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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[–] nucleative@lemmy.world 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.

[–] DigitalPortkey@lemmy.world 3 points 2 years ago

Absolutely loving the new UI changes. Thanks for being so transparent with us as well!

[–] ubergeek77@lemmy.ubergeek77.chat 3 points 2 years ago* (last edited 2 years ago)

Running so many Lemmy instances against the same database doesn't cause race conditions? I wonder why that "just worked" so easily, usually load balancing DB-backed apps is a whole beast on its own.

[–] dasnet@mastodon.social 3 points 2 years ago
[–] ChriskiV@lemmy.world 3 points 2 years ago

Signed into Jerboa! Thanks devs!

[–] lazycouchpotato@lemmy.world 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.

[–] Olap@lemmy.world 3 points 2 years ago

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

[–] Olap@lemmy.world 3 points 2 years ago

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

[–] feitingen@lemmy.world 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?

[–] Guster@lemmy.world 3 points 2 years ago

Nice work :)

[–] kazerniel@lemmy.world 3 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.

[–] xikufrancesc@lemmy.world 2 points 2 years ago

How beautiful and cute the new lemmy world looks. thanks boss.

Que bonito y lindo se ve el nuevo lemmy world. gracias jefe.

[–] JoMiran@lemmy.world 2 points 2 years ago (1 children)

Would you mind sharing your docker-compose.yml file (sanitized, of course)? I am trying to spin up an instance on Google Cloud.

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[–] Yoz@lemmy.world 2 points 2 years ago

Thank you for your hard work.

[–] AlmightySnoo@lemmy.world 2 points 2 years ago

looks like commenting got faster too?

[–] Sterben@lemmy.world 2 points 2 years ago

Congratulations! Works perfectly for me, thank you! πŸ€™

[–] Teal@lemmy.world 2 points 2 years ago

I was having trouble earlier but now able to log in just fine on browser. Voting on posts doesn't seem to be working for me on desktop or apps. In apps I keep seeing error notices about votes not going through and desktop browser (Firefox) doesn't work but there's no notification there. Anyone else? Maybe everything needs a little time to sync up.

[–] Smooth_Riker@lemmy.world 2 points 2 years ago

Thanks for all the hard work!

[–] kratoz29@lemmy.world 2 points 2 years ago

Seems that sometimes the hot algorithm gets messed up :/

[–] free@lemmy.world 2 points 2 years ago

U peeps are awesome. πŸ™πŸ™‡

[–] root@lemmy.world 2 points 2 years ago

Great work, and thank you for the thorough updates?

[–] Gort@lemmy.world 2 points 2 years ago

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

Edit: The first two versions of this post didn't seem to send: spinning post button. Maybe it's not fixed or it's struggling?

[–] Dude1324@lemmy.world 2 points 2 years ago

❀️

[–] smokedclover@lemmy.world 2 points 2 years ago

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

[–] solongaphasia@lemmy.world 2 points 2 years ago

thank you for all you’re doing on this. godspeed

[–] oldgreg@lemmy.world 2 points 2 years ago
[–] spasm01@lemmy.world 2 points 2 years ago (1 children)

I cannot see my subscriptions, not sure if its me or what. On Jerboa 0.34

[–] EyesInTheBoat@lemmy.world 3 points 2 years ago (3 children)

Does this problem still occur on the latest stable Jerboa build? I have a feeling it may be the breaking changes in 0.18.x+ causing this

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