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

submitted 4 months 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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[–] WhyJiffie@sh.itjust.works 1 points 4 months ago* (last edited 4 months ago) (1 children)

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

[–] northernlights@lemmy.today 1 points 4 months ago* (last edited 4 months ago) (1 children)

In my understanding that's the idea, the local ones are lost unless another federated instances synced them. As for the remote ones, maybe they're backed up but I really don't care for an instant messaging platform to not have a rear view past 2 weeks.

[–] WhyJiffie@sh.itjust.works 1 points 4 months ago

unless another federated instances synced them

I don't think the homeserver tries to fetch media remotely that was local but since deleted

we often talk about how discord is a black hole of information, but this is worse than that