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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