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From "Ismael Juma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-1804) Kafka network thread lacks top exception handler
Date Mon, 12 Oct 2015 17:09:06 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14953391#comment-14953391
] 

Ismael Juma commented on KAFKA-1804:
------------------------------------

trunk will be released as 0.9.0.0, see http://search-hadoop.com/m/uyzND1LUUpN1qRojN1 for the
discussion thread where the decision was made to name the next release 0.9.0 instead of 0.8.3.

> Kafka network thread lacks top exception handler
> ------------------------------------------------
>
>                 Key: KAFKA-1804
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1804
>             Project: Kafka
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 0.8.2.0
>            Reporter: Oleg Golovin
>            Priority: Critical
>
> We have faced the problem that some kafka network threads may fail, so that jstack attached
to Kafka process showed fewer threads than we had defined in our Kafka configuration. This
leads to API requests processed by this thread getting stuck unresponed.
> There were no error messages in the log regarding thread failure.
> We have examined Kafka code to find out there is no top try-catch block in the network
thread code, which could at least log possible errors.
> Could you add top-level try-catch block for the network thread, which should recover
network thread in case of exception?



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