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From Lokendra Singh <lsingh....@gmail.com>
Subject Re: Connect to hadoop: failure
Date Wed, 02 Feb 2011 18:05:02 GMT
Hi,

Seems something is wrong with hdfs on your hadoop cluster.
Can you try running 'jps' on master and slave nodes to check the 'datanode'
running on slaves and 'namenode', 'secondarynamenode' running on master
 nodes. You can also check the logs inside $HADOOP_HOME/logs/ for any
problems with cluster

Regards
Lokendra


On Wed, Feb 2, 2011 at 11:25 PM, sharath jagannath <
sharathjagannath@gmail.com> wrote:

> Hey All,
>
> I am trying the clustering quick-start tutorial but I am not able to
> connect
> to the hadoop.
> Stack trace:
>
> HADOOP_CONF_DIR=/Users/sjagannath/hadoop/conf
> 11/02/02 09:20:13 WARN driver.MahoutDriver: No
> org.apache.mahout.clustering.syntheticcontrol.canopy.Job.props found on
> classpath, will use command-line arguments only
> 11/02/02 09:20:13 INFO canopy.Job: Running with default arguments
> 11/02/02 09:20:14 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 0 time(s).
> 11/02/02 09:20:15 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 1 time(s).
> 11/02/02 09:20:16 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 2 time(s).
> 11/02/02 09:20:17 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 3 time(s).
> 11/02/02 09:20:18 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 4 time(s).
> 11/02/02 09:20:19 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 5 time(s).
> 11/02/02 09:20:20 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 6 time(s).
> 11/02/02 09:20:21 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 7 time(s).
> 11/02/02 09:20:22 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 8 time(s).
> 11/02/02 09:20:23 INFO ipc.Client: Retrying connect to server: localhost/
> 127.0.0.1:9002. Already tried 9 time(s).
> Exception in thread "main" java.net.ConnectException: Call to localhost/
> 127.0.0.1:9002 failed on connection exception: java.net.ConnectException:
> Connection refused
> at org.apache.hadoop.ipc.Client.wrapException(Client.java:767)
> at org.apache.hadoop.ipc.Client.call(Client.java:743)
> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
> at $Proxy0.getProtocolVersion(Unknown Source)
> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359)
> at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:106)
> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:207)
> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:170)
> at
>
> org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:82)
> at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1378)
> at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
> at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1390)
> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:196)
> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:95)
> at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:180)
> at org.apache.mahout.common.HadoopUtil.overwriteOutput(HadoopUtil.java:38)
> at
> org.apache.mahout.clustering.syntheticcontrol.canopy.Job.main(Job.java:53)
> 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.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:184)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> Caused by: java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
> at
>
> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404)
> at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:304)
> at org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:176)
> at org.apache.hadoop.ipc.Client.getConnection(Client.java:860)
> at org.apache.hadoop.ipc.Client.call(Client.java:720)
> ... 27 more
>
>
> Any idea how I should resolve it.
> --
> Thanks,
> Sharath
>

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