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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8805) Move protocol buffer implementation of GetUserMappingProtocol from HDFS to Common
Date Wed, 19 Sep 2012 18:36:08 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13458936#comment-13458936
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Vinod Kumar Vavilapalli commented on HADOOP-8805:
-------------------------------------------------

bq. But the protocol itself moved from package org.apache.hadoop.hdfs.protocolPB to org.apache.hadoop.tools.
I believe, when we send a call, we still include the full class name of the protocol which
contains it.
Agree that the package change will break the clients, but do we want to support compatibility
already on the alpha releases or start promising wire-compat beginning with the first stable
release?
                
> Move protocol buffer implementation of GetUserMappingProtocol from HDFS to Common
> ---------------------------------------------------------------------------------
>
>                 Key: HADOOP-8805
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8805
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Bo Wang
>            Assignee: Bo Wang
>             Fix For: 2.0.3-alpha
>
>         Attachments: HADOOP-8805.patch, HADOOP-8805-v2.patch, HADOOP-8805-v3.patch
>
>
> org.apache.hadoop.tools.GetUserMappingProtocol is used in both HDFS and YARN. We should
move the protocol buffer implementation from HDFS to Common so that it can also be used by
YARN.

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