[HDFS-676] NPE in FSDataset.updateReplicaUnderRecovery(..)

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.21.0
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Konstantin Shvachko
• Reporter: Tsz-wo Sze
• Created: 05/Oct/09 20:27
• Updated: 24/Aug/10 20:49
• Resolved: 09/Oct/09 23:17

Description

java.io.IOException: java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.datanode.FSDataset.updateReplicaUnderRecovery(FSDataset.java:2089)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.updateReplicaUnderRecovery(DataNode.java:1598)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:516)
	...

The problem can be reproduced by calling updateReplicaUnderRecovery(blockid) with blockid not in the volumeMap.

Issue Links

• is related to: HDFS-627 Support replica update in datanode
• is related to: HDFS-658 Block recovery for primary data-node