本文整理汇总了Python中patroni.postgresql.Postgresql.rewind_needed_and_possible方法的典型用法代码示例。如果您正苦于以下问题：Python Postgresql.rewind_needed_and_possible方法的具体用法？Python Postgresql.rewind_needed_and_possible怎么用？Python Postgresql.rewind_needed_and_possible使用的例子？那么, 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.rewind_needed_and_possible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 rewind_needed_and_possible [as 别名]
#.........这里部分代码省略.........
self.p.write_pgpass({'host': 'localhost', 'port': '5432', 'user': 'foo'})
self.p.write_pgpass({'host': 'localhost', 'port': '5432', 'user': 'foo', 'password': 'bar'})
def test_checkpoint(self):
with patch.object(MockCursor, 'fetchone', Mock(return_value=(True, ))):
self.assertEquals(self.p.checkpoint({'user': 'postgres'}), 'is_in_recovery=true')
with patch.object(MockCursor, 'execute', Mock(return_value=None)):
self.assertIsNone(self.p.checkpoint())
self.assertEquals(self.p.checkpoint(), 'not accessible or not healty')
@patch.object(Postgresql, 'cancellable_subprocess_call')
@patch('patroni.postgresql.Postgresql.write_pgpass', MagicMock(return_value=dict()))
def test_pg_rewind(self, mock_cancellable_subprocess_call):
r = {'user': '', 'host': '', 'port': '', 'database': '', 'password': ''}
mock_cancellable_subprocess_call.return_value = 0
self.assertTrue(self.p.pg_rewind(r))
mock_cancellable_subprocess_call.side_effect = OSError
self.assertFalse(self.p.pg_rewind(r))
def test_check_recovery_conf(self):
self.p.write_recovery_conf({'primary_conninfo': 'foo'})
self.assertFalse(self.p.check_recovery_conf(None))
self.p.write_recovery_conf({})
self.assertTrue(self.p.check_recovery_conf(None))
@patch.object(Postgresql, 'start', Mock())
@patch.object(Postgresql, 'can_rewind', PropertyMock(return_value=True))
def test__get_local_timeline_lsn(self):
self.p.trigger_check_diverged_lsn()
with patch.object(Postgresql, 'controldata',
Mock(return_value={'Database cluster state': 'shut down in recovery',
'Minimum recovery ending location': '0/0',
"Min recovery ending loc's timeline": '0'})):
self.p.rewind_needed_and_possible(self.leader)
with patch.object(Postgresql, 'is_running', Mock(return_value=True)):
with patch.object(MockCursor, 'fetchone', Mock(side_effect=[(False, ), Exception])):
self.p.rewind_needed_and_possible(self.leader)
@patch.object(Postgresql, 'start', Mock())
@patch.object(Postgresql, 'can_rewind', PropertyMock(return_value=True))
@patch.object(Postgresql, '_get_local_timeline_lsn', Mock(return_value=(2, '40159C1')))
@patch.object(Postgresql, 'check_leader_is_not_in_recovery')
def test__check_timeline_and_lsn(self, mock_check_leader_is_not_in_recovery):
mock_check_leader_is_not_in_recovery.return_value = False
self.p.trigger_check_diverged_lsn()
self.assertFalse(self.p.rewind_needed_and_possible(self.leader))
mock_check_leader_is_not_in_recovery.return_value = True
self.assertFalse(self.p.rewind_needed_and_possible(self.leader))
self.p.trigger_check_diverged_lsn()
with patch('psycopg2.connect', Mock(side_effect=Exception)):
self.assertFalse(self.p.rewind_needed_and_possible(self.leader))
self.p.trigger_check_diverged_lsn()
with patch.object(MockCursor, 'fetchone', Mock(side_effect=[('', 2, '0/0'), ('', b'3\t0/40159C0\tn\n')])):
self.assertFalse(self.p.rewind_needed_and_possible(self.leader))
self.p.trigger_check_diverged_lsn()
with patch.object(MockCursor, 'fetchone', Mock(return_value=('', 1, '0/0'))):
with patch.object(Postgresql, '_get_local_timeline_lsn', Mock(return_value=(1, '0/0'))):
self.assertFalse(self.p.rewind_needed_and_possible(self.leader))
self.p.trigger_check_diverged_lsn()
self.assertTrue(self.p.rewind_needed_and_possible(self.leader))
@patch.object(MockCursor, 'fetchone', Mock(side_effect=[(True,), Exception]))
def test_check_leader_is_not_in_recovery(self):
self.p.check_leader_is_not_in_recovery()
self.p.check_leader_is_not_in_recovery()