Migrating ResourceManager to another host
You can move the YARN ResourceManager role from one host to another using Cloudera Manager.
Cloudera recommends to enable RecourceManager High Availability.
- In Cloudera Manager, select the YARN service.
 - Click Instance.
 - Find the ResourceManager role that you want to migrate to a new host and select it.
 - Select .
 - Select .
 - Click Add Role Instances.
 - Use the dropdown menu under ResourceManager to select a hosts for the new ResourceManager role.
 - Click Continue and then click Finish.
 - Select the newly created ResourceManager role.
 - Select and click Start.
 - Restart the YARN service.
 
