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Prerequisites

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

Assumptions

PlaceholderDescriptionExample
ambari_serverThe server running the Ambari web clientc6401.ambari.apache.org:8080
cluster_nameThe name of the clustercluster1
target_hostThe host that will have the additional ResourceManagerc6402.ambari.apache.org

 

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. Add a ResourceManager component to YARN on a host that does not already have ResourceManager installed. This will not actually install ResourceManager, but will setup the host component associations.

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

  3. Install ResourceManager on the same target_host used in the previous step.

    curl -u admin:$PASSWORD -H "X-Requested-By: Ambari" -i -X PUT -d '{"RequestInfo":{"context":"Install ResourceManager","operation_level":{"level":"HOST_COMPONENT","cluster_name":"<cluster_name>","host_name":"<target_host>","service_name":"YARN"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}' http://<ambari_server>/api/v1/clusters/<cluster_name>/hosts/<target_host>/host_components/RESOURCEMANAGER

YARN Configuration

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