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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13426) More efficiently build IPC responses
Date Wed, 03 Aug 2016 14:35:20 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kihwal Lee updated HADOOP-13426:
--------------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 3.0.0-alpha2
                   2.9.0
           Status: Resolved  (was: Patch Available)

I've committed this to trunk and branch-2. Thanks for the awesome patch, [~daryn].

> More efficiently build IPC responses
> ------------------------------------
>
>                 Key: HADOOP-13426
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13426
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 2.9.0, 3.0.0-alpha2
>
>         Attachments: HADOOP-13426.1.patch, HADOOP-13426.patch
>
>
> The call response buffer is allowed to dynamically grow until a max size is reached.
 Often times the full size of the response can be known in advance which avoids copies.  This
is very advantageous for large responses.
> Automatic framing of the response buffer will also prevent unnecessary allocations and
copies when the size is/isn't known.



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