thanks for your reply,here is my configuration.
master:

core-site.xml:

<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://192.168.0.142:9000</value>
</property>

</configuration>


hdfs-site.xml:

<configuration>
<property>
<name>dfs.name.dir</name>
<value>/home/hadoop/tmp</value>
</property>
<property>
<property>
<name>dfs.data.dir</name>
<value>/home/hadoop/data</value>
</property>
<name>dfs.replication</name>
<value>1</value>
</property>

</configuration>

mapred-site.xml:

<configuration>
<property>
<name>mapred.job.tracker</name>
<value>192.168.0.142:9200</value>
<description>jobtracker host port</description>
</property>
</configuration>


And they are the same on slaves.And any problem with these configuration.i
got only one slave on 192.168.0.177

2010/11/25 rahul patodi <patodira...@gmail.com>

> also check your other file like /etc/hosts
>
>
> On Thu, Nov 25, 2010 at 10:36 AM, rahul patodi <patodira...@gmail.com>wrote:
>
>> i think you should check your configuration file in the conf folder and
>> add the required entry in
>> core-site.xml, mapred-site.xml and hdfs-site.xml
>> for pseudo distributed mode you can refer:
>> http://hadoop-tutorial.blogspot.com/2010/11/running-hadoop-in-pseudo-distributed.html
>> for distributed mode you can refer:
>> http://hadoop-tutorial.blogspot.com/2010/11/running-hadoop-in-distributed-mode.html
>>
>>  if you are using cloudera you can refer:
>> http://cloudera-tutorial.blogspot.com/
>>
>> if you have any problem please leave a comment
>>
>>
>> --
>> -Thanks and Regards,
>> Rahul Patodi
>> Associate Software Engineer,
>> Impetus Infotech (India) Private Limited,
>> www.impetus.com
>> Mob:09907074413
>>
>> On Thu, Nov 25, 2010 at 10:23 AM, 祝美祺 <henhaozhume...@gmail.com> wrote:
>>
>>> Hi ,
>>>      i am using 0.20.2.. when i try to start hadoop,the namenode
>>> ,datanode works will ,but i can't submit jobs.i look at the logs ,and find
>>>  the error like:
>>>
>>> 2010-11-25 12:38:02,623 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 0 time(s).
>>> 2010-11-25 12:38:03,626 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 1 time(s).
>>> 2010-11-25 12:38:04,627 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 2 time(s).
>>> 2010-11-25 12:38:05,629 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 3 time(s).
>>> 2010-11-25 12:38:06,631 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 4 time(s).
>>> 2010-11-25 12:38:07,636 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 5 time(s).
>>> 2010-11-25 12:38:08,641 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 6 time(s).
>>> 2010-11-25 12:38:09,644 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 7 time(s).
>>> 2010-11-25 12:38:10,645 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 8 time(s).
>>> 2010-11-25 12:38:11,649 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: localhost/127.0.0.1:9000. Already tried 9 time(s).
>>> 2010-11-25 12:38:11,651 ERROR org.apache.hadoop.mapred.TaskTracker:
>>> Caught exception: java.net.ConnectException: Call to localhost/
>>> 127.0.0.1:9000 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 $Proxy5.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.Path.getFileSystem(Path.java:175)
>>>  at
>>> org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:1033)
>>> at org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:1720)
>>>  at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:2833)
>>> Caused by: java.net.ConnectException: Connection refused
>>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>>>  at
>>> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
>>> 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)
>>> ... 15 more
>>>
>>> Who can tell me how to solve this problem?
>>>
>>>
>>
>>
>>
>
>
>


-- 
祝美祺

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