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https://issues.apache.org/jira/browse/KAFKA-9562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17044693#comment-17044693
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Boyang Chen commented on KAFKA-9562:
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We are soaking the 2.5 with/without EOS for another 2 weeks to make sure the
stream side is in good shape.
> Streams not making progress under heavy failures with EOS enabled on 2.5
> branch
> -------------------------------------------------------------------------------
>
> Key: KAFKA-9562
> URL: https://issues.apache.org/jira/browse/KAFKA-9562
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.5.0
> Reporter: John Roesler
> Assignee: Boyang Chen
> Priority: Blocker
> Fix For: 2.5.0
>
>
> During soak testing in preparation for the 2.5.0 release, we have discovered
> a case in which Streams appears to stop making progress. Specifically, this
> is a failure-resilience test in which we inject network faults separating the
> instances from the brokers roughly every twenty minutes.
> On 2.4, Streams would obviously spend a lot of time rebalancing under this
> scenario, but would still make progress. However, on the current 2.5 branch,
> Streams effectively stops making progress except rarely.
> This appears to be a severe regression, so I'm filing this ticket as a 2.5.0
> release blocker.
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