Scenario

In the following example, you have a cluster with eight nodes, and five of them (host1, host2, host3, host4, and host5) are running the TaskTracker service.

You want to create one customized configuration file (mapred-site.xml) that applies to host2 through host5 and assign a different customized configuration file to host1.

Hostname	Customized Configuration Files
host1	`/var/mapr/configuration/nodes/host1/hadoop/hadoop-0.20.2/conf/mapred-site.xml`
host2	`/var/mapr/configuration/default/hadoop/hadoop-0.20.2/conf/mapred-site.xml`
host3	`/var/mapr/configuration/default/hadoop/hadoop-0.20.2/conf/mapred-site.xml`
host4	`/var/mapr/configuration/default/hadoop/hadoop-0.20.2/conf/mapred-site.xml`
host5	`/var/mapr/configuration/default/hadoop/hadoop-0.20.2/conf/mapred-site.xml`
host6	Not applicable. No customized configuration files are used.
host7	Not applicable. No customized configuration files are used.
host8	Not applicable. No customized configuration files are used.

WARNING:

Do not change the name of the new configuration file - it must match the name of the original version.