Post #2319476

@katemorley@hachyderm.io @hrbrmstr@mastodon.social Do you have good test plans for the applications and a way to measure and quantify performance? If not you're kind of going in blind. An application mapping tool can help to figure out which apps are actually using which dbs and from where. It might help with the cutover vs. piecemeal decision. (Doing it piecemeal will also create the project that never ends unless you have strong exec support.) If you do a cutover make sure you have a trivial failback plan and well-defined rules for pass/fail. Don't be afraid to fail if you can easily fail back and try again. Hope I'm not mansplaining, these are just things I've had to learn the hard way over the years. Not even MySQL-specific.