本文整理汇总了Python中aiokafka.client.AIOKafkaClient.load_metadata_for_topics方法的典型用法代码示例。如果您正苦于以下问题：Python AIOKafkaClient.load_metadata_for_topics方法的具体用法？Python AIOKafkaClient.load_metadata_for_topics怎么用？Python AIOKafkaClient.load_metadata_for_topics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aiokafka.client.AIOKafkaClient的用法示例。
在下文中一共展示了AIOKafkaClient.load_metadata_for_topics方法的8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_get_leader_for_unassigned_partitions
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_get_leader_for_unassigned_partitions(self, protocol):
@asyncio.coroutine
def recv(request_id):
return b"response"
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
mocked_conns[("broker_1", 4567)].recv.side_effect = recv
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [
TopicMetadata("topic_no_partitions", NO_LEADER, []),
TopicMetadata("topic_unknown", UNKNOWN_TOPIC_OR_PARTITION, []),
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
self.assertDictEqual({}, client._topics_to_brokers)
with self.assertRaises(LeaderNotAvailableError):
self.loop.run_until_complete(client._get_leader_for_partition("topic_no_partitions", 0))
with self.assertRaises(UnknownTopicOrPartitionError):
self.loop.run_until_complete(client._get_leader_for_partition("topic_unknown", 0))示例2: test_send_produce_request_raises_when_noleader
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_send_produce_request_raises_when_noleader(self, protocol):
"""Send producer request raises LeaderNotAvailableError
if leader is not available"""
@asyncio.coroutine
def recv(request_id):
return b"response"
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
mocked_conns[("broker_1", 4567)].recv.side_effect = recv
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [
TopicMetadata(
"topic_noleader",
NO_ERROR,
[
PartitionMetadata("topic_noleader", 0, -1, [], [], NO_LEADER),
PartitionMetadata("topic_noleader", 1, -1, [], [], NO_LEADER),
],
)
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
requests = [ProduceRequest("topic_noleader", 0, [create_message("a"), create_message("b")])]
with self.assertRaises(LeaderNotAvailableError):
self.loop.run_until_complete(client.send_produce_request(requests))示例3: test_ensure_topic_exists
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_ensure_topic_exists(self, protocol):
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
fut = asyncio.Future(loop=self.loop)
fut.set_result(b"response")
mocked_conns[("broker_1", 4567)].send.return_value = fut
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [
TopicMetadata("topic_still_creating", NO_LEADER, []),
TopicMetadata("topic_doesnt_exist", UNKNOWN_TOPIC_OR_PARTITION, []),
TopicMetadata(
"topic_noleaders",
NO_ERROR,
[
PartitionMetadata("topic_noleaders", 0, -1, [], [], NO_LEADER),
PartitionMetadata("topic_noleaders", 1, -1, [], [], NO_LEADER),
],
),
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
with self.assertRaises(UnknownTopicOrPartitionError):
self.loop.run_until_complete(client.ensure_topic_exists("topic_doesnt_exist", timeout=1))
with self.assertRaises(KafkaTimeoutError):
self.loop.run_until_complete(client.ensure_topic_exists("topic_still_creating", timeout=1))
# This should not raise
self.loop.run_until_complete(client.ensure_topic_exists("topic_noleaders", timeout=1))示例4: test_has_metadata_for_topic
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_has_metadata_for_topic(self, protocol):
@asyncio.coroutine
def recv(request_id):
return b"response"
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
mocked_conns[("broker_1", 4567)].recv.side_effect = recv
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [
TopicMetadata("topic_still_creating", NO_LEADER, []),
TopicMetadata("topic_doesnt_exist", UNKNOWN_TOPIC_OR_PARTITION, []),
TopicMetadata(
"topic_noleaders",
NO_ERROR,
[
PartitionMetadata("topic_noleaders", 0, -1, [], [], NO_LEADER),
PartitionMetadata("topic_noleaders", 1, -1, [], [], NO_LEADER),
],
),
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
# Topics with no partitions return False
self.assertFalse(client.has_metadata_for_topic("topic_still_creating"))
self.assertFalse(client.has_metadata_for_topic("topic_doesnt_exist"))
# Topic with partition metadata, but no leaders return True
self.assertTrue(client.has_metadata_for_topic("topic_noleaders"))示例5: test_get_leader_exceptions_when_noleader
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_get_leader_exceptions_when_noleader(self, protocol):
@asyncio.coroutine
def recv(request_id):
return b"response"
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
mocked_conns[("broker_1", 4567)].recv.side_effect = recv
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [
TopicMetadata(
"topic_noleader",
NO_ERROR,
[
PartitionMetadata("topic_noleader", 0, -1, [], [], NO_LEADER),
PartitionMetadata("topic_noleader", 1, -1, [], [], NO_LEADER),
],
)
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
self.assertDictEqual(
{TopicAndPartition("topic_noleader", 0): None, TopicAndPartition("topic_noleader", 1): None},
client._topics_to_brokers,
)
# No leader partitions -- raise LeaderNotAvailableError
with self.assertRaises(LeaderNotAvailableError):
self.assertIsNone(self.loop.run_until_complete(client._get_leader_for_partition("topic_noleader", 0)))
with self.assertRaises(LeaderNotAvailableError):
self.assertIsNone(self.loop.run_until_complete(client._get_leader_for_partition("topic_noleader", 1)))
# Unknown partitions -- raise UnknownTopicOrPartitionError
with self.assertRaises(UnknownTopicOrPartitionError):
self.assertIsNone(self.loop.run_until_complete(client._get_leader_for_partition("topic_noleader", 2)))
topics = [
TopicMetadata(
"topic_noleader",
NO_ERROR,
[
PartitionMetadata("topic_noleader", 0, 0, [0, 1], [0, 1], NO_ERROR),
PartitionMetadata("topic_noleader", 1, 1, [1, 0], [1, 0], NO_ERROR),
],
)
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.assertEqual(
brokers[0], self.loop.run_until_complete(client._get_leader_for_partition("topic_noleader", 0))
)
self.assertEqual(
brokers[1], self.loop.run_until_complete(client._get_leader_for_partition("topic_noleader", 1))
)示例6: test_send_produce_request_raises_when_topic_unknown
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_send_produce_request_raises_when_topic_unknown(self, protocol):
@asyncio.coroutine
def recv(request_id):
return b"response"
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
mocked_conns[("broker_1", 4567)].recv.side_effect = recv
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [TopicMetadata("topic_doesnt_exist", UNKNOWN_TOPIC_OR_PARTITION, [])]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
requests = [ProduceRequest("topic_doesnt_exist", 0, [create_message("a"), create_message("b")])]
with self.assertRaises(UnknownTopicOrPartitionError):
self.loop.run_until_complete(client.send_produce_request(requests))示例7: test_get_leader_for_partitions_reloads_metadata
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_get_leader_for_partitions_reloads_metadata(self, protocol):
"Get leader for partitions reload metadata if it is not available"
@asyncio.coroutine
def recv(request_id):
return b"response"
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
mocked_conns[("broker_1", 4567)].recv.side_effect = recv
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [TopicMetadata("topic_no_partitions", NO_LEADER, [])]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
# topic metadata is loaded but empty
self.assertDictEqual({}, client._topics_to_brokers)
topics = [
TopicMetadata(
"topic_one_partition",
NO_ERROR,
[PartitionMetadata("topic_no_partition", 0, 0, [0, 1], [0, 1], NO_ERROR)],
)
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
# calling _get_leader_for_partition (from any broker aware request)
# will try loading metadata again for the same topic
leader = self.loop.run_until_complete(client._get_leader_for_partition("topic_one_partition", 0))
self.assertEqual(brokers[0], leader)
self.assertDictEqual({TopicAndPartition("topic_one_partition", 0): brokers[0]}, client._topics_to_brokers)示例8: test_load_metadata
# 需要导入模块: from aiokafka.client import AIOKafkaClient [as 别名]
# 或者: from aiokafka.client.AIOKafkaClient import load_metadata_for_topics [as 别名]
def test_load_metadata(self, protocol):
@asyncio.coroutine
def recv(request_id):
return b"response"
mocked_conns = {("broker_1", 4567): mock.MagicMock()}
mocked_conns[("broker_1", 4567)].recv.side_effect = recv
client = AIOKafkaClient(["broker_1:4567"], loop=self.loop)
client._conns = mocked_conns
brokers = [BrokerMetadata(0, "broker_1", 4567), BrokerMetadata(1, "broker_2", 5678)]
topics = [
TopicMetadata("topic_1", NO_ERROR, [PartitionMetadata("topic_1", 0, 1, [1, 2], [1, 2], NO_ERROR)]),
TopicMetadata(
"topic_noleader",
NO_ERROR,
[
PartitionMetadata("topic_noleader", 0, -1, [], [], NO_LEADER),
PartitionMetadata("topic_noleader", 1, -1, [], [], NO_LEADER),
],
),
TopicMetadata("topic_no_partitions", NO_LEADER, []),
TopicMetadata("topic_unknown", UNKNOWN_TOPIC_OR_PARTITION, []),
TopicMetadata(
"topic_3",
NO_ERROR,
[
PartitionMetadata("topic_3", 0, 0, [0, 1], [0, 1], NO_ERROR),
PartitionMetadata("topic_3", 1, 1, [1, 0], [1, 0], NO_ERROR),
PartitionMetadata("topic_3", 2, 0, [0, 1], [0, 1], NO_ERROR),
],
),
TopicMetadata(
"topic_4",
NO_ERROR,
[
PartitionMetadata("topic_4", 0, 0, [0, 1], [0, 1], NO_ERROR),
PartitionMetadata("topic_4", 1, 1, [1, 0], [1, 0], REPLICA_NOT_AVAILABLE),
],
),
]
protocol.decode_metadata_response.return_value = MetadataResponse(brokers, topics)
self.loop.run_until_complete(client.load_metadata_for_topics())
self.assertDictEqual(
{
TopicAndPartition("topic_1", 0): brokers[1],
TopicAndPartition("topic_noleader", 0): None,
TopicAndPartition("topic_noleader", 1): None,
TopicAndPartition("topic_3", 0): brokers[0],
TopicAndPartition("topic_3", 1): brokers[1],
TopicAndPartition("topic_3", 2): brokers[0],
TopicAndPartition("topic_4", 0): brokers[0],
TopicAndPartition("topic_4", 1): brokers[1],
},
client._topics_to_brokers,
)
# if we ask for metadata explicitly, it should raise errors
with self.assertRaises(LeaderNotAvailableError):
self.loop.run_until_complete(client.load_metadata_for_topics("topic_no_partitions"))
with self.assertRaises(UnknownTopicOrPartitionError):
self.loop.run_until_complete(client.load_metadata_for_topics("topic_unknown"))
# This should not raise
self.loop.run_until_complete(client.load_metadata_for_topics("topic_no_leader"))
# This should not raise ReplicaNotAvailableError
self.loop.run_until_complete(client.load_metadata_for_topics("topic_4"))