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Posted to jira@kafka.apache.org by "Chris Egerton (Jira)" <ji...@apache.org> on 2021/03/16 03:28:00 UTC
[jira] [Updated] (KAFKA-12474) Worker can die if unable to write
new session key
[ https://issues.apache.org/jira/browse/KAFKA-12474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Egerton updated KAFKA-12474:
----------------------------------
Issue Type: Bug (was: Improvement)
> Worker can die if unable to write new session key
> -------------------------------------------------
>
> Key: KAFKA-12474
> URL: https://issues.apache.org/jira/browse/KAFKA-12474
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 2.4.2, 2.5.2, 2.8.0, 2.7.1, 2.6.2
> Reporter: Chris Egerton
> Assignee: Chris Egerton
> Priority: Major
>
> If a distributed worker is unable to write (and then read back) a new session key to the config topic, an uncaught exception will be thrown from its herder's tick thread, killing the worker.
> See [https://github.com/apache/kafka/blob/8da65936d7fc53d24c665c0d01893d25a430933b/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/distributed/DistributedHerder.java#L366-L369]
> One way we can handle this case by forcing a read to the end of the config topic whenever an attempt to write a new session key to the config topic fails.
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