Adding a Service to an Existing Node

The process of adding a service to a node is similar to the initial installation process for nodes. For further detail see Installing MapR Software.
  1. Install the package(s) corresponding to the new role(s) using apt-get or yum.
  2. Run with a list of the CLDB nodes and ZooKeeper nodes in the cluster.
  3. If you added the CLDB or ZooKeeper role, you must run on all other nodes in the cluster.
  4. If you added the fileserver role, run disksetup to format and prepare disks for use as storage.
  5. Restart Warden.
    % service mapr-warden restart
When Warden restarts, it picks up the new configuration and starts the new services, making them active in the cluster.