What is the difference between
SHOW /*!50000 GLOBAL */ STATUS
SHOW GLOBAL STATUS
I saw that in few scripts and tuning presentations the first command is being used. Is there a difference, If there is, what does the 50000 signify ?
Also, this seems to be a good script : https://raw.github.com/rackerhacker/MySQLTuner-perl/master/mysqltuner.pl Are there any similar scripts that list important stats and display recommendations