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The following page has been changed by DennisKubes:
http://wiki.apache.org/nutch/NutchHadoopTutorial

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  export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves
  }}}
  
- There are other variables in this file which will affect the behavior of 
Hadoop.  If when you start running the script later you start getting ssh 
errors, try changing the HADOOP_SSH_OPTS variable.  Note also that, after the 
initial copy, you can set NUTCH_MASTER in your conf/hadoop-env.sh and it will 
use rsync to update the code running on each slave when you start daemons on 
that slave.
+ There are other variables in this file which will affect the behavior of 
Hadoop.  If when you start running the script later you start getting ssh 
errors, try changing the HADOOP_SSH_OPTS variable.  Note also that, after the 
initial copy, you can set HADOOP_MASTER in your conf/hadoop-env.sh and it will 
use rsync changes on the master to each slave node.  There is a section below 
on how to do this.
  
  Next we are going to create the keys on the master node and copy them over to 
each of the slave nodes.  This must be done as the nutch user we created 
earlier.  Don't just su in as the nutch user, start up a new shell and  login 
as the nutch user.  If you su in the password-less login we are about to setup 
will not work in testing but will work when a new session is started as the 
nutch user. 
  

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