Re:We use Kubernetes and spot instances to reduce EC2 billin...
by cm2187 on Tuesday February 25, 2020 @03:46AM
(#22411727)
Is there a similar concept to airline upgrading? Better than to deny a paying customer to board the plane. Surely there must be spare capacity, somewhere in the datacentre, with slightly better specs.
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Re:We use Kubernetes and spot instances to reduce EC2 billin...
by londons_explore on Tuesday February 25, 2020 @03:55AM
(#22411756)
Yes - they totally do that. If there is only space for a large instance, but you want a small one, they fit your small one in the free capacity, and there is now space for someone else to fit another small one next to it.
For business reasons they might decide not to do that though - your small instance might mean they have to say no to a big allocation later.
Instead they just delay your instance starting and hope other instances moving around opens up a more suitable location for it.
Theres an entire paper on the topic: https://dl.acm.org/doi/10.1145/2797211