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Posted to common-user@hadoop.apache.org by "Eason.Lee" <le...@gmail.com> on 2009/06/30 08:53:03 UTC

Can Namenode and JobTracker run in different server?

Just want to run NameNode and JobTracker in separate server,for example
run NameNode in server1 and JobTracker in server2

my config is just like this, but It seems jobtracker not start correctly!

   <property>
      <name>fs.default.name</name>
      <value>hdfs://server1:9000/</value>
   </property>
   <property>
      <name>mapred.job.tracker</name>
      <value>server2:9001</value>
   </property>

Re: Can Namenode and JobTracker run in different server?

Posted by "Eason.Lee" <le...@gmail.com>.

Oh,I just used bin/start-all.sh
I will try that, 3Q

2009/6/30 Tom White <to...@cloudera.com>

> The config looks fine, but you need to start the daemons on the
> relevant servers. You will need the same config on both server1 and
> server2.
>
> On server1:
>
> bin/start-dfs.sh
>
> On server2:
>
> bin/start-mapred.sh
>
> Hope this helps.
>
> Tom
>
> On Tue, Jun 30, 2009 at 7:53 AM, Eason.Lee<le...@gmail.com> wrote:
> > Just want to run NameNode and JobTracker in separate server,for example
> > run NameNode in server1 and JobTracker in server2
> >
> > my config is just like this, but It seems jobtracker not start correctly!
> >
> >   <property>
> >      <name>fs.default.name</name>
> >      <value>hdfs://server1:9000/</value>
> >   </property>
> >   <property>
> >      <name>mapred.job.tracker</name>
> >      <value>server2:9001</value>
> >   </property>
> >
>

Re: Can Namenode and JobTracker run in different server?

Posted by Tom White <to...@cloudera.com>.

The config looks fine, but you need to start the daemons on the
relevant servers. You will need the same config on both server1 and
server2.

On server1:

bin/start-dfs.sh

On server2:

bin/start-mapred.sh

Hope this helps.

Tom

On Tue, Jun 30, 2009 at 7:53 AM, Eason.Lee<le...@gmail.com> wrote:
> Just want to run NameNode and JobTracker in separate server,for example
> run NameNode in server1 and JobTracker in server2
>
> my config is just like this, but It seems jobtracker not start correctly!
>
>   <property>
>      <name>fs.default.name</name>
>      <value>hdfs://server1:9000/</value>
>   </property>
>   <property>
>      <name>mapred.job.tracker</name>
>      <value>server2:9001</value>
>   </property>
>