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From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HAMA-386) Removing 'System.arraycopy(...)' call from all message constructors to reduce memory/garbage collection
Date Thu, 12 May 2011 01:41:47 GMT

     [ https://issues.apache.org/jira/browse/HAMA-386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Edward J. Yoon updated HAMA-386:
--------------------------------

        Fix Version/s: 0.3.0
             Assignee: Edward J. Yoon
    Affects Version/s: 0.2.0
               Status: Patch Available  (was: Open)

submitting

> 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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