Comment 3 for bug 1826886

Rebooting was not invoked before this cinder CMD failure.

10 mins before the failure happened:
[2019-05-01 08:22:37,006 to [2019-05-01 08:28:01,851, running test_ping_between_two_vms TC
test steps:
- Create a favor
- Create a volume
- Boot 2 VMs, then ping

[2019-05-01 08:29:27,306 TC test_reboot_only_host started

[2019-05-01 08:29:42,583] 262 DEBUG MainThread ssh.send :: Send 'nova --os-username 'admin' --os-password 'Li69nux*' --os-project-name admin --os-auth-url http://keystone.openstack.svc.cluster.local/v3 --os-user-domain-name Default --os-project-domain-name Default --os-endpoint-type internalURL --os-region-name RegionOne quota-update --cores 20 --instances 10 55d4101913c14204a98450ac7c3b09e8'

[2019-05-01 08:29:49,839] 262 DEBUG MainThread ssh.send :: Send 'cinder --os-username 'admin' --os-password 'Li69nux*' --os-project-name admin --os-auth-url http://keystone.openstack.svc.cluster.local/v3 --os-user-domain-name Default --os-project-domain-name Default --os-endpoint-type internalURL --os_region_name RegionOne quota-update --volumes 20 55d4101913c14204a98450ac7c3b09e8'

[2019-05-01 08:30:05,371] 262 DEBUG MainThread ssh.send :: Send 'nova --os-username 'admin' --os-password 'Li69nux*' --os-project-name admin --os-auth-url http://keystone.openstack.svc.cluster.local/v3 --os-user-domain-name Default --os-project-domain-name Default --os-endpoint-type internalURL --os-region-name RegionOne flavor-create --ephemeral 1 --swap 512 flv_ephemswap auto 1024 2 1'

[2019-05-01 08:30:16,901] 262 DEBUG MainThread ssh.send :: Send 'cinder --os-username 'admin' --os-password 'Li69nux*' --os-project-name admin --os-auth-url http://keystone.openstack.svc.cluster.local/v3 --os-user-domain-name Default --os-project-domain-name Default --os-endpoint-type internalURL --os_region_name RegionOne list --all-tenants'

[2019-05-01 08:30:20,576] cinder create: Failed to establish a new connection: [Errno 110] Connection timed out',))