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How do I know which pics on my Lemmy instance are safe to delete (lemmy.org.il)

submitted 1 year ago by maor@lemmy.org.il to c/selfhosted@lemmy.world

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$ cd lemmy-dir
$ du -sh *
456K    lemmy-ui
15G     pictrs
4.3G    postgres

Guys this is no longer funny please I feel literally chased by the "no space left" message. Please help I don't need those pics I did not upload them

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[–] nick@campfyre.nickwebster.dev 1 points 1 year ago* (last edited 1 year ago)

I ran this query:

select distinct thumbnail_url as url from post where not local and thumbnail_url like 'https://campfyre.nickwebster.dev/pictrs%'

(replace with your instance's url)

I then sent delete requests to /internal/purge on pictrs to delete all of those old thumbnails, which cleared out a lot of space. After deleting the thumbnails I ran an UPDATE query to set all of those old thumbnail URLs to null in the DB. I also patched the version of lemmy that I run to stop caching thumbnails in the future. Hope this helps!