Spot Fleet request types - Amazon Elastic Compute Cloud

Spot Fleet request types

There are two types of Spot Fleet requests:

request

If you configure the request type as request, Spot Fleet places an asynchronous one-time request for your desired capacity. Thereafter, if capacity is diminished because of Spot interruptions, the fleet does not attempt to replenish Spot Instances, nor does it submit requests in alternative Spot capacity pools if capacity is unavailable.

maintain

If you configure the request type as maintain, Spot Fleet places an asynchronous request for your desired capacity, and maintains capacity by automatically replenishing any interrupted Spot Instances.

To specify the type of request in the Amazon EC2 console, do the following when creating a Spot Fleet request:

  • To create a Spot Fleet of type request, clear the Maintain target capacity check box.

  • To create a Spot Fleet of type maintain, select the Maintain target capacity check box.

For more information, see Create a Spot Fleet request using defined parameters (console).

Both types of requests benefit from an allocation strategy. For more information, see Allocation strategy for Spot Instances.