[Bug]: Posts and comments are not federating consistently on 0.19.3

[andrewgioia]

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Summary

We're experiencing a problem similar to some previous federation issues here (#3101 and #3525 most specifically) where various posts and comments are not consistently federating out to other instances.

I have a slew of examples here but restarting the docker container(s) and even manually syncing posts through search are not working at all. A recent one is below in steps to reproduce.

Using phiresky's instance checker it's also showing some strange sync dates and lagging instances: https://phiresky.github.io/lemmy-federation-state/site?domain=mtgzone.com

Is there anything we can do to try to debug this? Is there a way to force resync?

Steps to Reproduce

Missing posts:

1. Go to mtgzone.com/d/digital and note the post "Worst Midweek Magic Ever" has 2 comments.
2. View this community on sopuli.xyz at https://sopuli.xyz/c/digital@mtgzone.com. The post does not appear at all.
3. The missing posts are even more pronounced on my own personal instance

Missing comments:

1. Go to https://mtgzone.com/post/572967 and note 15 comments
2. This same post on lemmy.world has 14 comments.

Technical Details

Running lemmy v0.19.3 on Ubuntu via docker.

Version

BE 0.19.3

Lemmy Instance URL

mtgzone.com

[Nutomic]

I suggest you join the admin chat on matrix, where people are looking into these problems.

[yo-scottie-oh]

Edit: After reviewing the conversation history on Matrix and asking for help with my specific example on Matrix, I believe my example is likely a different root cause from OP's.

OP's issue seems to be caused by a lack of subscribers on those remote instances, whereas the answer for my example is in the mod logs, specifically for the author of the post in my example.

My original comment: Adding another example of a missing post for testing purposes:

• Go to https://lemmy.world/c/caps and note the post Thanks for the chats guys, hope to resume them soon, which has one comment.
• View this community on lemm.ee at https://lemm.ee/c/caps@lemmy.world. The post shows up there, too.
• View this community on lemmy.ml at https://lemmy.ml/c/caps@lemmy.world. The post does not show up.