[HADOOP-3108] NPE in FSDirectory.unprotectedSetPermission

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.16.1
• Fix Version/s: 0.16.2
• Assignee: Konstantin Shvachko
• Reporter: Koji Noguchi
• Created: 27/Mar/08 18:26
• Updated: 08/Jul/09 16:43
• Resolved: 28/Mar/08 20:55

Description

Not sure if this is fixed in later release, but I'm seeing many NPE in the namenode log.
Permission is disabled on this cluster.

 
2008-03-27 03:22:39,984 INFO org.apache.hadoop.ipc.Server: IPC Server handler 18 on 8020, 
call setPermission(/user/knoguchi/file0, rwxr-xr-x) from 99.9.99.9:55555: 
error: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
        at org.apache.hadoop.dfs.FSDirectory.unprotectedSetPermission(FSDirectory.java:411)
        at org.apache.hadoop.dfs.FSDirectory.setPermission(FSDirectory.java:405)
        at org.apache.hadoop.dfs.FSNamesystem.setPermission(FSNamesystem.java:716)
        at org.apache.hadoop.dfs.NameNode.setPermission(NameNode.java:297)
        at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:409)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:899)

Issue Links

• relates to: HADOOP-2841 Dfs methods should not throw RemoteException