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 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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[–] jacktherippah@lemmy.world 20 points 1 year ago (1 children)

Eyyyy, nice. I can use Jerboa again. Thanks for your work!

[–] Questy@lemmy.world 3 points 1 year ago (2 children)

It still isn't working for me, it is stuck in Local Active and can't change filters. Probably something else though, no server version error now. I have been using Connect for Lemmy, which I'd never heard of but came up in the play store search. Seems to work fine, it's some real early access out here!

[–] UnfortunateShort@lemmy.world 2 points 1 year ago (1 children)

Try closing the app and clearing the cache. If that doesn't work, maybe consider reinstalling.

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

I should have given that a try, clearing the cache hadn't worked, but the reinstall did. Thanks =)

[–] DigitalPortkey@lemmy.world 2 points 1 year ago

Don't forget to checkout Liftoff and Thunder, they are phenomenal Android apps. Also, both Boost and Sync are going to be launching early versions of their Lemmy apps soon!