Have a MySQL 911 - Will pay for help tonight
Debian 8.x server
MySQL
Nginx.
Nothing fancy outside of LEMP except fail2ban… pretty straight forward.
Running a few WordPress sites. Today, they all began giving "error establishing database connection" messages. I've been Googling and searching and trying all kinds of stuff. Can't get it working. I can restart MySQL and a site will load, but it's very slow, and then moments later the database error resurfaces.
I'm out of my league on this - never had it happen before.
**** UPDATE *****
It looks like I had some bad tweaks in my my.cnf file, but for whatever reason, they'd been fine for 3 months, and just blew up today. Whatever. Thanks anyone for looking!