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From "Brandon Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-6060) NameNode should not check DataNode layout version
Date Thu, 06 Mar 2014 00:02:45 GMT
Brandon Li created HDFS-6060:
--------------------------------

             Summary: 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
            Reporter: Brandon Li
            Assignee: Brandon Li


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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