[Bug 1861321] Re: ceilometer-collector fails to stop if cannot connect to message broker

[Corey Bryant]

Output shared by Liam:

root at juju-8131f4-zaza-47146c245a52-7:~# ps -ef | grep ceilometer-collector
ceilome+ 13513     1  0 15:48 ?        00:00:01 /usr/bin/python /usr/bin/ceilometer-collector --log-file=/var/log/ceilometer/ceilometer-collector.log --config-file=/etc/ceilometer/ceilometer.conf
ceilome+ 13514     1  0 15:48 ?        00:00:01 /usr/bin/python /usr/bin/ceilometer-collector --log-file=/var/log/ceilometer/ceilometer-collector.log --config-file=/etc/ceilometer/ceilometer.conf
ceilome+ 15813     1  0 15:48 ?        00:00:03 /usr/bin/python /usr/bin/ceilometer-collector --log-file=/var/log/ceilometer/ceilometer-collector.log --config-file=/etc/ceilometer/ceilometer.conf
ceilome+ 15814     1  0 15:48 ?        00:00:03 /usr/bin/python /usr/bin/ceilometer-collector --log-file=/var/log/ceilometer/ceilometer-collector.log --config-file=/etc/ceilometer/ceilometer.conf
ceilome+ 16523     1  1 17:07 ?        00:00:02 /usr/bin/python /usr/bin/ceilometer-collector --log-file=/var/log/ceilometer/ceilometer-collector.log --config-file=/etc/ceilometer/ceilometer.conf
ceilome+ 16640 16523  0 17:07 ?        00:00:00 /usr/bin/python /usr/bin/ceilometer-collector --log-file=/var/log/ceilometer/ceilometer-collector.log --config-file=/etc/ceilometer/ceilometer.conf
ceilome+ 16641 16523  0 17:07 ?        00:00:00 /usr/bin/python /usr/bin/ceilometer-collector --log-file=/var/log/ceilometer/ceilometer-collector.log --config-file=/etc/ceilometer/ceilometer.conf

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https://bugs.launchpad.net/bugs/1861321

Title:
  ceilometer-collector fails to stop if cannot connect to message broker

Status in ceilometer package in Ubuntu:
  New

Bug description:
  ceilometer-collector fails to stop if it cannot connect to message
  broker.

  To reproduce (assuming amqp is running on localhost):
  1) Comment out the 'oslo_messaging_rabbit' section from /etc/ceilometer/ceilometer.conf. This will trigger ceilometer-collector to look locally for a rabbit connection
  2) Start ceilometer-collector 
  3) Observe errors like below in /var/log/ceilometer/ceilometer-collector.log

  2020-01-29 18:28:35.848 11808 ERROR
  oslo.messaging._drivers.impl_rabbit [-] AMQP server on 127.0.0.1:5672
  is unreachable: [Errno 111] Connection refused. Trying again in 32
  seconds.

  4) Stop ceilometer-collector 
  5) Check if ceilometer-collector processes have gone
     

  
  Getting ceilometer from the cloud archive mitaka pocket.

  # apt-cache policy ceilometer-collector
  ceilometer-collector:
    Installed: 1:6.1.5-0ubuntu1~cloud0
    Candidate: 1:6.1.5-0ubuntu1~cloud0
    Version table:
   *** 1:6.1.5-0ubuntu1~cloud0 0
          500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ trusty-updates/mitaka/main amd64 Packages
          100 /var/lib/dpkg/status
       2014.1.5-0ubuntu2 0
          500 http://nova.clouds.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
       2014.1.2-0ubuntu1.1 0
          500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
       2014.1-0ubuntu1 0
          500 http://nova.clouds.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

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