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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7379) Add ability to include Protobufs in ObjectWritable
Date Sat, 11 Jun 2011 09:24:03 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13047872#comment-13047872
] 

Arun C Murthy commented on HADOOP-7379:
---------------------------------------

Woah, tlipcon, slow down man! :)

In all seriousness... great stuff.

What will it take to get ipc.Server to understand PB rather than Writable?

> Add ability to include Protobufs in ObjectWritable
> --------------------------------------------------
>
>                 Key: HADOOP-7379
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7379
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io, ipc
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.23.0
>
>         Attachments: hadoop-7379.txt, hadoop-7379.txt
>
>
> Per HDFS-2060, it would make it easier to piecemeal switch to protocol buffer based data
structures in the wire protocol if we could intermix the two. The IPC framework currently
provides the concept of "engines" for RPC, but that doesn't easily allow mixed types within
the same framework for ease of transition.
> I'd like to add the cases to ObjectWritable to be handle subclasses of {{Message}}, the
superclass of codegenned protobufs.

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