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What is MySQLTuner
MySQLTuner is a great little utility to tune up your MySQL instance to perform at it best.
Install MySQLTuner
yum -y install https://extras.getpagespeed.com/release-latest.rpm
yum -y install mysqltuner
Run MySQLTuner
Simply type mysqltuner and get overwhelmed with a list of tweak suggestions.
Our MySQLTuner package ships with basic_passwords.txt and vulnerabilities.csv, so when you run mysqltuner, it will report you whether your MySQL has any vulnerabilities or poor user passwords. If you’ve forgotten your MySQL root password and need to regain access, see how to reset the MySQL root password.
Schedule reports
You can get weekly suggestions (if any) for MySQLTuner by using mysqltuner-cron package:
yum -y install mysqltuner-cron
Then mysqltuner will be run every week and only if there are suggestions, they will be emailed to you by cron.
Small bonus, mysqlmemory
To reduce the memory footprint of MySQL, you can run mysqlmemory that is shipped with the package. More info about it here.