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Posted to mapreduce-dev@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2011/05/03 06:36:03 UTC

[jira] [Created] (MAPREDUCE-2469) Task counters should also report the total heap usage of the task

Task counters should also report the total heap usage of the task
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                 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


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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