def test_find_replace_enable(self):
db_file = os.path.join(self.testdir, 'hash.db')
broker = ContainerBroker(db_file)
broker.account = 'a'
broker.container = 'c'
broker.initialize()
ts = utils.Timestamp.now()
broker.merge_items([{
'name': 'obj%02d' % i,
'created_at': ts.internal,
'size': 0,
'content_type': 'application/octet-stream',
'etag': 'not-really',
'deleted': 0,
'storage_policy_index': 0,
'ctype_timestamp': ts.internal,
'meta_timestamp': ts.internal
} for i in range(100)])
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now() as now:
main([broker.db_file, 'find_and_replace', '10', '--enable'])
expected = [
'No shard ranges found to delete.', 'Injected 10 shard ranges.',
'Run container-replicator to replicate them to other nodes.',
"Container moved to state 'sharding' with epoch %s." %
now.internal,
'Run container-sharder on all nodes to shard the container.'
]
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self._assert_enabled(broker, now)
found_shard_ranges = broker.get_shard_ranges()
self.assertEqual([(data['lower'], data['upper'])
for data in self.shard_data],
[(sr.lower_str, sr.upper_str)
for sr in found_shard_ranges])
# Do another find & replace but quit when prompted about existing
# shard ranges
out = StringIO()
err = StringIO()
to_patch = 'swift.cli.manage_shard_ranges.input'
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err), \
mock_timestamp_now() as now, \
mock.patch(to_patch, return_value='q'):
main([broker.db_file, 'find_and_replace', '10'])
# Shard ranges haven't changed at all
self.assertEqual(found_shard_ranges, broker.get_shard_ranges())
expected = ['This will delete existing 10 shard ranges.']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
def test_find_replace_enable(self):
db_file = os.path.join(self.testdir, 'hash.db')
broker = ContainerBroker(db_file)
broker.account = 'a'
broker.container = 'c'
broker.initialize()
ts = utils.Timestamp.now()
broker.merge_items([
{'name': 'obj%02d' % i, 'created_at': ts.internal, 'size': 0,
'content_type': 'application/octet-stream', 'etag': 'not-really',
'deleted': 0, 'storage_policy_index': 0,
'ctype_timestamp': ts.internal, 'meta_timestamp': ts.internal}
for i in range(100)])
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now() as now:
main([broker.db_file, 'find_and_replace', '10', '--enable'])
expected = [
'No shard ranges found to delete.',
'Injected 10 shard ranges.',
'Run container-replicator to replicate them to other nodes.',
"Container moved to state 'sharding' with epoch %s." %
now.internal,
'Run container-sharder on all nodes to shard the container.']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self._assert_enabled(broker, now)
self.assertEqual(
[(data['lower'], data['upper']) for data in self.shard_data],
[(sr.lower_str, sr.upper_str) for sr in broker.get_shard_ranges()])
def test_enable(self):
broker = self._make_broker()
broker.update_metadata(
{'X-Container-Sysmeta-Sharding': (True, Timestamp.now().internal)})
# no shard ranges
out = StringIO()
err = StringIO()
with self.assertRaises(SystemExit):
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
main([broker.db_file, 'enable'])
expected = [
"WARNING: invalid shard ranges: ['No shard ranges.'].", 'Aborting.'
]
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
# success
shard_ranges = []
for data in self.shard_data:
path = ShardRange.make_path('.shards_a', 'c', 'c', Timestamp.now(),
data['index'])
shard_ranges.append(
ShardRange(path, Timestamp.now(), data['lower'], data['upper'],
data['object_count']))
broker.merge_shard_ranges(shard_ranges)
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now() as now:
main([broker.db_file, 'enable'])
expected = [
"Container moved to state 'sharding' with epoch %s." %
now.internal,
'Run container-sharder on all nodes to shard the container.'
]
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self._assert_enabled(broker, now)
# already enabled
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
main([broker.db_file, 'enable'])
expected = [
"Container already in state 'sharding' with epoch %s." %
now.internal, 'No action required.',
'Run container-sharder on all nodes to shard the container.'
]
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self._assert_enabled(broker, now)
def test_compact_donors_but_no_suitable_acceptor(self):
# if shard ranges are already shrinking, check that the final one is
# not made into an acceptor if a suitable adjacent acceptor is not
# found (unexpected scenario but possible in an overlap situation)
broker = self._make_broker()
shard_ranges = make_shard_ranges(broker, self.shard_data, '.shards_')
for i, state in enumerate([ShardRange.SHRINKING] * 3 +
[ShardRange.SHARDING] +
[ShardRange.ACTIVE] * 6):
shard_ranges[i].update_state(state)
broker.merge_shard_ranges(shard_ranges)
epoch = self._move_broker_to_sharded_state(broker)
with mock_timestamp_now(epoch):
own_sr = broker.get_own_shard_range(no_default=True)
self.assertEqual(epoch, own_sr.state_timestamp) # sanity check
self.assertEqual(ShardRange.SHARDED, own_sr.state) # sanity check
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
ret = main(
[broker.db_file, 'compact', '--yes', '--max-shrinking', '99'])
self.assertEqual(
0, ret,
'stdout:\n%s\nstderr\n%s' % (out.getvalue(), err.getvalue()))
err_lines = err.getvalue().split('\n')
self.assert_starts_with(err_lines[0], 'Loaded db broker for ')
out_lines = out.getvalue().split('\n')
self.assertEqual(['Updated 1 shard sequences for compaction.'],
out_lines[:1])
updated_ranges = broker.get_shard_ranges()
shard_ranges[9].lower = shard_ranges[4].lower # expanded acceptor
self.assertEqual(shard_ranges, updated_ranges)
self.assertEqual(
[ShardRange.SHRINKING] * 3 + # unchanged
[ShardRange.SHARDING] + # unchanged
[ShardRange.SHRINKING] * 5 + # moved to shrinking
[ShardRange.ACTIVE], # unchanged
[sr.state for sr in updated_ranges])
with mock_timestamp_now(epoch): # force equal meta-timestamp
updated_own_sr = broker.get_own_shard_range(no_default=True)
self.assertEqual(dict(own_sr), dict(updated_own_sr))
def test_enable(self):
broker = self._make_broker()
broker.update_metadata({'X-Container-Sysmeta-Sharding':
(True, Timestamp.now().internal)})
# no shard ranges
out = StringIO()
err = StringIO()
with self.assertRaises(SystemExit):
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
main([broker.db_file, 'enable'])
expected = ["WARNING: invalid shard ranges: ['No shard ranges.'].",
'Aborting.']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
# success
shard_ranges = []
for data in self.shard_data:
path = ShardRange.make_path(
'.shards_a', 'c', 'c', Timestamp.now(), data['index'])
shard_ranges.append(
ShardRange(path, Timestamp.now(), data['lower'],
data['upper'], data['object_count']))
broker.merge_shard_ranges(shard_ranges)
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now() as now:
main([broker.db_file, 'enable'])
expected = [
"Container moved to state 'sharding' with epoch %s." %
now.internal,
'Run container-sharder on all nodes to shard the container.']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self._assert_enabled(broker, now)
# already enabled
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
main([broker.db_file, 'enable'])
expected = [
"Container already in state 'sharding' with epoch %s." %
now.internal,
'No action required.',
'Run container-sharder on all nodes to shard the container.']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self._assert_enabled(broker, now)
def test_info(self):
broker = self._make_broker()
broker.update_metadata(
{'X-Container-Sysmeta-Sharding': (True, Timestamp.now().internal)})
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
main([broker.db_file, 'info'])
expected = [
'Sharding enabled = True', 'Own shard range: None',
'db_state = unsharded', 'Metadata:',
' X-Container-Sysmeta-Sharding = True'
]
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
retiring_db_id = broker.get_info()['id']
broker.merge_shard_ranges(ShardRange('.shards/cc', Timestamp.now()))
epoch = Timestamp.now()
with mock_timestamp_now(epoch) as now:
broker.enable_sharding(epoch)
self.assertTrue(broker.set_sharding_state())
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now(now):
main([broker.db_file, 'info'])
expected = [
'Sharding enabled = True', 'Own shard range: {',
' "bytes_used": 0, ', ' "deleted": 0, ',
' "epoch": "%s", ' % epoch.internal, ' "lower": "", ',
' "meta_timestamp": "%s", ' % now.internal, ' "name": "a/c", ',
' "object_count": 0, ', ' "state": "sharding", ',
' "state_timestamp": "%s", ' % now.internal,
' "timestamp": "%s", ' % now.internal, ' "upper": ""', '}',
'db_state = sharding',
'Retiring db id: %s' % retiring_db_id, 'Cleaving context: {',
' "cleave_to_row": null, ', ' "cleaving_done": false, ',
' "cursor": "", ', ' "last_cleave_to_row": null, ',
' "max_row": -1, ', ' "misplaced_done": false, ',
' "ranges_done": 0, ', ' "ranges_todo": 0, ',
' "ref": "%s"' % retiring_db_id, '}', 'Metadata:',
' X-Container-Sysmeta-Sharding = True'
]
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self.assertTrue(broker.set_sharded_state())
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now(now):
main([broker.db_file, 'info'])
expected = [
'Sharding enabled = True', 'Own shard range: {',
' "bytes_used": 0, ', ' "deleted": 0, ',
' "epoch": "%s", ' % epoch.internal, ' "lower": "", ',
' "meta_timestamp": "%s", ' % now.internal, ' "name": "a/c", ',
' "object_count": 0, ', ' "state": "sharding", ',
' "state_timestamp": "%s", ' % now.internal,
' "timestamp": "%s", ' % now.internal, ' "upper": ""', '}',
'db_state = sharded', 'Metadata:',
' X-Container-Sysmeta-Sharding = True'
]
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
def test_info(self):
broker = self._make_broker()
broker.update_metadata({'X-Container-Sysmeta-Sharding':
(True, Timestamp.now().internal)})
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
main([broker.db_file, 'info'])
expected = ['Sharding enabled = True',
'Own shard range: None',
'db_state = unsharded',
'Metadata:',
' X-Container-Sysmeta-Sharding = True']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
retiring_db_id = broker.get_info()['id']
broker.merge_shard_ranges(ShardRange('.shards/cc', Timestamp.now()))
epoch = Timestamp.now()
with mock_timestamp_now(epoch) as now:
broker.enable_sharding(epoch)
self.assertTrue(broker.set_sharding_state())
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now(now):
main([broker.db_file, 'info'])
expected = ['Sharding enabled = True',
'Own shard range: {',
' "bytes_used": 0, ',
' "deleted": 0, ',
' "epoch": "%s", ' % epoch.internal,
' "lower": "", ',
' "meta_timestamp": "%s", ' % now.internal,
' "name": "a/c", ',
' "object_count": 0, ',
' "state": "sharding", ',
' "state_timestamp": "%s", ' % now.internal,
' "timestamp": "%s", ' % now.internal,
' "upper": ""',
'}',
'db_state = sharding',
'Retiring db id: %s' % retiring_db_id,
'Cleaving context: {',
' "cleave_to_row": null, ',
' "cleaving_done": false, ',
' "cursor": "", ',
' "last_cleave_to_row": null, ',
' "max_row": -1, ',
' "misplaced_done": false, ',
' "ranges_done": 0, ',
' "ranges_todo": 0, ',
' "ref": "%s"' % retiring_db_id,
'}',
'Metadata:',
' X-Container-Sysmeta-Sharding = True']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
self.assertTrue(broker.set_sharded_state())
out = StringIO()
err = StringIO()
with mock.patch('sys.stdout', out), mock.patch('sys.stderr', err):
with mock_timestamp_now(now):
main([broker.db_file, 'info'])
expected = ['Sharding enabled = True',
'Own shard range: {',
' "bytes_used": 0, ',
' "deleted": 0, ',
' "epoch": "%s", ' % epoch.internal,
' "lower": "", ',
' "meta_timestamp": "%s", ' % now.internal,
' "name": "a/c", ',
' "object_count": 0, ',
' "state": "sharding", ',
' "state_timestamp": "%s", ' % now.internal,
' "timestamp": "%s", ' % now.internal,
' "upper": ""',
'}',
'db_state = sharded',
'Metadata:',
' X-Container-Sysmeta-Sharding = True']
self.assertEqual(expected, out.getvalue().splitlines())
self.assertEqual(['Loaded db broker for a/c.'],
err.getvalue().splitlines())
