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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7379) Add ability to include Protobufs in ObjectWritable
Date Wed, 15 Jun 2011 22:22:47 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HADOOP-7379:
--------------------------------

      Resolution: Fixed
    Release Note: Protocol buffer-generated types may now be used as arguments or return values
for Hadoop RPC.
    Hadoop Flags: [Reviewed]
          Status: Resolved  (was: Patch Available)

Committed to trunk. Thanks for reviewing, Luke!

I haven't marked this as an incompatible change, since it simply adds a new feature to ObjectWritable
without changing encoding of any existing features.

> 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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