controller

const (
	// We'll attempt to recompute the required replicas of all replication controllers
	// the have fulfilled their expectations at least this often. This recomputation
	// happens based on contents in local pod storage.
	FullControllerResyncPeriod = 30 * time.Second

	// If a watch misdelivers info about a pod, it'll take at least this long
	// to rectify the number of replicas. Note that dropped deletes are only
	// rectified after the expectation times out because we don't know the
	// final resting state of the pod.
	PodRelistPeriod = 5 * time.Minute

	// If a watch drops a delete event for a pod, it'll take this long
	// before a dormant rc waiting for those packets is woken up anyway. It is
	// specifically targeted at the case where some problem prevents an update
	// of expectations, without it the RC could stay asleep forever. This should
	// be set based on the expected latency of watch events.
	//
	// TODO: Set this per expectation, based on its size.
	// Currently an rc can service (create *and* observe the watch events for said
	// creation) about 10-20 pods a second, so it takes about 3.5 min to service
	// 3000 pods. Just creation is limited to 30qps, and watching happens with
	// ~10-30s latency/pod at scale.
	ExpectationsTimeout = 6 * time.Minute
)

const (
	CreatedByAnnotation = "kubernetes.io/created-by"
)