Prerequisites

• At least 2 hosts in the cluster where YARN is not present on 1 host
• HDP 2.0+
• YARN Installed

Assumptions

Installing ResourceManager

1. Stop all services except for HDFS.
   1. Using the Ambari web client to manually stop each service.
   2. Using the Ambari REST APIs directly. For this method, you can consult the documentation on starting and stopping services.
      
      

2. Install ResourceManager manually on a host that does not already have ResourceManager installed.

   Code Block
   curl -u admin:$PASSWORD -H "X-Requested-By: Ambari" -i -X POST -d '{"host_components" : [{"HostRoles":{"component_name":"RESOURCEMANAGER"}}] }' http://<ambari_server>:8080/api/v1/clusters/<cluster_name>/hosts?Hosts/host_name=<target_host>