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Posted to common-dev@hadoop.apache.org by "Devaraj Das (JIRA)" <ji...@apache.org> on 2007/06/01 21:25:15 UTC

[jira] Updated: (HADOOP-1446) Metrics from the TaskTracker are updated only when map/reduce tasks start/end/fail

     [ https://issues.apache.org/jira/browse/HADOOP-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Devaraj Das updated HADOOP-1446:
--------------------------------

    Attachment: 1446.patch

Attached is a patch that makes TaskTrackerMetrics implement the Updater interface. Also, a new metrics to report the number of taskSlots has been added.

> 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.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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