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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-386) Removing 'System.arraycopy(...)' call from all message constructors to reduce memory/garbage collection
Date Thu, 12 May 2011 20:05:47 GMT

    [ https://issues.apache.org/jira/browse/HAMA-386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13032634#comment-13032634
] 

Hudson commented on HAMA-386:
-----------------------------

+1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12478928/patch.txt
against trunk revision 1100148.

    @author +1.  The patch does not contain any @author tags.

    tests included +1.  The patch appears to include 6 new or modified tests.

    core tests +1.  The patch passed core unit tests.

Changes : http://builds.apache.org/hudson/job/Hama-Patch/336/changes/
Console output: http://builds.apache.org/hudson/job/Hama-Patch/336/console

This message is automatically generated.

> Removing 'System.arraycopy(...)' call from all message constructors to reduce memory/garbage
collection
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HAMA-386
>                 URL: https://issues.apache.org/jira/browse/HAMA-386
>             Project: Hama
>          Issue Type: Improvement
>    Affects Versions: 0.2.0
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>             Fix For: 0.3.0
>
>         Attachments: patch.txt
>
>
> When the data size is bigger than 50% of available memory, it will throws an OOM exception
:/
> {code}
>     int dataSize = (int) (Runtime.getRuntime().maxMemory() * 0.60);
>     ByteMessage msg = new ByteMessage(Bytes.toBytes("tag"), new byte[dataSize]);
> {code}

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