Sorry if this seems like a silly question but I have noticed over the last few months my feed(?) has started to act odd.
No matter what I do I don’t see any posts from .world. I checked and mander does not seem to block .world (kinda why I liked this instance) and even weirder is how my feed gets filled with mostly .ml posts with almost no activity no matter how I sort.
This did not happen before and got me thinking, I don’t even know how this works across federated instances.
Does anyone know:
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How does the sorting work on an instance? Is it all the same no matter what instance it is?
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Did anything change in the last few months, that would cause all .world (and I assume others) posts to not show?
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Other then changing instances what can I do to mitigate the weird slanted results?
The Lemmy algorithm:
https://join-lemmy.org/docs/contributors/07-ranking-algo.html
The instances communicate between each other using special bots in the background that transport info between instances. Dot world is too big and makes too many requests to other instances. Most instances are reducing the number of transport bots back to dot world right now. There is supposed to be a fix in the next Lemmy version, but the code base is somewhat slow moving due to only two devs and it is written in Rust. Rust is a hard language like C, and not too many here are able to contribute to it, even though it is like the new gold standard of code.
So you might see a delay between posting and replies or the interaction may come in bursts that correspond with the transport bots carrying content between instances as the host admin have configured their instance.
I believe there is some work being done on an alternative code base written in python with flask it has lots of promise and i recon with a bit of extra work it might allow for mastodon integration into one server which would be cool af.
Really want to get to the stage where an account is just a private key I hold and all federated services can work with a single username.
Imagine having a single username which is for all services.
I believe there is some work being done on an alternative code base written in python with flask it has lots of promise and i recon with a bit of extra work it might allow for mastodon integration into one server which would be cool af.
Otherwise, for Mastodon integration, there is mbin with https://kbin.run/ for instance
Huge sync issues between Lemmy world and mander: https://grafana.lem.rocks/d/cdfzs0dwal3pca/federation-health-time-behind?orgId=1&var-instance=All&var-remote_instance=mander.xyz&var-remote_software=All&from=now-1h&to=now
I posted about it on !mander@mander.xyz a few days ago.
Another reason to not have all communities on LW
Thanks for the reply (I was worried no one would) but would that cause the weird behaviour I am seeing? The timing does not seem to match but it could make some sense.
If what you are saying is the cause then Lemmy as a federated whole may now be effectively split up due to sync issues?
Actually there are some comments from other people: https://reddthat.com/post/20632337?scrollToComments=true
Most of them are from LW, so they won’t federate before a few days.
The issue is that if one instance has too many updates to send to another one (in this case LW to mander) it starts to create delays.
This mostly happens due to LW size, as you can see Reddthat has no issue
Oh wow, yeah its like night and day. Well now I guess I have to figure out a fix.
Sad times if I have to find another instance, again.
Any ideas what can be done longer term to address this (in general)?
Since I can’t see anything here I will check on .world
If you’re looking for a new home, I’ve enjoyed Lemmy.zip. I think it’s on the smaller side, but I prefer that to everyone being on a few instances.
This bas to be adressed by the mander admins.
For instances, i would suggest lemm.ee or sh.itjust.works
Maybe I should just crosspost this to !mander@mander.xyz
Yes, sorry, there was some serious lagg in fetching posts from Lemmy World that persisted for several days and accumulated a 1-week delay.
But after upgrading Mander it is now fetching data from LW quite rapidly and it should be back in-sync in about a day and a half from now.
If you are curious about the ranking algorithm, there is some info here: https://join-lemmy.org/docs/contributors/07-ranking-algo.html
Thanks, I have been watching the graph of the lag behind time and its nice to see it now at 6.1 days.
I find it satisfying to see the graph come down :)
Yeah, first time I have been cheering for line go down that I can think of.
Almost under a day. I can now see .world, midwest.social, .ee and others in my feed.
To this day I still have no idea what “hot” even means, even on places like Reddit, where I used to lurk before that place f***ing exploded.
I decided to do a bit more then just “hot” and “active” and its the same across all of them except “controversial” and “Most comments”.
“Most comments” has some .world posts in it but does not match using another instance. The only one that seems to line up is ironically sorting by “controversial”,
This is really getting weird and is making it hard to use Lemmy for me. Like I like some of the posts listed but I can not believe the largest instance is not posting anything. To make me more confused this also started at the same time Mander got really slow, and to add to the weirdness refreshing the page gives entirely different sorting of posts maybe one out of five times.
Which one is your other instance?
Used to have .world but for this I just test without logging in.
Should be the same across any instance.
Hot: calculated using the current score (up/down votes) in combination with how new it is.
Active: calculated using current score in combination with the timestamp of the newest comment:
https://github.com/LemmyNet/lemmy/blob/main/crates/db_schema/src/aggregates/post_aggregates.rs
Well, I can see your post on l.w, so it’s not a total disconnect!
I wonder if there are any bugs in the new version of lemmy—do you know if mander has updated yet? The l.w admins tend to drag their heels updating because of some previously rough update experiences (I think mostly down to the size of the instance compared to others)
There were some issues with federation last time, perhaps it’s something similar
The issue is from LW to mander, there is a huge delay
Holy shit, a week delay is mad
Well there is a big issue with LW to any smaller instances if this is working like you think. Right now being on mander is like having less then half of lemmy and I would guess that if it can happen with mander it can/is happening with others.
I’ve been noticing this behavior on Mander too. I’ve been using my alt world account for now. I really hope the next update fixes things.
