[HADOOP-1492] DataNode version mismatch during handshake() causes NullPointerException.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0
• Fix Version/s: 0.14.0
• Assignee: Konstantin Shvachko
• Reporter: Konstantin Shvachko
• Created: 14/Jun/07 01:01
• Updated: 20/Aug/07 18:12
• Resolved: 18/Jun/07 22:05

Description

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.