Comment 2 for bug 1719817

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.