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Lemmy Pict-rs storage requirements? (lemmy.ml)

submitted 2 years ago* (last edited 2 years ago) by [email protected] to c/[email protected]

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I might take over one of these one-year-free hosted Lemmy instances on my server infrastructure, but I read several times now that Lemmy's image hosting system Pict-rs is using a lot of storage quickly.

The server I could run this on is limited to 32gb ssd storage with no easy way to expand it.

Is there some way to limit the image storage use and automatically prune old images that are not user or community icons or such?

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[–] [email protected] 1 points 2 years ago (4 children)

Is deduplication supported by re-using images already in storage if newly upload images share the same hash with them?

[–] [email protected] 1 points 2 years ago (3 children)

Yes. It uses sha256 rather than perceptual hashing, but that's Good Enough™️

[–] [email protected] 1 points 2 years ago (2 children)

Why not SHA-512 or SHA3?

[–] [email protected] 1 points 2 years ago (1 children)

I chose it at the start of the project 🤷

[–] [email protected] 1 points 2 years ago

Maybe is it worthy to make a smooth change to this in the future? https://en.wikipedia.org/wiki/SHA-3#Comparison_of_SHA_functions