How can I reduce the amount of storage used by my Lemmy instance? (lemmy.world)

submitted 10 months ago by TrinityTek@lemmy.world to c/selfhosted@lemmy.world

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I've had a Lemmy instance running on a VPS with 100 GB of storage for a few months and it has filled up. I've been searching for ways to reduce the amount of storage used but so far I am coming up empty. Can anyone point me in the right direction?

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[-] bdonvr@thelemmy.club 48 points 10 months ago* (last edited 10 months ago)

Firstly move pict-rs to object storage. My instance's pict-rs uses 150GB alone. I pay less than $2/mo to put it on Cloudflare R2. Backblaze B2 might be even cheaper. Instructions: https://crates.io/crates/pict-rs#filesystem-to-object-storage-migration

If that doesn't help enough and you're comfortable with SQL, you can purge the unnecessary entries in received-activities.

Command: delete from received_activity where published & NOW() - INTERVAL '3 days'; (Lemmy has problems with ampersands so you'll have to edit it)

Then do a vacuum full received_activity; to reclaim the space.

This deleted 98 million entries for me and reduced my database size from 49GB to 20GB a week ago when I started running out of space. No other effect as far as I can tell. Thanks @illecors@lemmy.cafe

[-] TrinityTek@lemmy.world 7 points 10 months ago

Thank you, that SQL command looks like exactly what I'm after! I'm going to give that a shot. I appreciate the help!

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this post was submitted on 15 Nov 2023

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