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How "heavy" is self-hosting matrix really? (programming.dev)

submitted 2 days ago by chasteinsect@programming.dev to c/selfhosted@lemmy.world

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Hi. I'm kinda of a noob in the world of self-hosting and matrix, for that matter. But I was wondering how heavy is it to host a matrix server?

My understanding how matrix works is each participating server in the room stores the full history and then later some sort of merging happens or something like that.

How is that sustainable? Say in 5 years matrix becomes mainstream and 5 people join my server and each also join 3 different 10k+ people rooms with long histories. So now what I have to account for that or people have to be careful of joining larger rooms when they sign up in a smaller-ish server?

Or do I not understand how Matrix works? Thanks.

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[–] northernlights@lemmy.today 1 points 1 day ago* (last edited 1 day ago) (1 children)

I don't know, can't speak for the devs. It is weird that if you don't implement these API calls buried a bit deep in the wiki, you end up storing every meme and screenshot anybody posted on any instance for the rest of time. But I found these through issue reports with many people asking for these to be implemented by default with for instance a simple setting "purge after X days" and a list of rooms to include or exclude from the history clean-up.

[–] WhyJiffie@sh.itjust.works 1 points 16 hours ago* (last edited 16 hours ago)

are the media files redownloaded from other servers when someone tries to load them? I guess all local media is lost forever, but maybe not remote ones