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PaperclipPerfector  22d ago (text post)   1676 thread views

Friday Fun Thread for November 1, 2024

Be advised: this thread is not for serious in-depth discussion of weighty topics (we have a link for that), this thread is not for anything Culture War related. This thread is for Fun. You got jokes? Share 'em. You got silly questions? Ask 'em.

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A simple solution is to set up the app on one box and a standby on the next box. If it goes down, you simply respond and assess and confirm yes, the primary is down. Lets start the standby.

Then the standby goes down, or doesn't start. Your next move? You start debugging shit when people around you run with their hair on fire and scream bloody murder at you, the system is down over 2 kiloseconds and you still didn't fix it yet, are you actually sent from the future to ruin as all?

And note that this will definitely happen at 3am, when you are down with the flu, your internet provider is hit by a freak storm and your dog ate something and vomited over every carpet in your house. That's always how it happens. It never goes the optimistic way. And then you realize it'd be cool if you had some tools that can help you in these situations - even it it means paying a little extra.

a bulk of my experience is in quant trading where every minute we were down cost tens of thousands. we actually did engineer a lot of systems the way I described just because they were so much easier to reason about and took much less effort to stand up and maintain

They are easier to reason about up to a point. Which a typical HFT trading setup will probably never cross, but a lot of other companies frequently do.

yes, and if we reach that point we will introduce the complex multi-master thing

but most things never reached that point

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