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https://issues.apache.org/jira/browse/MAPREDUCE-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amar Kamat updated MAPREDUCE-2469:
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Attachment: mapreduce-2469-v1.4.patch
Attaching a new patch incorporating Ravi's offline comments. test-patch passed.
The only change is in TestJobCounters and that passed on my box.
> Task counters should also report the total heap usage of the task
> -----------------------------------------------------------------
>
> Key: MAPREDUCE-2469
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2469
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: task
> Affects Versions: 0.23.0
> Reporter: Amar Kamat
> Assignee: Amar Kamat
> Labels: mapreduce
> Attachments: 2469.v0.1.patch, mapreduce-2469-v1.1.patch,
> mapreduce-2469-v1.2.patch, mapreduce-2469-v1.3.patch,
> mapreduce-2469-v1.4.patch
>
>
> Currently, the task counters report VSS and RSS usage of the task. The task
> counter should also report the total heap usage of the task also. The task
> might be configured with a max heap size of M but the task's total heap usage
> might only be H, where H < M. In such a case, knowing only M doesn't provide
> a complete picture of the task's memory usage.
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