Comment 17 for bug 1885430

---> Installed version

root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# dpkg -l |grep -i ceilometer
ii ceilometer-agent-compute 1:12.1.1-0ubuntu1~cloud1 all ceilometer compute agent
ii ceilometer-common 1:12.1.1-0ubuntu1~cloud1 all ceilometer common files
ii python3-ceilometer 1:12.1.1-0ubuntu1~cloud1 all ceilometer python libraries

Run through 2 cases

1) Service restart
2) Reboot

---> Service restart case

root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status ceilometer-agent-compute
● ceilometer-agent-compute.service - Ceilometer Agent Compute
   Loaded: loaded (/lib/systemd/system/ceilometer-agent-compute.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-03-18 21:20:01 UTC; 2min 35s ago
 Main PID: 27650 (ceilometer-poll)
    Tasks: 6 (limit: 4702)
   CGroup: /system.slice/ceilometer-agent-compute.service
           ├─27650 ceilometer-polling: master process [/usr/bin/ceilometer-polling --config-file=/etc/ceilometer/ceilometer.conf --polling-namespaces compute --log-file=/var/log/cei
           └─27735 ceilometer-polling: AgentManager worker(0)

Mar 18 21:20:01 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Stopped Ceilometer Agent Compute.
Mar 18 21:20:01 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started Ceilometer Agent Compute.
Mar 18 21:20:03 juju-bf8c6a-lm-ceilometer-7 ceilometer-agent-compute[27650]: Deprecated: Option "logdir" from group "DEFAULT" is deprecated. Use option "log-dir" from group "DEFAULT
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status nova-compute
● nova-compute.service - OpenStack Compute
   Loaded: loaded (/lib/systemd/system/nova-compute.service; disabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-03-18 18:46:56 UTC; 2h 35min ago
 Main PID: 2199 (nova-compute)
    Tasks: 22 (limit: 4702)
   CGroup: /system.slice/nova-compute.service
           └─2199 /usr/bin/python3 /usr/bin/nova-compute --config-file=/etc/nova/nova.conf --config-file=/etc/nova/nova-compute.conf --log-file=/var/log/nova/nova-compute.log

Mar 18 18:46:56 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started OpenStack Compute.

--

root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl stop nova-compute
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl disable nova-compute.service
Synchronizing state of nova-compute.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install disable nova-compute
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status nova-compute
● nova-compute.service - OpenStack Compute
   Loaded: loaded (/lib/systemd/system/nova-compute.service; disabled; vendor preset: enabled)
   Active: inactive (dead) since Thu 2021-03-18 21:23:30 UTC; 7s ago
 Main PID: 2199 (code=exited, status=0/SUCCESS)

Mar 18 18:46:56 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started OpenStack Compute.
Mar 18 21:23:24 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Stopping OpenStack Compute...
Mar 18 21:23:30 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Stopped OpenStack Compute.
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu#

root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status ceilometer-agent-compute
● ceilometer-agent-compute.service - Ceilometer Agent Compute
   Loaded: loaded (/lib/systemd/system/ceilometer-agent-compute.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Thu 2021-03-18 21:23:24 UTC; 29s ago
 Main PID: 761 (code=exited, status=0/SUCCESS)

Mar 18 21:23:13 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started Ceilometer Agent Compute.
Mar 18 21:23:14 juju-bf8c6a-lm-ceilometer-7 ceilometer-agent-compute[761]: Deprecated: Option "logdir" from group "DEFAULT" is deprecated. Use option "log-dir" from group "DEFAULT".
Mar 18 21:23:24 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Stopping Ceilometer Agent Compute...
Mar 18 21:23:24 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Stopped Ceilometer Agent Compute.

root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# /etc/init.d/ceilometer-agent-compute restart
[ ok ] Restarting ceilometer-agent-compute (via systemctl): ceilometer-agent-compute.service.
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status ceilometer-agent-compute
● ceilometer-agent-compute.service - Ceilometer Agent Compute
   Loaded: loaded (/lib/systemd/system/ceilometer-agent-compute.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-03-18 21:24:13 UTC; 2s ago
 Main PID: 1549 (ceilometer-poll)
    Tasks: 6 (limit: 4702)
   CGroup: /system.slice/ceilometer-agent-compute.service
           ├─1549 ceilometer-polling: master process [/usr/bin/ceilometer-polling --config-file=/etc/ceilometer/ceilometer.conf --polling-namespaces compute --log-file=/var/log/ceil
           └─1604 ceilometer-polling: AgentManager worker(0)

Mar 18 21:24:13 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started Ceilometer Agent Compute.
Mar 18 21:24:14 juju-bf8c6a-lm-ceilometer-7 ceilometer-agent-compute[1549]: Deprecated: Option "logdir" from group "DEFAULT" is deprecated. Use option "log-dir" from group "DEFAULT"
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status nova-compute
● nova-compute.service - OpenStack Compute
   Loaded: loaded (/lib/systemd/system/nova-compute.service; disabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-03-18 21:24:13 UTC; 6s ago
 Main PID: 1548 (nova-compute)
    Tasks: 22 (limit: 4702)
   CGroup: /system.slice/nova-compute.service
           └─1548 /usr/bin/python3 /usr/bin/nova-compute --config-file=/etc/nova/nova.conf --config-file=/etc/nova/nova-compute.conf --log-file=/var/log/nova/nova-compute.log

Mar 18 21:24:13 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started OpenStack Compute.

---> Reboot testing

root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl disable nova-compute.service
Synchronizing state of nova-compute.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install disable nova-compute
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl stop nova-compute
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# reboot

root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# uptime
 21:25:44 up 0 min, 1 user, load average: 1.60, 0.38, 0.13
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status nova-compute
● nova-compute.service - OpenStack Compute
   Loaded: loaded (/lib/systemd/system/nova-compute.service; disabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-03-18 21:25:32 UTC; 13s ago
 Main PID: 3099 (nova-compute)
    Tasks: 22 (limit: 4702)
   CGroup: /system.slice/nova-compute.service
           └─3099 /usr/bin/python3 /usr/bin/nova-compute --config-file=/etc/nova/nova.conf --config-file=/etc/nova/nova-compute.conf --log-file=/var/log/nova/nova-compute.log

Mar 18 21:25:32 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started OpenStack Compute.
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu# systemctl status ceilometer-agent-compute
● ceilometer-agent-compute.service - Ceilometer Agent Compute
   Loaded: loaded (/lib/systemd/system/ceilometer-agent-compute.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-03-18 21:25:32 UTC; 15s ago
 Main PID: 3100 (ceilometer-poll)
    Tasks: 6 (limit: 4702)
   CGroup: /system.slice/ceilometer-agent-compute.service
           ├─3100 ceilometer-polling: master process [/usr/bin/ceilometer-polling --config-file=/etc/ceilometer/ceilometer.conf --polling-namespaces compute --log-file=/var/log/ceil
           └─3229 ceilometer-polling: AgentManager worker(0)

Mar 18 21:25:32 juju-bf8c6a-lm-ceilometer-7 systemd[1]: Started Ceilometer Agent Compute.
Mar 18 21:25:35 juju-bf8c6a-lm-ceilometer-7 ceilometer-agent-compute[3100]: Deprecated: Option "logdir" from group "DEFAULT" is deprecated. Use option "log-dir" from group "DEFAULT"
root@juju-bf8c6a-lm-ceilometer-7:/home/ubuntu#