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Lemmy Federation Architecture Change Proposal
(github.com)
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this post was submitted on 21 Jun 2023
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My logic, was the move the load away from the primary instance server, onto a service/server that only focuses on handling federation duties.
My reasoning- is to break apart the two workloads, and hopefully build a more scalable federation tier, that can scale independently on the primary instance server.
I understand the logic, and you're right to think about how improve Lemmy's scalability. But I'm not sure if this is the way to go.
If you build a dedicated federation proxy for an instance, you've really just slightly moved the problem. The federation proxy is going to have the same scalability issues, and if anything the total load goes up.
If you build multi-instance hubs, you suddenly introduce a lot of new issues.
I would agree with all of your above points.
That said- https://github.com/LemmyNet/lemmy/issues/3245 The most recent idea has popped up a few times on both lemmy, and now github- and actually sounds like a potential solution as well.
Just- using signed messages between instances, which can be transmitting P2P, instead of direct only.
Yeah what's being described there is basically a P2P model. I still think it wouldn't make a huge difference in the chattiness of the protocol. At best it would redistribute the load for outgoing federation messages, but not for incoming ones. An instance still has to receive each message individually, regardless of where they comes from.