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From "Koji Noguchi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3108) NPE in FSDirectory.unprotectedSetPermission
Date Thu, 27 Mar 2008 18:27:24 GMT
NPE in FSDirectory.unprotectedSetPermission

                 Key: HADOOP-3108
                 URL: https://issues.apache.org/jira/browse/HADOOP-3108
             Project: Hadoop Core
          Issue Type: Bug
          Components: dfs
    Affects Versions: 0.16.1
            Reporter: Koji Noguchi

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 
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)

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