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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5514) Add waiting/failed tasks to JobTracker metrics
Date Wed, 18 Mar 2009 02:21:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12682882#action_12682882
] 

Arun C Murthy commented on HADOOP-5514:
---------------------------------------

+1.

Eventually we should replace synchronized methods in JobTrackerMetricsInst with AtomicIntegers
as applicable... I'd do it as a separate patch.

> Add waiting/failed tasks to JobTracker metrics
> ----------------------------------------------
>
>                 Key: HADOOP-5514
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5514
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred, metrics
>            Reporter: Chris Douglas
>            Assignee: Chris Douglas
>         Attachments: 5514-0.patch
>
>
> In addition to launched and completed tasks, it would be helpful if the number of waiting
tasks and failed tasks were accumulated as metrics.

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