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https://issues.apache.org/jira/browse/HADOOP-5846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12709770#action_12709770
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Devaraj Das commented on HADOOP-5846:
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The most common history configuration is to write the files in the local disk
and this jira is not changing that model.. So it will be yet another file in
the local disk. Once we have fixes that will not lock the JT on history writes,
creating such files on the hdfs will be not that big a deal (and long term that
is the goal).
> 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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