We are in the process of switching from mysql 5.5 to percona 5.6 on ubuntu 12.04. When I try to stop mysqld using the init.d script, it appears that mysqld_safe is not stopped and so it restarts mysqld.
I google’d for similar problems but have only found messages from 2010 and none are relevant. I have looked through the init.d script and it does not appear that there is ever an attempt to kill mysqld_safe. I have also looked for a setting in mysqld_safe to disable restarting mysqld but I have not been able to find anything.