Are you running a firewall on Server A? Check your firewall settings if so, to allow connections to port 9001/etc.. I'd recommend disabling Firewalls in development environments.
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 > -- Harsh J www.harshj.com
