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https://issues.apache.org/jira/browse/HADOOP-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Devaraj Das updated HADOOP-1446:
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Status: Patch Available (was: Open)
> 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: 1446.1.patch, 1446.patch, 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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