I would like to start logger but it won't start.

Here's what happened:

Code:
zimbra@server:/root$ zmcontrol status
Host server.homelinux.org
        ldap                    Running
        logger                  Stopped
                logmysql.server is not running
                zmlogswatchctl is not running
        mailbox                 Running
        mta                     Running
        snmp                    Running
        stats                   Running
zimbra@server:/root$ zmlog
zmloggerctl     zmlogswatchctl
zimbra@server:/root$ zmlogswatchctl start
Starting logswatch...done.
zimbra@server:/root$ zmloggerctl start
Starting mysqld...done.
Starting logswatch...logswatch is already running.
zimbra@server:/root$ zmcontrol status
Host server.homelinux.org
        ldap                    Running
        logger                  Stopped
                logmysql.server is not running
        mailbox                 Running
        mta                     Running
        snmp                    Running
        stats                   Running
zimbra@server:/root$ logmysql.server start
Starting mysqld...done.
zimbra@server:/root$ zmcontrol status
Host server.homelinux.org
        ldap                    Running
        logger                  Stopped
                logmysql.server is not running
        mailbox                 Running
        mta                     Running
        snmp                    Running
        stats                   Running
zimbra@server:/root$
i followed this wiki

Code:
zimbra@server:/root$ logmysql.server start
Starting mysqld...done.
zimbra@server:/root$ cat /opt/zimbra/logger/db/mysql.pid
cat: /opt/zimbra/logger/db/mysql.pid: No such file or directory
But there is no solution on the wiki.