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 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€“] BendyLemmy@lemmy.world 7 points 2 years ago

Wow - we have a new defniition of 'awesome dudes'.

Thank you.

[โ€“] guyman@lemmy.world 7 points 2 years ago (2 children)

Lot of network errors, but it could be jerboa.

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[โ€“] Fluwunator@lemmy.world 7 points 2 years ago

Loving lemmy more and more!

Just so refreshing getting this much transparency.

[โ€“] CartographerOne@lemmy.world 7 points 2 years ago

I'm sure there will be bugs for others but it's smooth and bug free for me. Thanks so much for the devs and contributors.

[โ€“] kuneho@lemmy.world 7 points 2 years ago

The instance just got so much more faster and stable, it's amazing. Keep up the good work!

[โ€“] AndreTelevise@lemmy.world 7 points 2 years ago* (last edited 2 years ago)

It's faster now, and we finally have buttons for rich text features! Congratulations!

Update: upvotes are a bit broken and weird right now, I need to refresh every time to see that I upvoted. But that's really the only issue I see right now.

[โ€“] LolaCat@lemmy.world 7 points 2 years ago

Just signed up and everythings working well for me!

[โ€“] Ryumast3r@lemmy.world 7 points 2 years ago

Will confirm at least for me I'm no longer having any issues.

Thank you for all your hard work!

[โ€“] WigglingWalrus@lemmy.world 7 points 2 years ago

๐ŸŽ‰ Great work!

[โ€“] JeanMiaouss@lemmy.world 7 points 2 years ago

Hey, thanks for your hard work, just want to let you know that login doesn't work for me in incognito mode or on any app.

[โ€“] Secret300@lemmy.world 6 points 2 years ago

we created extra lemmy containers to spread the load. (And extra lemmy-ui containers). And used nginx to load balance between them.

Had no idea nginx did that. There's so much I need to learn

[โ€“] 2014MU69@lemmy.world 6 points 2 years ago* (last edited 2 years ago) (6 children)

I am still getting errors half the time I do anything while using jerboa

Website is working great though

Edit: It's suddenly working a lot better now. Hopefully I am not jinxing myself.

[โ€“] lemann@lemmy.one 5 points 2 years ago (3 children)

You running the latest Jerboa version?

If you can no longer see your subscribed communities in the sidebar, you could be on an older version that doesn't fully support v0.18.x

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[โ€“] monstad@lemmy.world 6 points 2 years ago

was struggling for a while, but it seem to be nice and fast now.. thank you!

[โ€“] newthrowaway20@lemmy.world 6 points 2 years ago

Having login issues on the browser. Not logging in at all. But on liftoff where I was already logged in, everything seems to be working.

[โ€“] guyman@lemmy.world 6 points 2 years ago

Lot of network errors, but it could be jerboa.

[โ€“] erik1984@lemmy.world 6 points 2 years ago

Thanks for the hard work on the upgrade! Much appreciated although I'm only using the web version (not needing specific client apps). Lemmy World feels quite 'snappy' when browsing now.

[โ€“] liaizon@social.wake.st 6 points 2 years ago

@ruud oh wow 0.18.1 fixed the broken federation/webfinger issue!!! this is great news

[โ€“] Grangle1@lemmy.world 6 points 2 years ago

Login problem is fixed for me, yay! Back on Jerboa and here on the browser! Thanks for your hard work and for putting up with me, lol.

I'm getting network errors that aren't allowing me to actually view content on Jerboa right now, though, but at this point I'm assuming it's a Jerboa thing and not a problem with the instance.

[โ€“] Yaxoi@lemmy.world 6 points 2 years ago (3 children)

I'm curious; is this instance pysically running on a local private server somewhere or in the cloud in some data center?

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[โ€“] varnia@lemmy.world 6 points 2 years ago

Updated Jerboa. Thanks for your efforts, transparency and insights.

[โ€“] BitOneZero@lemmy.world 6 points 2 years ago (1 children)

Edit still see some performance issues. Needs more troubleshooting

Federation overheard is putting a lot of load on servers. Creating one task for every single post, comment, and vote in RAM-only queue.... pending changes: https://github.com/LemmyNet/lemmy/pull/3466

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[โ€“] Tontoz@lemmy.world 5 points 2 years ago

Really like seeing posts like this that explain what's going on. Thanks for all the hard work!

[โ€“] AlmightySnoo@lemmy.world 5 points 2 years ago (2 children)

To everyone having a login problem, it seems that resetting the password solves the issue! Maybe this means that the upgrade corrupted the stored hashes somehow?

[โ€“] Grangle1@lemm.ee 7 points 2 years ago (3 children)

Resetting the password gets you in that one time the password was reset. Trying to login after that still doesn't work.

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[โ€“] dragontamer@lemmy.world 5 points 2 years ago (2 children)

Login page is 404 erroring to me, at least the XmlHTTPRequest is that's associated with the button.

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[โ€“] Mishaye@lemmy.world 5 points 2 years ago

Thanks! Seems to be working fine so far.

[โ€“] plumbercraic@lemmy.world 5 points 2 years ago

Excellent. Now I can login with jerboa ๐ŸŽ‰

[โ€“] EmielBlom@lemm.ee 5 points 2 years ago (2 children)

Nice, really liking the update! Some questions about development for the fediverse: Is the code for running Lemmy written by one or person or a smome core team?

Is there any decision making process as to which features will be worked on in the next release or which bugs to prioritize?

In theory what would happen if the original developers started making changes that other people don't agree with? Would we get a fork then where servers have to choose to adopt it or not?

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