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https://issues.apache.org/jira/browse/KAFKA-3318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15187478#comment-15187478
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ASF GitHub Bot commented on KAFKA-3318:
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GitHub user hachikuji opened a pull request:
https://github.com/apache/kafka/pull/1036
KAFKA-3318: clean up consumer logging and error messages
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/hachikuji/kafka KAFKA-3318
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/1036.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1036
----
commit 274378395e48bca11350c1df3a38137810ba0732
Author: Jason Gustafson <ja...@confluent.io>
Date: 2016-03-09T01:42:11Z
KAFKA-3318: clean up consumer logging and error messages
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> Improve consumer rebalance error messaging
> ------------------------------------------
>
> Key: KAFKA-3318
> URL: https://issues.apache.org/jira/browse/KAFKA-3318
> Project: Kafka
> Issue Type: Improvement
> Reporter: Jason Gustafson
> Assignee: Jason Gustafson
>
> A common problem with the new consumer is to have message processing take
> longer than the session timeout, causing an unexpected rebalance.
> Unfortunately, when this happens, the error messages are often cryptic (e.g.
> something about illegal generation) and contain no clear advice on what to do
> (e.g. increase session timeout). We should do a pass on error messages to
> ensure that users receive clear guidance on the problem and possible
> solutions.
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