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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1446) Metrics from the TaskTracker are updated only when map/reduce tasks start/end/fail
Date Fri, 01 Jun 2007 20:07:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12500830
] 

Hadoop QA commented on HADOOP-1446:
-----------------------------------

+0, new Findbugs warnings

http://issues.apache.org/jira/secure/attachment/12358730/1446.patch
applied and successfully tested against trunk revision r543222,
but there appear to be new Findbugs warnings introduced by this patch.

New Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/228/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Test results:   http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/228/testReport/
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/228/console

> 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.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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