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From "Jason Gustafson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-6362) auto commit not work since coordinatorUnknown() is always true.
Date Fri, 02 Feb 2018 00:27:14 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-6362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16349578#comment-16349578
] 

Jason Gustafson commented on KAFKA-6362:
----------------------------------------

[~RenkaiGe] Thanks for filing the issue and sorry for getting to it so late. As far as I can
tell, this should only be affecting "simple" consumer usage with assign(). Can you confirm
whether that's the case?

> auto commit not work since coordinatorUnknown() is always true.
> ---------------------------------------------------------------
>
>                 Key: KAFKA-6362
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6362
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients
>    Affects Versions: 0.10.2.1
>            Reporter: Renkai Ge
>            Assignee: huxihx
>            Priority: Major
>
> {code}
> [2017-12-14 20:09:23.501] [Kafka 0.10 Fetcher for Source: source_bj-docker-large (14/40)]
INFO  org.apache.kafka.clients.consumer.ConsumerConfig - ConsumerConfig values: 
> 	auto.commit.interval.ms = 5000
> 	auto.offset.reset = latest
> 	bootstrap.servers = [11.192.77.42:3002, 11.192.73.43:3002, 11.192.73.66:3002]
> 	check.crcs = true
> 	client.id = 
> 	connections.max.idle.ms = 540000
> 	enable.auto.commit = true
> 	exclude.internal.topics = true
> 	fetch.max.bytes = 52428800
> 	fetch.max.wait.ms = 500
> 	fetch.min.bytes = 1
> 	group.id = tcprtdetail_flink
> 	heartbeat.interval.ms = 3000
> 	interceptor.classes = null
> 	key.deserializer = class org.apache.kafka.common.serialization.ByteArrayDeserializer
> 	max.partition.fetch.bytes = 1048576
> 	max.poll.interval.ms = 300000
> 	max.poll.records = 500
> 	metadata.max.age.ms = 300000
> 	metric.reporters = []
> 	metrics.num.samples = 2
> 	metrics.recording.level = INFO
> 	metrics.sample.window.ms = 30000
> 	partition.assignment.strategy = [class org.apache.kafka.clients.consumer.RangeAssignor]
> 	receive.buffer.bytes = 65536
> 	reconnect.backoff.ms = 50
> 	request.timeout.ms = 305000
> 	retry.backoff.ms = 100
> 	sasl.jaas.config = null
> 	sasl.kerberos.kinit.cmd = /usr/bin/kinit
> 	sasl.kerberos.min.time.before.relogin = 60000
> 	sasl.kerberos.service.name = null
> 	sasl.kerberos.ticket.renew.jitter = 0.05
> 	sasl.kerberos.ticket.renew.window.factor = 0.8
> 	sasl.mechanism = GSSAPI
> 	security.protocol = PLAINTEXT
> 	send.buffer.bytes = 131072
> 	session.timeout.ms = 10000
> 	ssl.cipher.suites = null
> 	ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
> 	ssl.endpoint.identification.algorithm = null
> 	ssl.key.password = null
> 	ssl.keymanager.algorithm = SunX509
> 	ssl.keystore.location = null
> 	ssl.keystore.password = null
> 	ssl.keystore.type = JKS
> 	ssl.protocol = TLS
> 	ssl.provider = null
> 	ssl.secure.random.implementation = null
> 	ssl.trustmanager.algorithm = PKIX
> 	ssl.truststore.location = null
> 	ssl.truststore.password = null
> 	ssl.truststore.type = JKS
> 	value.deserializer = class org.apache.kafka.common.serialization.ByteArrayDeserializer
> [2017-12-14 20:09:23.502] [Kafka 0.10 Fetcher for Source: source_bj-docker-large (14/40)]
INFO  org.apache.kafka.common.utils.AppInfoParser - Kafka version : 0.10.2.1
> [2017-12-14 20:09:23.502] [Kafka 0.10 Fetcher for Source: source_bj-docker-large (14/40)]
INFO  org.apache.kafka.common.utils.AppInfoParser - Kafka commitId : e89bffd6b2eff799
> {code}
> My kafka java client cannot auto commit.After add some debug log,I found that the coordinatorUnknown()
function in [ConsumerCoordinator.java#L604|https://github.com/apache/kafka/blob/0.10.2.1/clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java#L604]
always returns true,and nextAutoCommitDeadline just increases infinitly.Should there be a
lookupCoordinator() after line 604 like in [ConsumerCoordinator.java#L508|https://github.com/apache/kafka/blob/0.10.2.1/clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java#L508]?After
I add lookupCoordinator() next to line 604.The consumer can auto commit offset properly.



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