Yes, I’m certain I could final answers to all these questions via research, but I’m coming here as part of the Reddit diaspora. My guess is that there’s a benefit to others like me to have this discussion.

I can vaguely understand the federation concept, the idea that my account is hosted at an individual Lemmy server and that other servers trust that one to validate my account. What’s the network flow like? I’m posting this to the lemmy.ml /asklemmy community, but I’m composing it on the sh.itjust.works interface. I’m assuming sh.itjust.works hands this over to lemmy.ml. How does my browsing work? Is all of my traffic routed through sh.itjust.works?

Assuming there’s a mass influx of redditors, what does it look like as things fail? I’m assuming some servers can keep up under the load and some can’t. If sh.itjust.works goes down under the load, can I still browse other servers? Or, do those servers think I should have some token from sh.itjust.works, because my cookies say I’m still logged in, and I can’t even do that?

Are there easy mechanisms to allow me to grab my post history?

I’m assuming most (all?) Lemmy servers are hosted in home labs? The idea of Lemmy excites me, but the growth pain that could be coming scares me. Anybody using a CDN in front of their servers? That could be good, but with unconstrained growth, that could be costly, which is very bad.

I can imagine lots of different worse case scenarios, but I’m curious what those of you who run servers imagine for the best case scenario? A manageable growth that just gets more vibrant communities, which can’t ever lead to the breadth and variety of Reddit?

Also, for those running servers, have any of you experienced issues during this growth? What scares you?

  • PriorProject@lemmy.worldEnglish
    2·
    1 year ago

    Can’t help but ask though, is the federation somewhat comparable to a blockchain?

    Both ecosystems involve large number of independent peers that must coordinate without a leader and both were designed in the same decade. There are some similarities. There are also some big differences. I wouldn’t say that either needs to be more like the other than it is, they address different use-cases.

    … individual communities could federate such that posts from two different meme communities in different instances could be merged into the same feed on the user end…

    I’m not real convinced this is all that useful for the steady state. technology@beehaw.org and technology@lemmy.ml are not meaningfully different than /r/technology and /r/tech (both of which are real subreddits, despite what many are saying… Reddit is FULL of duplicative subreddits. It’s just that one usually is much bigger and dominates). The main case I could see for what you’re describing would be community transfer or shutdown. If admins are killing a server, or mods of the smaller community give up… it might be cool to migrate subs/posts en-masse to a new community and shut down the old one. There there’s just no need to have two local communities that both remain active but are somehow “merged” in federation. That is indistinguishable from the scenario where everyone subs to one of the two communities without regard for where the community is hosted.