Hi,
I'm not sure what's the problem with the virtual lab.
The hue GUI is not working, attached is the error screen shot.
Also when,I executed the below proc hadoop code:
%let std=&SYSUSERID; %let stdpw=Metadata0;
proc hadoop username="&std" verbose;
hdfs mkdir="/user/&std/DIACHD/data";
run;
Got the below error:
ERROR: java.net.ConnectException: Call From server1.demo.sas.com/10.250.86.140 to server2.demo.sas.com:8020 failed on connection
exception: java.net.ConnectException: Connection refused; For more details see:
http://wiki.apache.org/hadoop/ConnectionRefused
ERROR: at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
ERROR: at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
ERROR: at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
ERROR: at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
ERROR: at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
ERROR: at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
ERROR: at org.apache.hadoop.ipc.Client.call(Client.java:1472)
ERROR: at org.apache.hadoop.ipc.Client.call(Client.java:1399)
ERROR: at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
ERROR: at com.sun.proxy.$Proxy9.mkdirs(Unknown Source)
ERROR: at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.mkdirs(ClientNamenodeProtocolTranslatorPB.java:539)
ERROR: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
ERROR: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
ERROR: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
ERROR: at java.lang.reflect.Method.invoke(Method.java:606)
ERROR: at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
ERROR: at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
ERROR: at com.sun.proxy.$Proxy10.mkdirs(Unknown Source)
ERROR: at org.apache.hadoop.hdfs.DFSClient.primitiveMkdir(DFSClient.java:2760)
ERROR: at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:2731)
ERROR: at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:870)
ERROR: at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:866)
ERROR: at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
ERROR: at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirsInternal(DistributedFileSystem.java:866)
ERROR: at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirs(DistributedFileSystem.java:859)
ERROR: at org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:1817)
2 The SAS System 09:20 Friday, November 24, 2017
ERROR: at com.dataflux.hadoop.DFHDFS$16.run(DFHDFS.java:562)
ERROR: at com.dataflux.hadoop.DFHDFS$16.run(DFHDFS.java:558)
ERROR: at java.security.AccessController.doPrivileged(Native Method)
ERROR: at javax.security.auth.Subject.doAs(Subject.java:415)
ERROR: at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
ERROR: at com.dataflux.hadoop.DFHDFS.mkdir(DFHDFS.java:558)
ERROR: Caused by: java.net.ConnectException: Connection refused
ERROR: at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
ERROR: at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
ERROR: at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
ERROR: at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
ERROR: at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
ERROR: at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
ERROR: at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
ERROR: at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
ERROR: at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
ERROR: at org.apache.hadoop.ipc.Client.call(Client.java:1438)
ERROR: ... 25 more
Appreciate, if someone can suggest what's wrong with my lab. Do, i need to start any services?
Hi akpattnaik,
Try restarting your Hadoop cluster. Instructions can be found in Troubleshooting Your SAS-Hadoop Training Environment located on the Academy home page.
Let me know how it goes,
theresa
Hi akpattnaik,
Try restarting your Hadoop cluster. Instructions can be found in Troubleshooting Your SAS-Hadoop Training Environment located on the Academy home page.
Let me know how it goes,
theresa
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