Python SimpleClient.close方法代码示例

# 需要导入模块: from kafka import SimpleClient [as 别名]
# 或者: from kafka.SimpleClient import close [as 别名]
    def assert_message_count(self, topic, check_count, timeout=10,
                             partitions=None, at_least=False):
        hosts = ','.join(['%s:%d' % (broker.host, broker.port)
                          for broker in self.brokers])

        client = SimpleClient(hosts, timeout=2)
        consumer = SimpleConsumer(client, None, topic,
                                  partitions=partitions,
                                  auto_commit=False,
                                  iter_timeout=timeout)

        started_at = time.time()
        pending = -1
        while pending < check_count and (time.time() - started_at < timeout):
            try:
                pending = consumer.pending(partitions)
            except FailedPayloadsError:
                pass
            time.sleep(0.5)

        consumer.stop()
        client.close()

        if pending < check_count:
            self.fail('Too few pending messages: found %d, expected %d' %
                      (pending, check_count))
        elif pending > check_count and not at_least:
            self.fail('Too many pending messages: found %d, expected %d' %
                      (pending, check_count))
        return True

# 需要导入模块: from kafka import SimpleClient [as 别名]
# 或者: from kafka.SimpleClient import close [as 别名]
class KafkaIntegrationTestCase(unittest.TestCase):
    create_client = True
    topic = None
    zk = None
    server = None

    def setUp(self):
        super(KafkaIntegrationTestCase, self).setUp()
        if not os.environ.get('KAFKA_VERSION'):
            self.skipTest('Integration test requires KAFKA_VERSION')

        if not self.topic:
            topic = "%s-%s" % (self.id()[self.id().rindex(".") + 1:], random_string(10))
            self.topic = topic

        if self.create_client:
            self.client = SimpleClient('%s:%d' % (self.server.host, self.server.port))

        self.client.ensure_topic_exists(self.topic)

        self._messages = {}

    def tearDown(self):
        super(KafkaIntegrationTestCase, self).tearDown()
        if not os.environ.get('KAFKA_VERSION'):
            return

        if self.create_client:
            self.client.close()

    def current_offset(self, topic, partition):
        try:
            offsets, = self.client.send_offset_request([OffsetRequestPayload(topic, partition, -1, 1)])
        except:
            # XXX: We've seen some UnknownErrors here and cant debug w/o server logs
            self.zk.child.dump_logs()
            self.server.child.dump_logs()
            raise
        else:
            return offsets.offsets[0]

    def msgs(self, iterable):
        return [ self.msg(x) for x in iterable ]

    def msg(self, s):
        if s not in self._messages:
            self._messages[s] = '%s-%s-%s' % (s, self.id(), str(uuid.uuid4()))

        return self._messages[s].encode('utf-8')

    def key(self, k):
        return k.encode('utf-8')

# 需要导入模块: from kafka import SimpleClient [as 别名]
# 或者: from kafka.SimpleClient import close [as 别名]
class KafkaIntegrationTestCase(unittest.TestCase):
    create_client = True
    topic = None
    zk = None
    server = None

    def setUp(self):
        super(KafkaIntegrationTestCase, self).setUp()
        if not os.environ.get('KAFKA_VERSION'):
            self.skipTest('Integration test requires KAFKA_VERSION')

        if not self.topic:
            topic = "%s-%s" % (self.id()[self.id().rindex(".") + 1:], random_string(10))
            self.topic = topic

        if self.create_client:
            self.client = SimpleClient('%s:%d' % (self.server.host, self.server.port))

        timeout = time.time() + 30
        while time.time() < timeout:
            try:
                self.client.load_metadata_for_topics(self.topic, ignore_leadernotavailable=False)
                if self.client.has_metadata_for_topic(topic):
                    break
            except (LeaderNotAvailableError, InvalidTopicError):
                time.sleep(1)
        else:
            raise KafkaTimeoutError('Timeout loading topic metadata!')


        # Ensure topic partitions have been created on all brokers to avoid UnknownPartitionErrors
        # TODO: It might be a good idea to move this to self.client.ensure_topic_exists
        for partition in self.client.get_partition_ids_for_topic(self.topic):
            while True:
                try:
                    req = OffsetRequestPayload(self.topic, partition, -1, 100)
                    self.client.send_offset_request([req])
                    break
                except (NotLeaderForPartitionError, UnknownTopicOrPartitionError, FailedPayloadsError) as e:
                    if time.time() > timeout:
                        raise KafkaTimeoutError('Timeout loading topic metadata!')
                    time.sleep(.1)

        self._messages = {}

    def tearDown(self):
        super(KafkaIntegrationTestCase, self).tearDown()
        if not os.environ.get('KAFKA_VERSION'):
            return

        if self.create_client:
            self.client.close()

    def current_offset(self, topic, partition):
        try:
            offsets, = self.client.send_offset_request([OffsetRequestPayload(topic,
                                                                             partition, -1, 1)])
        except Exception:
            # XXX: We've seen some UnknownErrors here and can't debug w/o server logs
            self.zk.child.dump_logs()
            self.server.child.dump_logs()
            raise
        else:
            return offsets.offsets[0]

    def msgs(self, iterable):
        return [self.msg(x) for x in iterable]

    def msg(self, s):
        if s not in self._messages:
            self._messages[s] = '%s-%s-%s' % (s, self.id(), str(uuid.uuid4()))

        return self._messages[s].encode('utf-8')

    def key(self, k):
        return k.encode('utf-8')

# 需要导入模块: from kafka import SimpleClient [as 别名]
# 或者: from kafka.SimpleClient import close [as 别名]
class TestFailover(KafkaIntegrationTestCase):
    create_client = False

    def setUp(self):
        if not os.environ.get('KAFKA_VERSION'):
            self.skipTest('integration test requires KAFKA_VERSION')

        zk_chroot = random_string(10)
        replicas = 3
        partitions = 3

        # mini zookeeper, 3 kafka brokers
        self.zk = ZookeeperFixture.instance()
        kk_args = [self.zk.host, self.zk.port]
        kk_kwargs = {'zk_chroot': zk_chroot, 'replicas': replicas,
                     'partitions': partitions}
        self.brokers = [KafkaFixture.instance(i, *kk_args, **kk_kwargs)
                        for i in range(replicas)]

        hosts = ['%s:%d' % (b.host, b.port) for b in self.brokers]
        self.client = SimpleClient(hosts, timeout=2)
        super(TestFailover, self).setUp()

    def tearDown(self):
        super(TestFailover, self).tearDown()
        if not os.environ.get('KAFKA_VERSION'):
            return

        self.client.close()
        for broker in self.brokers:
            broker.close()
        self.zk.close()

    def test_switch_leader(self):
        topic = self.topic
        partition = 0

        # Testing the base Producer class here so that we can easily send
        # messages to a specific partition, kill the leader for that partition
        # and check that after another broker takes leadership the producer
        # is able to resume sending messages

        # require that the server commit messages to all in-sync replicas
        # so that failover doesn't lose any messages on server-side
        # and we can assert that server-side message count equals client-side
        producer = Producer(self.client, async=False,
                            req_acks=Producer.ACK_AFTER_CLUSTER_COMMIT)

        # Send 100 random messages to a specific partition
        self._send_random_messages(producer, topic, partition, 100)

        # kill leader for partition
        self._kill_leader(topic, partition)

        # expect failure, but don't wait more than 60 secs to recover
        recovered = False
        started = time.time()
        timeout = 60
        while not recovered and (time.time() - started) < timeout:
            try:
                log.debug("attempting to send 'success' message after leader killed")
                producer.send_messages(topic, partition, b'success')
                log.debug("success!")
                recovered = True
            except (FailedPayloadsError, ConnectionError, RequestTimedOutError,
                    NotLeaderForPartitionError):
                log.debug("caught exception sending message -- will retry")
                continue

        # Verify we successfully sent the message
        self.assertTrue(recovered)

        # send some more messages to new leader
        self._send_random_messages(producer, topic, partition, 100)

        # count number of messages
        # Should be equal to 100 before + 1 recovery + 100 after
        # at_least=True because exactly once delivery isn't really a thing
        self.assert_message_count(topic, 201, partitions=(partition,),
                                  at_least=True)

    def test_switch_leader_async(self):
        topic = self.topic
        partition = 0

        # Test the base class Producer -- send_messages to a specific partition
        producer = Producer(self.client, async=True,
                            batch_send_every_n=15,
                            batch_send_every_t=3,
                            req_acks=Producer.ACK_AFTER_CLUSTER_COMMIT,
                            async_log_messages_on_error=False)

        # Send 10 random messages
        self._send_random_messages(producer, topic, partition, 10)
        self._send_random_messages(producer, topic, partition + 1, 10)

        # kill leader for partition
        self._kill_leader(topic, partition)

        log.debug("attempting to send 'success' message after leader killed")
#.........这里部分代码省略.........