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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6060) NameNode should not check DataNode layout version
Date Thu, 06 Mar 2014 19:44:48 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13922956#comment-13922956
] 

Hudson commented on HDFS-6060:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #5274 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/5274/])
HDFS-6060. NameNode should not check DataNode layout version. Contributed by Brandon Li (brandonli:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1575021)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java


> NameNode should not check DataNode layout version
> -------------------------------------------------
>
>                 Key: HDFS-6060
>                 URL: https://issues.apache.org/jira/browse/HDFS-6060
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: 3.0.0
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>         Attachments: HDFS-6060.001.patch, HDFS-6060.002.patch
>
>
> In current code, NameNode allows DataNode layout version to be different only when the
NameNode is in rolling upgrade mode. DataNode can't register with NameNode when only DataNode
is to be upgraded with a layout version different with that on NameNode.
> NameNode should not check DataNode layout version in any cases. 



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