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https://issues.apache.org/jira/browse/HADOOP-5846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12709761#action_12709761
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Arun C Murthy commented on HADOOP-5846:
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Is the proposal to add another 'log' statement in JobHistory with the lock on
the JobTracker? If so, that is a slippery slope...
> Log job history events to a common dump file
> --------------------------------------------
>
> Key: HADOOP-5846
> URL: https://issues.apache.org/jira/browse/HADOOP-5846
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Reporter: Amar Kamat
> Assignee: Amar Kamat
>
> As of today all the jobhistory events are logged to separate files. It would
> be nice to also dump all this info into a common file so that external tools
> (e.g Chukwa) can harvest history info. Job configuration should also be
> dumped. Whether to use a same log file for history dumps and configuration
> dumps should be configurable (by default everything goes to one file).
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