mysql process cannot be stopped
I have recently installed 5.5.28-29.2 Percona Server (GPL), Release 29.2 in a Ubuntu 12.04 OS Desktop. I have tried to stop the server using different methods:
- sudo /etc/init.d/mysql stop
- sudo kill -9 pid
- mysqladmin -u root -p shutdown
All this methods stop the process, however it starts up automatically after it dies. I have checked syslog (/var/log/syslog/) and always shows me the next trace:
Jan 4 17:50:44 kernel: [ 1915.494219] init: mysql main process (17311) killed by KILL signal
Jan 4 17:50:44 kernel: [ 1915.494245] init: mysql main process ended, respawning
Jan 4 17:50:44 kernel: [ 1915.500025] type=1400 audit(1357318244.557:48): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=18458 comm="apparmor_parser"
Jan 4 17:50:46 /etc/mysql/debian-start[18501]: Upgrading MySQL tables if necessary.
Jan 4 17:50:46 /etc/mysql/debian-start[18504]: /usr/bin/mysql_upgrade: the '--basedir' option is always ignored
Jan 4 17:50:46 /etc/mysql/debian-start[18504]: Looking for 'mysql' as: /usr/bin/mysql
Jan 4 17:50:46 /etc/mysql/debian-start[18504]: Looking for 'mysqlcheck' as: /usr/bin/mysqlcheck
Jan 4 17:50:46 /etc/mysql/debian-start[18504]: This installation of MySQL is already upgraded to 5.5.28, use --force if you still need to run mysql_upgrade
Jan 4 17:50:46 /etc/mysql/debian-start[18515]: Checking for insecure root accounts.
Jan 4 17:50:46 /etc/mysql/debian-start[18520]: Triggering myisam-recover for all MyISAM tables
Do you know the reason why the process restarts automatically ? Thank you in advance!!
Answer
I was having this exact same problem. Running the kill command would kill the process, but in my case it would keep popping up again under a different process ID.
The only way I could figure out how to stop it for good was this:
sudo stop mysql
Hope that helps.
Source: http://www.itfromscratch.com/how-to-stop-the-percona-mysql-server/