Monitor your databases with this open source tool

I have been using databases for a lot longer than I care to admit, and a lot of that time has been spent looking at the entrails of servers, trying to determine exactly what they were doing. Thank goodness for the engineers behind the MySQL Performance Schema and Information Schema and their efforts to provide solid information. And then came the Sys schema with handy prepackaged peeks at the server. Before the advent of those schemas, there was no easy way to get granular information about a database instance.