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How to remove a Compute Node from Juno release [closed]

asked 2015-10-21 15:42:26 -0500

Dickson gravatar image

Hi :

My Openstack Cluster have 16 compute nodes and I need to scale down the size to use the hardware for other purpose so I need to remove some compute node servers. Did anyone know how to remove a Compute Node from Juno release?

Regards Dickson

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Closed for the following reason the question is answered, right answer was accepted by Dickson
close date 2015-10-27 18:50:35.946450

2 answers

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answered 2015-10-24 03:07:39 -0500

wangrich gravatar image

If you want the service records to be removed from the controller after you have done the migration, you can use nova service-delete <id> on the controller host, where <id> can be found from nova service-list.

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I first use nova-manage service disable --host hostname --service nova-compute. Then nova service-delete <id>. This will solve my problem. Thanks.

Dickson gravatar imageDickson ( 2015-10-27 18:46:53 -0500 )edit

answered 2015-10-23 23:56:29 -0500

You migrate its instances to different hosts, then just shut it down and remove it. OpenStack will cope with the loss.

Further reading: Operations Guide.

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Bernd, the key is how long for controller to automatically delete that shut-down service. I've waited for 10 mins, so ,....give up , issue the command above instead.

evan gravatar imageevan ( 2016-02-18 03:07:49 -0500 )edit

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Asked: 2015-10-21 15:42:26 -0500

Seen: 5,715 times

Last updated: Oct 24 '15