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https://issues.apache.org/jira/browse/MAPREDUCE-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13028055#comment-13028055
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Ravi Gummadi commented on MAPREDUCE-2469:
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I am planning to add a new TaskCounter COMMITTED_HEAP_BYTES that represents the
total committed heap size of the task at any given time. This is also updated
everytime other resource counters are updated.
> 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: Ravi Gummadi
> Labels: mapreduce
>
> 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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