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From Astie Darmayantie <astie.darmayan...@yahoo.com>
Subject Can not generate a result
Date Mon, 13 Aug 2012 04:36:20 GMT
hi i am new to hadoop.
i already do the the precautionary measures like : configuring hadoop as pseudo-distributed
operations, namenode -format etc. before 
running start-all.sh

and i try to execute sample program WordCount by using :
./bin/hadoop jar /home/astie/thesis/project_eclipse/WordCount.jar WordCount /home/astie/thesis/project_eclipse/input/
/home/astie/thesis/project_eclipse/output/


it doesn't generate the result and i got this in the log file :

2012-08-13 11:28:27,053 WARN org.apache.hadoop.hdfs.DFSClient: Error Recovery for block null
bad datanode[0] nodes == null
2012-08-13 11:28:27,053 WARN org.apache.hadoop.hdfs.DFSClient: Could not get block locations.
Source file "/tmp/mapred/system/jobtracker.info" - Aborting...
2012-08-13 11:28:27,053 WARN org.apache.hadoop.mapred.JobTracker: Writing to file hdfs://localhost:9000/tmp/mapred/system/jobtracker.info
failed!
2012-08-13 11:28:27,054 WARN org.apache.hadoop.mapred.JobTracker: FileSystem is not ready
yet!
2012-08-13 11:28:27,059 WARN org.apache.hadoop.mapred.JobTracker: Failed to initialize recovery
manager. 
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /tmp/mapred/system/jobtracker.info
could only be replicated to 0 nodes, instead of 1
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
        at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:416)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)

        at org.apache.hadoop.ipc.Client.call(Client.java:1070)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
        at $Proxy5.addBlock(Unknown Source)
        at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
        at $Proxy5.addBlock(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3510)
        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3373)
        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2600(DFSClient.java:2589)
        at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2829)

i am using openSuse and hadoop-1.0.3 also using eclipse to write the program. 
it is said that the node was null. yes, i am still running it with my computer only. is it
the problem?

can you tell me how to fix this? thank you 

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