** Attachment added: "stop-start-bad.txt"
   
https://bugs.launchpad.net/ubuntu/+source/ovn/+bug/1913736/+attachment/5458061/+files/stop-start-bad.txt

** Description changed:

  I noticed this issue with the ovn-chassis charm's pause/resume tests
  failing. Pause will stop the ovn-host service and the test will check if
  any ovn-controller pids exist after the stop, and in fact they did still
  exist.
  
- Stopping and starting ovn-host service is typically fine and the ovn-
- controller pids get cleaned up when stopped. For example:
+ Stopping and starting ovn-host service is fine if openvswitch-switch
+ hasn't been restarted. The ovn-controller pids get cleaned up when ovn-
+ host is stopped. For example:
  
  https://paste.ubuntu.com/p/gq9VXWN25y/
  The same details are in the attached stop-start-good.txt file.
  
  However, if openvswitch-switch is restarted prior to the stop/start of
  ovn-host, it seems to cause issues where ovn-controller pids don't get
  cleaned up. For example:
  
  https://paste.ubuntu.com/p/Tn6wzY7gWH/
  The same details are in the attached stop-start-bad.txt file.
  
  I haven't looked into it much but wondering if it may be an issue in the
  upstream utilities/ovn-ctl script.

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https://bugs.launchpad.net/bugs/1913736

Title:
  ovn-host service stop doesn't clean up all ovn-controller pids

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