this post was submitted on 08 Aug 2023
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I'm not going to pretend to understand the technical details, but would it make more sense if Instances were treated more like subreddits? So instead of the main Lemmy.world instance, we'd have gaming.world, news.world, nsfw.world, woodworking.world, and so on. So then things would be distributed more evenly across the fediverse and it would be harder for a single for a DDOS attack to take out the entire system all at once? Or does the architecture of the whole thing not make any sense doing it like that? Would each instance then have to setup their own server or something to make it work?
I guess the community names could be subdomains, the default config would pass all the subdomains to the same Lemmy process. But this would make it easier to split things up down the road, and you could move some of those sub domains to different servers entirely.
Not sure if it's worth rearchitecting things like this now, probably better to just close signups and disallow creating new communities on overloaded instances like lemmy.world
Each instance is it's own server, then it has many communities which are created by users. Ideally we spread the communities across instances, but unfortunately most of the big communities are clustered on the big instances, because finding communities on small instances is hard.