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[ChristianEhrhardt <1583503@xxxxxxxxxxxxxxxxxx>]

Cleaning this after a while, no further action is needed.
- T/X have a workaround in Neutron
- Latter versions of keepalive use systemd MAINPID tracking which is somewhat more robust in this regard

That said in the context this appeared it is fixed, lets set the old
tasks to Won't Fix unless there is a real need.

** Changed in: keepalived (Ubuntu Xenial)
       Status: Incomplete => Won't Fix

** Changed in: keepalived (Ubuntu Trusty)
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/1583503

Title:
  keepalived fails to start when PID file is empty

Status in neutron:
  Fix Released
Status in keepalived package in Ubuntu:
  Fix Released
Status in keepalived source package in Trusty:
  Won't Fix
Status in keepalived source package in Xenial:
  Won't Fix

Bug description:
  After a crash of a network node, we were left with empty PID files for
  some keepalived processes:

   root@network-node14:~# ls -l /var/lib/neutron/ha_confs/0ab5f647-1e04-4345-ae9b-ee66c6f08882.pid
  -rw-r--r-- 1 root root 0 May 19 08:41 /var/lib/neutron/ha_confs/0ab5f647-1e04-4345-ae9b-ee66c6f08882.pid

  This causes the L3 agent to log the following errors repeating every
  minute:

  2016-05-19 08:46:44.525 13554 ERROR neutron.agent.linux.utils [-] Unable to convert value in /var/lib/neutron/ha_confs/0ab5f647-1e04-4345-ae9b-ee66c6f08882.pid
  2016-05-19 08:46:44.526 13554 ERROR neutron.agent.linux.external_process [-] keepalived for router with uuid 0ab5f647-1e04-4345-ae9b-ee66c6f08882 not found. The process should not have died
  2016-05-19 08:46:44.526 13554 WARNING neutron.agent.linux.external_process [-] Respawning keepalived for uuid 0ab5f647-1e04-4345-ae9b-ee66c6f08882
  2016-05-19 08:46:44.526 13554 ERROR neutron.agent.linux.utils [-] Unable to convert value in /var/lib/neutron/ha_confs/0ab5f647-1e04-4345-ae9b-ee66c6f08882.pid
  2016-05-19 08:46:44.526 13554 ERROR neutron.agent.linux.utils [-] Unable to convert value in /var/lib/neutron/ha_confs/0ab5f647-1e04-4345-ae9b-ee66c6f08882.pid-vrrp

  and the keepalived process fails to start. As a result, the routers
  hosted by this agent are non-functional.

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