Attempts to perform a live migration of an instance fail with an error similar to the below on the source host.
ERROR nova.compute.manager Pre live migration failed at fea5e264-bfb1-40cd-b1f0-d247845071af
TRACE nova.compute.manager MessagingTimeout: Timed out waiting for a reply to message ID f1e35e10f7c445e3810a115dc3204a24
- Platform9 Managed OpenStack - All Versions
- Volume-Backed Storage
Attempting a live migration of an instance with multiple attached volumes may fail pre-migration checks due to an RPC timeout.
- Increase the default RPC timeout of 60 seconds using an override in /opt/pf9/etc/nova/conf.d/nova_override.conf, as shown here.
rpc_response_timeout = 120
- Restart the pf9-ostackhost service.
# systemctl restart pf9-ostackhost
- Retry the migration operation and further increase the RPC timeout if necessary.
For more information on Nova configuration options, please refer to the following OpenStack documentation.