This guide explains how to disable a compute nodeĀ (so that no new instances will be scheduled on this node):

Step-by-step guide


openstack compute service set --disable <hostname> nova-compute


E.g.:

openstack compute service set --disable compute-01.cloud.pd.infn.it nova-compute 


To check:

openstack compute service list


To re-enable the compute node:

openstack compute service set --enable <hostname> nova-compute 


E.g.:

openstack compute service set --enable compute-01.cloud.pd.infn.it nova-compute



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