We have 3 monitors running at the moment. Synthetics and Infrastructure. We also have pingdom running. I have noted of late we do not get our Synthetics alerts via slack however Pingdom has been consistent and very responsive with error alerts. Is there an issue with our account or the way these alerts are triggered?
Also sometimes we find our mySQL server goes down but we do not get an alert i.e. when they are restarted on the server but failed to start up or crash. Which infrastructure metric can we use to check the uptime of the mySQL instance? same with Nginx.
Currently I am using “Connections Dropped Per Second” (Nginx) and “Connection Errors Max Connections” (MySQL) but unsure if those are the appropriate ones to check.