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 @[email protected] and @[email protected] 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 @[email protected] 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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[–] [email protected] 4 points 2 years ago

This looks like it’s exposed some weaknesses, and it sounds like the team has it under control.

I’m moving right now and can’t dedicate time to development, but once I’m up and running I should be able to start contributing.

Scalability is always a concern with these sites, so there’s plenty to do to improve that

[–] [email protected] 4 points 2 years ago

Thanks so much for everything!

[–] [email protected] 4 points 2 years ago (1 children)

Is there a issue with the api? ( Because the api wrapper lemmy-js-client doesnt work on login. ) I tried it yesterday but not today yet. I will test it when i can :)

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[–] [email protected] 4 points 2 years ago

I survived!

[–] [email protected] 4 points 2 years ago

Thank you!!

[–] [email protected] 4 points 2 years ago

Its been pretty snappy for me all afternoon! No errors to speak of.

Nice work!

[–] [email protected] 4 points 2 years ago

It keeps logging me out, plus when I log in, alarmingly other users' profile names flash in the top right corner for a second.

[–] [email protected] 4 points 2 years ago

We're back baby!

[–] [email protected] 3 points 2 years ago

Thanks for all the time and work you put towards making this community better! It's really appreciated!

[–] [email protected] 3 points 2 years ago

It seems there is still some performance issues.

Maybe consider a webcache like varnish to take some of the load off?

[–] [email protected] 3 points 2 years ago

Let us know where donations can go, suspect a stacked docker-compose will reach limits very quickly

[–] [email protected] 3 points 2 years ago

Working well here and can use Jerboa again. Although wefwef is really growing on me!

Edit: couldn't post from Jerboa, got network error. But wefwef worked.

[–] [email protected] 3 points 2 years ago

Seems to work good enough!

[–] [email protected] 3 points 2 years ago

Amazing work! It seems much more performant now, everything seems to be loading faster.

[–] [email protected] 3 points 2 years ago

Excellent work!

[–] [email protected] 3 points 2 years ago

0.18 looks a lot better. Far better use of screen real estate on PCs.

Lag is still very prevalent though. Page loading, upvote delay. It's frustrating.

Live comments (like on new Reddit) does not seem to be working on 0.18, so I have to manually refresh the page each time. That also resets the comment sort to Hot, causing further annoyance.

[–] [email protected] 3 points 2 years ago (4 children)

Tried to login but nothing happen except a "?" was added into the link. Tried delete data, cookie, etc but the probelm still persist. Comment from other instance

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[–] [email protected] 3 points 2 years ago

Logging in works now! Also got 2FA enabled without issues.

[–] [email protected] 3 points 2 years ago

Looking good πŸ‘

[–] [email protected] 3 points 2 years ago

Quick everyone show Appreciation before they notice

[–] [email protected] 3 points 2 years ago

Yay, i could finally login. Thank you for the great work and thank you for keeping us updated!

[–] [email protected] 3 points 2 years ago (1 children)

obviously not critical, but it looks like there's a small sidebar bug (or feature?) that puts the pic near the instance name if it is the first thing in its description?

[–] [email protected] 3 points 2 years ago

I think that's a feature. But not 100% sure πŸ˜…
But honestly, I like the look. If it is a bug, it should become a feature 🀣

[–] [email protected] 3 points 2 years ago

This is awesome. Was a fun read too. Super cool to see what was going on behind the scenes.

[–] [email protected] 3 points 2 years ago

Thanks a lot, you’re great

[–] [email protected] 3 points 2 years ago

Thanks for all the time and work you put towards making this community better! It's really appreciated!

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