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by fragmede 1040 days ago
Did any AWS customers experience unavailability during prime day, eg capacity issues launching instances, due to prime day taking precedence over other customers? If there are, they're under NDA so we'd never know.
5 comments

You’ve talked me into running some load tests around and before these times… around thanksgiving I’ll give it a shot too… I wonder though if it’s just a redirection of traffic… if regular business sites are less busy because people are shopping it would just slightly shift the load from one “side” to the other

Hmmmm….

My expectation would be that Prime Day just causes AWS to get a little further ahead than normal with provisioning new infrastructure.

With AWS still growing they are constantly having to add hardware. Ahead of Prime Day, I presume they just bring forward new resources that their model otherwise says aren't needed for a few months.

Unavailability for other customers indicates either AWS growth has plateaued, they have hit the limit of throughput of how much hardware they can provision, or they just did their sums wrong.

Amazon surely allocates their resources in advance of prime day, so they can preemptively change prices to account for demand or deny requests.

That said, why would capacity issues be behind NDA? Anyone can grab their API and attempt to allocate a VM (or 100k)

You can query the spot pricing api and see what’s going on with that. I have a feeling Amazon purposely tries not to hang their customers out to dry by consuming large amounts of spot instances, or on-demand tanking spot availability.
Just a chilling effects from general paranoia over breaking NDA. What is and isn't actually covered by the NDA isn't something I had the time to look up for my comment for.

You can't spin up 100k instances on a virgin account, but it's an interesting idea!

I’m sure many customers have some form of mNDAs with AWS. I’d have to read ours to be sure, but I don’t think ours would preclude us talking about the problems we experienced on Prime Days, if there were any. (We saw none.)
I am not saying that this is true AT ALL, but it would be kind of ironic if AWS slowed down competing ecommerce stores to try and get an advantage.