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From "David Bowen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1446) Metrics from the TaskTracker are updated only when map/reduce tasks start/end/fail
Date Tue, 05 Jun 2007 15:58:26 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12501600
] 

David Bowen commented on HADOOP-1446:
-------------------------------------

+1

Code reviewed.  Looks good.


> Metrics from the TaskTracker are updated only when map/reduce tasks start/end/fail
> ----------------------------------------------------------------------------------
>
>                 Key: HADOOP-1446
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1446
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.12.3
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>             Fix For: 0.14.0
>
>         Attachments: 1446.1.patch, 1446.patch, 1446.patch
>
>
> Metrics reporting from the TaskTracker for the maps_running and reduces_running metrics
are done only when a task is starting up or finishing up. This is wrong and the metrics reporting
should be done periodically during the life of the TaskTracker just as it is done for the
JobTracker case.

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