Hi guys,
I'm realy new to hadoop. I have configured a single node hadoop cluster. but
seems that my data node is not working. job tracker log file shows this
message(alot of them per 10 second):
********************************************************************
2011-10-16 00:01:15,558 WARN org.apache.hadoop.mapred.JobTracker:
Retrying...
2011-10-16 00:01:15,589 WARN org.apache.hadoop.hdfs.DFSClient: DataStreamer
Exception: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/tmp/hadoop-root/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:1417)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:596)
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$Server.call(RPC.java:523)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1383)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1379)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:416)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1377)
at org.apache.hadoop.ipc.Client.call(Client.java:1030)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:224)
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:3104)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:2975)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2000(DFSClient.java:2255)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2446)
2011-10-16 00:01:15,589 WARN org.apache.hadoop.hdfs.DFSClient: Error
Recovery for block null bad datanode[0] nodes == null
2011-10-16 00:01:15,589 WARN org.apache.hadoop.hdfs.DFSClient: Could not get
block locations. Source file "/tmp/hadoop-root/mapred/system/jobtracker.info"
- Aborting...
2011-10-16 00:01:15,590 WARN org.apache.hadoop.mapred.JobTracker: Writing to
file hdfs://localhost/tmp/hadoop-root/mapred/system/jobtracker.info failed!
2011-10-16 00:01:15,593 WARN org.apache.hadoop.mapred.JobTracker: FileSystem
is not ready yet!
2011-10-16 00:01:15,603 WARN org.apache.hadoop.mapred.JobTracker: Failed to
initialize recovery manager.
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/tmp/hadoop-root/mapred/system/jobtracker.info could only be replicated to 0
nodes, instead of 1
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1417)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:596)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:523)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1383)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1379)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:416)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1377)
at org.apache.hadoop.ipc.Client.call(Client.java:1030)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:224)
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:3104)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:2975)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2000(DFSClient.java:2255)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2446)
********************************************************************
The name node generates this:
2011-10-16 00:01:15,587 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 9 on 8020, call addBlock(/tmp/hadoop-root/mapred/system/
jobtracker.info, DFSClient_-284777799) from 127.0.0.1:48484: error:
java.io.IOException: File
/tmp/hadoop-root/mapred/system/jobtracker.infocould only be replicated
to 0 nodes, instead of 1
java.io.IOException: File
/tmp/hadoop-root/mapred/system/jobtracker.infocould only be replicated
to 0 nodes, instead of 1
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1417)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:596)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:523)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1383)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1379)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:416)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1377)
********************************************************************
and the data node log file generates:
Unrecognized option: -jvm
Could not create the Java virtual machine.
I did all the step "Hadoop the definitive guide said in appendix A"
Could anyone help? I'm using fedora 15 and openjdk.
Sorry for large email.
