I can see this community in my feed but at the same time this community can't be found. Is there something wrong with my instance?

Hello everyone! I'm experiencing troubles with federation with other instance. I get a lot of operation timed out in logs

Caused by:
    0: error sending request for url (https://lemmy.world/u/Ricey): operation timed out
    1: operation timed out, context: SpanTrace [{ target: "lemmy_apub::activities", name: "verify_person_in_community", file: "crates/apub/src/activities/mod.rs", line: 50 }, { target: "lemmy_apub::activities::voting::vote", name: "verify", file: "crates/apub/src/activities/voting/vote.rs", line: 57 }, { target: "lemmy_apub::activities::community::announce", name: "receive", file: "crates/apub/src/activities/community/announce.rs", line: 141 }, { target: "lemmy_server::root_span_builder", name: "HTTP request", fields: "http.method=POST http.scheme=\"https\" http.host=random-hero.com http.target=/inbox otel.kind=\"server\" request_id=5955a024-6b1e-458a-b846-156e14fe5368", file: "src/root_span_builder.rs", line: 16 }] }
2023-07-23T20:12:18.815121Z  WARN lemmy_server::root_span_builder: data did not match any variant of untagged enum AnnouncableActivities
   0: lemmy_apub::activities::community::announce::receive
             at crates/apub/src/activities/community/announce.rs:46
   1: lemmy_server::root_span_builder::HTTP request
           with http.method=POST http.scheme="https" http.host=random-hero.com http.target=/inbox otel.kind="server" request_id=f61aeb28-fa30-464f-b9b8-648f480b3f06
             at src/root_span_builder.rs:16 

I get this from many instances but ping to them works just fine. I can't even add new communities now. I've increased federation workers but to no avail

So I have set up my own Mastodon instance and it's empty. What should I do to fill up my instance with content? And how do I do that other users of Mastodon on other instances see my "tweets" on my instance?

cross-posted from: https://random-hero.com/post/51002

Hello everyone! Recently I have removed a couple of bot users from my Lemmy instance via DB query (I removed them from person table). Those bots were subscribing to hundreds of communities on other instances which I don't really want to spend resources on fetching new posts and updates.

I have purged those communities from my instance but they keep reappearing. As far as I can tell, this happens because other instances still "think" that users from my instance (bots, which don't exist already) are still subscribed, and therefore send updates to my instance.

How can I completely get rid of those communities?

Hello everyone!

I'm experiencing troubles when installing and updating dependencies via pacman, download speed is waaay too low like 30-40 kb/s. I've tried reflector and rank-mirors, I even moved mirrors from another machine where everything works well but nothing helped.

As far as I can tell it's not a slow internet connection problem, because when I download torrents the speed is good (up to 7 megabytes per second).

How can I troubleshoot this?

Thanks!

Hello everyone!

Recently my instance have become a target of community subscribers bots, which subscribed my instance to hundreds of communities. I've deleted all those bot accounts manually and enabled captcha and application for registration.

Then I stopped all containers except for lemmy-postgres and ran a following query to purge all empty communities

delete from community where id in (select community_id from community_aggregates ca where ca.subscribers = 0 for update skip locked);

At first I thought that it worked because all communities and related posts have disappeared, but when I started all the other containers, lemmy for some reason again started adding back those communities with 0 subscribers to my database.

What am I doing wrong? How do I purge them? Also, I would appreciate on any guide how to remove all dangling images (which don't have any reference from db) in pict-rs.

Thanks!

There have appeared hundreds of communities on my instance I have never searched. Where do they come from? Is it some spam attack? How do I prevent this, and how do I get rid of them?

Is it possible to change lemmy's domain after I have already started it once and produced some content? I am thinking of moving to a subdomain but I'm not sure if it will go smoothly