 'false', 'bind_port': node['replication_port'], } if conf_updates: conf.update(conf_updates) return self.replicator_daemon(conf, logger=self.logger) def _install_fake_rsync_file(self, daemon, captured_calls=None): def _rsync_file(db_file, remote_file, **kwargs): if captured_calls is not None: captured_calls.append((db_file, remote_file, kwargs)) remote_server, remote_path = remote_file.split('/', 1) dest_path = os.path.join(self.root, remote_path) copy(db_file, dest_path) return True daemon._rsync_file = _rsync_file def _run_once(self, node, conf_updates=None, daemon=None): daemon = daemon or self._get_daemon(node, conf_updates) self._install_fake_rsync_file(daemon) with mock.patch('swift.common.db_replicator.whataremyips', new=lambda *a, **kw: [node['replication_ip']]), \ unit.mock_check_drive(isdir=not daemon.mount_check, ismount=daemon.mount_check): daemon.run_once() return daemon def test_local_ids(self): for drive in ('sda', 'sdb', 'sdd'): os.makedirs(os.path.join(self.root, drive, self.datadir)) for node in self._ring.devs: daemon = self._run_once(node) if node['device'] == 'sdc': self.assertEqual(daemon._local_device_ids, set()) else: self.assertEqual(daemon._local_device_ids, set([node['id']])) def test_clean_up_after_deleted_brokers(self): broker = self._get_broker('a', 'c', node_index=0) part, node = self._get_broker_part_node(broker) part = str(part) daemon = self._run_once(node) # create a super old broker and delete it! forever_ago = time.time() - daemon.reclaim_age put_timestamp = normalize_timestamp(forever_ago - 2) delete_timestamp = normalize_timestamp(forever_ago - 1) broker.initialize(put_timestamp) broker.delete_db(delete_timestamp) # if we have a container broker make sure it's reported if hasattr(broker, 'reported'): info = broker.get_info() broker.reported(info['put_timestamp'], info['delete_timestamp'], info['object_count'], info['bytes_used']) info = broker.get_replication_info() self.assertTrue(daemon.report_up_to_date(info)) # we have a part dir part_root = os.path.join(self.root, node['device'], self.datadir) parts = os.listdir(part_root) self.assertEqual([part], parts) # with a single suffix suff = os.listdir(os.path.join(part_root, part)) self.assertEqual(1, len(suff)) # running replicator will remove the deleted db daemon = self._run_once(node, daemon=daemon) self.assertEqual(1, daemon.stats['remove']) # we still have a part dir (but it's empty) suff = os.listdir(os.path.join(part_root, part)) self.assertEqual(0, len(suff)) # run it again and there's nothing to do... daemon = self._run_once(node, daemon=daemon) self.assertEqual(0, daemon.stats['attempted']) # but empty part dir is cleaned up! parts = os.listdir(part_root) self.assertEqual(0, len(parts)) def test_rsync_then_merge(self): # setup current db (and broker) broker = self._get_broker('a', 'c', node_index=0) part, node = self._get_broker_part_node(broker) part = str(part) put_timestamp = normalize_timestamp(time.time()) broker.initialize(put_timestamp) put_metadata = {'example-meta': ['bah', put_timestamp]} broker.update_metadata(put_metadata) # sanity (re-open, and the db keeps the metadata) broker = self._get_broker('a', 'c', node_index=0) self.assertEqual(put_metadata, broker.metadata) # create rsynced db in tmp dir obj_hash = hash_path('a', 'c') rsynced_db_broker = self.backend( os.path.join(self.root, node['device'], 'tmp', obj_hash + '.db'), account='a', container='b') rsynced_db_broker.initialize(put_timestamp) # do rysnc_then_merge rpc = db_replicator.ReplicatorRpc( self.root, self.datadir, self.backend, False) response = rpc.dispatch((node['device'], part, obj_hash), ['rsync_then_merge', obj_hash + '.db', 'arg2']) # sanity self.assertEqual('204 No Content', response.status) self.assertEqual(204, response.status_int) # re-open the db broker = self._get_broker('a', 'c', node_index=0) # keep the metadata in existing db self.assertEqual(put_metadata, broker.metadata) def test_replicator_sync(self): # setup current db (and broker) broker = self._get_broker('a', 'c', node_index=0) part, node = self._get_broker_part_node(broker) part = str(part) put_timestamp = normalize_timestamp(time.time()) broker.initialize(put_timestamp) put_metadata = {'example-meta': ['bah', put_timestamp]} sync_local_metadata = { "meta1": ["data1", put_timestamp], "meta2": ["data2", put_timestamp]} broker.update_metadata(put_metadata) # sanity (re-open, and the db keeps the metadata) broker = self._get_broker('a', 'c', node_index=0) self.assertEqual(put_metadata, broker.metadata) # do rysnc_then_merge rpc = db_replicator.ReplicatorRpc( self.root, self.datadir, ExampleBroker, False) response = rpc.sync( broker, (broker.get_sync('id_') + 1, 12345, 'id_', put_timestamp, put_timestamp, '0', json.dumps(sync_local_metadata))) # sanity self.assertEqual('200 OK', response.status) self.assertEqual(200, response.status_int) # re-open the db broker = self._get_broker('a', 'c', node_index=0) # keep the both metadata in existing db and local db expected = put_metadata.copy() expected.update(sync_local_metadata) self.assertEqual(expected, broker.metadata) if __name__ == '__main__': unittest.main()