本文整理汇总了Python中kafka.client_async.KafkaClient.is_ready方法的典型用法代码示例。如果您正苦于以下问题：Python KafkaClient.is_ready方法的具体用法？Python KafkaClient.is_ready怎么用？Python KafkaClient.is_ready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kafka.client_async.KafkaClient的用法示例。
在下文中一共展示了KafkaClient.is_ready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_is_ready
# 需要导入模块: from kafka.client_async import KafkaClient [as 别名]
# 或者: from kafka.client_async.KafkaClient import is_ready [as 别名]
def test_is_ready(mocker, conn):
cli = KafkaClient()
cli._maybe_connect(0)
cli._maybe_connect(1)
# metadata refresh blocks ready nodes
assert cli.is_ready(0)
assert cli.is_ready(1)
cli._metadata_refresh_in_progress = True
assert not cli.is_ready(0)
assert not cli.is_ready(1)
# requesting metadata update also blocks ready nodes
cli._metadata_refresh_in_progress = False
assert cli.is_ready(0)
assert cli.is_ready(1)
cli.cluster.request_update()
cli.cluster.config['retry_backoff_ms'] = 0
assert not cli._metadata_refresh_in_progress
assert not cli.is_ready(0)
assert not cli.is_ready(1)
cli.cluster._need_update = False
# if connection can't send more, not ready
assert cli.is_ready(0)
conn.can_send_more.return_value = False
assert not cli.is_ready(0)
conn.can_send_more.return_value = True
# disconnected nodes, not ready
assert cli.is_ready(0)
conn.state = ConnectionStates.DISCONNECTED
assert not cli.is_ready(0)示例2: __init__
# 需要导入模块: from kafka.client_async import KafkaClient [as 别名]
# 或者: from kafka.client_async.KafkaClient import is_ready [as 别名]
class KafkaConsumerLag:
def __init__(self, bootstrap_servers):
self.client = KafkaClient(bootstrap_servers=bootstrap_servers)
self.client.check_version()
def _send(self, broker_id, request, response_type=None):
f = self.client.send(broker_id, request)
response = self.client.poll(future=f)
if response_type:
if response and len(response) > 0:
for r in response:
if isinstance(r, response_type):
return r
else:
if response and len(response) > 0:
return response[0]
return None
def check(self, group_topics=None, discovery=None):
"""
{
"<group>": {
"state": <str>,
"topics": {
"<topic>": {
"consumer_lag": <int>,
"partitions": {
"<partition>": {
"offset_first": <int>,
"offset_consumed": <int>,
"offset_last": <int>,
"lag": <int>
}
}
}
}
}
}
:param persist_groups:
:return: consumer statistics
"""
cluster = self.client.cluster
brokers = cluster.brokers()
# Consumer group ID -> list(topics)
if group_topics is None:
group_topics = {}
if discovery is None:
discovery = True
else:
group_topics = copy.deepcopy(group_topics)
# Set of consumer group IDs
consumer_groups = set(group_topics.iterkeys())
# Set of all known topics
topics = set(itertools.chain(*group_topics.itervalues()))
# Consumer group ID -> coordinating broker
consumer_coordinator = {}
# Coordinating broker - > list(consumer group IDs)
coordinator_consumers = {}
results = {}
for consumer_group in group_topics.iterkeys():
results[consumer_group] = {'state': None, 'topics': {}}
# Ensure connections to all brokers
for broker in brokers:
while not self.client.is_ready(broker.nodeId):
self.client.ready(broker.nodeId)
# Collect all active consumer groups
if discovery:
for broker in brokers:
response = self._send(broker.nodeId, _ListGroupsRequest(), _ListGroupsResponse)
if response:
for group in response.groups:
consumer_groups.add(group[0])
# Identify which broker is coordinating each consumer group
for group in consumer_groups:
response = self._send(next(iter(brokers)).nodeId, _GroupCoordinatorRequest(group), _GroupCoordinatorResponse)
if response:
consumer_coordinator[group] = response.coordinator_id
if response.coordinator_id not in coordinator_consumers:
coordinator_consumers[response.coordinator_id] = []
#.........这里部分代码省略.........