this post was submitted on 08 Jan 2024
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Sometime early this morning, our database started having issues, most likely due to a disk corruption issue.

Unfortunately the postgres database was unrecoverable, and we had to restore from a nightly backup, so a few hours of posts and comments will be missing.

Apologies again for the downtime, and for the disruption.

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[–] [email protected] 84 points 10 months ago (2 children)
[–] [email protected] 33 points 10 months ago (2 children)

Oh holy cow, those servers are running at some pretty high temps!

[–] [email protected] 18 points 10 months ago

Liquid cooling required

[–] [email protected] 7 points 10 months ago

That's the power of optimized rust 🦀🦀

[–] [email protected] 12 points 10 months ago

Holy fuck. I thought this was a joke before I saw who was posting it.

[–] [email protected] 43 points 10 months ago (1 children)

Do you know that you are doing to me?! I actually had to work while lemmy was down...

[–] [email protected] 15 points 10 months ago

no kidding. this particular FWP was... unpleasant.

[–] [email protected] 30 points 10 months ago (1 children)

Awesome that it's back up! Thanks for all your hard work

[–] [email protected] 21 points 10 months ago
[–] [email protected] 27 points 10 months ago (2 children)

How does lemmy federation work in this case? Conceivably after being restored from backup the lemmy.ml instance could see those few hours of lost history as federated to other lemmy instances and resync it back as the host instance. Obv I'm vastly oversimplifiying things but what happens today?

[–] [email protected] 17 points 10 months ago (1 children)

I believe they're lost, as recieved apub content doesn't have the original post / comments, but I'm not totally sure. cc @[email protected]

[–] [email protected] 16 points 10 months ago (1 children)

It strikes me that there is the potential to use trusted remote servers as a means of recovering the lost data. I mean, nearly every lemmy instance except lemmy.ml will have copies of the missing data, and given the hugely redundant availability of that data (including the ability to compare from multiple sources to establish/verify trust), using that data to rebuild missing content seems like it could be useful functionality.

[–] [email protected] 3 points 10 months ago

If I understand, federating contents through ActivityPub only works once. Sounds a good feature to re-download contents again, but may introduce additional work as there should be some way to know if a content is missing then another job to rebuild

[–] [email protected] 3 points 10 months ago

That doesnt work because we generally cant trust remote servers. Plus we dont even know where to fetch from, so wed have to run a complete crawl of all known instances which isnt practical.

[–] [email protected] 24 points 10 months ago

No worries, glad to hear you got it up and running again :)

[–] [email protected] 23 points 10 months ago

No apologies necessary. Y’all have been working overtime to get things back in order, and I appreciate it!

[–] [email protected] 19 points 10 months ago

I AM TALKING IN ALL CAPS BECAUSE I AM MAD

HOW DARE THIS FREE SERVICE I USE GO DOWN HOW EVER WILL I POST MEMES FROM MY OPAL THRONE

Thanks for coming to my Ted talk.

~~also thank you for hosting us and working on the issue!~~

[–] [email protected] 11 points 10 months ago

looks like some replay action too. my instance just got spanked.

[–] [email protected] 8 points 10 months ago

Welcome back!

[–] [email protected] 8 points 10 months ago* (last edited 10 months ago)

I saw the "502 Gateway" HTTP error message, but I never even closed my browser tab. I refreshed again today and Lemmy.ml was back online! Thanks for your hard work!

[–] [email protected] 7 points 10 months ago (1 children)
[–] [email protected] 12 points 10 months ago (1 children)
[–] [email protected] 6 points 10 months ago (1 children)

Please tell me you've been saving this picture just for this type of occasion. 😂

[–] [email protected] 4 points 10 months ago

Nope, only searched Lemmy server. 🤥

[–] [email protected] 5 points 10 months ago

Glad to see it back

[–] [email protected] 2 points 10 months ago

Remember to make regular backups, kiddos.