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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5083) Update the HDFS compatibility version range
Date Fri, 09 Aug 2013 18:16:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13735095#comment-13735095
] 

Suresh Srinivas commented on HDFS-5083:
---------------------------------------

+1 for the change.
                
> Update the HDFS compatibility version range
> -------------------------------------------
>
>                 Key: HDFS-5083
>                 URL: https://issues.apache.org/jira/browse/HDFS-5083
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.1.0-beta, 2.3.0
>            Reporter: Kihwal Lee
>            Priority: Blocker
>         Attachments: HDFS-5083.branch-2.x.patch
>
>
> Since we have made incompatible changes including RPCv9, the following needs to be updated.
For branch-2 and branch-2.*,  I think it needs to be set to 2.1.0.
> DFS_NAMENODE_MIN_SUPPORTED_DATANODE_VERSION_DEFAULT
> DFS_DATANODE_MIN_SUPPORTED_NAMENODE_VERSION_DEFAULT
> The rpc change will make dn registration fail, so it won't get to the actual version
check, but this still needs to be set correctly, since we are aiming 2.1.0 to be api/protocol
stable.

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