Hi *, I have a quick question, last year we migrated our OpenStack to a highly available environment through a reinstall of all nodes. The migration went quite well, we're working happily in the new cloud but the databases still contain deprecated data. For example, the nova-scheduler logs lines like these on a regular basis: /var/log/nova/nova-scheduler.log:2021-02-19 12:02:46.439 23540 WARNING nova.scheduler.host_manager [...] No compute service record found for host compute1 This is one of the old compute nodes that has been reinstalled and is now compute01. I tried to find the right spot to delete some lines in the DB but there are a couple of places so I wanted to check and ask you for some insights. The scheduler messages seem to originate in /usr/lib/python3.6/site-packages/nova/scheduler/host_manager.py ---snip--- for cell_uuid, computes in compute_nodes.items(): for compute in computes: service = services.get(compute.host) if not service: LOG.warning( "No compute service record found for host %(host)s", {'host': compute.host}) continue ---snip--- So I figured it could be this table in the nova DB: ---snip--- MariaDB [nova]> select host,deleted from compute_nodes; +-----------+---------+ | host | deleted | +-----------+---------+ | compute01 | 0 | | compute02 | 0 | | compute03 | 0 | | compute04 | 0 | | compute05 | 0 | | compute1 | 0 | | compute2 | 0 | | compute3 | 0 | | compute4 | 0 | +-----------+---------+ ---snip--- What would be the best approach here to clean up a little? I believe it would be safe to simply purge those lines containing the old compute node, but there might be a smoother way. Or maybe there are more places to purge old data from? I'd appreciate any ideas. Regards, Eugen