Step 2. Create a node-specific configuration file and copy it to a volume
Complete the following steps to create a node-specific configuration file for host1
and copy it to the mapr.configuration volume:
Edit the mapred-site.xml configuration file in
/tmp (or you could copy the default version into
/tmp again and edit that) and create the
node-specific configuration file for host1.
Create the directories required to store the file under
/var/mapr/configuration/nodes: