this post was submitted on 18 Nov 2025
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Hello Dave,

It seems there is an issue with lemmy.world. Votes and comments are delayed, for an example this post: https://lemmy.nz/post/30741653.

I think this has been happening since yesterday, and I only realized it today.

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[–] BlueEther@no.lastname.nz 3 points 1 month ago (1 children)

looks ok here, 46 up votes and 5 comments?

[–] throws_lemy@lemmy.nz 2 points 1 month ago (1 children)

It looks like it's been fixed, thanks Dave!

[–] Dave@lemmy.nz 2 points 1 month ago* (last edited 1 month ago) (1 children)

Sorry I took a while to see this, but it seems like it was an issue on the Lemmy.world side. Not with everyone, but definitely a few.

Here are a selection of the largest instances (and some smaller nearby ones), on the right (easier to see on desktop, and is time sensitive since it shows the last 24 hours, so I've screen shotted below) there is a table, and the "Max" column shows the maximum number of ActivityPub activities that were waiting to send from Lemmy.world to the other instance. Many never got more than a few hundred (a few minutes behind perhaps, probably less). But you'll see Lemmy.nz, slrpnk.net, sh.itjust.works, and lemmy.ml all have the same peak, and the graph shows on the heading up side that they are all in perfect sync - i.e. lemmy.world was unable to send activities to any of us at that time. Lemmy.nz took a little longer than others to catch up, presumably because we are the furthest distance away. Lemmy.world is sending in parallel now but each thread still makes the round trip so we will always be slower than other closer instances for these big catchups.

graph showing as described and linked above - basically that a selection of instances fell further and further behind Lemmy.world then suddenly things got better and they caught back up almost as sharply as they fell behind. The graph looks like a triangle, but the down side shows varying speeds of recovery depending on the instance

[–] Dave@lemmy.nz 1 points 1 month ago

It seems Lemmy.world restarted the process and that fixed it. It was impacting others like piefed.social as per this piefed post.