本文整理汇总了Python中patroni.postgresql.Postgresql.is_running方法的典型用法代码示例。如果您正苦于以下问题：Python Postgresql.is_running方法的具体用法？Python Postgresql.is_running怎么用？Python Postgresql.is_running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.is_running方法的4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_running [as 别名]
class TestPostgresql(unittest.TestCase):
_PARAMETERS = {'wal_level': 'hot_standby', 'max_replication_slots': 5, 'f.oo': 'bar',
'search_path': 'public', 'hot_standby': 'on', 'max_wal_senders': 5,
'wal_keep_segments': 8, 'wal_log_hints': 'on', 'max_locks_per_transaction': 64,
'max_worker_processes': 8, 'max_connections': 100, 'max_prepared_transactions': 0}
@patch('subprocess.call', Mock(return_value=0))
@patch('psycopg2.connect', psycopg2_connect)
@patch('os.rename', Mock())
@patch.object(Postgresql, 'get_major_version', Mock(return_value=9.4))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
def setUp(self):
self.data_dir = 'data/test0'
if not os.path.exists(self.data_dir):
os.makedirs(self.data_dir)
self.p = Postgresql({'name': 'test0', 'scope': 'batman', 'data_dir': self.data_dir, 'retry_timeout': 10,
'listen': '127.0.0.1, *:5432', 'connect_address': '127.0.0.2:5432',
'authentication': {'superuser': {'username': 'test', 'password': 'test'},
'replication': {'username': 'replicator', 'password': 'rep-pass'}},
'remove_data_directory_on_rewind_failure': True,
'use_pg_rewind': True, 'pg_ctl_timeout': 'bla',
'parameters': self._PARAMETERS,
'recovery_conf': {'foo': 'bar'},
'callbacks': {'on_start': 'true', 'on_stop': 'true',
'on_restart': 'true', 'on_role_change': 'true',
'on_reload': 'true'
},
'restore': 'true'})
self.leadermem = Member(0, 'leader', 28, {'conn_url': 'postgres://replicator:[email protected]:5435/postgres'})
self.leader = Leader(-1, 28, self.leadermem)
self.other = Member(0, 'test1', 28, {'conn_url': 'postgres://replicator:[email protected]:5433/postgres',
'tags': {'replicatefrom': 'leader'}})
self.me = Member(0, 'test0', 28, {'conn_url': 'postgres://replicator:[email protected]:5434/postgres'})
def tearDown(self):
shutil.rmtree('data')
def test_get_initdb_options(self):
self.assertEquals(self.p.get_initdb_options([{'encoding': 'UTF8'}, 'data-checksums']),
['--encoding=UTF8', '--data-checksums'])
self.assertRaises(Exception, self.p.get_initdb_options, [{'pgdata': 'bar'}])
self.assertRaises(Exception, self.p.get_initdb_options, [{'foo': 'bar', 1: 2}])
self.assertRaises(Exception, self.p.get_initdb_options, [1])
@patch('os.path.exists', Mock(return_value=True))
@patch('os.unlink', Mock())
def test_delete_trigger_file(self):
self.p.delete_trigger_file()
@patch.object(Postgresql, 'is_running')
def test_start(self, mock_is_running):
mock_is_running.return_value = True
self.assertTrue(self.p.start())
mock_is_running.return_value = False
open(os.path.join(self.data_dir, 'postmaster.pid'), 'w').close()
pg_conf = os.path.join(self.data_dir, 'postgresql.conf')
open(pg_conf, 'w').close()
self.assertTrue(self.p.start())
with open(pg_conf) as f:
lines = f.readlines()
self.assertTrue("f.oo = 'bar'\n" in lines)
@patch.object(Postgresql, 'is_running')
def test_stop(self, mock_is_running):
mock_is_running.return_value = True
self.assertTrue(self.p.stop())
with patch('subprocess.call', Mock(return_value=1)):
mock_is_running.return_value = False
self.assertTrue(self.p.stop())
def test_restart(self):
self.p.start = false
self.assertFalse(self.p.restart())
self.assertEquals(self.p.state, 'restart failed (restarting)')
@patch.object(builtins, 'open', MagicMock())
def test_write_pgpass(self):
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('subprocess.call', side_effect=OSError)
@patch('patroni.postgresql.Postgresql.write_pgpass', MagicMock(return_value=dict()))
def test_pg_rewind(self, mock_call):
r = {'user': '', 'host': '', 'port': '', 'database': '', 'password': ''}
self.assertTrue(self.p.rewind(r))
subprocess.call = mock_call
self.assertFalse(self.p.rewind(r))
@patch('os.unlink', Mock(return_value=True))
@patch('subprocess.check_output', Mock(return_value=0, side_effect=pg_controldata_string))
@patch.object(Postgresql, 'remove_data_directory', Mock(return_value=True))
@patch.object(Postgresql, 'single_user_mode', Mock(return_value=1))
@patch.object(Postgresql, 'write_pgpass', Mock(return_value={}))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
#.........这里部分代码省略.........
示例2: TestPostgresql
# 需要导入模块: from patroni.postgresql import Postgresql [as 别名]
# 或者: from patroni.postgresql.Postgresql import is_running [as 别名]
class TestPostgresql(unittest.TestCase):
_PARAMETERS = {'wal_level': 'hot_standby', 'max_replication_slots': 5, 'f.oo': 'bar',
'search_path': 'public', 'hot_standby': 'on', 'max_wal_senders': 5,
'wal_keep_segments': 8, 'wal_log_hints': 'on', 'max_locks_per_transaction': 64,
'max_worker_processes': 8, 'max_connections': 100, 'max_prepared_transactions': 0,
'track_commit_timestamp': 'off', 'unix_socket_directories': '/tmp'}
@patch('subprocess.call', Mock(return_value=0))
@patch('psycopg2.connect', psycopg2_connect)
@patch('os.rename', Mock())
@patch.object(Postgresql, 'get_major_version', Mock(return_value=90600))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
def setUp(self):
self.data_dir = 'data/test0'
self.config_dir = self.data_dir
if not os.path.exists(self.data_dir):
os.makedirs(self.data_dir)
self.p = Postgresql({'name': 'test0', 'scope': 'batman', 'data_dir': self.data_dir,
'config_dir': self.config_dir, 'retry_timeout': 10, 'pgpass': '/tmp/pgpass0',
'listen': '127.0.0.2, 127.0.0.3:5432', 'connect_address': '127.0.0.2:5432',
'authentication': {'superuser': {'username': 'test', 'password': 'test'},
'replication': {'username': 'replicator', 'password': 'rep-pass'}},
'remove_data_directory_on_rewind_failure': True,
'use_pg_rewind': True, 'pg_ctl_timeout': 'bla',
'parameters': self._PARAMETERS,
'recovery_conf': {'foo': 'bar'},
'pg_hba': ['host all all 0.0.0.0/0 md5'],
'callbacks': {'on_start': 'true', 'on_stop': 'true', 'on_reload': 'true',
'on_restart': 'true', 'on_role_change': 'true'}})
self.p._callback_executor = Mock()
self.leadermem = Member(0, 'leader', 28, {'conn_url': 'postgres://replicator:[email protected]:5435/postgres'})
self.leader = Leader(-1, 28, self.leadermem)
self.other = Member(0, 'test-1', 28, {'conn_url': 'postgres://replicator:[email protected]:5433/postgres',
'tags': {'replicatefrom': 'leader'}})
self.me = Member(0, 'test0', 28, {'conn_url': 'postgres://replicator:[email protected]:5434/postgres'})
def tearDown(self):
shutil.rmtree('data')
def test_get_initdb_options(self):
self.assertEquals(self.p.get_initdb_options([{'encoding': 'UTF8'}, 'data-checksums']),
['--encoding=UTF8', '--data-checksums'])
self.assertRaises(Exception, self.p.get_initdb_options, [{'pgdata': 'bar'}])
self.assertRaises(Exception, self.p.get_initdb_options, [{'foo': 'bar', 1: 2}])
self.assertRaises(Exception, self.p.get_initdb_options, [1])
@patch('os.path.exists', Mock(return_value=True))
@patch('os.unlink', Mock())
def test_delete_trigger_file(self):
self.p.delete_trigger_file()
@patch('subprocess.Popen')
@patch.object(Postgresql, 'wait_for_startup')
@patch.object(Postgresql, 'wait_for_port_open')
@patch.object(Postgresql, 'is_running')
def test_start(self, mock_is_running, mock_wait_for_port_open, mock_wait_for_startup, mock_popen):
mock_is_running.return_value = MockPostmaster()
mock_wait_for_port_open.return_value = True
mock_wait_for_startup.return_value = False
mock_popen.return_value.stdout.readline.return_value = '123'
self.assertTrue(self.p.start())
mock_is_running.return_value = None
mock_postmaster = MockPostmaster()
with patch.object(PostmasterProcess, 'start', return_value=mock_postmaster):
pg_conf = os.path.join(self.data_dir, 'postgresql.conf')
open(pg_conf, 'w').close()
self.assertFalse(self.p.start(task=CriticalTask()))
with open(pg_conf) as f:
lines = f.readlines()
self.assertTrue("f.oo = 'bar'\n" in lines)
mock_wait_for_startup.return_value = None
self.assertFalse(self.p.start(10))
self.assertIsNone(self.p.start())
mock_wait_for_port_open.return_value = False
self.assertFalse(self.p.start())
task = CriticalTask()
task.cancel()
self.assertFalse(self.p.start(task=task))
self.p.cancel()
self.assertFalse(self.p.start())
@patch.object(Postgresql, 'pg_isready')
@patch('patroni.postgresql.polling_loop', Mock(return_value=range(1)))
def test_wait_for_port_open(self, mock_pg_isready):
mock_pg_isready.return_value = STATE_NO_RESPONSE
mock_postmaster = MockPostmaster(is_running=False)
# No pid file and postmaster death
self.assertFalse(self.p.wait_for_port_open(mock_postmaster, 1))
mock_postmaster.is_running.return_value = True
# timeout
self.assertFalse(self.p.wait_for_port_open(mock_postmaster, 1))
#.........这里部分代码省略.........
示例3: __init__
# 需要导入模块: from patroni.postgresql import Postgresql [as 别名]
# 或者: from patroni.postgresql.Postgresql import is_running [as 别名]
class Patroni:
def __init__(self, config):
self.nap_time = config['loop_wait']
self.postgresql = Postgresql(config['postgresql'])
self.ha = Ha(self.postgresql, self.get_dcs(self.postgresql.name, config))
host, port = config['restapi']['listen'].split(':')
self.api = RestApiServer(self, config['restapi'])
self.next_run = time.time()
self.shutdown_member_ttl = 300
@staticmethod
def get_dcs(name, config):
if 'etcd' in config:
return Etcd(name, config['etcd'])
if 'zookeeper' in config:
return ZooKeeper(name, config['zookeeper'])
raise Exception('Can not find sutable configuration of distributed configuration store')
def touch_member(self, ttl=None):
connection_string = self.postgresql.connection_string + '?application_name=' + self.api.connection_string
if self.ha.cluster:
for m in self.ha.cluster.members:
# Do not update member TTL when it is far from being expired
if m.name == self.postgresql.name and m.real_ttl() > self.shutdown_member_ttl:
return True
return self.ha.dcs.touch_member(connection_string, ttl)
def cleanup_on_failed_initialization(self):
""" cleanup the DCS if initialization was not successfull """
logger.info("removing initialize key after failed attempt to initialize the cluster")
self.ha.dcs.cancel_initialization()
self.touch_member(self.shutdown_member_ttl)
self.postgresql.stop()
self.postgresql.move_data_directory()
def initialize(self):
# wait for etcd to be available
while not self.touch_member():
logger.info('waiting on DCS')
sleep(5)
# is data directory empty?
if self.postgresql.data_directory_empty():
while True:
try:
cluster = self.ha.dcs.get_cluster()
if not cluster.is_unlocked(): # the leader already exists
if not cluster.initialize:
self.ha.dcs.initialize()
self.postgresql.bootstrap(cluster.leader)
break
# racing to initialize
elif not cluster.initialize and self.ha.dcs.initialize():
try:
self.postgresql.bootstrap()
except:
# bail out and clean the initialize flag.
self.cleanup_on_failed_initialization()
raise
self.ha.dcs.take_leader()
break
except DCSError:
logger.info('waiting on DCS')
sleep(5)
elif self.postgresql.is_running():
self.postgresql.load_replication_slots()
def schedule_next_run(self):
if self.postgresql.is_promoted:
self.next_run = time.time()
self.next_run += self.nap_time
current_time = time.time()
nap_time = self.next_run - current_time
if nap_time <= 0:
self.next_run = current_time
else:
self.ha.dcs.watch(nap_time)
def run(self):
self.api.start()
self.next_run = time.time()
while True:
self.touch_member()
logger.info(self.ha.run_cycle())
try:
if self.ha.state_handler.is_leader():
self.ha.cluster and self.ha.state_handler.create_replication_slots(self.ha.cluster)
else:
self.ha.state_handler.drop_replication_slots()
except:
logger.exception('Exception when changing replication slots')
reap_children()
self.schedule_next_run()示例4: TestPostgresql
# 需要导入模块: from patroni.postgresql import Postgresql [as 别名]
# 或者: from patroni.postgresql.Postgresql import is_running [as 别名]
class TestPostgresql(unittest.TestCase):
_PARAMETERS = {'wal_level': 'hot_standby', 'max_replication_slots': 5, 'f.oo': 'bar',
'search_path': 'public', 'hot_standby': 'on', 'max_wal_senders': 5,
'wal_keep_segments': 8, 'wal_log_hints': 'on', 'max_locks_per_transaction': 64,
'max_worker_processes': 8, 'max_connections': 100, 'max_prepared_transactions': 0,
'track_commit_timestamp': 'off'}
@patch('subprocess.call', Mock(return_value=0))
@patch('psycopg2.connect', psycopg2_connect)
@patch('os.rename', Mock())
@patch.object(Postgresql, 'get_major_version', Mock(return_value=9.6))
@patch.object(Postgresql, 'is_running', Mock(return_value=True))
def setUp(self):
self.data_dir = 'data/test0'
if not os.path.exists(self.data_dir):
os.makedirs(self.data_dir)
self.p = Postgresql({'name': 'test0', 'scope': 'batman', 'data_dir': self.data_dir, 'retry_timeout': 10,
'listen': '127.0.0.1, *:5432', 'connect_address': '127.0.0.2:5432',
'authentication': {'superuser': {'username': 'test', 'password': 'test'},
'replication': {'username': 'replicator', 'password': 'rep-pass'}},
'remove_data_directory_on_rewind_failure': True,
'use_pg_rewind': True, 'pg_ctl_timeout': 'bla',
'parameters': self._PARAMETERS,
'recovery_conf': {'foo': 'bar'},
'callbacks': {'on_start': 'true', 'on_stop': 'true',
'on_restart': 'true', 'on_role_change': 'true',
'on_reload': 'true'
},
'restore': 'true'})
self.p._callback_executor = Mock()
self.leadermem = Member(0, 'leader', 28, {'conn_url': 'postgres://replicator:[email protected]:5435/postgres'})
self.leader = Leader(-1, 28, self.leadermem)
self.other = Member(0, 'test-1', 28, {'conn_url': 'postgres://replicator:[email protected]:5433/postgres',
'tags': {'replicatefrom': 'leader'}})
self.me = Member(0, 'test0', 28, {'conn_url': 'postgres://replicator:[email protected]:5434/postgres'})
def tearDown(self):
shutil.rmtree('data')
def test_get_initdb_options(self):
self.assertEquals(self.p.get_initdb_options([{'encoding': 'UTF8'}, 'data-checksums']),
['--encoding=UTF8', '--data-checksums'])
self.assertRaises(Exception, self.p.get_initdb_options, [{'pgdata': 'bar'}])
self.assertRaises(Exception, self.p.get_initdb_options, [{'foo': 'bar', 1: 2}])
self.assertRaises(Exception, self.p.get_initdb_options, [1])
@patch('os.path.exists', Mock(return_value=True))
@patch('os.unlink', Mock())
def test_delete_trigger_file(self):
self.p.delete_trigger_file()
@patch('subprocess.Popen')
@patch.object(Postgresql, 'wait_for_startup')
@patch.object(Postgresql, 'wait_for_port_open')
@patch.object(Postgresql, 'is_running')
def test_start(self, mock_is_running, mock_wait_for_port_open, mock_wait_for_startup, mock_popen):
mock_is_running.return_value = True
mock_wait_for_port_open.return_value = True
mock_wait_for_startup.return_value = False
mock_popen.stdout.readline.return_value = '123'
self.assertTrue(self.p.start())
mock_is_running.return_value = False
open(os.path.join(self.data_dir, 'postmaster.pid'), 'w').close()
pg_conf = os.path.join(self.data_dir, 'postgresql.conf')
open(pg_conf, 'w').close()
self.assertFalse(self.p.start())
with open(pg_conf) as f:
lines = f.readlines()
self.assertTrue("f.oo = 'bar'\n" in lines)
mock_wait_for_startup.return_value = None
self.assertFalse(self.p.start(10))
self.assertIsNone(self.p.start())
mock_wait_for_port_open.return_value = False
self.assertFalse(self.p.start())
@patch.object(Postgresql, 'pg_isready')
@patch.object(Postgresql, 'read_pid_file')
@patch.object(Postgresql, 'is_pid_running')
@patch('patroni.postgresql.polling_loop', Mock(return_value=range(1)))
def test_wait_for_port_open(self, mock_is_pid_running, mock_read_pid_file, mock_pg_isready):
mock_is_pid_running.return_value = False
mock_pg_isready.return_value = STATE_NO_RESPONSE
# No pid file and postmaster death
mock_read_pid_file.return_value = {}
self.assertFalse(self.p.wait_for_port_open(42, 100., 1))
mock_is_pid_running.return_value = True
# timeout
mock_read_pid_file.return_value = {'pid', 1}
self.assertFalse(self.p.wait_for_port_open(42, 100., 1))
# Garbage pid
mock_read_pid_file.return_value = {'pid': 'garbage', 'start_time': '101', 'data_dir': '',
'socket_dir': '', 'port': '', 'listen_addr': ''}
self.assertFalse(self.p.wait_for_port_open(42, 100., 1))
#.........这里部分代码省略.........