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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1457) Counters for monitoring task assignments
Date Mon, 11 Jun 2007 18:07:26 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12503514
] 

Hadoop QA commented on HADOOP-1457:
-----------------------------------

+1

http://issues.apache.org/jira/secure/attachment/12358842/HADOOP-1457_1_20070604.patch applied
and successfully tested against trunk revision r546192.

Test results:   http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/261/testReport/
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/261/console

> Counters for monitoring task assignments
> ----------------------------------------
>
>                 Key: HADOOP-1457
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1457
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.12.3
>            Reporter: Devaraj Das
>            Assignee: Arun C Murthy
>            Priority: Minor
>             Fix For: 0.14.0
>
>         Attachments: HADOOP-1457_1_20070604.patch
>
>
> For performance reasons, it would be nice to monitor the task assignments to nodes. This
is especially true for maps where we want to maximize data-locality-based assignments. Counters
could be introduced for that.

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