Skip Navigation

Lemmy Federation Architecture Change Proposal

github.com [Architecture] Hub-Spoke model for federation? · Issue #3245 · LemmyNet/lemmy

Question One of the biggest issues I am currently seeing with Lemmy, is federation. Either... Federation between instances having issues. Federation is backed up. Federation / Syncing is not scalin...

[Architecture] Hub-Spoke model for federation? · Issue #3245 · LemmyNet/lemmy

https://github.com/LemmyNet/lemmy/issues/3245

I posted far more details on the issue then I am putting here-

But, just to bring some math in- with the current full-mesh federation model, assuming 10,000 instances-

That will require nearly 50 million connections.

Each comment. Each vote. Each post, will have to be sent 50 million seperate times.

In the purposed hub-spoke model, We can reduce that by over 99%, so that each post/vote/comment/etc, only has to be sent 10,000 times (plus n*(n-1)/2 times, where n = number of hub servers).

The current full mesh architecture will not scale. I predict, exponential growth will continue to occur.

Let’s work on a solution to this problem together.

(Also- as federation has been completely broken on this particular server for me- there is a good chance I will not be able to see, or reply to anything posted below... That is, also assuming this even posts correctly to this server.)

2

You're viewing a single thread.

2 comments
  • A valid concern for sure. An issue we needed to overcome when the internet was still young and an issue that will absolutely affect Lemmy as it continues to grow.