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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1492) DataNode version mismatch during handshake() causes NullPointerException.
Date Thu, 14 Jun 2007 01:03:25 GMT
DataNode version mismatch during handshake() causes NullPointerException.
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                 Key: HADOOP-1492
                 URL: https://issues.apache.org/jira/browse/HADOOP-1492
             Project: Hadoop
          Issue Type: Bug
    Affects Versions: 0.13.0
            Reporter: Konstantin Shvachko
            Assignee: Konstantin Shvachko
             Fix For: 0.14.0


If during handshake() DataNode encounters version mismatch with the name-node it sends errorReport()
to the name-node with dnRegistration = null. This causes a NullPointerException on the name-node.


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