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Are all these thousands of lemmy servers useless?
(lemmy.world)
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this post was submitted on 12 Jun 2023
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I just commented on this in another thread: https://lemmy.world/comment/76011
TL;DR: The server-to-client interactions on Lemmy are a lot heavier than the server-to-server interactions, so even if you're just using your own server to interact with communities on other servers, it should still take load off of the servers you would have been using directly.
That's news to me. I thought serverto-server interactions would be heavier since other instances will keep fetching contents from your instance once they start federating. I guess it's better to join less populated instances instead of crowding on a single instance.
Huh, so the problem is about just serving static assets? TBH, I think this problem should be mostly solved, especially for such minimalistic UI. Maybe some (free) CDN? Also UI can use any lemmy server for most of requests (e.g. fetched federated_servers fom a bootstrap node) and use "logged one" only for user actions. I think it isn't a terrible difficult task for the current ui (it has it's own backend).
It's not the static assets, it's the database queries
To expand, every user has their custom set of content that they want to see, which needs to be queried from the database. Mainly their subscriptions, those will rarely be the same between any two users, and they need to be aggregated according to the sorting method the user wants. Or other personal things, like every user's messages/replies/notifications/settings.