Thanks Hairong, you were right, I had the same port number for both. Cheers Arv
-----Original Message----- From: Hairong Kuang [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 30, 2008 2:52 PM To: hadoop-user Subject: Re: Unknown protocol to name node: JobSubmissionProtocol JobClient is supposed to talk a JobTracker. But the stack trace shows that it talked to a namenode. Could you check your configuration to see if the jobtracker port # was set to be the same as the namenode port #. Hairong On 7/30/08 6:56 AM, "Arv Mistry" <[EMAIL PROTECTED]> wrote: > > Can anyone provide any hints as to why this might be happening; > > I have hadoop running all process' on one machine (for > trouble-shooting) and when I go to submit a job from another machine I > get the following exception; > > INFO | jvm 2 | 2008/07/30 06:05:05 | 2008-07-30 06:05:05,117 ERROR > [HadoopJobTool] java.io.IOException: Unknown protocol to name node: > org.apache.hadoop.mapred.JobSubmissionProtocol > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.dfs.NameNode.getProtocolVersion(NameNode.java:84) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccess > or > Impl.java:25) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > java.lang.reflect.Method.invoke(Method.java:597) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.RPC$Server.call(RPC.java:446) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.Server$Handler.run(Server.java:896) > INFO | jvm 2 | 2008/07/30 06:05:05 | > INFO | jvm 2 | 2008/07/30 06:05:05 | > org.apache.hadoop.ipc.RemoteException: java.io.IOException: Unknown > protocol to name node: org.apache.hadoop.mapred.JobSubmissionProtocol > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.dfs.NameNode.getProtocolVersion(NameNode.java:84) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccess > or > Impl.java:25) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > java.lang.reflect.Method.invoke(Method.java:597) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.RPC$Server.call(RPC.java:446) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.Server$Handler.run(Server.java:896) > INFO | jvm 2 | 2008/07/30 06:05:05 | > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.Client.call(Client.java:557) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:212) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > $Proxy4.getProtocolVersion(Unknown Source) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.RPC.getProxy(RPC.java:313) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.ipc.RPC.getProxy(RPC.java:300) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:383) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.mapred.JobClient.init(JobClient.java:376) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:346) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:958) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > com.rialto.profiler.profiler.clickstream.hadoop.HadoopJobTool.run(Hado > op > JobTool.java:129) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > com.rialto.profiler.profiler.clickstream.hadoop.HadoopJobTool.launchJo > b( > HadoopJobTool.java:142) > INFO | jvm 2 | 2008/07/30 06:05:05 | at > com.rialto.profiler.profiler.clickstream.RawStreamGenerator.run(RawStr > ea > mGenerator.java:138)
