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 voilร . 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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[โ€“] [email protected] 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.

[โ€“] [email protected] 3 points 2 years ago

Excellent work!

[โ€“] [email protected] 3 points 2 years ago
[โ€“] [email protected] 3 points 2 years ago

Seems to work good enough!

[โ€“] [email protected] 3 points 2 years ago

Hurray! Works well for me so far.

[โ€“] [email protected] 3 points 2 years ago

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

[โ€“] [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?

[โ€“] [email protected] 3 points 2 years ago* (last edited 2 years ago)

It seems that I can't log out in my browser. The page simply reloads after clicking the button.

[โ€“] [email protected] 3 points 2 years ago

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

[โ€“] [email protected] 3 points 2 years ago

๐Ÿ™Œ Great work team!!!

[โ€“] [email protected] 3 points 2 years ago

Thanks for getting the update out!

Definitely weird that it was 1500 instead of some power of 2*100!

Also, when we finally get a 128 thread machine just think of the meme potential!

[โ€“] [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.

[โ€“] [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.

[โ€“] [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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[โ€“] [email protected] 2 points 2 years ago

Thanks ruud

[โ€“] [email protected] 2 points 2 years ago

Much love for your work

[โ€“] [email protected] 2 points 2 years ago

Thanks for your time and effort! After the kids have gone to bed, grab yourself a beer and put your feet up!

[โ€“] [email protected] 2 points 2 years ago

Thank you for everything that you do!

[โ€“] [email protected] 2 points 2 years ago

Thanks for your time and effort! After the kids have gone to bed, grab yourself a beer and put your feet up!

[โ€“] [email protected] 2 points 2 years ago

Thanks for all the hard work!

[โ€“] [email protected] 2 points 2 years ago (2 children)

You know, this is a nice post because now I understand what was happening to me as a user. Thanks for confirming that I am not insane! Well, maybe I'm insane, but what I was trying to do and couldn't was real, not something I was doing wrong. Also, thanks for updating the stuff that makes it work.

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[โ€“] [email protected] 2 points 2 years ago

Thanks so much for all your hard work, love Lemmy world! Enjoy the time with family!

[โ€“] [email protected] 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.

[โ€“] [email protected] 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.

[โ€“] [email protected] 2 points 2 years ago* (last edited 2 years ago)

Thanks for the hard work!, I had an issue the first minutes where every time I logged in I got logged in with a different stranger account, now it doesn't happen but I can't login haha.

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