[spyspy]

Something that was drilled into me early in my career was that you cannot expect your cache to be up 100% of the time. The logical extension of that is your main DB needs to be able to handle 100% of your traffic at a moment’s notice. Not only has this kind of thinking saved my ass on several occasions, but it’s also actually kept my code much cleaner. I don’t want to say rate limiters and circuit breakers are the mark of bad engineering, butttt they’re usually just good engineering deferred.

[sellmesoap]

Reminds me of gas plumbing, the indoor lines are only a few psi above ambient, but the lines themselves have to take line pressure to 300psi is case the regulator fails. It's good advice!