Hi, I am trying to configure Hadoop distributed environment . I downloaded hadoop RPM from cloudera, installed it on MACHINE1 (Ubuntu Linux) and MACHINE2 (Fedora Linux)
Installed Hadoop RPM on MACHINE2 and Debian Packages on MACHINE1 edited etc/hadoop/conf.pseudo/masters file on MACHINE1 with MACHINE2 name in masters file added MACHINE name in salves file of MACHINE2 under etc/hadoop/conf.my_cluster/slaves (conf.my_cluster is the alternatives on MACHINE2) was able to SSN from MACHINE2 to MACHINE1 I am missing something? getting the following error while running mapreduce job from MACHINE2 09/09/02 22:42:15 INFO dfs.DFSClient: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /var/lib/hadoop/cache/hadoop/mapred/system/job_200909021816_0003/job.jar could only be replicated to 0 nodes, instead of 1 at org.apache.hadoop.dfs.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1123) at org.apache.hadoop.dfs.NameNode.addBlock(NameNode.java:330) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:481) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:890) at org.apache.hadoop.ipc.Client.call(Client.java:716) at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216) at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59) at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source) at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:2450) at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:2333) at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.access$1800(DFSClient.java:1745) at org.apache.hadoop.dfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:1922) Thanks Deepak