Does your machines can ssh to each other ?
And can open the JobTracker Web UI?

Jeff Zhang


On Fri, Dec 18, 2009 at 1:25 PM, anjali nair <anjalina...@gmail.com> wrote:

> Hi..
>
> I have been trying to setup hadoop cluster using hadoop-0.20.1. Same
> machine
> acts as the namenode and jobtracker. When I start the cluster namenode,
> datanode, jt and tt all get started. But when trying to submit a job the
> datanode shows *Retrying connect to server error*.
> I am trying to submit job as: hadoop fs -put inp input
>
> I tried reformatting the namenode, but that did not help.
>
> *core-site.xml:*
> <configuration>
> <property>
>  <name>hadoop.tmp.dir</name>
>  <value>/tmp/hadoop-tmp</value>
> </property>
> <property>
>  <name>fs.default.name</name>
>  <value>hdfs://cluster:9000</value>
> </property>
> </configuration>
>
> *mapred-site.xml:*
> <configuration>
> <property>
>  <name>mapred.job.tracker</name>
>  <value>cluster:9001</value>
> </property>
> <property>
> <name>mapred.map.tasks</name>
> <value>6</value>
> </property>
> <property>
> <name>mapred.reduce.tasks</name>
> <value>2</value>
> </property>
> </configuration>
>
> *hdfs-site.xml:*
> <configuration>
> <property>
>  <name>dfs.replication</name>
>  <value>1</value>
> </property>
> <property>
>  <name>dfs.name.dir</name>
>  <value>${hadoop.tmp.dir}/dfs/name</value>
> </property>
> <property>
>  <name>dfs.data.dir</name>
>  <value>${hadoop.tmp.dir}/dfs/data</value>
> </property>
> <property>
> <name>dfs.block.size</name>
> <value>1048576</value>
> </property>
> </configuration>
>
>
> plz help... could be any problem with the ports or the network?
>
> --
> Anjali M
> Student
>

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