3633
Lemmy World outages (lemmy.world)
submitted 1 year ago* (last edited 1 year ago) by lwadmin@lemmy.world to c/lemmyworld@lemmy.world

Hello there!

It has been a while since our last update, but it's about time to address the elephant in the room: downtimes. Lemmy.World has been having multiple downtimes a day for quite a while now. And we want to take the time to address some of the concerns and misconceptions that have been spread in chatrooms, memes and various comments in Lemmy communities.

So let's go over some of these misconceptions together.

"Lemmy.World is too big and that is bad for the fediverse".

While one thing is true, we are the biggest Lemmy instance, we are far from the biggest in the Fediverse. If you want actual numbers you can have a look here: https://fedidb.org/network

The entire Lemmy fediverse is still in its infancy and even though we don't like to compare ourselves to Reddit it gives you something comparable. The entire amount of Lemmy users on all instances combined is currently 444,876 which is still nothing compared to a medium sized subreddit. There are some points that can be made that it is better to spread the load of users and communities across other instances, but let us make it clear that this is not a technical problem.

And even in a decentralised system, there will always be bigger and smaller blocks within; such would be the nature of any platform looking to be shaped by its members. 

"Lemmy.World should close down registrations"

Lemmy.World is being linked in a number of Reddit subreddits and in Lemmy apps. Imagine if new users land here and they have no way to sign up. We have to assume that most new users have no information on how the Fediverse works and making them read a full page of what's what would scare a lot of those people off. They probably wouldn't even take the time to read why registrations would be closed, move on and not join the Fediverse at all. What we want to do, however, is inform the users before they sign up, without closing registrations. The option is already built into Lemmy but only available on Lemmy.ml - so a ticket was created with the development team to make these available to other instance Admins. Here is the post on Lemmy Github.

Which brings us to the third point:

"Lemmy.World can not handle the load, that's why the server is down all the time"

This is simply not true. There are no financial issues to upgrade the hardware, should that be required; but that is not the solution to this problem.

The problem is that for a couple of hours every day we are under a DDOS attack. It's a never-ending game of whack-a-mole where we close one attack vector and they'll start using another one. Without going too much into detail and expose too much, there are some very 'expensive' sql queries in Lemmy - actions or features that take up seconds instead of milliseconds to execute. And by by executing them by the thousand a minute you can overload the database server.

So who is attacking us? One thing that is clear is that those responsible of these attacks know the ins and outs of Lemmy. They know which database requests are the most taxing and they are always quick to find another as soon as we close one off. That's one of the only things we know for sure about our attackers. Being the biggest instance and having defederated with a couple of instances has made us a target.  

"Why do they need another sysop who works for free"

Everyone involved with LW works as a volunteer. The money that is donated goes to operational costs only - so hardware and infrastructure. And while we understand that working as a volunteer is not for everyone, nobody is forcing anyone to do anything. As a volunteer you decide how much of your free time you are willing to spend on this project, a service that is also being provided for free.

We will leave this thread pinned locally for a while and we will try to reply to genuine questions or concerns as soon as we can.

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[-] HexesofVexes@lemmy.world 24 points 1 year ago

In terms of the "expensive" SQL queries - is this an issue that the lemmy devs are working on? I.e. is this a problem that might solve itself in time?

[-] OsrsNeedsF2P@lemmy.ml 20 points 1 year ago

It's being worked on, but the Lemmy core devs have another problem - their funding will actually get pulled if they don't meet some deliverables by the end of the year, and they're woefully off track for meeting them.

[-] Corkyskog@sh.itjust.works 9 points 1 year ago

I am confused. What deliverable, and to whom? I thought they were funded by donations.

[-] OsrsNeedsF2P@lemmy.ml 15 points 1 year ago* (last edited 1 year ago)

Lemmy is currently generously funded by NLNet, under the condition they meet some development goals they promised to meet back at the start of the year: https://nlnet.nl/

[-] PriorProject@lemmy.world 2 points 1 year ago

I have to wonder if NLNet has some process for amending commitments made in light of new lessons learned. By a wide variety of metrics, the impact of the project has been increased beyond all imagination and ambition that people could have had in January. And the technology and quality of the project has improved way way faster as its accrued new contributors. This is really a case where the the right milestones to measure by have changed.

One might also hope that a call for help from contributors on these specific milestones might just get them back on track.

But speculation aside... yeah your description of their funding challenges is accurate.

[-] AbsolutelyNotABot@lemmy.world 3 points 1 year ago

They received a grant from NLbet, but apparently they're having an hard time reaching the requirements for the next tranche

[-] lorkano@lemmy.world 17 points 1 year ago

From what I've seen in GitHub repo some of the queries have been optimized by experienced sql developer (volunteer) recently, but a lot of them still need work

this post was submitted on 09 Aug 2023
3633 points (98.0% liked)

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