this post was submitted on 22 Dec 2023
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Lemmy Support

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Users of lemmy.today are reporting that outgoing federation of posts and comments stopped to work after the update to 0.19.1 about 19 hours ago.

A restart of lemmy software seems to have made it work again for now, but not sure for how long.

In this version its also common with CPU spikes on a regular basis. I assume its the new federation queue that takes more cpu in exchange for being more reliable. But I see a lot of Postgres UPDATE queries that did not occur in previous version. Also sometimes i see ROLLBACK, which I assume should not be happening.

Anyone else has similar issus with 0.19.1?

Relevant thread: https://lemmy.today/post/4382768

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[–] tal 3 points 11 months ago* (last edited 11 months ago) (2 children)

This post, a day before yours on the !lemmy_support@lemmy.ml community, is describing some similar behavior, with some CPU usage at start (at least on the first boot; not clear whether that is a one-off on migration from the text) and then federation problems with 0.19.1:

https://lemmy.ml/post/9563852?scrollToComments=true

After upgrading Lemmy from 0.18.5 to 0.19.1, the lemmy_server process is taking up 200-350+% of my CPU....It seems like my instance isn’t federating properly now tho.

[–] mrmanager 3 points 11 months ago

Yeah that's what we are having here too, huge cpu usage and issues with outgoing federation. Sounds spot on.

[–] Loulou@lemmy.mindoki.com 1 points 11 months ago

I got som weird behaviour, like nothing worked very well, with 0.19.0 so I updated to 0.19.1 and after quite a while (small instance, beefy PC) it starts to work again, it seems.

Except I am now a moderator everywhere. Maybe it doesn't work, I won't try, except asked, so can someone make a post that I can sticky or delete just to see what's happening?

Cheers!

[–] fastfinge@rblind.com 2 points 11 months ago (1 children)

I was having issues with outgoing federation to Mastodon on 0.19.0. I just did the update five minutes ago, so we'll see if that fixes it. If you're seeing this comment I guess it's working at the moment.

[–] mrmanager 3 points 11 months ago* (last edited 11 months ago) (1 children)

What we are seeing is that outgoing federation of posts and comments works after a restart, but new posts and comments made on the local instance are not federating to other instances until the next restart. This is with version 0.19.1.

Also after a restart, the server eats a lot of cpu for several minutes. Im guessing this is normal with the federation queue being processed but cant be sure.

[–] fastfinge@rblind.com 2 points 11 months ago

Good to know; thanks! I’ll keep an eye on it.

[–] bjoern_tantau@swg-empire.de 1 points 11 months ago

Yeah. Had the problems with 0.19.0. Thought it was fixed with 0.19.1. But I guess it was just the restart that fixed it temporarily. Now I've got to remember to check every now and then if my comments federated.

[–] haui_lemmy@lemmy.giftedmc.com 1 points 9 months ago

I‘m on 0.19.3 I think. 0.19.1 caused a ton of issues is why people suggested to immediately upgrade iirc. Would probably upgrade asap.