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https://issues.apache.org/jira/browse/KAFKA-649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669433#comment-13669433
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Neha Narkhede commented on KAFKA-649:
-------------------------------------
Actually, there is another error message that needs to be fixed in KafkaApis -
In handleTopicMetadataRequest() -
error("Error while fetching metadata for partition
%s".format(topicAndPartition), e)
Here, we should special case LeaderNotAvailable and ReplicaNotAvailable. And
only print error if it is anything other than that. This will reduce the log
pollution due to metadata requests during leader failover
> Cleanup log4j logging
> ---------------------
>
> Key: KAFKA-649
> URL: https://issues.apache.org/jira/browse/KAFKA-649
> Project: Kafka
> Issue Type: Improvement
> Affects Versions: 0.8
> Reporter: Jay Kreps
> Assignee: Jun Rao
> Priority: Blocker
> Attachments: kafka-649_extra.patch, kafka-649.patch
>
>
> Review the logs and do the following:
> 1. Fix confusing or duplicative messages
> 2. Assess that messages are at the right level (TRACE/DEBUG/INFO/WARN/ERROR)
> It would also be nice to add a log4j logger for the request logging (i.e. the
> access log) and another for the controller state change log, since these
> really have their own use cases.
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