Open Stack

Hello OpenStack-Discuss,

I was wondering how I as an admin can (live-)migrate instances for which 
the user applied a server-group with affinity.
Looking at the API ([1]), there is no (obvious) way to migrate multiple 
instances or a server-group "en bloc".

But migrating a single instance out of a group does result in:

> [...]
> 2023-06-01 12:20:00.489 6910 INFO nova.scheduler.host_manager 
> [req-01d9 83eb5 9c8353142098 - default default] Host filter ignoring 
> hosts:
> 2023-06-01 12:20:00.490 6910 INFO nova.filters [req-01d9 83eb5 
> 9c8353142098 - default default] Filter ServerGroupAffinityFilter 
> returned 0 hosts
> 2023-06-01 12:20:00.491 6910 INFO nova.filters [req-01d9 83eb5 
> 9c8353142098 - default default] Filtering removed all hosts for the 
> request with instance ID '2476cfdd-9315-4bff-ba3e-d3be5874593f'. 
> Filter results: ['AvailabilityZoneFilter: (start: 10, end: 10)', 
> 'ComputeFilter: (start: 10, end: 10)', 'ComputeCapabilitiesFilter: 
> (start: 10, end: 9)', 'ImagePropertiesFilter: (start: 9, end: 9)', 
> 'ServerGroupAntiAffinityFilter: (start: 9, end: 9)', 
> 'ServerGroupAffinityFilter: (start: 9, end: 0)']
> [...] 

Am I missing something here? Or am I just holding this wrong?



Regards

Christian



[1] 
https://docs.openstack.org/api-ref/compute/?expanded=force-migration-complete-action-force-complete-action-detail#live-migrate-server-os-migratelive-action