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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[–] WeAllShineOn97@lemmy.world 5 points 2 years ago (1 children)

My first comment on here! Thanks for creating this, this looks fantastic and a great Reddit alternative. Keep up the great work.

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[–] ghariksforge@lemmy.world 5 points 2 years ago

Many thanks for the transparency! This is great.

[–] FranconianBiker@lemmy.world 5 points 2 years ago

Lemmy seems pretty slow. I wonder how many more people have joined here now.

[–] sigh@lemmy.world 5 points 2 years ago

Fuck yeah upgrade hype

[–] itadakimasu@lemmy.world 5 points 2 years ago

Thank you! I love it here. Sending good vibes

[–] klp@lemmy.world 5 points 2 years ago

Thanks for the update. I especially like the transparency on not only the β€œupgrade” itself but also the potential issues encountered, together with the solutions. Seems rare nowadays, or I’m just seeing less and less people doing this.

[–] anthimatter@lemmy.world 4 points 2 years ago

Even using Tor, the site load-times seem a lot snappier. Exciting times.

[–] albertye@lemmy.world 4 points 2 years ago* (last edited 2 years ago) (1 children)

I can't login from my main browser even if I clear the cache and cookies, if I use other browser it works

Edit: I fixed it just by changing my browser language to English and restarting it, hope this is useful for someone.

Also, thanks to Ruud and team for the hard work, everything seems to work really well and fast.

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[–] Richie@lemmy.world 4 points 2 years ago (1 children)

Awesome! Loading issues are still the bane of Lemmy's existence though, or at least it is for me and my experience with Lemmy. Everything just loads so slow. Sorting is still broken as well. Communities that I KNOW that are active just show as blank for me no matter what I sort by.

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[–] matt@lemmy.world 4 points 2 years ago

Also chipping in to give my appreciation, really enjoying Lemmy through lemmy.world!

[–] nulldev@lemmy.vepta.org 4 points 2 years ago

New user registrations closed until tomorrow

Warning: Be careful, this might trigger this bug here: https://github.com/LemmyNet/lemmy/issues/3422#issuecomment-1616112264

[–] itsnotlupus@lemmy.world 4 points 2 years ago

I like it.
The site feels a lot better to me, and seems significantly gentler in terms of browser resource consumption.

[–] mintiefresh@lemmy.world 4 points 2 years ago

We're alive!!!

Thank you :)

[–] Panda@lemmy.world 4 points 2 years ago

Thanks so much for everything!

[–] MicahParsons@lemmy.world 4 points 2 years ago

This is really cool that this gets shared. Thanks for all of the info!

[–] Jackolantern@lemmy.world 4 points 2 years ago

Hey man I just want to say thank you for your hard work.

[–] GlockenGold@lemmy.world 4 points 2 years ago

Excellent news! I can browse Lemmy on my phone again, many thanks to you @Ruud and everyone else who worked on this!

[–] Tamhenk@lemmy.world 4 points 2 years ago

Awesome work guys! The NEW front page of the internet is born.

[–] LemmyKravitz@lemmy.world 4 points 2 years ago

Great stuff!

[–] NakedGardenGnome@lemmy.world 4 points 2 years ago

Is there a way to follow the update status while this instance is down?

I knew the update was coming, so I expected the downtime, but I could not find any info about when it was expected to be up and running again?

Thanks for the great and ongoing work put into managing this endeavor!

[–] AlmightySnoo@lemmy.world 4 points 2 years ago

Not sure what fixed it (I'm sure though on my side I did nothing since the last failed login) but the login form finally works again!

[–] BURN@lemmy.world 4 points 2 years ago

This looks like it’s exposed some weaknesses, and it sounds like the team has it under control.

I’m moving right now and can’t dedicate time to development, but once I’m up and running I should be able to start contributing.

Scalability is always a concern with these sites, so there’s plenty to do to improve that

[–] FollyDolly@lemmy.world 4 points 2 years ago

We're back baby!

[–] decadentrebel@lemmy.world 4 points 2 years ago

Special thanks to the other guys for helping make this update possible. Site is snappier than ever and the UI looks fantastic.

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