ah, rate limits. something twitter was absolutely blasted for but makes sense here because we love lemmy :) even though it serves the same purpose.
this post was submitted on 22 Jul 2023
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Wonder why this wasn't done earlier. Hopefully we'll see less of the 404-type pages that has plagued this instance.
Dont understand this either, who the fck would expose real server IP in first place?
Excellent! CDN and DDoS protection are essential. Also would recommend looking into load balancing if you havenβt.
Load balancing applications is significantly more complex than most people anticipate. In the naive implementation it typically increases database loads and reduces site performance. Static content balancing is trivial, and cloudflare will do that by default, but implementing the hard part will require careful software development to prevent a naive implementation from bringing down the database. Sticky sessions are just the beginning.
I mean...this take is naive. Putting a load balancer up in front of a few servers isn't going to do anything to their database? No idea where you're even getting that from, as they are completely unrelated.
The total number of application servers accessing the database is what would affect db performance in a negative way, and load balancing doest automatically mean "do something stupid like spin up 100 app servers when we normally use 3". All you've described is a need for a db proxy in the off chance that Lemmy code has horrible access patterns for db transactions.
You can take your uninformed nerd rage elsewhere now, thank you.
You obviously haven't written one.
Simple case, without sticky sessions:
2 app servers behind a naive load balancer. Assume an actually restful service. Also assume a reasonable single app design with persistent db connections and db caching. Assume a single client. Single clients first connection comes in to app servers 1. App servers 1 makes db connection and grabs relevant data out of db. Caches information for client expecting a reconnect. Client makes second call, load balancer places it on app server 2, app servers 2 now makes a second connection and queries the data.
The db has now done twice the work for a single client. This pattern is surprisingly common and as the user count grows this duplication significantly degrades cache performance and increases load on the db. It only gets worse as the user count increases.
It's a common scenario for someone who doesn't understand the point of putting a load balancer in front of a stateful application, perhaps. Not for anyone trying to solve a traffic problem.
No idea where you are getting your ideas from, but this is an absolutely uninformed example of how NOT to do something in an ideal way.
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Lmaooo Cloudflare is in the comments downvoting criticism
meanwhile it was giving me incorrect login error and I had thought someone got into my account lol
I could swear, and also could be wrong, but someone said Cloudflail doesn't handle ddos attacks. Which adds more to your comment if true lol
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