Posts: 6
Registered: ‎04-21-2016

Decommission Host / Balancer Role

Hi, we need to decommission a host that the HDFS "Balancer" role resides on.  I don't see a way to migrate that role in CM.  Will the decommission process automatically assign it to a different host?




Posts: 1,096
Topics: 1
Kudos: 278
Solutions: 132
Registered: ‎04-22-2014

Re: Decommission Host / Balancer Role

Hi @DataMike ,


I believe the following should work (decommissioning probably won't include adding the role to another host):



In CM, Navigate to HDFS --> Instances




Check the box next to the "balancer" role.




From the Actions for Selected drop-down, choose Delete




Add the role back by clicking the Add Role Instances button




In the wizard, chose the "balancer" role and select the host on which you want it to run

(complete the wizard)


I do not believe anything else would need to be done as the configuration for the balancer will be retained even without the role existing.