MySQL on Ubuntu Keeps Crashing

Question

I’ve got an Ubuntu 12.x Droplet running, and for some reason MySQL keeps crashing to where I need to go in and restart the process (‘sudo service mysql restart’).

I’m not even sure how to start debugging this - could anyone give me some guidance on how to start? My MySQL logs are empty in /var/log/

Thanks!

alexdo · Answer

Hello, What you can also do is to use the MySQLTuner script. The MySQLTuner is a script written in Perl and allows you to quickly test your MySQL configuration and it gives you suggestions for adjustments to increase performance and stability. According to the official GitHub page, it supports 300 indicators for MySQL/MariaDB/Percona Server in this last version. To run the script you could do the following: SSH to your Droplet Download the script: wget http://mysqltuner.pl/ -O mysqltuner.pl Then execute it: perl mysqltuner.pl The script would run multiple checks against your MySQL instance, all checks done by MySQLTuner are documented here . Also as stated in the official documentation, it is still extremely important for you to fully understand each change you make to a MySQL database server. If you don’t understand portions of the script’s output, or if you don’t understand the recommendations, you should consult a knowledgeable DBA or system administrator that you trust. As a good practice make sure to always test your changes on staging environments before implementing them on your production database. On the same note, if you want to have a worry-free MySQL hosting and focus on your application, I would recommend trying out the DigitalOcean Managed Databases: https://www.digitalocean.com/products/managed-databases-mysql/ This was mini tutorial was posted from bobbyiliev in this question in our community: https://www.digitalocean.com/community/questions/how-to-tweak-mysql-mariadb-configuration-for-increased-performance-and-stability Hope that this helps!Regards,Alex

d3a7f48c12e697d50c8a7ae7684644 · Answer

Had the same issue on the droplet of 512Mb RAM and solved it only by upgrading to 1Gb

vritzka · Answer

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MySQL on Ubuntu Keeps Crashing

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MySQL on Ubuntu Keeps Crashing