Comment by yencabulator
25 days ago
> Unless your code is multi-threaded, to which I say, good luck!
What isn't multi-threaded these days? Kinda hard to serve HTTP without concurrency, and practically every new business needs to be on the web (or to serve multiple mobile clients; same deal).
All you need is a database and web form submission and now you have a full distributed system in your hands.
Only superficially so, await/async isn't usually like the old spaghetti multi-threaded code people used to write.
You mean in a single-threaded context like Javascript? (Or with Python GIL giving the impression of the same.) That removes some memory corruption races, but leaves all the logical problems in place. The biggest change is that you only have fixed points where interleaving can happen, limiting the possibilities -- but in either scenario, the number of possible paths is so big it's typically not human-accessible.
Webdevs not aware of race conditions -> complex page fails to load. They're lucky in how the domain sandboxes their bugs into affecting just that one page.
nginx is single–threaded, but you're absolutely right — any concurrency leads to the same ghost bugs.
nginx is also from the era when fast static file serving was still a huge challenge, and "enough to run a business" for many purposes -- most software written has more mutable state, and much more potential for edge cases.