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Exception encountered org.apache.hadoop.ipc.RemoteException(java.io.IOException): Delegation Token can be issued only with kerberos or web authentication
org.apache.hadoop.tools.DistCp: Exception encountered 
org.apache.hadoop.ipc.RemoteException(java.io.IOException): Delegation Token can be issued only with kerberos or web authentication	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getDelegationToken(FSNamesystem.java:6635)	at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getDelegationToken(NameNodeRpcServer.java:563)	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getDelegationToken(ClientNamenodeProtocolServerSideTranslatorPB.java:987)	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:969)	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAs(Subject.java:415)	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1656)	at org.apache.hadoop.ipc.Server$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$Invoker.invoke(ProtobufRpcEngine.java:229)	at com.sun.proxy.$Proxy14.getDelegationToken(Unknown Source)	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDelegationToken(ClientNamenodeProtocolTranslatorPB.java:933)	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.$Proxy15.getDelegationToken(Unknown Source)	at org.apache.hadoop.hdfs.DFSClient.getDelegationToken(DFSClient.java:1029)	at org.apache.hadoop.hdfs.DistributedFileSystem.getDelegationToken(DistributedFileSystem.java:1542)	at org.apache.hadoop.fs.FileSystem.collectDelegationTokens(FileSystem.java:530)	at org.apache.hadoop.fs.FileSystem.addDelegationTokens(FileSystem.java:508)	at org.apache.hadoop.hdfs.DistributedFileSystem.addDelegationTokens(DistributedFileSystem.java:2228)	at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:121)	at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:100)	at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:80)	at org.apache.hadoop.tools.mapred.CopyOutputFormat.checkOutputSpecs(CopyOutputFormat.java:121)	at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:266)	at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:139)	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1290)	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1287)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAs(Subject.java:415)	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1656)	at org.apache.hadoop.mapreduce.Job.submit(Job.java:1287)	at org.apache.hadoop.tools.DistCp.createAndSubmitJob(DistCp.java:183)	at org.apache.hadoop.tools.DistCp.execute(DistCp.java:153)	at org.apache.hadoop.tools.DistCp.run(DistCp.java:126)	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)	at org.apache.oozie.action.hadoop.DistcpMain.run(DistcpMain.java:64)	at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:47)	at org.apache.oozie.action.hadoop.DistcpMain.main(DistcpMain.java:34)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:236)	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)	at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)	at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler.runSubtask(LocalContainerLauncher.java:380)	at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler.runTask(LocalContainerLauncher.java:301)	at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler.access$200(LocalContainerLauncher.java:187)	at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler$1.run(LocalContainerLauncher.java:230)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)	at java.util.concurrent.FutureTask.run(FutureTask.java:262)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:744)