this post was submitted on 17 Jul 2023
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Asklemmy
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But Hot is broken in Lemmy, it shows old stuff like it's hot. The system is broken, but I think there is a PR on the way.
I've heard that the "hot surfacing old posts" bug is more prevalent on instances that haven't restarted for a while. It still shouldn't happen, but I don't think it's universal.
Hmmm ... it seems fine to me. I'd heard it was broken before though.
In what way is it broken?
Like the parent said, it surfaces old (as in years old) posts as "hot". Not sure if that's the case still, but I have definitely noticed it before.
Ah ... right ... yea I've seen that happen occasionally ... I had actually presumed that something had been changed with that post, perhaps by an admin or something cleaning stuff up, and that triggered a new timestamp for the post.
Maybe still a bug. I'll keep track now of when it happens as it might help sort it out.
But still, that's rarely the case for me. Just went down a fair way in my feed now and there wasn't a single occurrence of it. Could it be particular communities causing it, maybe from instances on older software?
Otherwise though,
Hotseems to do what I'd want. Combine with a bit ofNeworTopfor an appropriate time window and I'm all good.For comments,
Hot/New/Topall do what I'd want too.It's still a bug. My server is at 0.18.2 and I regularly see old posts if I sort by Hot.
Links to Communities or Instances?
FWIW, just checked mine and no problems (and I'm subscribed to plenty of communities).
This is the bottom half of the first page of my subscribed feed and I restarted my lemmy instance yesterday to make a config change.
OK, I couldn't help myself, and checked GItHub. Seems the issue may have been fixed hours ago. Don't know when the new version will ship though.
Seems the issue may been to do with the process that updates the ranks of posts not being able to catch up to older posts, and so they show up with out of date ranks/scores. That process has been optimised, apparently, and should have no problem keeping up with all of the posts.
https://github.com/LemmyNet/lemmy/pull/3617
Yep, that looks bad (obviously). I just went to the science community, sorted by Hot, and yea similar things appear towards the bottom of the feed.
Seems like the sort of thing that would be a minor and fixable bug. I don't have time to chase down github issues right now, but I'll try checking older communities to spot these occurrences. Naively I'd guess something like dates or vote-scored being truncated badly or something.
Thanks!!