We use Kubernetes and spot instances to reduce EC2 billing up to 80%

Re:We use Kubernetes and spot instances to reduce EC2 billin... by tuananh on Monday February 24, 2020 @11:54PM (#22411006)

You're right. spot instances are a lot more stable than preemptible. we've seen spot instances that last a year for us.

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Re:We use Kubernetes and spot instances to reduce EC2 billin... by halbritt on Tuesday February 25, 2020 @12:02AM (#22411035)

This is the second response of this sort that I'm replying to.

"A lot more stable" isn't really a desirable characteristic of ephemeral compute capacity. In my experience, the less frequently the instances went away, the more complacent the operators became.

Preemptible instance are stable in the sense that you know they're going away within 24 hours and must be prepared for that.

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Re:We use Kubernetes and spot instances to reduce EC2 billin... by tuananh on Tuesday February 25, 2020 @12:05AM (#22411044)

true that.

spot used to be that way and the price was very sensitive. but AWS tweaked it so that it's more stable.

to the point, after a year or 2 of running spot instances, we don't feel the difference of spot and ondemand that much. we got complacent.

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