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The IBM team may need your help to refine the ideas so they may ask for more information or feedback. The product management team will then decide if they can begin working on your idea. If they can start during the next development cycle, they will put the idea on the priority list. Each team at IBM works on a different schedule, where some ideas can be implemented right away, others may be placed on a different schedule.
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There is a cost concern for spot instance partial fulfillment . Say we request spot fleet with 500 hosts. It is only fulfilled 200 hosts, then we cancel the request. We still got charged for those 200 hosts even it is just a few minutes. Amazon team suggests 2 options:
In your case I recommended to use EC2 Fleet with type 'instant', or with 'MinTargetCapacity' in order to avoid fulfilling a partial request that does not have sufficient capacity: https://docs.aws.amazon.com/cli/latest/reference/ec2/create-fleet.html
Another option would be to make an On-Demand capacity reservation before the Spot Fleet request. If the On-Demand capacity reservation is fulfilled, you can immediately terminate the capacity reservation and then make the Spot Fleet request. While not guaranteed, if the On-Demand capacity request is fulfilled, there is likely enough spare capacity for the Spot Fleet request to succeed: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-capacity-reservations.html
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