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Posted to common-issues@hadoop.apache.org by "Colin Patrick McCabe (JIRA)" <ji...@apache.org> on 2014/05/11 00:13:16 UTC
[jira] [Updated] (HADOOP-10587) Use a thread-local cache in
TokenIdentifier#getBytes to avoid creating many DataOutputBuffer objects
[ https://issues.apache.org/jira/browse/HADOOP-10587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Colin Patrick McCabe updated HADOOP-10587:
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Attachment: HADOOP-10587.001.patch
> 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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