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 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.
Really like seeing posts like this that explain what’s going on. Thanks for all the hard work!
Thanks a lot for your hard work, take your time with your children
This post encapsulates what I love about this place.
So no more random sports posts at the top of every thread? That was a weird bug.
Good work upgrading! I can’t imagine it being too easy with a big instance.
I had issues with comments not federating to my own instance before this update (showing 0 for hours). Opening up this up now showed most of them right away if not all. Hopefully that means 0.18.1 fixed a fair few issues people had with federation.
Well done! Thank you for your efforts, cheers!
For everyone experiences issues during the login,
This is caused by an issue in the latest RC of the Lemmy UI. It’s already been reported, and ruud will probably decide how to deal with it tomorrow.
The current workaround
Make sure you are on the main page (https://lemmy.world) and not looking at any posts or something like that before hitting the login button.
If you encounter other issues, please make sure to clear the browser cache. The latest upgrade also made changes to the API, which can cause issues with the cached version of the website.A bit off topic, but does anyone else hate how when you click on a post and then go back, the page auto-resets to the top? Wish it would remember how far down you scrolled and return to that point.
Huge thanks to the lemmy.world team over the last couple of days to scale and maintain the instance! There’s a link for donating on the sidebar for lemmy.world - just a couple bucks a month can help us support this instance!
Only being on Lemmy.world for a day. It seems smoother …yes I am a reddit user trying to find a new home. 😂
I cannot connect with Jerboa, it always says user or password incorrect 🙁
Edit: worked after a few minutes
Congratulations! I can’t believe how much you get done, Ruud! You are crushing it
When not overloaded the site works better now than ever. But in general this instancen is kind of unusable now as everything is too slow.
Looks like the server is choking again, we’ve had ~7k new signups so far today 😅
Well, I hope I’m not the only one but I cannot log in. It’s been 4 hours already. Something went wrong. I’m on Firefox mobile.
–> few hours later everything is back to normal
