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From "Azwaw OUSADOU (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-6484) HBase RegionServer -Xmn must be configurable
Date Wed, 23 Jul 2014 16:59:38 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-6484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14071955#comment-14071955
] 

Azwaw OUSADOU commented on AMBARI-6484:
---------------------------------------

Please can someone review my patch ?

> HBase RegionServer -Xmn must be configurable
> --------------------------------------------
>
>                 Key: AMBARI-6484
>                 URL: https://issues.apache.org/jira/browse/AMBARI-6484
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: 1.7.0
>            Reporter: Azwaw OUSADOU
>            Priority: Critical
>              Labels: features, patch
>             Fix For: 1.7.0
>
>         Attachments: AMBARI-6484.diff, XMN_CONFIGURABLE.diff
>
>
> -Xmn parameter for HBase RegionServer is calculated with hardcoded value.
> This patch allows you to configure values used to calculate this parameter (the maximum
value for -Xmn and the ratio between -Xmn and -Xmx).
> Without this fix HBase can be crash because of OutOfMemory when you do a YCSB test for
example.



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