Scenario

Lists an example scenario to demonstrate customized configuration for a 8-node cluster.

In the following example, you have a cluster with eight nodes, and five of them (host1, host2, host3, host4, and host5) are running the NodeManager 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-2.7.0/etc/hadoop/mapred-site.xml

host2

/var/mapr/configuration/default/hadoop/hadoop-2.7.0/etc/hadoop/mapred-site.xml

host3

/var/mapr/configuration/default/hadoop/hadoop-2.7.0/etc/hadoop/mapred-site.xml

host4

/var/mapr/configuration/default/hadoop/hadoop-2.7.0/etc/hadoop/mapred-site.xml

host5

/var/mapr/configuration/default/hadoop/hadoop-2.7.0/etc/hadoop/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.