supervisor does not stop mysqld #52
Description
When I tell supervisor to stop the mysql service, it claims that it did, but it does not:
supervisor> stop mysql
mysql: stopped
supervisor> exit
bash-4.3# ps -ef | grep -i mysql
62445 mysql 0:26 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --user=mysql --log-error=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/lib/mysql/mysql.sock
It then fails to start it (since it was never stopped):
bash-4.3# supervisorctl start mysql
mysql: ERROR (abnormal termination)
The mysqld log files shows that it cannot start if its already running:
bash-4.3# tail -f /var/log/mysqld.log
150409 22:31:53 mysqld_safe A mysqld process already exists
150409 22:31:54 mysqld_safe Logging to '/var/log/mysqld.log'.
150409 22:31:54 mysqld_safe A mysqld process already exists
150409 22:31:54 mysqld_safe A mysqld process already exists
150409 22:31:56 mysqld_safe Logging to '/var/log/mysqld.log'.
150409 22:31:56 mysqld_safe A mysqld process already exists
150409 22:31:56 mysqld_safe A mysqld process already exists
150409 22:31:59 mysqld_safe Logging to '/var/log/mysqld.log'.
150409 22:31:59 mysqld_safe A mysqld process already exists
150409 22:31:59 mysqld_safe A mysqld process already exists
If I kill mysqld then supervisor is able to start it:
bash-4.3# kill -9 62445
bash-4.3# supervisorctl start mysql
mysql: started
bash-4.3# supervisorctl status
httpd RUNNING pid 61645, uptime 0:12:37
map RUNNING pid 62468, uptime 0:12:04
mysql RUNNING pid 63350, uptime 0:00:07
sshd RUNNING pid 61646, uptime 0:12:37