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https://issues.apache.org/jira/browse/KAFKA-5212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16068191#comment-16068191
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Evgeny Veretennikov commented on KAFKA-5212:
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[~hachikuji], I'd like to work on this ticket, but not sure, how exactly does
{{Fetcher.sendListOffsetRequest()}} block {{HeartbeatThread}}... :( Could you
explain it a bit more, please?
> Consumer ListOffsets request can starve group heartbeats
> --------------------------------------------------------
>
> Key: KAFKA-5212
> URL: https://issues.apache.org/jira/browse/KAFKA-5212
> Project: Kafka
> Issue Type: Bug
> Components: consumer
> Reporter: Jason Gustafson
> Fix For: 0.11.1.0
>
>
> The consumer is not able to send heartbeats while it is awaiting a
> ListOffsets response. Typically this is not a problem because ListOffsets
> requests are handled quickly, but in the worst case if the request takes
> longer than the session timeout, the consumer will fall out of the group.
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