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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2581) Counters and other useful stats should be logged into Job History log
Date Fri, 11 Jan 2008 22:40:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12558154#action_12558154
] 

Owen O'Malley commented on HADOOP-2581:
---------------------------------------

It is already in trunk and therefore will be in 0.16. It can not be included in 0.15.3, because
that branch is closed except for bug fixes.

> Counters and other useful stats should be logged into Job History log
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-2581
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2581
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Runping Qi
>
> The following stats are useful and  available to JT but not logged job history log:
> 1. The counters of each job
> 2. The counters of each mapper/reducer attempt
> 3. The info about the input splits (filename, split size, on which nodes)
> 3. The input split for each mapper attempt
> Those data is useful and important for mining to find out performance related problems.

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