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From "Seweryn Habdank-Wojewodzki (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-5786) Yet another exception is causing that streamming app is zombie
Date Thu, 31 Aug 2017 09:33:00 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-5786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16148726#comment-16148726
] 

Seweryn Habdank-Wojewodzki commented on KAFKA-5786:
---------------------------------------------------

Thanks! I will observe mentioned by you tickets :-).

> Yet another exception is causing that streamming app is zombie
> --------------------------------------------------------------
>
>                 Key: KAFKA-5786
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5786
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Seweryn Habdank-Wojewodzki
>         Attachments: fatal-errors-by-rebalancing.zip
>
>
> Not handled exception in streamming app causes zombie state of the process.
> {code}
> 2017-08-24 15:17:40 WARN  StreamThread:978 - stream-thread [kafka-endpoint-1236e6d5-75f0-4c14-b025-78e632484a26-StreamThread-3]
Unexpected state transition from RUNNING to DEAD.
> 2017-08-24 15:17:40 FATAL StreamProcessor:67 - Caught unhandled exception: stream-thread
[kafka-endpoint-1236e6d5-75f0-4c14-b025-78e632484a26-StreamThread-3] Failed to rebalance.;
[org.apache.kafka.streams.processor.internals.StreamThread.pollRequests(StreamThread.java:589),
org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:553),
org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:527)] in thread
kafka-endpoint-1236e6d5-75f0-4c14-b025-78e632484a26-StreamThread-3
> {code}
> The final state of the app is similar to KAFKA-5779, but the exception and its location
is in different place.
> The exception shall be handled in the way that either application tries to continue working
or shall completely quit if the error is not recoverable.
> Current situation when application is zombie is not good.



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