this post was submitted on 01 Jul 2023
3756 points (97.2% liked)

Lemmy.World Announcements

29079 readers
276 users here now

This Community is intended for posts about the Lemmy.world server by the admins.

Follow us for server news 🐘

Outages πŸ”₯

https://status.lemmy.world/

For support with issues at Lemmy.world, go to the Lemmy.world Support community.

Support e-mail

Any support requests are best sent to [email protected] e-mail.

Report contact

Donations πŸ’—

If you would like to make a donation to support the cost of running this platform, please do so at the following donation URLs.

If you can, please use / switch to Ko-Fi, it has the lowest fees for us

Ko-Fi (Donate)

Bunq (Donate)

Open Collective backers and sponsors

Patreon

Join the team

founded 2 years ago
MODERATORS
 

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.

(page 4) 50 comments
sorted by: hot top controversial new old
[–] [email protected] 5 points 1 year ago

Thanks for the update. I especially like the transparency on not only the β€œupgrade” itself but also the potential issues encountered, together with the solutions. Seems rare nowadays, or I’m just seeing less and less people doing this.

[–] [email protected] 5 points 1 year ago (1 children)

My first comment on here! Thanks for creating this, this looks fantastic and a great Reddit alternative. Keep up the great work.

load more comments (1 replies)
[–] [email protected] 5 points 1 year ago* (last edited 1 year ago)

Have you considered running your Lemmy instance on more than a single machine? If it is possible to run two lemmy containers anyway (ie, lemmy is not a singleton), why not run them on separate machines? With load balancing you could achieve a more stable experience. It might be cheaper to have many mediocre machines rather than a single powerful one too, as well as more sustainable long-term (vertical vs horizontal scaling).

The downside would be that the set-up would be less obvious than with Docker compose and you would probably need to get into k8s/k3s/nomad territory in order to orchestrate a proper fleet.

[–] [email protected] 5 points 1 year ago

Fuck yeah upgrade hype

[–] [email protected] 5 points 1 year ago

Thank you! I love it here. Sending good vibes

[–] [email protected] 5 points 1 year ago

Thanks! Seems to be working fine so far.

[–] [email protected] 5 points 1 year ago

Really like seeing posts like this that explain what's going on. Thanks for all the hard work!

[–] [email protected] 5 points 1 year ago

New user registrations closed until tomorrow

Warning: Be careful, this might trigger this bug here: https://github.com/LemmyNet/lemmy/issues/3422#issuecomment-1616112264

[–] [email protected] 5 points 1 year ago* (last edited 1 year ago) (9 children)

I am still getting errors half the time I do anything while using jerboa

Website is working great though

Edit: It's suddenly working a lot better now. Hopefully I am not jinxing myself.

[–] [email protected] 4 points 1 year ago

I cannot even login with Jerboa

load more comments (8 replies)
[–] [email protected] 4 points 1 year 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 :)

load more comments (1 replies)
[–] [email protected] 4 points 1 year ago

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

Nice work!

[–] [email protected] 4 points 1 year 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] 4 points 1 year 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 1 year ago

I survived!

[–] [email protected] 4 points 1 year 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 1 year ago

We're alive!!!

Thank you :)

[–] [email protected] 4 points 1 year ago

Special thanks to the other guys for helping make this update possible. Site is snappier than ever and the UI looks fantastic.

[–] [email protected] 4 points 1 year ago

I really enjoy how lemmy is growing!

[–] [email protected] 4 points 1 year ago

Also chipping in to give my appreciation, really enjoying Lemmy through lemmy.world!

[–] [email protected] 4 points 1 year ago

I really enjoy how lemmy is growing!

[–] [email protected] 4 points 1 year ago

This is really cool that this gets shared. Thanks for all of the info!

[–] [email protected] 4 points 1 year ago

Thanks so much for everything!

[–] [email protected] 4 points 1 year ago
[–] [email protected] 4 points 1 year ago

I really enjoy how lemmy is growing!

[–] [email protected] 4 points 1 year ago

Hey man I just want to say thank you for your hard work.

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

Awesome! Loading issues are still the bane of Lemmy's existence though, or at least it is for me and my experience with Lemmy. Everything just loads so slow. Sorting is still broken as well. Communities that I KNOW that are active just show as blank for me no matter what I sort by.

load more comments (1 replies)
[–] [email protected] 4 points 1 year ago

I can finally login!

[–] [email protected] 4 points 1 year ago

Excellent news! I can browse Lemmy on my phone again, many thanks to you @Ruud and everyone else who worked on this!

[–] [email protected] 4 points 1 year ago

Great stuff!

load more comments
view more: β€Ή prev next β€Ί