Is there something holding a lock that makes this slower when on NFS? You could try getting a GMR:
https://docs.openstack.org/nova/latest/admin/support-compute.html#guru-meditation-reports
To see what is going on in threads when this timeout occurs.
Otherwise is it just a matter of pulling in and processing all instances rather than just the ones on a given compute service host?
Is there something holding a lock that makes this slower when on NFS? You could try getting a GMR:
https:/ /docs.openstack .org/nova/ latest/ admin/support- compute. html#guru- meditation- reports
To see what is going on in threads when this timeout occurs.
Otherwise is it just a matter of pulling in and processing all instances rather than just the ones on a given compute service host?