MySQL error 2002 / Database error: connection failed!
I host a roundcube installation as well as YOURLS, which both make use of MySQL databases. Everything worked very fine, up until yesterday evening; MySQL decided it was time to make a mess of things and refused to work! Since I host two of my websites on the same VPS, using the same MySQL installation, they both stopped working at once.
The errors I get on my websites are as follows:
DATABASE ERROR: CONNECTION FAILED! Unable to connect to database.
SQLSTATE[HY000]  Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)
The YOURLS error gave more insight into my problem, so I googled MySQL socket error and got a few interesting suggestions. On Stack Overflow, they suggested to chmod 777 the mysql socket, add
socket=/var/lib/mysql/mysql.sock to my.cnf, but none of this helps. However, one peculiarity I found is that MySQL starts working again after I restart it. Hmm, very strange. I’ll try and reinstall it, after all, and see what comes of it.
Please help, if you know how to solve this problem. Thank you!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.×