this post was submitted on 01 Jul 2023
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Lemmy.World Announcements

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Looks like it works.

Edit still see some performance issues. Needs more troubleshooting

Update: Registrations re-opened We encountered a bug where people could not log in, see https://github.com/LemmyNet/lemmy/issues/3422#issuecomment-1616112264 . As a workaround we opened registrations.

Thanks

First of all, I would like to thank the Lemmy.world team and the 2 admins of other servers @stanford@discuss.as200950.com and @sunaurus@lemm.ee for their help! We did some thorough troubleshooting to get this working!

The upgrade

The upgrade itself isn't too hard. Create a backup, and then change the image names in the docker-compose.yml and restart.

But, like the first 2 tries, after a few minutes the site started getting slow until it stopped responding. Then the troubleshooting started.

The solutions

What I had noticed previously, is that the lemmy container could reach around 1500% CPU usage, above that the site got slow. Which is weird, because the server has 64 threads, so 6400% should be the max. So we tried what @sunaurus@lemm.ee had suggested before: we created extra lemmy containers to spread the load. (And extra lemmy-ui containers). And used nginx to load balance between them.

Et voilΓ . That seems to work.

Also, as suggested by him, we start the lemmy containers with the scheduler disabled, and have 1 extra lemmy running with the scheduler enabled, unused for other stuff.

There will be room for improvement, and probably new bugs, but we're very happy lemmy.world is now at 0.18.1-rc. This fixes a lot of bugs.

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[–] dichtbringer@lemmy.world 1 points 1 year ago

Cool beans, WefWef also seems to work now again :)

[–] sib@lemmy.world 1 points 1 year ago

Well done guys. Love the new update

[–] SteelBeard@lemmy.world 1 points 1 year ago

Thank you for the work and all the transparency Ruud, glad to have you as our Admin.

[–] Codandchips@lemmy.world 1 points 1 year ago

Thanks very much for your time and effort Ruud, it's much appreciated! Now, after you've put the kids to bed, grab yourself a beer and put your feet up!

[–] jcb2016@lemmy.world 1 points 1 year ago

Nice they finally updated after forever lol j/k wefwef and some other third-party said are getting rate limited. Wefwef is unusable

[–] SulaymanF@lemmy.world 1 points 1 year ago

What I had noticed previously, is that the lemmy container could reach around 1500% CPU usage, above that the site got slow. Which is weird, because the server has 64 threads, so 6400% should be the max. So we tried what @sunaurus@lemm.ee had suggested before: we created extra lemmy containers to spread the load. (And extra lemmy-ui containers). And used nginx to load balance between them.

Et voilΓ . That seems to work.

They're on virtual tin and didn’t configure properly. There are limits in the flat files you need to change by hand to get it to scale properly, it’s tricky.

[–] trouser_mouse@lemmy.world 1 points 1 year ago

Amazing work! Kids first, internet things later!

[–] MKBandit@lemmy.world 1 points 1 year ago

Quick everyone show Appreciation before they notice

[–] mtnwolf@lemmy.world 1 points 1 year ago

Tried to comment "looking good" but can't seem to comment. Getting a timeout.

[–] Lanusensei@kbin.social 1 points 1 year ago

So I can't login and the reset passwork button doesnt seem to do anything πŸ’€

[–] Tamhenk@lemmy.world 1 points 1 year ago

Awesome work guys! The NEW front page of the internet is born.

[–] phx@lemmy.world 1 points 1 year ago

Works with Jerboa again (yay).

Kinda makes sense that multiple containers might scale better. The actual processes within the container may have some limitations in terms of how well they thread etc.

[–] Myriadblue@lemmy.world 1 points 1 year ago

Thank you so much for doing this! The having an instance this big really made the difference for leaving reddit. I really missed jerboa and am glad to have it back as a client.

[–] vaanam@lemm.ee 1 points 1 year ago
[–] Lem_Lemoncloak@lemmy.world 1 points 1 year ago

Bug I’m running into -

When my mobile browser (Firefox, iOS) language is set to something other than English, not content loads and I am unable to log in.

[–] daniskarma@lemmy.world 1 points 1 year ago

You guys are awesome!! Thanks

[–] Ghostalmedia@lemmy.world 1 points 1 year ago

On a somewhat related note, how are you coping with the scaling from the Reddit migration?

[–] thingsiplay@kbin.social 1 points 1 year ago

@ruud Thank you for the work you guys are doing. Without you, we wouldn't have an organized place to go after Reddit and Twitter.

[–] bigtuna@lemmy.world 1 points 1 year ago
[–] _I_@kbin.social 1 points 1 year ago
[–] Myriadblue@lemmy.world 1 points 1 year ago

Thank you so much for doing this! The having an instance this big really made the difference for leaving reddit. I really missed jerboa and am glad to have it back as a client.

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