Comment 13 for bug 1582116

Release-Note:
systemd has a new feature where it automatically cleans up file based on configuration. More is described in
man tmpfiles.d
man systemd-tmpfiles
With this it is possible that the unix domain socket files that are created in /tmp by various contrail supervisord processes will get deleted and commands like 'service supervisor-analytics ...' or 'service contrail-collector ...' etc will not work.

Workaround:
Make sure the /tmp/supervisord_*.sock files are excluded in the tmpfiles.d configuration files.