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