So I am getting this error while accessing my WordPress site. I mitigated XMLRPC attack and added swap file but to no avail.
While trying to connect to DB using ‘mysqladmin -u root -p status’ command, I am getting below error.
mysqladmin: connect to server at ‘localhost’ failed error: ‘Can’t connect to local MySQL server through socket ‘/var/run/mysqld/mysqld.sock’ (2)’ Check that mysqld is running and that the socket: ‘/var/run/mysqld/mysqld.sock’ exists!
Can anyone please help me troubleshoot this? I am on 512 MB droplet.
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Hello, all
This crash is most likely due to your system running out of memory. I’d suggest that you add a swap file to give yourself a bit more of a buffer. Check out this tutorial:
How To Add Swap on Ubuntu
You will most definitely need to upgrade your droplet as you’re running out of memory and your application/website needs more resources in order to continue to operate.
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:
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
You can also create a simple bash script to check if MySQL is running and if not to restart it.
Run this script every 5 minutes using a cron job like this one:
Hope that this helps! Regards, Alex
open this following file
and check in section [mysqld] for Bind address. make sure its properly configured.