My mamp mysql server won't turn on. I tried executing /Applications/MAMP/bin/startMysql.sh but that gave me this error :
101110 05:50:31 mysqld_safe Logging to '/Applications/MAMP/logs/mysql_error_log.err'.
101110 05:50:32 mysqld_safe Starting mysqld daemon with databases from /Applications/MAMP/db/mysql
101110 05:50:32 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended
/Applications/MAMP/logs/mysql_error_log.err :
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/operating-system-error-codes.html
InnoDB: Could not open or create data files.
InnoDB: If you tried to add new data files, and it failed here,
InnoDB: you should now edit innodb_data_file_path in my.cnf back
InnoDB: to what it was, and remove the new ibdata files InnoDB created
InnoDB: in this failed attempt. InnoDB only wrote those files full of
InnoDB: zeros, but did not yet use them in any way. But be careful: do not
InnoDB: remove old data files which contain your precious data!
101110 5:53:08 [ERROR] Plugin 'InnoDB' init function returned error.
101110 5:53:08 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
101110 5:53:08 [ERROR] Can't start server: Bind on TCP/IP port: Address already in use
101110 5:53:08 [ERROR] Do you already have another mysqld server running on port: 3306 ?
101110 5:53:08 [ERROR] Aborting
101110 5:53:08 [Warning] Forcing shutdown of 2 plugins
101110 5:53:08 [Note] /Applications/MAMP/Library/libexec/mysqld: Shutdown complete
101110 05:53:08 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended
Well I'm glad for you it fixed itself on its own ;)
From the look of your error file, it looks like you already had an instance of MySQL running... Not sure if this works on a mac, but you could try :
pidof mysqld
If this outputs something (one or several numbers), then MySQL is running. If the output is empty, then it is not.