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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5945) Reduce buffer copies in IPC server response path
Date Sat, 23 Nov 2013 20:11:35 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-5945:
-------------------------

       Resolution: Fixed
    Fix Version/s: 0.98.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Committed gathering patch.  Further cleanup to be done in other issues (e.g. the issue linked
to this one).

> Reduce buffer copies in IPC server response path
> ------------------------------------------------
>
>                 Key: HBASE-5945
>                 URL: https://issues.apache.org/jira/browse/HBASE-5945
>             Project: HBase
>          Issue Type: Improvement
>          Components: IPC/RPC
>    Affects Versions: 0.95.2
>            Reporter: Todd Lipcon
>            Assignee: stack
>             Fix For: 0.98.0, 0.96.1
>
>         Attachments: 5945-in-progress.2.1.patch, 5945-in-progress.2.patch, 5945-in-progress.patch,
5945v2.txt, 5945v4.txt, 5945v4.txt, 5945v5.txt, buffer-copies.txt, even-fewer-copies.txt,
hbase-5495.txt, with_patch.png, without_patch.png
>
>
> The new PB code is sloppy with buffers and makes several needless copies. This increases
GC time a lot. A few simple changes can cut this back down.



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