[jira] [Commented] (KAFKA-5212) Consumer ListOffsets request can starve group heartbeats

["Evgeny Veretennikov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-5212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16068191#comment-16068191 ] 

Evgeny Veretennikov commented on KAFKA-5212:
--------------------------------------------

[~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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