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https://issues.apache.org/jira/browse/KAFKA-756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13576813#comment-13576813
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Jay Kreps commented on KAFKA-756:
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+1
It would be good to understand how you tested this. Can we reproduce the
blocking behavior w/o this patch (i.e. add a println and send some stuff with a
larger fetch size than socket size). Can we do the same after the patch and
validate that it is behaving as we expect...
> Processor thread blocks due to infinite loop during fetch response send
> -----------------------------------------------------------------------
>
> Key: KAFKA-756
> URL: https://issues.apache.org/jira/browse/KAFKA-756
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8
> Reporter: Sriram Subramanian
> Assignee: Sriram Subramanian
> Priority: Blocker
> Labels: bugs, p1
> Attachments: KAFKA-756.patch, Kafka-756-v2.patch
>
>
> This looks to be because of an infinite loop during fetch response send. This
> happens because we try to send bytes from a log which has been truncated
> during send. The total size to send is calculated at the beginning of the
> iteration and it does not take into account the change in log size during
> send. When send happens, it uses the size calculated at the start and loops
> continuously hoping to send more data.
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