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Posted to mapreduce-issues@hadoop.apache.org by "Mahadev konar (JIRA)" <ji...@apache.org> on 2011/07/12 00:46:59 UTC

[jira] [Commented] (MAPREDUCE-2659) MR-279: ShuffleHandler should use Protocol Buffers for ServiceData

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13063585#comment-13063585 ] 

Mahadev konar commented on MAPREDUCE-2659:
------------------------------------------

Robert, 
 I think we can skip this for 0.23.0. This would be a nice to have but not really a must have for 0.23. 

> MR-279: ShuffleHandler should use Protocol Buffers for ServiceData
> ------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2659
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2659
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>             Fix For: 0.23.0
>
>
> Auxiliary Services (Specifically ShuffleHandler) should use ProtocolBuffers for storing/retrieving data in the ByteBuffer.  Right now there are TODOs to have the format include a version number, but if we want true wire compatibility we should use the same system we are using elsewhere in the code for messages, not something invented as we go along.

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