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Amn_468
Amn_468
Silver ⭐️⭐️⭐️
July 17, 2020
Solved

Maintenance approach for worker / data node

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:

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

Any help / guidance is appreciated.

 

Regards

Amn

GangWar
GangWarAnswer
Platinum ⭐️⭐️
July 17, 2020

@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

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2 replies

GangWar
Platinum ⭐️⭐️
GangWarAnswer
Platinum ⭐️⭐️
July 17, 2020

@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

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Cheers! Was your question answered? Make sure to mark the answer as the accepted solution. If you find a reply useful, say thanks by clicking on the thumbs up button.
    Amn_468
    Amn_468Author
    Silver ⭐️⭐️⭐️
    July 19, 2020

    Hi @GangWar 

     

    Thanks for your reply.

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