Spot Request Limits - Leveraging Amazon EC2 Spot Instances at Scale

Spot Request Limits

By default, there is an account limit of 20 Spot Instances per AWS Region. If you terminate your Spot Instance but do not cancel the request, the request counts against this limit until Amazon EC2 detects the termination and closes the request.

Spot Instance limits are dynamic. When your account is new, your limit might be lower than 20 to start, but then increase over time. In addition, your account might have limits on specific Spot Instance types. If you submit a Spot Instance request and you receive the error Max Spot Instance count exceeded, you can go to the AWS Support Center and request a limit increase. To learn more about default limits and how to request a limit increase, see AWS Service Limits.