I made it works.
The configuration file contains some error.
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://xi-pli:9000</value>
<description></description>
</property>
<property>
<name>mapred.job.tracker</name>
<value>xi-pli:9001</value>
<description></description>
</property>
Here,we'd better use the IP address instead of the host-name. because the
hostname may point to a lookback address.
When I use the IP address, the application can run on any machine.
Thanks for your great help.
2010/11/25 li ping <li.j...@gmail.com>
> But I can run the application on the hadoop server. (not use the hadoop
> command to run).
>
>
>
> On Thu, Nov 25, 2010 at 4:38 PM, Jeff Zhang <zjf...@gmail.com> wrote:
>
>> Please check the status of job tracker since you can not find port
>> 9001 using netstat
>>
>>
>>
>> 2010/11/25 li ping <li.j...@gmail.com>:
>> > Hi:
>> > I am trying to run a job in my own application.
>> > So far, I can run the job on the server which the hadoop server is
>> running
>> > on.
>> > But what I expect is the hadoop server is running on server A. and the
>> > application will run on other server (B server).
>> > If I run the application on Server B, it will throw some error, see
>> blow:
>> > 10/11/25 15:54:10 INFO ipc.Client: Retrying connect to server:
>> > xi-pli/xxx.xxx.xxx.xxx:9001. Already tried 0 time(s).
>> > 10/11/25 15:54:11 INFO ipc.Client: Retrying connect to
>> > server: xi-pli/xxx.xxx.xxx.xxx:9001. Already tried 1 time(s).
>> > 10/11/25 15:54:12 INFO ipc.Client: Retrying connect to
>> > server: xi-pli/xxx.xxx.xxx.xxx:9001. Already tried 2 time(s).
>> > ...........
>> > Here I replace the real ip address with the xxx.xxx.xxx.xxx.
>> > This is my configuration file:
>> > <configuration>
>> > <property>
>> > <name>fs.default.name</name>
>> > <value>hdfs://xi-pli:9000</value>
>> > <description></description>
>> > </property>
>> > <property>
>> > <name>mapred.job.tracker</name>
>> > <value>xi-pli:9001</value>
>> > <description></description>
>> > </property>
>> > </configuration>
>> > The configuration file on server side is almost the same.
>> > The server A and B can ping each other. and Also can ssh to each other
>> > without the password.
>> > The A,B server has the same username "hadoop"
>> > The iptable also has been shutdown.
>> > I can use the "telnet" command to connect to 9001 port on hadoop server
>> > (Server A). but on Server B, I can't telnet to Server A.(The hadoop
>> server
>> > is running on Server A )
>> > If I use the netstat -a to check the port. I can't find the 9001 port.
>> > I have no idea why I can't run the job on the other server. If anyone
>> can
>> > give me some suggestion, that's very appreciated.
>> > Thanks
>> > Best Regards
>> > --
>> > -----李平
>> > --
>> > -----李平
>> >
>>
>>
>>
>> --
>> Best Regards
>>
>> Jeff Zhang
>>
>
>
>
> --
> -----李平
>
--
-----李平
