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Are all these thousands of lemmy servers useless?
(lemmy.world)
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this post was submitted on 12 Jun 2023
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I'm not sure your second paragraph is correct. First of all, it's "just in time" so will only be replicated if somebody on that instance is following it. But more importantly, I read a statement from a server owner somewhere that the software purges older content regularly (and refetches is "just in time" when somebody tries to view the old content) to keep storage size down.
If this is the case, then wouldn't his fitst paragraph be incorrect also? Because if it is "just in time" with quick purging, the main server still has to constantly serve the instance server the content. It would only be beneficial if many instance users are trying to view the exact same content at around the same time (so for the "massive" communities maybe?)
From my understanding you are correct. Each instance is responsible for serving all of the content of the communities created on it. So many small instances with a smaller amount of communities = good, a few huge instances with lots of communities = bad.
The purging of older content is good news I didn’t know that.