John Zhuge created HDFS-10378:
---------------------------------

             Summary: setOwner throws AccessControlException with wrong message
                 Key: HDFS-10378
                 URL: https://issues.apache.org/jira/browse/HDFS-10378
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 2.8.0
            Reporter: John Zhuge
            Assignee: John Zhuge
            Priority: Minor


Call {{setOwner}} as a non-super user does trigger {{AccessControlException}}, 
however, the message "Permission denied. user=user1967821757 is not the owner 
of inode=child" is wrong. Expect this message: "Non-super user cannot change 
owner".

Output of patched unit test {{TestPermission.testFilePermission}}:
{noformat}
2016-05-06 16:45:44,915 [main] INFO  security.TestPermission 
(TestPermission.java:testFilePermission(280)) - GOOD: got 
org.apache.hadoop.security.AccessControlException: Permission denied. 
user=user1967821757 is not the owner of inode=child1
        at 
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkOwner(FSPermissionChecker.java:273)
        at 
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:250)
        at 
org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:190)
        at 
org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1642)
        at 
org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1626)
        at 
org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkOwner(FSDirectory.java:1595)
        at 
org.apache.hadoop.hdfs.server.namenode.FSDirAttrOp.setOwner(FSDirAttrOp.java:88)
        at 
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setOwner(FSNamesystem.java:1717)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.setOwner(NameNodeRpcServer.java:835)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.setOwner(ClientNamenodeProtocolServerSideTranslatorPB.java:481)
        at 
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:665)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:989)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2423)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2419)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1755)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2417)
{noformat}

Will upload the unit test patch shortly.



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