[jira] [Created] (MAPREDUCE-3764) AllocatedGB etc metrics incorrect if min-allocation-mb isn't a multiple of 1GB

["Siddharth Seth (Created) (JIRA)" <ji...@apache.org>]

AllocatedGB etc metrics incorrect if min-allocation-mb isn't a multiple of 1GB
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                 Key: MAPREDUCE-3764
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3764
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Siddharth Seth
            Priority: Critical


MutableGaugeInt incremented as {{allocatedGB.incr(res.getMemory() / GB * containers);}}

Setting yarn.scheduler.capacity.minimum-allocation-mb to 1536 - each increment is counted as 1GB.
Trying to analyze the metrics - looks like the cluster is never over 67-68% utilized, depending on high ram requests.

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