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From "Aravindan Vijayan (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMBARI-13643) Warn if Xmn size is oversubscribed in AMS HBase master and region server config
Date Fri, 30 Oct 2015 20:23:27 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aravindan Vijayan resolved AMBARI-13643.
----------------------------------------
    Resolution: Fixed

> Warn if Xmn size is oversubscribed in AMS HBase master and region server config
> -------------------------------------------------------------------------------
>
>                 Key: AMBARI-13643
>                 URL: https://issues.apache.org/jira/browse/AMBARI-13643
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.1.2
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Critical
>
> Problem/Bug
> While setting the AMS configuration, the user can set any unbounded value for the Xmn
settings. This might lead to undesirable outcomes from the JVM.
> Fix
> Provide validation of Xmn settings based on AMS mode.
> If AMS is operating in embedded mode
>   regionserver_xmn ---- 12-20% of ( hbase_master_heapsize + hbase_regionserver_heapsize)
> If AMS is operating in distributed distributed mode
>   hbase_master_xmn ---- 12 - 20% of hbase_master_heapsize
>   regionserver_xmn ---- 12 - 20% of hbase_regionserver_heapsize



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