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

["Arun C Murthy (Assigned) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy reassigned MAPREDUCE-3764:
----------------------------------------

    Assignee: Arun C Murthy
    
> AllocatedGB etc metrics incorrect if min-allocation-mb isn't a multiple of 1GB
> ------------------------------------------------------------------------------
>
>                 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
>            Assignee: Arun C Murthy
>            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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