question Re: how to exclude new data node machines from the cluster even they are up in Support Questions

how to exclude new data node machines from the cluster even they are up

mike_bronson7 — Mon, 06 Jul 2020 10:36:44 GMT

hi all

we have HDP 2.6.4 cluster with 365 data-nodes ( workers machines )

we intend to add to this cluster 67 new data-nodes ,

but for now these new data-nodes should not be active , in spite the Linux OS is up and machine is up

so is it possible to disable HDFS and YARN on these new machines?

what is the preferred way?

for example - decommission ? , or just maintenance mode? or maybe both them?

the target is to avoid from spark jobs to run on the new data-nodes machines and disable the HDFS Temporarily

GangWar — Mon, 20 Jul 2020 08:45:20 GMT

@mike_bronson7 The similar discussion happened on one of other Community thread by @Shelton You can follow this here:

Also the decommissioning is more suitable approach you can see this doc more more details though: