**Comment from Launchpad by: Launchpad Janitor on: 27-11-2017 04:17:33

[Expired for Percona Server because there has been no activity for 60 days.]

**Comment from Launchpad by: Mischa ter Smitten on: 27-09-2017 12:42:54

Multiple mysql processes indeed, that shouldn't be possible right?

Is service mysql stop non-blocking (since 5.7)?

**Comment from Launchpad by: Mischa ter Smitten on: 27-09-2017 12:38:02

root@ansible-percona-server-ubuntu-1404:~# service mysql stop

• Percona Server 5.7.19-17 is already stopped
  root@ansible-percona-server-ubuntu-1404:~# ps auxww | grep mysql
  mysql 12304 0.0 0.0 4452 8 ? S 12:23 0:00 /bin/sh /usr/bin/mysqld_safe
  mysql 12560 0.2 0.6 1124204 1608 ? Sl 12:23 0:01 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --log-error=/var/log/mysql/error.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306

**Comment from Launchpad by: Hrvoje Matijakovic on: 27-09-2017 12:23:38

Can you try running:

service mysql stop

and then:

ps auxww | grep mysql

to make sure that service isn't running anymore, before trying to start the service again. It looks that you have two mysql processes running.

**Comment from Launchpad by: Hrvoje Matijakovic on: 27-09-2017 09:48:59

I've just noticed that you've provided tests for two different distros. But again checking the error log would probably provide more information why the service is failing to start.

root@wheezy:~# service mysql restart
Stopping Percona Server 5.7.19-17.
...
Percona Server 5.7.19-17 is stopped.
Re-starting Percona Server 5.7.19-17.
root@wheezy:~# service mysql status
Percona Server 5.7.19-17 is running.
root@wheezy:~# ps auxww | grep mysql
mysql 5513 0.0 0.0 4184 728 ? S 09:46 0:00 /bin/sh /usr/bin/mysqld_safe
mysql 5762 13.6 13.4 592572 138040 ? Sl 09:46 0:01 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --log-error=/var/log/mysql/error.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306
root 5816 0.0 0.0 7836 884 pts/0 S+ 09:46 0:00 grep mysql

root@wheezy:~# service mysql stop
....
Percona Server 5.7.19-17 is stopped.
root@wheezy:~# service mysql status
Percona Server 5.7.19-17 is not running.
root@wheezy:~# service mysql start
root@wheezy:~# service mysql status
Percona Server 5.7.19-17 is running.