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[Done] Server will be migrated (More power!) (self.lemmyworld)

submitted 2 years ago* (last edited 2 years ago) by ruud to c/lemmyworld

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So after we've extended the virtual cloud server twice, we're at the max for the current configuration. And with this crazy growth (almost 12k users!!) even now the server is more and more reaching capacity.

Therefore I decided to order a dedicated server. Same one as used for mastodon.world.

So the bad news... we will need some downtime. Hopefully, not too much. I will prepare the new server, copy (rsync) stuff over, stop Lemmy, do last rsync and change the DNS. If all goes well it would take maybe 10 minutes downtime, 30 at most. (With mastodon.world it took 20 minutes, mainly because of a typo :-) )

For those who would like to donate, to cover server costs, you can do so at our OpenCollective or Patreon

Thanks!

Update The server was migrated. It took around 4 minutes downtime. For those who asked, it now uses a dedicated server with a AMD EPYC 7502P 32 Cores "Rome" CPU and 128GB RAM. Should be enough for now.

I will be tuning the database a bit, so that should give some extra seconds of downtime, but just refresh and it's back. After that I'll investigate further to the cause of the slow posting. Thanks @[email protected] for assisting with that.

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[–] [email protected] 6 points 2 years ago (7 children)

The code is open source on GitHub and the backend is written in Rust.

I have no idea how it goes in terms of scaling…

[–] pleasemakesense 2 points 2 years ago (6 children)

Apparently it's not ideal at Horizontal scaling (that's what I've picked up from reading stuff here, could be wrong)

[–] [email protected] 1 points 2 years ago (5 children)

I think they can horizontally scale the Postgres maybe? Postgres is probably the biggest performance bottleneck.

[–] bobaduk 3 points 2 years ago

Databases are also the hardest bit to horizontally scale. Web servers are easy cos they're (usually) stateless . It's state that's hard to scale out.

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