[Openstack] How to decommission a compute node

Greg Chavez greg.chavez at gmail.com
Tue Apr 30 18:39:40 UTC 2013


I'm just getting up and running with Folsom on Ubuntu 12.10.  Of two
compute nodes I have running, one of them died (some kind of grub
corruption).  So my next step is to re-kick it, but I don't know how to
remove the compute node from Nova.  I can do this:

root at kcon-gen-01i:~# nova-manage service disable --host=kvm-sn-10i
--service=nova-compute
root at kcon-gen-01i:~# nova-manage service list
Binary           Host                                 Zone
Status     State Updated_At
nova-cert        kcon-gen-01i                      nova             enabled
   :-)   2013-04-30 18:32:56
nova-consoleauth kcon-gen-01i                      nova             enabled
   :-)   2013-04-30 18:32:56
nova-scheduler   kcon-gen-01i                      nova             enabled
   :-)   2013-04-30 18:32:52
nova-compute     kvm-sn-10i                        nova
disabled   :-)   2013-04-30 18:32:54
nova-compute     kvm-sn-14i                        nova             enabled
   :-)   2013-04-30 18:32:55

But the host itself is still there!

root at kcon-gen-01i:~# nova-manage host list | sed 's/cs-//'
host                     zone
kcon-gen-01i           nova
kvm-sn-10i             nova
kvm-sn-14i             nova

My concern is that when I bring kvm-sn-10i back to life, my controller node
won't be able to authorize it.

So what is the proper way to delete/remove/decommission a compute node?

Thanks.
-- 
\*..+.-
--Greg Chavez
+//..;};
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