cache

const (
	// DefaultTTL restricts QPS to AWS APIs to this interval for verifying setup
	// resources. This value represents the maximum eventual consistency between
	// AWS actual state and the controller's ability to provision those
	// resources. Cache hits enable faster provisioning and reduced API load on
	// AWS APIs, which can have a serious impact on performance and scalability.
	// DO NOT CHANGE THIS VALUE WITHOUT DUE CONSIDERATION
	DefaultTTL = time.Minute
	// UnavailableOfferingsTTL is the time before offerings that were marked as unavailable
	// are removed from the cache and are available for launch again
	UnavailableOfferingsTTL = 3 * time.Minute
	// InstanceTypesAndZonesTTL is the time before we refresh instance types and zones at EC2
	InstanceTypesAndZonesTTL = 5 * time.Minute
)

const (
	// DefaultCleanupInterval triggers cache cleanup (lazy eviction) at this interval.
	DefaultCleanupInterval = 10 * time.Minute
)