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https://issues.apache.org/jira/browse/KAFKA-2175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539293#comment-14539293
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Gwen Shapira commented on KAFKA-2175:
-------------------------------------
Non-binding +1.
Probably the most useful 2-line change that can be done in Kafka.
It should get backported to 0.8.2 if we plan another release off that branch.
> Reduce server log verbosity at info level
> -----------------------------------------
>
> Key: KAFKA-2175
> URL: https://issues.apache.org/jira/browse/KAFKA-2175
> Project: Kafka
> Issue Type: Improvement
> Components: controller, zkclient
> Affects Versions: 0.8.3
> Reporter: Todd Palino
> Assignee: Todd Palino
> Priority: Minor
> Labels: newbie
> Attachments: KAFKA-2175.patch
>
>
> Currently, the broker logs two messages at INFO level that should be at a
> lower level. This serves only to fill up log files on disk, and can cause
> performance issues due to synchronous logging as well.
> The first is the "Closing socket connection" message when there is no error.
> This should be reduced to debug level. The second is the message that ZkUtil
> writes when updating the partition reassignment JSON. This message contains
> the entire JSON blob and should never be written at info level. In addition,
> there is already a message in the controller log stating that the ZK node has
> been updated.
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