Hi @Tylenol ****Console command: hadoop distcp hdfs://server4.localdomain:8020/tmp/distcp_test.txt hdfs://server8.local:8020/tmp ****NOTE: server4 (source-HDP-kerberos) and server8(target-CDP-non-kerberos) = NameNodes *************ERROR **************** Java config name: null Native config name: /etc/krb5.conf Loaded from native config >>>KinitOptions cache name is /tmp/krb5cc_11259 21/05/11 13:34:10 ERROR tools.DistCp: Invalid arguments: java.io.IOException: Failed on local exception: java.io.IOException: Server asks us to fall back to SIMPLE auth, but this client is configured to only allow secure connections.; Host Details : local host is: "server4.localdomain/10.x.x.x"; destination host is: "server8.local":8020; at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:782) at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1558) at org.apache.hadoop.ipc.Client.call(Client.java:1498) at org.apache.hadoop.ipc.Client.call(Client.java:1398) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:233) at com.sun.proxy.$Proxy10.getFileInfo(Unknown Source) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:818) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:291) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:203) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:185) at com.sun.proxy.$Proxy11.getFileInfo(Unknown Source) at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2165) at org.apache.hadoop.hdfs.DistributedFileSystem$26.doCall(DistributedFileSystem.java:1442) at org.apache.hadoop.hdfs.DistributedFileSystem$26.doCall(DistributedFileSystem.java:1438) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1438) at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1447) at org.apache.hadoop.tools.DistCp.setTargetPathExists(DistCp.java:227) at org.apache.hadoop.tools.DistCp.run(DistCp.java:118) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76) at org.apache.hadoop.tools.DistCp.main(DistCp.java:462) Caused by: java.io.IOException: Server asks us to fall back to SIMPLE auth, but this client is configured to only allow secure connections. at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:787) at org.apache.hadoop.ipc.Client$Connection.access$3200(Client.java:397) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1620) at org.apache.hadoop.ipc.Client.call(Client.java:1451) ... 22 more Invalid arguments: Failed on local exception: java.io.IOException: Server asks us to fall back to SIMPLE auth, but this client is configured to only allow secure connections.; Host Details : local host is: "server4.localdomain/10.x.x.x.x"; destination host is: "server8.local":8020; *********************************************** Thanks!
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