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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-14020) Unsafe based optimized write in ByteBufferOutputStream
Date Mon, 06 Jul 2015 05:16:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14020?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anoop Sam John resolved HBASE-14020.
------------------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed

> Unsafe based optimized write in ByteBufferOutputStream
> ------------------------------------------------------
>
>                 Key: HBASE-14020
>                 URL: https://issues.apache.org/jira/browse/HBASE-14020
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Scanners
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 2.0.0
>
>         Attachments: HBASE-14020.patch, HBASE-14020_v2.patch, HBASE-14020_v3.patch, benchmark.zip
>
>
> We use this class to build the cellblock at RPC layer. The write operation is doing puts
to java ByteBuffer which is having lot of overhead. Instead we can do Unsafe based copy to
buffer operation.



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