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Posted to mapreduce-dev@hadoop.apache.org by "Robert Joseph Evans (JIRA)" <ji...@apache.org> on 2011/09/20 19:06:09 UTC

[jira] [Created] (MAPREDUCE-3050) YarnScheduler needs to expose Resource Usage Information

YarnScheduler needs to expose Resource Usage Information
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                 Key: MAPREDUCE-3050
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3050
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: resourcemanager
    Affects Versions: 0.23.0, 0.24.0
            Reporter: Robert Joseph Evans
            Assignee: Robert Joseph Evans
            Priority: Blocker
             Fix For: 0.23.0, 0.24.0


Before the recent refactor The nodes had information in them about how much resources they were using.  This information is not hidden inside SchedulerNode.  Similarly resource usage information about an application, or in aggregate is only available through the Scheduler and there is not interface to pull it out.

We need to expose APIs to get Resource and Container information from the scheduler, in aggregate across the entire cluster, per application, per node, and ideally also per queue if applicable (although there are no JIRAs I am aware of that need this right now).

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