MySQL Daemon Lock issue

Question

Last night, my MySQL server went down unexpectedly. On attempting to restart (with service mysql restart - I\'m root) it merely hangs. With the mysql -u r

Answer 1

Posting this answer, in case it helps someone with the same config as me. I had similar issue with this configuration:

Host OS: Ubuntu 20.04, MySql server: 8.0

The following error was seen in /var/log/mysql/error.log during run of systemctl start mysql

[ERROR] [MY-010273] [Server] Could not create unix socket lock file /var/run/mysqld/mysqld.sock.lock.

Fix was similar:

mkdir -p /var/run/mysqld/
chmod 777 /var/run/mysqld/

And of course, I had enough space wherever mysql server was being installed.