org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException): Access denied for user xusweeter. Superuser privilege is required

    at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkSuperuserPrivilege(FSPermissionChecker.java:122)

    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkSuperuserPrivilege(FSNamesystem.java:5909)

    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.datanodeReport(FSNamesystem.java:4944)

    at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getDatanodeReport(NameNodeRpcServer.java:1039)

    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getDatanodeReport(ClientNamenodeProtocolServerSideTranslatorPB.java:698)

    at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)

    at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)

    at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:982)

    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)

    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)

    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:1698)

    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)

    at org.apache.hadoop.ipc.Client.call(Client.java:1475)

    at org.apache.hadoop.ipc.Client.call(Client.java:1412)

    at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)

    at com.sun.proxy.$Proxy11.getDatanodeReport(Unknown Source)

    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:626)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606)

    at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191)

    at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)

    at com.sun.proxy.$Proxy12.getDatanodeReport(Unknown Source)

    at org.apache.hadoop.hdfs.DFSClient.datanodeReport(DFSClient.java:2554)

    at org.apache.hadoop.hdfs.DistributedFileSystem.getDataNodeStats(DistributedFileSystem.java:1196)

    at org.apache.hadoop.hdfs.DistributedFileSystem.getDataNodeStats(DistributedFileSystem.java:1190)

    at com.pub.file.business.HDFSManager.getDataInfo(HDFSManager.java:74)

    at com.pub.file.business.HDFSManager.main(HDFSManager.java:42)

<property>

    <name>dfs.permissions</name>

    <value>false</value>

</property>