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https://issues.apache.org/jira/browse/KAFKA-3971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15968810#comment-15968810
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justdebugit commented on KAFKA-3971:
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kafka 0.9 is a very big very big very big very big very big very big very big
very big very big very big very big very big very big very big
very big very big very big very big very big very big very big very big very
big very big very big very big very big very big
very big very big very big very big very big very big very big very big very
big very big very big very big very big very big
very big very big very big very big very big very big very big very big very
big very big very big very big very big very big very big very big
shit shit shit shit shit shit shit shit shit shit shit shit shit shit shit shit
shit shit shit shit shit
> Consumers drop from coordinator and cannot reconnect
> ----------------------------------------------------
>
> Key: KAFKA-3971
> URL: https://issues.apache.org/jira/browse/KAFKA-3971
> Project: Kafka
> Issue Type: Bug
> Components: consumer
> Affects Versions: 0.9.0.1
> Environment: version 0.9.0.1
> Reporter: Lei Wang
> Labels: reliability
> Attachments: KAFKA-3971.txt
>
>
> From time to time, we're creating new topics, and all consumers will pickup
> those new topics. When starting to consume from these new topics, we often
> see some of random consumers cannot connect to the coordinator. The log will
> be flushed with the following log message tens of thousands every second:
> {noformat}
> 16/07/18 18:18:36.003 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.004 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> 16/07/18 18:18:36.005 INFO (AbstractCoordinator.java:529): Marking the
> coordinator 2147483645 dead.
> {noformat}
> the servers seem working fine, and other consumers are also happy.
> from the log, looks like it's retrying multiple times every millisecond but
> all failing.
> the same process are consuming from many topics, some of them are still
> working well, but those random topics will fail.
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