本文整理汇总了Python中patroni.postgresql.Postgresql.is_healthiest_node方法的典型用法代码示例。如果您正苦于以下问题：Python Postgresql.is_healthiest_node方法的具体用法？Python Postgresql.is_healthiest_node怎么用？Python Postgresql.is_healthiest_node使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类patroni.postgresql.Postgresql的用法示例。
在下文中一共展示了Postgresql.is_healthiest_node方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: TestPostgresql
# 需要导入模块: from patroni.postgresql import Postgresql [as 别名]
# 或者: from patroni.postgresql.Postgresql import is_healthiest_node [as 别名]
class TestPostgresql(unittest.TestCase):
def __init__(self, method_name='runTest'):
self.setUp = self.set_up
self.tearDown = self.tear_down
super(TestPostgresql, self).__init__(method_name)
def set_up(self):
subprocess.call = subprocess_call
shutil.copy = nop
self.p = Postgresql({'name': 'test0', 'scope': 'batman', 'data_dir': 'data/test0',
'listen': '127.0.0.1, *:5432', 'connect_address': '127.0.0.2:5432',
'pg_hba': ['hostssl all all 0.0.0.0/0 md5', 'host all all 0.0.0.0/0 md5'],
'superuser': {'password': ''},
'admin': {'username': 'admin', 'password': 'admin'},
'replication': {'username': 'replicator',
'password': 'rep-pass',
'network': '127.0.0.1/32'},
'parameters': {'foo': 'bar'}, 'recovery_conf': {'foo': 'bar'},
'callbacks': {'on_start': 'true', 'on_stop': 'true',
'on_restart': 'true', 'on_role_change': 'true',
'on_reload': 'true'
},
'restore': 'true'})
psycopg2.connect = psycopg2_connect
if not os.path.exists(self.p.data_dir):
os.makedirs(self.p.data_dir)
self.leadermem = Member(0, 'leader', 'postgres://replicator:[email protected]:5435/postgres', None, None, 28)
self.leader = Leader(-1, None, 28, self.leadermem)
self.other = Member(0, 'test1', 'postgres://replicator:[email protected]:5433/postgres', None, None, 28)
self.me = Member(0, 'test0', 'postgres://replicator:[email protected]:5434/postgres', None, None, 28)
def tear_down(self):
shutil.rmtree('data')
def mock_query(self, p):
raise psycopg2.OperationalError("not supported")
def test_data_directory_empty(self):
self.assertTrue(self.p.data_directory_empty())
def test_initialize(self):
self.assertTrue(self.p.initialize())
self.assertTrue(os.path.exists(os.path.join(self.p.data_dir, 'pg_hba.conf')))
def test_start_stop(self):
self.assertFalse(self.p.start())
self.p.is_running = false
with open(os.path.join(self.p.data_dir, 'postmaster.pid'), 'w'):
pass
self.assertTrue(self.p.start())
self.assertTrue(self.p.stop())
def test_sync_from_leader(self):
self.assertTrue(self.p.sync_from_leader(self.leader))
def test_follow_the_leader(self):
self.p.demote(self.leader)
self.p.follow_the_leader(None)
self.p.demote(self.leader)
self.p.follow_the_leader(self.leader)
self.p.follow_the_leader(Leader(-1, None, 28, self.other))
def test_create_replica(self):
self.p.delete_trigger_file = raise_exception
self.assertEquals(self.p.create_replica({'host': '', 'port': '', 'user': ''}, ''), 1)
def test_create_connection_users(self):
cfg = self.p.config
cfg['superuser']['username'] = 'test'
p = Postgresql(cfg)
p.create_connection_users()
def test_sync_replication_slots(self):
self.p.start()
cluster = Cluster(True, self.leader, 0, [self.me, self.other, self.leadermem])
self.p.sync_replication_slots(cluster)
def test_query(self):
self.p.query('select 1')
self.assertRaises(psycopg2.InterfaceError, self.p.query, 'InterfaceError')
self.assertRaises(psycopg2.OperationalError, self.p.query, 'blabla')
self.p._connection.closed = 2
self.assertRaises(psycopg2.OperationalError, self.p.query, 'blabla')
self.p._connection.closed = 2
self.p.disconnect = false
self.assertRaises(psycopg2.OperationalError, self.p.query, 'blabla')
def test_is_healthiest_node(self):
cluster = Cluster(True, self.leader, 0, [self.me, self.other, self.leadermem])
self.assertTrue(self.p.is_healthiest_node(cluster))
self.p.is_leader = false
self.assertFalse(self.p.is_healthiest_node(cluster))
self.p.xlog_position = lambda: 1
self.assertTrue(self.p.is_healthiest_node(cluster))
self.p.xlog_position = lambda: 2
self.assertFalse(self.p.is_healthiest_node(cluster))
self.p.config['maximum_lag_on_failover'] = -3
self.assertFalse(self.p.is_healthiest_node(cluster))
#.........这里部分代码省略.........