APIListChunking featuregate.Feature = "APIListChunking"

	// owner: @MikeSpreitzer @yue9944882
	// alpha: v1.18
	// beta: v1.20
	// stable: 1.29
	//
	// Enables managing request concurrency with prioritization and fairness at each server.
	// The FeatureGate was introduced in release 1.15 but the feature
	// was not really implemented before 1.18.
	APIPriorityAndFairness featuregate.Feature = "APIPriorityAndFairness"

	// owner: @ilackams

		"--contention-profiling=true",
		"--egress-selector-config-file=/var/run/kubernetes/egress-selector/connectivity.yaml",
		"--enable-aggregator-routing=true",
		"--enable-priority-and-fairness=false",
		"--enable-logs-handler=false",
		"--etcd-keyfile=/var/run/kubernetes/etcd.key",
		"--etcd-certfile=/var/run/kubernetes/etcdce.crt",
		"--etcd-cafile=/var/run/kubernetes/etcdca.crt",

type Locker interface {
	Lock()
	Unlock()
}

const (
	mutexLocked = 1 << iota // mutex is locked
	mutexWoken
	mutexStarving
	mutexWaiterShift = iota

	// Mutex fairness.
	//
	// Mutex can be in 2 modes of operations: normal and starvation.
	// In normal mode waiters are queued in FIFO order, but a woken up waiter
	// does not own the mutex and competes with new arriving goroutines over

		"--contention-profiling=true",
		"--egress-selector-config-file=/var/run/kubernetes/egress-selector/connectivity.yaml",
		"--enable-aggregator-routing=true",
		"--enable-priority-and-fairness=false",
		"--enable-logs-handler=false",
		"--endpoint-reconciler-type=" + string(reconcilers.LeaseEndpointReconcilerType),
		"--etcd-keyfile=/var/run/kubernetes/etcd.key",
		"--etcd-certfile=/var/run/kubernetes/etcdce.crt",

	}}
	h.Http2ProtocolOptions = &core.Http2ProtocolOptions{
		AllowConnect: true,
		// TODO(https://github.com/istio/istio/issues/43443)
		// All streams are bound to the same worker. Therefore, we need to limit for better fairness.
		MaxConcurrentStreams: &wrappers.UInt32Value{Value: 100},
		// well behaved clients should close connections.
		// not all clients are well-behaved. This will prune

- In the API Priority and Fairness feature, priority levels that are exempt from limitation can now be given a nominal and a lendable concurrency and their dispatching borrows from the concurrency limits of the other priority levels.  For details see https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/1040-priority-and-fairness#dispatching . ([#118782](https://github.com/kubernetes/kubernetes/pull/118782), [@Mik...

- Revert kubelet prober metrics `pod` tag to include actual pod name ([#118549](https://github.com/kubernetes/kubernetes/pull/118549), [@a7i](https://github.com/a7i)) [SIG Node]
- Update kube-apiserver's priority & fairness work estimator such that 'max seats' is MIN(0.15 x nominalCL, nominalCL / handSize)
  

		//
		// Introduce some small jittering to ensure that over time the requests won't start
		// accumulating at approximately the same time from the set of nodes due to priority and
		// fairness effect.
		go wait.JitterUntil(kl.syncNodeStatus, kl.nodeStatusUpdateFrequency, 0.04, true, wait.NeverStop)
		go kl.fastStatusUpdateOnce()

		// start syncing lease

- Priority and Fairness feature is now `stable`, the feature gate will be removed in `v1.31`. ([#121638](https://github.com/kubernetes/kubernetes/pull/121638), [@tkashem](https://github.com/tkashem))

// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License