question Re: Maintenance approach for worker / data node in Support Questions

Maintenance approach for worker / data node

Amn_468 — Fri, 17 Jul 2020 07:44:53 GMT

Hello,

I need to reboot my Data node to fix an underlying network issue. OS team needs around 3 hours (approx.) to complete this activity, what would be the best approach:

Decommission and recommission host / dn.
Move DN to Offline Mode (feature in CM 5.16.x)

Any help / guidance is appreciated.

Regards

Amn

Re: Maintenance approach for worker / data node

GangWar — Fri, 17 Jul 2020 11:07:32 GMT

@Amn_468 Your approach looks fine. You can always follow the recommendations while doing maintenance of cluster by referring below doc which is very informative.

https://docs.cloudera.com/documentation/enterprise/5-14-x/topics/cm_mc_host_maint.html

Re: Maintenance approach for worker / data node

Amn_468 — Sun, 19 Jul 2020 10:07:56 GMT

Hi @GangWar

Thanks for your reply.