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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5514) Add waiting/failed tasks to JobTracker metrics
Date Tue, 17 Mar 2009 07:10:50 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas updated HADOOP-5514:
----------------------------------

    Attachment: 5514-0.patch

* Rather than passing JobTrackerInstrumentation through call chain, add an accessor to JT
and use through ref kept by JobInProgress
* Fix HADOOP-5499 by moving launchMap/launchReduce accounting from JobTracker::createTaskEntry
to JobInProgress::addRunningTaskToTIP
* Add waiting task accounting to JobInProgress::initTasks, JobInProgress::garbageCollect,
and related metrics
* Add failed task accounting to JobInProgress::failedTask

Thanks to Deveraj for guidance on the JobTracker

> 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
>         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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