[Done] Server will be migrated (More power!) (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by ruud@lemmy.world to c/lemmyworld@lemmy.world

70 comments fedilink hide all child comments

So after we've extended the virtual cloud server twice, we're at the max for the current configuration. And with this crazy growth (almost 12k users!!) even now the server is more and more reaching capacity.

Therefore I decided to order a dedicated server. Same one as used for mastodon.world.

So the bad news... we will need some downtime. Hopefully, not too much. I will prepare the new server, copy (rsync) stuff over, stop Lemmy, do last rsync and change the DNS. If all goes well it would take maybe 10 minutes downtime, 30 at most. (With mastodon.world it took 20 minutes, mainly because of a typo :-) )

For those who would like to donate, to cover server costs, you can do so at our OpenCollective or Patreon

Thanks!

Update The server was migrated. It took around 4 minutes downtime. For those who asked, it now uses a dedicated server with a AMD EPYC 7502P 32 Cores "Rome" CPU and 128GB RAM. Should be enough for now.

I will be tuning the database a bit, so that should give some extra seconds of downtime, but just refresh and it's back. After that I'll investigate further to the cause of the slow posting. Thanks @veroxii@lemmy.world for assisting with that.

(page 2) 20 comments

sorted by: hot top controversial new old

[-] TheDarkBanana87@beehaw.org 0 points 1 year ago

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 😀

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

[-] ruud@lemmy.world 0 points 1 year ago

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.

load more comments (1 replies)

[-] novettam@lemmy.world 0 points 1 year ago

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!

[-] WhatASave@lemmy.world 0 points 1 year ago

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.

[-] Barbarian@sh.itjust.works 0 points 1 year ago

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.

[-] PenguinTD@lemmy.ca 0 points 1 year ago

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?)

load more comments (1 replies)

[-] novettam@lemmy.world 0 points 1 year ago

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.

load more comments (1 replies)

[-] api@fedia.io 0 points 1 year ago

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.

load more comments (1 replies)