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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-10587) Use a thread-local cache in TokenIdentifier#getBytes to avoid creating many DataOutputBuffer objects
Date Sat, 10 May 2014 22:13:16 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Colin Patrick McCabe updated HADOOP-10587:
------------------------------------------

    Status: Patch Available  (was: Open)

> Use a thread-local cache in TokenIdentifier#getBytes to avoid creating many DataOutputBuffer
objects
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-10587
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10587
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.4.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HADOOP-10587.001.patch
>
>
> We can use a thread-local cache in TokenIdentifier#getBytes to avoid creating many DataOutputBuffer
objects.  This will reduce our memory usage (for example, when loading edit logs), and help
prevent OOMs.



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