[jira] [Closed] (KAFKA-892) Change request log to include request completion not handling

["Neha Narkhede (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neha Narkhede closed KAFKA-892.
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> Change request log to include request completion not handling
> -------------------------------------------------------------
>
>                 Key: KAFKA-892
>                 URL: https://issues.apache.org/jira/browse/KAFKA-892
>             Project: Kafka
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 0.8
>            Reporter: Neha Narkhede
>            Assignee: Neha Narkhede
>            Priority: Critical
>              Labels: kafka-0.8
>         Attachments: kafka-892.patch
>
>
> While troubleshooting a lot of 0.8 issues, what I've seen is that often times than not, I've wanted the request processing latency breakdown to be part of the request log. There are of course mbeans to expose this information, but when you are trying to troubleshoot the root cause of few slow requests, this is immensely helpful. Currently, we only include request reception in the request log. We could include both but that would double the size of the request log. So I'm proposing adding just the request completion information in the request log. This will not just tell us which request came into the server, but will also give us a breakdown of where it spent most of its processing time.

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