191–194 of 194 posts
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Your user accounts aren't global? So does that mean if I travel to a new city I have to create a whole new account?
I've traveled to a dozen cities with Uber and didn't have to change my account, even in China. So the answer is no.
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Why would having federated logins be difficult to implement?
It's just not important enough to do. Startup resources, business priorities, customer behaviour...
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It sounds like you have no idea how credit card transactions were or are processed. They are almost exclusively file and batched once a day, even today. Back in the 1970s it was even worse because there was no real time authorization.
This is helpful information if accurate, but please edit incivility like "It sounds like you have no idea" out of your comments here. The site guidelines ask you to omit this sort of thing, so please post civil and substantive comments only: https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newswelcome.html
The reason settlements were batched was to save on wire fees.
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...so you run the servers you need for peak load 24/7? Ew. So much money just thrown away because "it's too complicated". We just scale based off of Network Out and only really spent a week finding the right threshold.
How long does your stack take to add a server. 3 minutes? I have created a lot of services that couldn't have crappy perf for 3 minutes every time the load scales. Especially since in many apps the most expensive part is storage and dbs which cannot auto scale. So say you spend 1k a month in your dbs and $100 for peak web load. You could spend a week fixing auto scaling bugs and try to save $25 by scaling web nodes d…
Admittedly, our web traffic is very US Business Hours centric and peaks predictably between 3 and 4 in the afternoon.
Also, we're operating more at a scale of $40,000/month for peak traffic capacity 24/7 and $25,000/month once I got autoscaling worked out. So...yeah. I guess the scale for savings matters. :-)