def test_do_PUT_config(self, mock_dcs):
mock_dcs.get_cluster.return_value.config = ClusterConfig.from_node(1, '{}')
request = 'PUT /config HTTP/1.0' + self._authorization + '\nContent-Length: '
self.assertIsNotNone(MockRestApiServer(RestApiHandler, request + '2\n\n{}'))
config = '{"foo": "bar"}'
request += str(len(config)) + '\n\n' + config
MockRestApiServer(RestApiHandler, request)
mock_dcs.set_config_value.return_value = False
MockRestApiServer(RestApiHandler, request)
mock_dcs.get_cluster.return_value.config = ClusterConfig.from_node(1, config)
MockRestApiServer(RestApiHandler, request)
def test_do_PUT_config(self, mock_dcs):
mock_dcs.get_cluster.return_value.config = ClusterConfig.from_node(1, '{}')
request = 'PUT /config HTTP/1.0' + self._authorization + '\nContent-Length: '
self.assertIsNotNone(MockRestApiServer(RestApiHandler, request + '2\n\n{}'))
config = '{"foo": "bar"}'
request += str(len(config)) + '\n\n' + config
MockRestApiServer(RestApiHandler, request)
mock_dcs.set_config_value.return_value = False
MockRestApiServer(RestApiHandler, request)
mock_dcs.get_cluster.return_value.config = ClusterConfig.from_node(1, config)
MockRestApiServer(RestApiHandler, request)
def test__ensure_logical_slots_replica(self):
self.p.set_role('replica')
config = ClusterConfig(
1, {'slots': {
'ls': {
'database': 'a',
'plugin': 'b'
}
}}, 1)
cluster = Cluster(True, config, self.leader, 0,
[self.me, self.other, self.leadermem], None, None,
None, {'ls': 12346})
self.assertEqual(self.s.sync_replication_slots(cluster, False), [])
self.s._schedule_load_slots = False
with patch.object(MockCursor, 'execute',
Mock(side_effect=psycopg2.OperationalError)):
self.assertEqual(self.s.sync_replication_slots(cluster, False), [])
cluster.slots['ls'] = 'a'
self.assertEqual(self.s.sync_replication_slots(cluster, False), [])
with patch.object(MockCursor,
'rowcount',
PropertyMock(return_value=1),
create=True):
self.assertEqual(self.s.sync_replication_slots(cluster, False),
['ls'])
def test_sync_replication_slots(self):
config = ClusterConfig(1, {'slots': {'test_3': {'database': 'a', 'plugin': 'b'},
'A': 0, 'ls': 0, 'b': {'type': 'logical', 'plugin': '1'}},
'ignore_slots': [{'name': 'blabla'}]}, 1)
cluster = Cluster(True, config, self.leader, 0,
[self.me, self.other, self.leadermem], None, None, None, {'test_3': 10})
with mock.patch('patroni.postgresql.Postgresql._query', Mock(side_effect=psycopg.OperationalError)):
self.s.sync_replication_slots(cluster, False)
self.p.set_role('standby_leader')
self.s.sync_replication_slots(cluster, False)
self.p.set_role('replica')
with patch.object(Postgresql, 'is_leader', Mock(return_value=False)):
self.s.sync_replication_slots(cluster, False)
self.p.set_role('master')
with mock.patch('patroni.postgresql.Postgresql.role', new_callable=PropertyMock(return_value='replica')):
self.s.sync_replication_slots(cluster, False)
with patch.object(SlotsHandler, 'drop_replication_slot', Mock(return_value=True)),\
patch('patroni.dcs.logger.error', new_callable=Mock()) as errorlog_mock:
alias1 = Member(0, 'test-3', 28, {'conn_url': 'postgres://*****:*****@127.0.0.1:5436/postgres'})
alias2 = Member(0, 'test.3', 28, {'conn_url': 'postgres://*****:*****@127.0.0.1:5436/postgres'})
cluster.members.extend([alias1, alias2])
self.s.sync_replication_slots(cluster, False)
self.assertEqual(errorlog_mock.call_count, 5)
ca = errorlog_mock.call_args_list[0][0][1]
self.assertTrue("test-3" in ca, "non matching {0}".format(ca))
self.assertTrue("test.3" in ca, "non matching {0}".format(ca))
with patch.object(Postgresql, 'major_version', PropertyMock(return_value=90618)):
self.s.sync_replication_slots(cluster, False)
def _load_cluster(self):
try:
path = self.client_path('/')
_, results = self.retry(self._client.kv.get, path, recurse=True)
if results is None:
raise NotFound
nodes = {}
for node in results:
node['Value'] = (node['Value'] or b'').decode('utf-8')
nodes[os.path.relpath(node['Key'], path)] = node
# get initialize flag
initialize = nodes.get(self._INITIALIZE)
initialize = initialize and initialize['Value']
# get global dynamic configuration
config = nodes.get(self._CONFIG)
config = config and ClusterConfig.from_node(config['ModifyIndex'], config['Value'])
# get timeline history
history = nodes.get(self._HISTORY)
history = history and TimelineHistory.from_node(history['ModifyIndex'], history['Value'])
# get last leader operation
last_leader_operation = nodes.get(self._LEADER_OPTIME)
last_leader_operation = 0 if last_leader_operation is None else int(last_leader_operation['Value'])
# get list of members
members = [self.member(n) for k, n in nodes.items() if k.startswith(self._MEMBERS) and k.count('/') == 1]
# get leader
leader = nodes.get(self._LEADER)
if not self._ctl and leader and leader['Value'] == self._name \
and self._session != leader.get('Session', 'x'):
logger.info('I am leader but not owner of the session. Removing leader node')
self._client.kv.delete(self.leader_path, cas=leader['ModifyIndex'])
leader = None
if leader:
member = Member(-1, leader['Value'], None, {})
member = ([m for m in members if m.name == leader['Value']] or [member])[0]
leader = Leader(leader['ModifyIndex'], leader.get('Session'), member)
# failover key
failover = nodes.get(self._FAILOVER)
if failover:
failover = Failover.from_node(failover['ModifyIndex'], failover['Value'])
# get synchronization state
sync = nodes.get(self._SYNC)
sync = SyncState.from_node(sync and sync['ModifyIndex'], sync and sync['Value'])
self._cluster = Cluster(initialize, config, leader, last_leader_operation, members, failover, sync, history)
except NotFound:
self._cluster = Cluster(None, None, None, None, [], None, None, None)
except Exception:
logger.exception('get_cluster')
raise ConsulError('Consul is not responding properly')
def test_do_PATCH_config(self, mock_dcs):
config = {
'postgresql': {
'use_slots': False,
'use_pg_rewind': True,
'parameters': {
'wal_level': 'logical'
}
}
}
mock_dcs.get_cluster.return_value.config = ClusterConfig.from_node(
1, json.dumps(config))
request = 'PATCH /config HTTP/1.0' + self._authorization
self.assertIsNotNone(MockRestApiServer(RestApiHandler, request))
request += '\nContent-Length: '
self.assertIsNotNone(
MockRestApiServer(
RestApiHandler,
request + '34\n\n{"postgresql":{"use_slots":false}}'))
config['ttl'] = 5
config['postgresql'].update({
'use_slots': {
'foo': True
},
"parameters": None
})
config = json.dumps(config)
request += str(len(config)) + '\n\n' + config
MockRestApiServer(RestApiHandler, request)
mock_dcs.set_config_value.return_value = False
MockRestApiServer(RestApiHandler, request)
mock_dcs.get_cluster.return_value.config = None
MockRestApiServer(RestApiHandler, request)
def _load_cluster(self):
try:
path = self.client_path('/')
_, results = self.retry(self._client.kv.get, path, recurse=True)
if results is None:
raise NotFound
nodes = {}
for node in results:
node['Value'] = (node['Value'] or b'').decode('utf-8')
nodes[node['Key'][len(path):].lstrip('/')] = node
# get initialize flag
initialize = nodes.get(self._INITIALIZE)
initialize = initialize and initialize['Value']
# get global dynamic configuration
config = nodes.get(self._CONFIG)
config = config and ClusterConfig.from_node(config['ModifyIndex'], config['Value'])
# get timeline history
history = nodes.get(self._HISTORY)
history = history and TimelineHistory.from_node(history['ModifyIndex'], history['Value'])
# get last leader operation
last_leader_operation = nodes.get(self._LEADER_OPTIME)
last_leader_operation = 0 if last_leader_operation is None else int(last_leader_operation['Value'])
# get list of members
members = [self.member(n) for k, n in nodes.items() if k.startswith(self._MEMBERS) and k.count('/') == 1]
# get leader
leader = nodes.get(self._LEADER)
if not self._ctl and leader and leader['Value'] == self._name \
and self._session != leader.get('Session', 'x'):
logger.info('I am leader but not owner of the session. Removing leader node')
self._client.kv.delete(self.leader_path, cas=leader['ModifyIndex'])
leader = None
if leader:
member = Member(-1, leader['Value'], None, {})
member = ([m for m in members if m.name == leader['Value']] or [member])[0]
leader = Leader(leader['ModifyIndex'], leader.get('Session'), member)
# failover key
failover = nodes.get(self._FAILOVER)
if failover:
failover = Failover.from_node(failover['ModifyIndex'], failover['Value'])
# get synchronization state
sync = nodes.get(self._SYNC)
sync = SyncState.from_node(sync and sync['ModifyIndex'], sync and sync['Value'])
self._cluster = Cluster(initialize, config, leader, last_leader_operation, members, failover, sync, history)
except NotFound:
self._cluster = Cluster(None, None, None, None, [], None, None, None)
except Exception:
logger.exception('get_cluster')
raise ConsulError('Consul is not responding properly')
def setUp(self):
super(TestSlotsHandler, self).setUp()
self.s = self.p.slots_handler
self.p.start()
config = ClusterConfig(1, {'slots': {'ls': {'database': 'a', 'plugin': 'b'}}}, 1)
self.cluster = Cluster(True, config, self.leader, 0,
[self.me, self.other, self.leadermem], None, None, None, {'ls': 12345})
def test_check_logical_slots_readiness(self):
self.s.copy_logical_slots(self.leader, ['ls'])
config = ClusterConfig(1, {'slots': {'ls': {'database': 'a', 'plugin': 'b'}}}, 1)
cluster = Cluster(True, config, self.leader, 0,
[self.me, self.other, self.leadermem], None, None, None, {'ls': 12345})
self.assertEqual(self.s.sync_replication_slots(cluster, False), [])
with patch.object(MockCursor, 'rowcount', PropertyMock(return_value=1), create=True):
self.s.check_logical_slots_readiness(cluster, False, None)
def _load_cluster(self):
try:
result = self.retry(self._client.read,
self.client_path(''),
recursive=True)
nodes = {
os.path.relpath(node.key, result.key): node
for node in result.leaves
}
# get initialize flag
initialize = nodes.get(self._INITIALIZE)
initialize = initialize and initialize.value
# get global dynamic configuration
config = nodes.get(self._CONFIG)
config = config and ClusterConfig.from_node(
config.modifiedIndex, config.value)
# get last leader operation
last_leader_operation = nodes.get(self._LEADER_OPTIME)
last_leader_operation = 0 if last_leader_operation is None else int(
last_leader_operation.value)
# get list of members
members = [
self.member(n) for k, n in nodes.items()
if k.startswith(self._MEMBERS) and k.count('/') == 1
]
# get leader
leader = nodes.get(self._LEADER)
if leader:
member = Member(-1, leader.value, None, {})
member = ([m for m in members if m.name == leader.value]
or [member])[0]
index = result.etcd_index if result.etcd_index > leader.modifiedIndex else leader.modifiedIndex + 1
leader = Leader(index, leader.ttl, member)
# failover key
failover = nodes.get(self._FAILOVER)
if failover:
failover = Failover.from_node(failover.modifiedIndex,
failover.value)
# get synchronization state
sync = nodes.get(self._SYNC)
sync = SyncState.from_node(sync and sync.modifiedIndex, sync
and sync.value)
self._cluster = Cluster(initialize, config, leader,
last_leader_operation, members, failover,
sync)
except etcd.EtcdKeyNotFound:
self._cluster = Cluster(None, None, None, None, [], None, None)
except:
logger.exception('get_cluster')
raise EtcdError('Etcd is not responding properly')
def _inner_load_cluster(self):
self._fetch_cluster = False
self.event.clear()
nodes = set(
self.get_children(self.client_path(''), self.cluster_watcher))
if not nodes:
self._fetch_cluster = True
# get initialize flag
initialize = (self.get_node(self.initialize_path)
or [None])[0] if self._INITIALIZE in nodes else None
# get global dynamic configuration
config = self.get_node(
self.config_path,
watch=self.cluster_watcher) if self._CONFIG in nodes else None
config = config and ClusterConfig.from_node(config[1].version,
config[0], config[1].mzxid)
# get last leader operation
last_leader_operation = self._OPTIME in nodes and self._fetch_cluster and self.get_node(
self.leader_optime_path)
last_leader_operation = last_leader_operation and int(
last_leader_operation[0]) or 0
# get list of members
members = self.load_members() if self._MEMBERS[:-1] in nodes else []
# get leader
leader = self.get_node(
self.leader_path) if self._LEADER in nodes else None
if leader:
client_id = self._client.client_id
if not self._ctl and leader[0] == self._name and client_id is not None \
and client_id[0] != leader[1].ephemeralOwner:
logger.info(
'I am leader but not owner of the session. Removing leader node'
)
self._client.delete(self.leader_path)
leader = None
if leader:
member = Member(-1, leader[0], None, {})
member = ([m for m in members if m.name == leader[0]]
or [member])[0]
leader = Leader(leader[1].version, leader[1].ephemeralOwner,
member)
self._fetch_cluster = member.index == -1
# failover key
failover = self.get_node(
self.failover_path,
watch=self.cluster_watcher) if self._FAILOVER in nodes else None
failover = failover and Failover.from_node(failover[1].version,
failover[0])
self._cluster = Cluster(initialize, config, leader,
last_leader_operation, members, failover)
def get_standby_cluster_initialized_with_only_leader(failover=None, sync=None):
return get_cluster_initialized_with_only_leader(
cluster_config=ClusterConfig(1, {
"standby_cluster": {
"host": "localhost",
"port": 5432,
"primary_slot_name": "",
}}, 1)
)
def _load_cluster(self):
prefix = self.client_path('')
response = self._sync_obj.get(prefix, recursive=True)
if not response:
return Cluster(None, None, None, None, [], None, None, None)
nodes = {
os.path.relpath(key, prefix).replace('\\', '/'): value
for key, value in response.items()
}
# get initialize flag
initialize = nodes.get(self._INITIALIZE)
initialize = initialize and initialize['value']
# get global dynamic configuration
config = nodes.get(self._CONFIG)
config = config and ClusterConfig.from_node(config['index'],
config['value'])
# get timeline history
history = nodes.get(self._HISTORY)
history = history and TimelineHistory.from_node(
history['index'], history['value'])
# get last leader operation
last_leader_operation = nodes.get(self._LEADER_OPTIME)
last_leader_operation = 0 if last_leader_operation is None else int(
last_leader_operation['value'])
# get list of members
members = [
self.member(k, n) for k, n in nodes.items()
if k.startswith(self._MEMBERS) and k.count('/') == 1
]
# get leader
leader = nodes.get(self._LEADER)
if leader:
member = Member(-1, leader['value'], None, {})
member = ([m for m in members if m.name == leader['value']]
or [member])[0]
leader = Leader(leader['index'], None, member)
# failover key
failover = nodes.get(self._FAILOVER)
if failover:
failover = Failover.from_node(failover['index'], failover['value'])
# get synchronization state
sync = nodes.get(self._SYNC)
sync = SyncState.from_node(sync and sync['index'], sync
and sync['value'])
return Cluster(initialize, config, leader, last_leader_operation,
members, failover, sync, history)
def _inner_load_cluster(self):
self._fetch_cluster = False
self.event.clear()
nodes = set(self.get_children(self.client_path(''), self.cluster_watcher))
if not nodes:
self._fetch_cluster = True
# get initialize flag
initialize = (self.get_node(self.initialize_path) or [None])[0] if self._INITIALIZE in nodes else None
# get global dynamic configuration
config = self.get_node(self.config_path, watch=self.cluster_watcher) if self._CONFIG in nodes else None
config = config and ClusterConfig.from_node(config[1].version, config[0], config[1].mzxid)
# get timeline history
history = self.get_node(self.history_path, watch=self.cluster_watcher) if self._HISTORY in nodes else None
history = history and TimelineHistory.from_node(history[1].mzxid, history[0])
# get synchronization state
sync = self.get_node(self.sync_path, watch=self.cluster_watcher) if self._SYNC in nodes else None
sync = SyncState.from_node(sync and sync[1].version, sync and sync[0])
# get list of members
sync_standby = sync.leader == self._name and sync.members or []
members = self.load_members(sync_standby) if self._MEMBERS[:-1] in nodes else []
# get leader
leader = self.get_node(self.leader_path) if self._LEADER in nodes else None
if leader:
client_id = self._client.client_id
if not self._ctl and leader[0] == self._name and client_id is not None \
and client_id[0] != leader[1].ephemeralOwner:
logger.info('I am leader but not owner of the session. Removing leader node')
self._client.delete(self.leader_path)
leader = None
if leader:
member = Member(-1, leader[0], None, {})
member = ([m for m in members if m.name == leader[0]] or [member])[0]
leader = Leader(leader[1].version, leader[1].ephemeralOwner, member)
self._fetch_cluster = member.index == -1
# get last leader operation
last_leader_operation = self._OPTIME in nodes and self.get_leader_optime(leader)
# failover key
failover = self.get_node(self.failover_path, watch=self.cluster_watcher) if self._FAILOVER in nodes else None
failover = failover and Failover.from_node(failover[1].version, failover[0])
return Cluster(initialize, config, leader, last_leader_operation, members, failover, sync, history)
def test_do_PATCH_config(self, mock_dcs):
config = {'postgresql': {'use_slots': False, 'use_pg_rewind': True, 'parameters': {'wal_level': 'logical'}}}
mock_dcs.get_cluster.return_value.config = ClusterConfig.from_node(1, json.dumps(config))
request = 'PATCH /config HTTP/1.0' + self._authorization
self.assertIsNotNone(MockRestApiServer(RestApiHandler, request))
request += '\nContent-Length: '
self.assertIsNotNone(MockRestApiServer(RestApiHandler, request + '34\n\n{"postgresql":{"use_slots":false}}'))
config['ttl'] = 5
config['postgresql'].update({'use_slots': {'foo': True}, "parameters": None})
config = json.dumps(config)
request += str(len(config)) + '\n\n' + config
MockRestApiServer(RestApiHandler, request)
mock_dcs.set_config_value.return_value = False
MockRestApiServer(RestApiHandler, request)
def _load_cluster(self):
try:
result = self.retry(self._client.read, self.client_path(''), recursive=True)
nodes = {os.path.relpath(node.key, result.key): node for node in result.leaves}
# get initialize flag
initialize = nodes.get(self._INITIALIZE)
initialize = initialize and initialize.value
# get global dynamic configuration
config = nodes.get(self._CONFIG)
config = config and ClusterConfig.from_node(config.modifiedIndex, config.value)
# get last leader operation
last_leader_operation = nodes.get(self._LEADER_OPTIME)
last_leader_operation = 0 if last_leader_operation is None else int(last_leader_operation.value)
# get list of members
members = [self.member(n) for k, n in nodes.items() if k.startswith(self._MEMBERS) and k.count('/') == 1]
# get leader
leader = nodes.get(self._LEADER)
if leader:
member = Member(-1, leader.value, None, {})
member = ([m for m in members if m.name == leader.value] or [member])[0]
index = result.etcd_index if result.etcd_index > leader.modifiedIndex else leader.modifiedIndex + 1
leader = Leader(index, leader.ttl, member)
# failover key
failover = nodes.get(self._FAILOVER)
if failover:
failover = Failover.from_node(failover.modifiedIndex, failover.value)
# get synchronization state
sync = nodes.get(self._SYNC)
sync = SyncState.from_node(sync and sync.modifiedIndex, sync and sync.value)
self._cluster = Cluster(initialize, config, leader, last_leader_operation, members, failover, sync)
except etcd.EtcdKeyNotFound:
self._cluster = Cluster(None, None, None, None, [], None, None)
except:
logger.exception('get_cluster')
raise EtcdError('Etcd is not responding properly')
def test_process_permanent_slots(self):
config = ClusterConfig(
1, {
'slots': {
'ls': {
'database': 'a',
'plugin': 'b'
}
},
'ignore_slots': [{
'name': 'blabla'
}]
}, 1)
cluster = Cluster(True, config, self.leader, 0,
[self.me, self.other, self.leadermem], None, None,
None, None)
self.s.sync_replication_slots(cluster, False)
with patch.object(Postgresql, '_query') as mock_query:
self.p.reset_cluster_info_state(None)
mock_query.return_value.fetchone.return_value = (
1, 0, 0, 0, 0, 0, 0, 0, 0, [{
"slot_name": "ls",
"type": "logical",
"datoid": 5,
"plugin": "b",
"confirmed_flush_lsn": 12345,
"catalog_xmin": 105
}])
self.assertEqual(self.p.slots(), {'ls': 12345})
self.p.reset_cluster_info_state(None)
mock_query.return_value.fetchone.return_value = (
1, 0, 0, 0, 0, 0, 0, 0, 0, [{
"slot_name": "ls",
"type": "logical",
"datoid": 6,
"plugin": "b",
"confirmed_flush_lsn": 12345,
"catalog_xmin": 105
}])
self.assertEqual(self.p.slots(), {})
def _inner_load_cluster(self):
self._fetch_cluster = False
self.event.clear()
nodes = set(self.get_children(self.client_path(''), self.cluster_watcher))
if not nodes:
self._fetch_cluster = True
# get initialize flag
initialize = (self.get_node(self.initialize_path) or [None])[0] if self._INITIALIZE in nodes else None
# get global dynamic configuration
config = self.get_node(self.config_path, watch=self.cluster_watcher) if self._CONFIG in nodes else None
config = config and ClusterConfig.from_node(config[1].version, config[0], config[1].mzxid)
# get list of members
members = self.load_members() if self._MEMBERS[:-1] in nodes else []
# get leader
leader = self.get_node(self.leader_path) if self._LEADER in nodes else None
if leader:
client_id = self._client.client_id
if leader[0] == self._name and client_id is not None and client_id[0] != leader[1].ephemeralOwner:
logger.info('I am leader but not owner of the session. Removing leader node')
self._client.delete(self.leader_path)
leader = None
if leader:
member = Member(-1, leader[0], None, {})
member = ([m for m in members if m.name == leader[0]] or [member])[0]
leader = Leader(leader[1].version, leader[1].ephemeralOwner, member)
self._fetch_cluster = member.index == -1
# failover key
failover = self.get_node(self.failover_path, watch=self.cluster_watcher) if self._FAILOVER in nodes else None
failover = failover and Failover.from_node(failover[1].version, failover[0])
# get last leader operation
optime = self.get_node(self.leader_optime_path) if self._OPTIME in nodes and self._fetch_cluster else None
self._last_leader_operation = 0 if optime is None else int(optime[0])
self._cluster = Cluster(initialize, config, leader, self._last_leader_operation, members, failover)
def _load_cluster(self):
try:
# get list of members
response = self.retry(self._api.list_namespaced_pod,
self._namespace,
label_selector=self._label_selector)
members = [self.member(pod) for pod in response.items]
response = self.retry(self._api.list_namespaced_kind,
self._namespace,
label_selector=self._label_selector)
nodes = {item.metadata.name: item for item in response.items}
config = nodes.get(self.config_path)
metadata = config and config.metadata
annotations = metadata and metadata.annotations or {}
# get initialize flag
initialize = annotations.get(self._INITIALIZE)
# get global dynamic configuration
config = ClusterConfig.from_node(
metadata and metadata.resource_version,
annotations.get(self._CONFIG) or '{}')
# get timeline history
history = TimelineHistory.from_node(
metadata and metadata.resource_version,
annotations.get(self._HISTORY) or '[]')
leader = nodes.get(self.leader_path)
metadata = leader and leader.metadata
self._leader_resource_version = metadata.resource_version if metadata else None
self._leader_observed_subsets = leader.subsets if self.__subsets and leader else []
annotations = metadata and metadata.annotations or {}
# get last leader operation
last_leader_operation = annotations.get(self._OPTIME)
last_leader_operation = 0 if last_leader_operation is None else int(
last_leader_operation)
# get leader
leader_record = {
n: annotations.get(n)
for n in (self._LEADER, 'acquireTime', 'ttl', 'renewTime',
'transitions') if n in annotations
}
if (leader_record or self._leader_observed_record
) and leader_record != self._leader_observed_record:
self._leader_observed_record = leader_record
self._leader_observed_time = time.time()
leader = leader_record.get(self._LEADER)
try:
ttl = int(leader_record.get('ttl')) or self._ttl
except (TypeError, ValueError):
ttl = self._ttl
if not metadata or not self._leader_observed_time or self._leader_observed_time + ttl < time.time(
):
leader = None
if metadata:
member = Member(-1, leader, None, {})
member = ([m for m in members if m.name == leader]
or [member])[0]
leader = Leader(response.metadata.resource_version, None,
member)
# failover key
failover = nodes.get(self.failover_path)
metadata = failover and failover.metadata
failover = Failover.from_node(
metadata and metadata.resource_version, metadata
and metadata.annotations)
# get synchronization state
sync = nodes.get(self.sync_path)
metadata = sync and sync.metadata
sync = SyncState.from_node(metadata and metadata.resource_version,
metadata and metadata.annotations)
self._cluster = Cluster(initialize, config, leader,
last_leader_operation, members, failover,
sync, history)
except Exception:
logger.exception('get_cluster')
raise KubernetesError('Kubernetes API is not responding properly')
def _load_cluster(self):
try:
# get list of members
response = self.retry(self._api.list_namespaced_pod, self._namespace, label_selector=self._label_selector)
members = [self.member(pod) for pod in response.items]
response = self.retry(self._api.list_namespaced_kind, self._namespace, label_selector=self._label_selector)
nodes = {item.metadata.name: item for item in response.items}
config = nodes.get(self.config_path)
metadata = config and config.metadata
annotations = metadata and metadata.annotations or {}
# get initialize flag
initialize = annotations.get(self._INITIALIZE)
# get global dynamic configuration
config = ClusterConfig.from_node(metadata and metadata.resource_version,
annotations.get(self._CONFIG) or '{}')
# get timeline history
history = TimelineHistory.from_node(metadata and metadata.resource_version,
annotations.get(self._HISTORY) or '[]')
leader = nodes.get(self.leader_path)
metadata = leader and leader.metadata
self._leader_resource_version = metadata.resource_version if metadata else None
self._leader_observed_subsets = leader.subsets if self.__subsets and leader else []
annotations = metadata and metadata.annotations or {}
# get last leader operation
last_leader_operation = annotations.get(self._OPTIME)
last_leader_operation = 0 if last_leader_operation is None else int(last_leader_operation)
# get leader
leader_record = {n: annotations.get(n) for n in (self._LEADER, 'acquireTime',
'ttl', 'renewTime', 'transitions') if n in annotations}
if (leader_record or self._leader_observed_record) and leader_record != self._leader_observed_record:
self._leader_observed_record = leader_record
self._leader_observed_time = time.time()
leader = leader_record.get(self._LEADER)
try:
ttl = int(leader_record.get('ttl')) or self._ttl
except (TypeError, ValueError):
ttl = self._ttl
if not metadata or not self._leader_observed_time or self._leader_observed_time + ttl < time.time():
leader = None
if metadata:
member = Member(-1, leader, None, {})
member = ([m for m in members if m.name == leader] or [member])[0]
leader = Leader(response.metadata.resource_version, None, member)
# failover key
failover = nodes.get(self.failover_path)
metadata = failover and failover.metadata
failover = Failover.from_node(metadata and metadata.resource_version, metadata and metadata.annotations)
# get synchronization state
sync = nodes.get(self.sync_path)
metadata = sync and sync.metadata
sync = SyncState.from_node(metadata and metadata.resource_version, metadata and metadata.annotations)
self._cluster = Cluster(initialize, config, leader, last_leader_operation, members, failover, sync, history)
except Exception:
logger.exception('get_cluster')
raise KubernetesError('Kubernetes API is not responding properly')
def get_cluster(initialize, leader, members, failover, sync):
history = TimelineHistory(1, [(1, 67197376, 'no recovery target specified', datetime.datetime.now().isoformat())])
return Cluster(initialize, ClusterConfig(1, {1: 2}, 1), leader, 10, members, failover, sync, history)
def get_cluster(initialize, leader, members, failover, sync):
return Cluster(initialize, ClusterConfig(1, {1: 2}, 1), leader, 10,
members, failover, sync)
def test_start_as_standby_leader(self, initialize):
self.p.data_directory_empty = true
self.ha.cluster = get_cluster_not_initialized_without_leader(cluster_config=ClusterConfig(0, {}, 0))
self.ha.cluster.is_unlocked = true
self.ha.patroni.config._dynamic_configuration = {"standby_cluster": {"port": 5432}}
self.assertEqual(self.ha.run_cycle(), 'trying to bootstrap a new standby leader')
