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[Abhishek Kekane <abhishek.kekane@xxxxxxxxxxx>]

nova-compute is using ServiceLauncher to launch the service which
doesn't require any changes to exit gracefully.

** Changed in: nova
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1702260

Title:
  nova compute child process remains orphan after sending sigkill or
  sigterm signal to parent process

Status in OpenStack Compute (nova):
  Invalid

Bug description:
  When user sends SIGKILL (kill -9) or SIGTERM (kill -15) signal to
  nova-comupte parent process then parent process terminates immediately
  but child process keeps running forever and keeps processing the
  requests received from rabbitmq.

  Steps to reproduce:

  1. Identify running processes of nova-compute using "ps aux | grep nova-compute'
  2. Send kill or terminate signal to parent process.
     $ kill -9 <nova-compute-parent-process-id> or kill -15 <nova-compute-parent-process-id>
  3. Verify parent process is killed using "ps aux | grep nova-compute'

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