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