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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