Not guessing, postmortems are regularly posted on this site and elsewhere. These kinds of failures are generally not someone using some "magic" (or whatever other pejorative term) feature of a framework.
Re:GitHub was down
by mundanevoice on Monday July 13, 2020 @03:58AM
(#23818284)
Agreed. Do we have postmortems for the number of spectacular crashes Github had this year?
> for projects at Github's scale it's rarely a code logic/framework-level blunder that's taking the service down. It's generally a cascade of failures in things like multiple database systems, auto-scaling, dns/caching, etc.
This is just guessing. You can't honestly tell what is causing the issue.