5.8. Completing the migration
After you migrate one or more instances, you need to re-enable the source Compute nodes from the undercloud to ensure that the scheduler can assign new instances to the source Compute node. For migrated instances that use DPDK, you must also re-enable the destination Compute node from the undercloud.
Procedure
Re-enable the source Compute node:
(overcloud)$ source ~/stackrc (undercloud)$ openstack compute service set <source> nova-compute --enable
Replace
<source>with the host name of the source Compute node.Optional: For instances that use DPDK, re-enable the destination Compute node from the undercloud:
(undercloud)$ openstack compute service set <dest> nova-compute --enable
Replace
<dest>with the host name of the destination Compute node.
