I'll upvote, that's the best thing I can do for you. I have completely no idea how to help you, but maybe with more upvotes people who do know see your post!
this post was submitted on 24 Jul 2023
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What table is the culprit? I have a cron job to shut lemmy down at 3:00am every morning and I run a TRUNCATE activity via the psql utility. If I didn't do that, my database size would swell to 50GB or more.
That's a good point. I've just been assuming that the media is the issue, but perhaps it's just the pure database 🤔 Does doing a truncate purge the media? If not, wouldn't I just be orphaning all these pictures, etc that have been downloaded? Also what about the fallout of your own users? I don't really want to drop the content that was created on the instance itself
Unfortunately, it a truncate does not purge the media. The media is controlled by pict-rs and it has its own database. I cannot speak to fallout of my own users because my Lemmy instance is strictly my own. I don't want to get into a situation where I am hosting accounts and have to deal with moderation and abuse. There are a lot of legalities surrounding this and I don't need the headache.
I suggest trying to unsubscribe from each and every community that is delivering to you and figure out why you are still getting incoming data.
Media isn't federated. The media should just be referenced with a link to the original source.
Normally, the largest use of disk space is the Activity table. It is stored for six months, and only useful for debugging. Below is the Issue, along with SQL commands to check and purge this debugging table. Let us know if this was the issue
Media absolutely gets federated. My pictrs folder is 10GB. Another 10GB is the activity table, so I tip my hat to you for finding that. I still have a very significant amount of worthless data on my disk though
Oh my, you are correct. Images are being federated some of the time.
Like most everything else, the intended behavior isn't documented anywhere.
Nope. Because I know I'm going to be a complete purge and I know that no one has uploaded any media, I just nuked the folders after being reasonably certain nothing bad would happen. I think that I'm going to end up writing a periodic proper purge script that is going to directly talk to pict-rs and will be awful for me to do because I know fuck all about docker, so some experimentation will be necessary.