I cant seem to get timely post federation to my instance (moist.catsweat.com) from lemmy.world. I might see a new post every few hours instead of every minute or so.
posts from other lemmy instances (lemmy.ca, lemmy.ml, dbzer0, etc) have no problem.
i see a ton of lemmy.world traffic in my nginx logs… it seems very specific to ‘new posts’. voting/comments seem to come through no problem once the post shows up.
ive checked a few other instances similar to mine, and they are not having this issue. so it seems something specific to lemmy.world and my instance.
i do recall a similar issue several months back, and it involved a lemmy.world admin resetting some outbound queue.
any ideas?
Nothing4You@programming.dev 6 months ago
I can’t tell you why you’re lagging but you’re clearly lagging quite a bit behind.
which country is your instance located in?
did you (or someone else on your instance) recently subscribe to a bunch of high traffic communities on lemmy.world, which would make lemmy.world send more activities to you?
lemmy by default only sends activities in a community to another instance if there’s at least one subscriber to the community on that instance. if you’re located far from finland, where lemmy.world is located, you might have been able to keep up just enough before this, although this isn’t the first time as the graphs above show.
CanadaPlus@lemmy.sdf.org 1 month ago
Hey, sorry for the late reply, but I’m trying to figure out who runs this graph, because if it needs something like a bit of funding to store data for longer periods I’d like to help. Do you know, or know where you heard about it?
Nothing4You@programming.dev 1 month ago
Hi, I run this.
What benefit do you expect from longer retention periods and how much time did you have in mind?
The way data is currently collected and stored keeps the same granularity for the entire time period, which currently uses around 60 GiB for a month of retention across all monitored instances.
originalucifer@lemmy.world 6 months ago
its running on AWS, US. you can see on 4/24 i finally solved for a long running bottleneck (disk writes), and it was smooth sailing until recently.
im not sure if anyone else has subscribed to any new communities, but ive been subbed to most of the big ones for awhile.
i don’t see any saturation in the server network activity, connections, etc. my queues are not overloaded, and as i mentioned other instances are very performative.
maybe i just need to be patient and let it catch up. those graphs are awesome
Nothing4You@programming.dev 6 months ago
lemmy currently only sends one activity per receiving instance at a time, so there is a round trip for every single post, comment, vote, etc., before the next activity will be sent. you wouldn’t see any increased number of connections, as there’s only a single one.
do you have access logs for
/inboxwith the lemmy.world’s user agent? you might be able to derive some information from that if requests increased over time or something, maybe also response status codes?