this post was submitted on 01 Jul 2023

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Lemmy.World Announcements

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Lemmy.world updated to 0.18.1-rc (lemmy.world)

submitted 2 years ago* (last edited 2 years ago) by [email protected] to c/[email protected]

567 comments fedilink hide all child comments

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 voilà. 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] 1 points 2 years ago

Great work, thanks!

[–] [email protected] 1 points 2 years ago

Thank you for al the work. Do you have a need or plans for community help at all? Outside of content moderation? Not quite sure how I could help but I do software for a living.

[–] [email protected] 1 points 2 years ago

Posting this from Jerboa! Thank you for the hard work.

[–] [email protected] 1 points 2 years ago

Cool

[–] [email protected] 1 points 2 years ago

Amazing work! Kids first, internet things later!

[–] [email protected] 1 points 2 years 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 @[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 voilà. 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.

[–] [email protected] 1 points 2 years ago

Woo! Great work!

[–] [email protected] 1 points 2 years ago

Congratulations on the upgrade - thanks for hanging in there for the community!

[–] [email protected] 1 points 2 years ago

You guys are awesome!! Thanks

[–] [email protected] 1 points 2 years ago

Could finally login back to my lemmy.world account on Jerboa. Thanks for all the work, Ruud!

[–] [email protected] 1 points 2 years ago

Really nice, thanks for the joint effort!

[–] [email protected] 1 points 2 years ago

Yay, thank you!

[–] [email protected] 1 points 2 years ago

Thx for all the hard work!

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

Can't edit profile settings / info. Pushing Save does nothing.

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[–] [email protected] 1 points 2 years ago

U peeps are awesome. 🙏🙇

[–] [email protected] 1 points 2 years ago

M O I S T

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago) (1 children)

Does it still sync with kbin.social?
00:35 CET / 22:35 UTC

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago)

It takes a while, no lemmy.world favorites yet.

edit: ~ 2hours, no sync yet :(

[–] imrichyouknow 1 points 2 years ago

Hopefully the performance issue will be resolved soon, I can imagine lots of new refugees will be migrating to this instance.

[–] [email protected] 1 points 2 years ago

Thanks for being both informative and open about this issue. Hope it works out.

[–] [email protected] 1 points 2 years ago

Posting this from Jerboa. I am grateful for the hard work!

[–] [email protected] 1 points 2 years ago

Let's gooo

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