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From "Mikhail Bautin (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5141) Memory leak in MonitoredRPCHandlerImpl
Date Sat, 07 Jan 2012 22:26:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182132#comment-13182132
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Mikhail Bautin commented on HBASE-5141:
---------------------------------------

I get the error shown at http://pastebin.com/AdAp0M35 when trying to build the following commit:


Author: stack <stack@13f79535-47bb-0310-9956-ffa450edef68>
Date:   Sat Jan 7 14:16:11 2012

    HBASE-5141 Memory leak in MonitoredRPCHandlerImpl
    
    git-svn-id: http://svn.apache.org/repos/asf/hbase/trunk@1228740

                
> Memory leak in MonitoredRPCHandlerImpl
> --------------------------------------
>
>                 Key: HBASE-5141
>                 URL: https://issues.apache.org/jira/browse/HBASE-5141
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.0
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.92.0, 0.94.0
>
>         Attachments: HBASE-5141-v2.patch, HBASE-5141.patch, Screen Shot 2012-01-06 at
3.03.09 PM.png
>
>
> I got a pretty reliable way of OOME'ing my region servers. Using a big payload (64MB
in my case), a default heap and default number of handlers, it's not too long that all the
MonitoredRPCHandlerImpl hold on a 64MB reference and once a compaction kicks in it kills everything.
> The issue is that even after the RPC call is done, the packet still lives in MonitoredRPCHandlerImpl.
> Will attach a screen shot of jprofiler's analysis in a moment.
> This is a blocker for 0.92.0, anyone using a high number of handlers and bigish values
will kill themselves.

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