本文整理汇总了Python中cassandra.cluster.Cluster.on_up方法的典型用法代码示例。如果您正苦于以下问题：Python Cluster.on_up方法的具体用法？Python Cluster.on_up怎么用？Python Cluster.on_up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cassandra.cluster.Cluster的用法示例。
在下文中一共展示了Cluster.on_up方法的2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: test_prepare_on_ignored_hosts
# 需要导入模块: from cassandra.cluster import Cluster [as 别名]
# 或者: from cassandra.cluster.Cluster import on_up [as 别名]
def test_prepare_on_ignored_hosts(self):
cluster = Cluster(protocol_version=PROTOCOL_VERSION,
load_balancing_policy=self.ignore_node_3_policy)
session = cluster.connect()
cluster.reprepare_on_up, cluster.prepare_on_all_hosts = True, False
hosts = cluster.metadata.all_hosts()
session.execute("CREATE KEYSPACE clustertests "
"WITH replication = "
"{'class': 'SimpleStrategy', 'replication_factor': '1'}")
session.execute("CREATE TABLE clustertests.tab (a text, PRIMARY KEY (a))")
# assign to an unused variable so cluster._prepared_statements retains
# reference
_ = session.prepare("INSERT INTO clustertests.tab (a) VALUES ('a')") # noqa
cluster.connection_factory = Mock(wraps=cluster.connection_factory)
unignored_address = '127.0.0.1'
unignored_host = next(h for h in hosts if h.address == unignored_address)
ignored_host = next(h for h in hosts if h.address in self.ignored_addresses)
unignored_host.is_up = ignored_host.is_up = False
cluster.on_up(unignored_host)
cluster.on_up(ignored_host)
# the length of mock_calls will vary, but all should use the unignored
# address
for c in cluster.connection_factory.mock_calls:
self.assertEqual(call(unignored_address), c)
cluster.shutdown()示例2: test_on_down_and_up
# 需要导入模块: from cassandra.cluster import Cluster [as 别名]
# 或者: from cassandra.cluster.Cluster import on_up [as 别名]
def test_on_down_and_up(self):
cluster = Cluster()
session = cluster.connect()
host = cluster.metadata.all_hosts()[0]
host.monitor.signal_connection_failure(None)
cluster.on_down(host)
self.assertNotIn(host, session._pools)
host_reconnector = host._reconnection_handler
self.assertNotEqual(None, host_reconnector)
host.monitor.is_up = True
cluster.on_up(host)
self.assertEqual(None, host._reconnection_handler)
self.assertTrue(host_reconnector._cancelled)
self.assertIn(host, session._pools)