From the log, three vms evacuate to other compute node, and the rest vms still remain on this compute node and reboot when nova-compute start again.
IMO the compute node meeted host failure. You can dig it out from system log.
Did you enabled HA(Masakari)?
Did the compute host power reset or reboot?
Did the host system crash?
...
More clue helps.
发件人: Karera Tony <tonykarera@gmail.com>
发送时间: 2024年1月26日 16:04
收件人: openstack-discuss <openstack-discuss@lists.openstack.org>
主题: VMs shut themselves down
Hello Team,
I have an openstack environment with 4 compute Nodes however yesterday out of the blue, the Instances on one of the compute nodes started shutting themselves down.
Then I realized the the compute service was disabled when I checked in Horizon. I enabled it and restarted the instances and all was well but I cant figure out what caused it.
I have attached the nova_compute logs here incase someone would like to support
Regards
Tony Karera