this post was submitted on 17 Mar 2024
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Aotearoa Daily Kōrero 18/3/2024 (self.newzealand)
submitted 8 months ago by Dave to c/newzealand
23 comments fedilink hide all child comments
 

Welcome to today’s daily kōrero!

Anyone can make the thread, first in first served. If you are here on a day and there’s no daily thread, feel free to create it!

Anyway, it’s just a chance to talk about your day, what you have planned, what you have done, etc.

So, how’s it going?

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[–] Panq 2 points 8 months ago (1 children)

At least federation is doing something with each action. Would be nice if they could be batched, though.

Dumb question: What happens whenever someone spins up a new instance?

[–] Dave 2 points 8 months ago

Nothing, initially.

When a user subscribes to a community on another instance, the user's instance (let's say lemmy.new) asks the community instance (let's say lemmy.world) to send them updates (the instance doesn't get anything for a community where there are no local subscribers).

From this point forward, if lemmy.world is sending out federation activities for that community, it will send the update to lemmy.new as well.

If you're wondering about the years of history on that community, it's not federated to the new instance. The new instance only has the posts grabbed at the point of initial subscription of the first subscriber (a few pages of posts, unsure of the exact criteria), then any going forward. Not the history, which it will probably never have.

I believe you can grab a specific post by taking the URL from the host instance (lemmy.world, in the example) and searching for it on the new instance (lemmy.new), but this would only retrieve that specific post and I believe no comments.

There's no widescale backfilling of previous posts and comments.