def test_sync_remote_can_not_keep_up(self):
put_timestamp = time.time()
# create "local" broker
broker = self._get_broker('a', 'c', node_index=0)
broker.initialize(put_timestamp, POLICIES.default.idx)
# create "remote" broker
remote_broker = self._get_broker('a', 'c', node_index=1)
remote_broker.initialize(put_timestamp, POLICIES.default.idx)
# add some rows to both db's
for i in range(10):
put_timestamp = time.time()
for db in (broker, remote_broker):
obj_name = 'o_%s' % i
db.put_object(obj_name, put_timestamp, 0,
'content-type', 'etag',
storage_policy_index=db.storage_policy_index)
# setup REPLICATE callback to simulate adding rows during merge_items
missing_counter = itertools.count()
def put_more_objects(op, *args):
if op != 'merge_items':
return
path = '/a/c/o_missing_%s' % missing_counter.next()
broker.put_object(path, time.time(), 0, 'content-type', 'etag',
storage_policy_index=db.storage_policy_index)
test_db_replicator.FakeReplConnection = \
test_db_replicator.attach_fake_replication_rpc(
self.rpc, replicate_hook=put_more_objects)
db_replicator.ReplConnection = test_db_replicator.FakeReplConnection
# and add one extra to local db to trigger merge_items
put_more_objects('merge_items')
# limit number of times we'll call merge_items
daemon = replicator.ContainerReplicator({'max_diffs': 10})
# replicate
part, node = self._get_broker_part_node(remote_broker)
info = broker.get_replication_info()
success = daemon._repl_to_node(node, broker, part, info)
self.assertFalse(success)
# back off on the PUTs during replication...
FakeReplConnection = test_db_replicator.attach_fake_replication_rpc(
self.rpc, replicate_hook=None)
db_replicator.ReplConnection = FakeReplConnection
# retry replication
info = broker.get_replication_info()
success = daemon._repl_to_node(node, broker, part, info)
self.assertTrue(success)
# row merge
self.assertEqual(2, daemon.stats['diff'])
self.assertEqual(1, daemon.stats['diff_capped'])
local_info = self._get_broker(
'a', 'c', node_index=0).get_info()
remote_info = self._get_broker(
'a', 'c', node_index=1).get_info()
for k, v in local_info.items():
if k == 'id':
continue
self.assertEqual(remote_info[k], v,
"mismatch remote %s %r != %r" % (
k, remote_info[k], v))
def test_sync_remote_can_not_keep_up(self):
put_timestamp = time.time()
# create "local" broker
broker = self._get_broker('a', 'c', node_index=0)
broker.initialize(put_timestamp, POLICIES.default.idx)
# create "remote" broker
remote_broker = self._get_broker('a', 'c', node_index=1)
remote_broker.initialize(put_timestamp, POLICIES.default.idx)
# add some rows to both db's
for i in range(10):
put_timestamp = time.time()
for db in (broker, remote_broker):
obj_name = 'o_%s' % i
db.put_object(obj_name, put_timestamp, 0,
'content-type', 'etag',
storage_policy_index=db.storage_policy_index)
# setup REPLICATE callback to simulate adding rows during merge_items
missing_counter = itertools.count()
def put_more_objects(op, *args):
if op != 'merge_items':
return
path = '/a/c/o_missing_%s' % missing_counter.next()
broker.put_object(path, time.time(), 0, 'content-type', 'etag',
storage_policy_index=db.storage_policy_index)
test_db_replicator.FakeReplConnection = \
test_db_replicator.attach_fake_replication_rpc(
self.rpc, replicate_hook=put_more_objects)
db_replicator.ReplConnection = test_db_replicator.FakeReplConnection
# and add one extra to local db to trigger merge_items
put_more_objects('merge_items')
# limit number of times we'll call merge_items
daemon = replicator.ContainerReplicator({'max_diffs': 10})
# replicate
part, node = self._get_broker_part_node(remote_broker)
info = broker.get_replication_info()
success = daemon._repl_to_node(node, broker, part, info)
self.assertFalse(success)
# back off on the PUTs during replication...
FakeReplConnection = test_db_replicator.attach_fake_replication_rpc(
self.rpc, replicate_hook=None)
db_replicator.ReplConnection = FakeReplConnection
# retry replication
info = broker.get_replication_info()
success = daemon._repl_to_node(node, broker, part, info)
self.assertTrue(success)
# row merge
self.assertEqual(2, daemon.stats['diff'])
self.assertEqual(1, daemon.stats['diff_capped'])
local_info = self._get_broker(
'a', 'c', node_index=0).get_info()
remote_info = self._get_broker(
'a', 'c', node_index=1).get_info()
for k, v in local_info.items():
if k == 'id':
continue
self.assertEqual(remote_info[k], v,
"mismatch remote %s %r != %r" % (
k, remote_info[k], v))