Thanks for everything you're doing. I signed up for Patreon to contribute!
this post was submitted on 12 Jun 2023
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Hello, i still doesn't quite grasp about the concept of federation and about how fediverse works.
But does it means that one instance can only run from one server?
Say lemmy.world running on Server A lemmy.ml running on Server B
User can register on whichever they want and can see the post from server A and Server B
But when Server A reach maximum capacity, can Server A scale up or distribute the load to multiple instances?
How can we solve the issue of computing power when more and more users migrate to using this services
Thank you π
Sorry if its a dumb question, but the whole Federation concept is still new to me. I created multiple account to log in to beehaw, mastodon, lemmy.world, lemmy.ml at first because i dont know that with one user, i can see other communities from another instances
Optimal would be if users would spread over many servers, instead of all coming to Lemmy.world. But most users don't fully understand the Federation concept so they think they need to register here so they can see local content?
I think the current server can handle a lot of users. It's just the software that isn't ready for it.. but that will improve. If ever this server gets too small, next step would be to scale using Kubernetes, but also that requires the software to be better prepared for that.
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Would be awesome if you create some group chat (e.g. Discord?) and add sysadmins/devops to it. Would be more than happy to assist, especially if you have questions or need opinions.
I've been working as sre/sysadmin/devops for the past ~5 years and ~9 years of (Arch) Linux user. More than 1K Arch Wiki edits over that period of time.
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Are you running this out of your home?
I have self hosted small things before, but I was always curious about lager stuff like this.
What are your internet speeds?
Check the updated post. It's running on a dedicated server hosted by Hetzner. Specs are high-end: "AMD EPYC 7502P 32 Cores βRomeβ CPU and 128GB RAM."
Thanks for letting me know. I also have my work stuff on Hetzner. But I do not see "Hetzner" listed in this post.
Have you ever hosted on Vultr? I need a server with less latency and Vultr seems to have servers in a good location for my needs.
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Went ahead and subbed on patreon. Hope that lemmy survives the growing pains and can develop some of the community that reddit had!
Also if there are any fellow former apollo users would def recommend checking out Mlem, its in testflight right now but seems to be working towards the experience that apollo gave on reddit.
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Performance is looking awesome, lemmy.world is responding very fast to community subscription requests and search is also very fast. My experience when using other instances was that search didn't work at all, hindering community discovery.
Thanks!
This is how I understand it: a current limitation (feature?) Is that you can only search from your instance to other communities if someone from your instance has interacted with it. But if you use https://browse.feddit.de/ you can search across all instances. Then subscribe to it, or search the whole url in your own instances search. Once an instance interacts with another, now other people from your instance can search for it by simple name.
Oh, so it is due to the larger userbase here! There is a larger chance that someone already subscribed to a community I am looking for.
Still, when I was using another instance, subscribing to communities at lemmy.world was instantaneous while subbing to communities at beehaw.org or lemmy.ml often took more than one try.
It also doesn't help that lemmy.ml where a lot of users migrated at first seems to be having issues right now.
Also on jerboa searching for communities by url doesn't seem to be working.
Hopefully the influx of new users and attention helps improving and ironing some issues like it happened with mastodon.
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So, mostly correct. Lemme clarify:
If you do a URL search in the communities page (with all settings set to "All", even "Communities"), your instance will pull in a few of the latest posts and comments. Not anything too heavy, just enough to give you an idea of what's going on.
The moment a single user on your instance subscribes, your instance will start pulling in everything from that community. If every instance pulled in every community from every other instance, the network would be very vulnerable to a botspam instance that goes up would crash everything. Much better for an instance to only pull in communities that people are interested in.
can the instance owner limit the rate of amount pulled? Say, if a malicious user joins a small server, and then subs every known nsfw instances' communities what then? Like is lemmy by default a whitelist approach or blacklist? (or maybe somewhere in the middle?)
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Anyone looking to host something big should check out bare metal hosting like Datapacket, Reliablesite, FDCServers, etc. Down side is total lack of handholding and other cloud features and the fact that you can't scale up without redeploying on a new box, but the upside is ridiculously cheap bandwidth. The bandwidth cost is by size of pipe, not gigabyte transferred, and pipes upwards of 10gbps are affordable.
OVH and Hetzner are also worth looking at but aren't quite as cheap bandwidth-wise.
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