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https://issues.apache.org/jira/browse/KAFKA-2397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660269#comment-14660269
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Jason Gustafson commented on KAFKA-2397:
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[~jkreps] Yeah, TCP is pretty resilient to network weirdness. I was mostly
thinking client-side timeouts which may end up exposed in configuration. The
only thing the client can do if a request times out is disconnect and try
again. Perhaps we'd want to keep any timeouts with the coordinator out of
configuration if we tried this approach. I was also wondering if there were
some tunneling situations which could make the connection unstable.
> leave group request
> -------------------
>
> Key: KAFKA-2397
> URL: https://issues.apache.org/jira/browse/KAFKA-2397
> Project: Kafka
> Issue Type: Sub-task
> Components: consumer
> Reporter: Onur Karaman
> Assignee: Onur Karaman
> Priority: Minor
> Fix For: 0.8.3
>
>
> Let's say every consumer in a group has session timeout s. Currently, if a
> consumer leaves the group, the worst case time to stabilize the group is 2s
> (s to detect the consumer failure + s for the rebalance window). If a
> consumer instead can declare they are leaving the group, the worst case time
> to stabilize the group would just be the s associated with the rebalance
> window.
> This is a low priority optimization!
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