[jira] [Created] (MAPREDUCE-3681) capacity scheduler LeafQueues calculate used capacity wrong

["Thomas Graves (Created) (JIRA)" <ji...@apache.org>]

capacity scheduler LeafQueues calculate used capacity wrong
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                 Key: MAPREDUCE-3681
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3681
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Thomas Graves
            Priority: Blocker


In the Capacity scheduler if you configure the queues to be hierarchical where you have root -> parent queue -> leaf queue, the leaf queue doesn't calculate the used capacity properly. It seems to be using the entire cluster memory rather then its parents memory capacity. 

In updateResource in LeafQueue:
    setUsedCapacity(
        usedResources.getMemory() / (clusterResource.getMemory() * capacity));

I think the clusterResource.getMemory() should be something like getParentsMemory().

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