Can a #Mastodon specialist enlighten me?
Yesterday my host, @mastohost sent me an email to tell me that my media storage was full (which surprised me, especially because I very recently started automatically deleting my oldest posts to avoid just this). Today, rummaging through the admin, I found this very surprising graph in #Sidekiq
What could this be? Or is it the deletion of old posts that triggered that spike in processes? But if old posts have been deleted, why is the media storage full?
@David Well, the media is a combination of local posts and posts that federate with your server. So, even if you deleted all your posts, the media usage can still be high. Like, if you follow a few accounts that post a lot of media, that can require a lot of media storage while it is cached.
On Masto.host cached media is automatically deleted after 7 days - https://masto.host/re-mastodon-media-storage/. You change it to a lower setting in the Content Retention Settings: https://masto.host/mastodon-content-retention-settings/
@mastohost Thanks. And do you know what the spike in the graph could be?
@David Hard to say after the fact. Do you recall changing the Content Retention Settings around the 25th? That would be my first guess, given how long it had been running.
@mastohost No, I didn't.
I merged another account into this one a couple of weeks ago, but that was... a couple of weeks ago, not then.
I remember the timeline not updating for a couple of hours at some point last week. Not sure if it's linked to this.
@David Hmmm.
Could you have deleted the old account around that date?
@mastohost The other account is on Mastodon.social I just merged it into this one, but that was a week or two before.
@David @mastohost how is your cache configured? Isn't your instance caching too much content from other instances? I'm not a mastodon admin but I've seen admins talk about this. They call it "content retention".
https://masto.host/mastodon-content-retention-settings/
(ps: FYI your post did not contain any graph)
@Julianoe Whoops, I forgot to attach the graph. Thanks. (that would explain the lack of response, people are usually eager to reply to technical questions).
I know when I first set up the account, there was an issue with caching, but it was fixed. I guess I may need to check it out again.
@Julianoe Hmmm... Actually, my values are lower than the ones masto.host advises.
I do remember a few days ago my timeline not updating for a couple of hours. I wonder if that was the same moment as the spike on the graph. (hmm the spike lasted more than two days, so not sure)
