we have ambari and HDP 2.6.4 cluster with 245 workers machines
each worker have ( datanode component and resource manager component )
now we want to add 10 new workers machines to the cluster
but we want to disable the datanode machines so no HDFS data will transfer from the old datanodes to the new datanodes
I thinking to set maintenance mode on the new datanode ,
but not sure if this action is enough in order to disable the new datanodes machine on the new workers
so the target is to avoid replication of HDFS data from the old datanode to the new datanode
I will happy to get any advice about this