[hadoop2] TestTableInputFormatScan* fails intermittently with PrivilegedActionException

2013-04-16 23:27:04,469 ERROR [IPC Server handler 0 on 45600] security.UserGroupInformation(1370): PriviledgedActionException as:ec2-user.hfs.2 (auth:SIMPLE) cause:org.apache.hadoop.security.AccessControlException: Can't continue with getBlockLocalPathInfo() authorization. The user ec2-user.hfs.2 is not allowed to call getBlockLocalPathInfo
2013-04-16 23:27:04,501 WARN  [PRI IPC Server handler 4 on 33892] hdfs.DFSInputStream(489): Failed to connect to /127.0.0.1:55547 for block, add to deadNodes and continue. org.apache.hadoop.security.AccessControlException: Can't continue with getBlockLocalPathInfo() authorization. The user ec2-user.hfs.2 is not allowed to call getBlockLocalPathInfo
	at org.apache.hadoop.hdfs.server.datanode.DataNode.checkBlockLocalPathAccess(DataNode.java:1016)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.getBlockLocalPathInfo(DataNode.java:1026)
	at org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolServerSideTranslatorPB.getBlockLocalPathInfo(ClientDatanodeProtocolServerSideTranslatorPB.java:112)
	at org.apache.hadoop.hdfs.protocol.proto.ClientDatanodeProtocolProtos$ClientDatanodeProtocolService$2.callBlockingMethod(ClientDatanodeProtocolProtos.java:5104)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:454)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:910)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1694)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1690)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1367)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1688)

org.apache.hadoop.security.AccessControlException: Can't continue with getBlockLocalPathInfo() authorization. The user ec2-user.hfs.2 is not allowed to call getBlockLocalPathInfo
	at org.apache.hadoop.hdfs.server.datanode.DataNode.checkBlockLocalPathAccess(DataNode.java:1016)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.getBlockLocalPathInfo(DataNode.java:1026)
	at org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolServerSideTranslatorPB.getBlockLocalPathInfo(ClientDatanodeProtocolServerSideTranslatorPB.java:112)
	at org.apache.hadoop.hdfs.protocol.proto.ClientDatanodeProtocolProtos$ClientDatanodeProtocolService$2.callBlockingMethod(ClientDatanodeProtocolProtos.java:5104)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:454)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:910)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1694)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1690)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1367)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1688)

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:90)
	at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:57)
	at org.apache.hadoop.hdfs.DFSClient.getLocalBlockReader(DFSClient.java:790)
	at org.apache.hadoop.hdfs.DFSInputStream.getBlockReader(DFSInputStream.java:888)
	at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:455)
	at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:645)
	at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:689)
	at java.io.DataInputStream.readFully(DataInputStream.java:178)
	at java.io.DataInputStream.readFully(DataInputStream.java:152)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.getTableDescriptorModtime(FSTableDescriptors.java:429)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.getTableDescriptorModtime(FSTableDescriptors.java:414)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:169)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:132)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:3350)
	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.hbase.ipc.ProtobufRpcServerEngine$Server.call(ProtobufRpcServerEngine.java:174)
	at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1871)
Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException): Can't continue with getBlockLocalPathInfo() authorization. The user ec2-user.hfs.2 is not allowed to call getBlockLocalPathInfo
	at org.apache.hadoop.hdfs.server.datanode.DataNode.checkBlockLocalPathAccess(DataNode.java:1016)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.getBlockLocalPathInfo(DataNode.java:1026)
	at org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolServerSideTranslatorPB.getBlockLocalPathInfo(ClientDatanodeProtocolServerSideTranslatorPB.java:112)
	at org.apache.hadoop.hdfs.protocol.proto.ClientDatanodeProtocolProtos$ClientDatanodeProtocolService$2.callBlockingMethod(ClientDatanodeProtocolProtos.java:5104)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:454)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:910)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1694)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1690)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1367)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1688)

	at org.apache.hadoop.ipc.Client.call(Client.java:1164)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
	at com.sun.proxy.$Proxy20.getBlockLocalPathInfo(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolTranslatorPB.getBlockLocalPathInfo(ClientDatanodeProtocolTranslatorPB.java:199)
	at org.apache.hadoop.hdfs.BlockReaderLocal.getBlockPathInfo(BlockReaderLocal.java:254)
	at org.apache.hadoop.hdfs.BlockReaderLocal.newBlockReader(BlockReaderLocal.java:167)
	at org.apache.hadoop.hdfs.DFSClient.getLocalBlockReader(DFSClient.java:786)
	... 17 more