Lemmy

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Everything about Lemmy; bugs, gripes, praises, and advocacy.

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How does comment deleting work, between instances? (aussie.zone)

submitted 1 year ago by briongloid@aussie.zone to c/lemmy@lemmy.ml

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I've been looking between some instances to see how they look to each other and I came across this post/comment.

Source post/comment

off-instance post/comment

As you can see the original comment was deleted by the creator, but is still intact on the off-instance copy. I had presumed that each instance would relay the change, whether be an edit or deleted by creator, but perhaps its either an Admin setting or there was no event to push the change.

Just found it interesting and wouldn't mind understanding more about how it works.

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[–] pe1uca@lemmy.pe1uca.dev 5 points 1 year ago (1 children)

Post, edits and deletes are federated in lemmy.
The Devs have said the issue comes from the internet itself where instances could be some times not reachable when the activity is sent.
There's also the case where a post hasn't showed up in all instances or has more comments in one instance than others.

[–] sugar_in_your_tea@sh.itjust.works 5 points 1 year ago (1 children)

Is there a mechanism for it to be eventually consistent? Like it lives in a "failed messages" queue or something. Or is this more like a fire and forget mechanism?

[–] lwuy9v5@lemmy.world 6 points 1 year ago

I sure hope so :[ The idea of a completely-not-consistent social media future feels.... bad.