Reuse TCP connections in Reflector between resync periods.

contrib/mesos/pkg/executor/executor_test.go

@@ -543,7 +543,7 @@ func NewMockPodsListWatch(initialPodList api.PodList) *MockPodsListWatch {
 		list:        initialPodList,
 	}
 	lw.ListWatch = cache.ListWatch{
-		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
+		WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 			return lw.fakeWatcher, nil
 		},
 		ListFunc: func() (runtime.Object, error) {

contrib/mesos/pkg/scheduler/plugin_test.go

@@ -166,7 +166,7 @@ func NewMockPodsListWatch(initialPodList api.PodList) *MockPodsListWatch {
 		list:        initialPodList,
 	}
 	lw.ListWatch = cache.ListWatch{
-		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
+		WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 			return lw.fakeWatcher, nil
 		},
 		ListFunc: func() (runtime.Object, error) {

contrib/mesos/pkg/service/endpoints_controller.go

@@ -60,8 +60,7 @@ func NewEndpointController(client *client.Client) *endpointController {
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.Services(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.Services(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -81,8 +80,7 @@ func NewEndpointController(client *client.Client) *endpointController {
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.Pods(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/client/cache/listwatch.go

@@ -17,6 +17,9 @@ limitations under the License.
 package cache
 
 import (
+	"time"
+
+	"k8s.io/kubernetes/pkg/api"
 	client "k8s.io/kubernetes/pkg/client/unversioned"
 	"k8s.io/kubernetes/pkg/fields"
 	"k8s.io/kubernetes/pkg/runtime"
@@ -27,7 +30,7 @@ import (
 type ListFunc func() (runtime.Object, error)
 
 // WatchFunc knows how to watch resources
-type WatchFunc func(resourceVersion string) (watch.Interface, error)
+type WatchFunc func(options api.ListOptions) (watch.Interface, error)
 
 // ListWatch knows how to list and watch a set of apiserver resources.  It satisfies the ListerWatcher interface.
 // It is a convenience function for users of NewReflector, etc.
@@ -52,23 +55,33 @@ func NewListWatchFromClient(c Getter, resource string, namespace string, fieldSe
 			Do().
 			Get()
 	}
-	watchFunc := func(resourceVersion string) (watch.Interface, error) {
+	watchFunc := func(options api.ListOptions) (watch.Interface, error) {
 		return c.Get().
 			Prefix("watch").
 			Namespace(namespace).
 			Resource(resource).
+			// TODO: Use VersionedParams once this is supported for non v1 API.
+			Param("resourceVersion", options.ResourceVersion).
+			TimeoutSeconds(timeoutFromListOptions(options)).
 			FieldsSelectorParam(fieldSelector).
-			Param("resourceVersion", resourceVersion).Watch()
+			Watch()
 	}
 	return &ListWatch{ListFunc: listFunc, WatchFunc: watchFunc}
 }
 
+func timeoutFromListOptions(options api.ListOptions) time.Duration {
+	if options.TimeoutSeconds != nil {
+		return time.Duration(*options.TimeoutSeconds) * time.Second
+	}
+	return 0
+}
+
 // List a set of apiserver resources
 func (lw *ListWatch) List() (runtime.Object, error) {
 	return lw.ListFunc()
 }
 
 // Watch a set of apiserver resources
-func (lw *ListWatch) Watch(resourceVersion string) (watch.Interface, error) {
-	return lw.WatchFunc(resourceVersion)
+func (lw *ListWatch) Watch(options api.ListOptions) (watch.Interface, error) {
+	return lw.WatchFunc(options)
 }

pkg/client/cache/listwatch_test.go

@@ -165,7 +165,7 @@ func TestListWatchesCanWatch(t *testing.T) {
 		client := client.NewOrDie(&client.Config{Host: server.URL, Version: testapi.Default.Version()})
 		lw := NewListWatchFromClient(client, item.resource, item.namespace, item.fieldSelector)
 		// This test merely tests that the correct request is made.
-		lw.Watch(item.rv)
+		lw.Watch(api.ListOptions{ResourceVersion: item.rv})
 		handler.ValidateRequest(t, item.location, "GET", nil)
 	}
 }

pkg/client/cache/reflector.go

@@ -20,6 +20,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math/rand"
 	"net"
 	"net/url"
 	"reflect"
@@ -30,6 +31,7 @@ import (
 	"time"
 
 	"github.com/golang/glog"
+	"k8s.io/kubernetes/pkg/api"
 	apierrs "k8s.io/kubernetes/pkg/api/errors"
 	"k8s.io/kubernetes/pkg/api/meta"
 	"k8s.io/kubernetes/pkg/runtime"
@@ -43,7 +45,7 @@ type ListerWatcher interface {
 	// ResourceVersion field will be used to start the watch in the right place.
 	List() (runtime.Object, error)
 	// Watch should begin a watch at the specified version.
-	Watch(resourceVersion string) (watch.Interface, error)
+	Watch(options api.ListOptions) (watch.Interface, error)
 }
 
 // Reflector watches a specified resource and causes all changes to be reflected in the given store.
@@ -61,6 +63,8 @@ type Reflector struct {
 	// the beginning of the next one.
 	period       time.Duration
 	resyncPeriod time.Duration
+	// nextResync is approximate time of next resync (0 if not scheduled)
+	nextResync time.Time
 	// lastSyncResourceVersion is the resource version token last
 	// observed when doing a sync with the underlying store
 	// it is thread safe, but not synchronized with the underlying store
@@ -69,6 +73,22 @@ type Reflector struct {
 	lastSyncResourceVersionMutex sync.RWMutex
 }
 
+var (
+	// We try to spread the load on apiserver by setting timeouts for
+	// watch requests - it is random in [minWatchTimeout, 2*minWatchTimeout].
+	// However, it can be modified to avoid periodic resync to break the
+	// TCP connection.
+	minWatchTimeout = 5 * time.Minute
+
+	now func() time.Time = time.Now
+	// If we are within 'forceResyncThreshold' from the next planned resync
+	// and are just before issueing Watch(), resync will be forced now.
+	forceResyncThreshold = 3 * time.Second
+	// We try to set timeouts for Watch() so that we will finish about
+	// than 'timeoutThreshold' from next planned periodic resync.
+	timeoutThreshold = 1 * time.Second
+)
+
 // NewNamespaceKeyedIndexerAndReflector creates an Indexer and a Reflector
 // The indexer is configured to key on namespace
 func NewNamespaceKeyedIndexerAndReflector(lw ListerWatcher, expectedType interface{}, resyncPeriod time.Duration) (indexer Indexer, reflector *Reflector) {
@@ -160,16 +180,47 @@ var (
 // required, and a cleanup function.
 func (r *Reflector) resyncChan() (<-chan time.Time, func() bool) {
 	if r.resyncPeriod == 0 {
+		r.nextResync = time.Time{}
 		return neverExitWatch, func() bool { return false }
 	}
 	// The cleanup function is required: imagine the scenario where watches
 	// always fail so we end up listing frequently. Then, if we don't
 	// manually stop the timer, we could end up with many timers active
 	// concurrently.
+	r.nextResync = now().Add(r.resyncPeriod)
 	t := time.NewTimer(r.resyncPeriod)
 	return t.C, t.Stop
 }
 
+// We want to avoid situations when periodic resyncing is breaking the TCP
+// connection.
+// If response`s body is not read to completion before calling body.Close(),
+// that TCP connection will not be reused in the future - see #15664 issue
+// for more details.
+// Thus, we set timeout for watch requests to be smaller than the remaining
+// time until next periodic resync and force resyncing ourself to avoid
+// breaking TCP connection.
+//
+// TODO: This should be parametrizable based on server load.
+func (r *Reflector) timeoutForWatch() *int64 {
+	randTimeout := time.Duration(float64(minWatchTimeout) * (rand.Float64() + 1.0))
+	timeout := r.nextResync.Sub(now()) - timeoutThreshold
+	if timeout < 0 || randTimeout < timeout {
+		timeout = randTimeout
+	}
+	timeoutSeconds := int64(timeout.Seconds())
+	return &timeoutSeconds
+}
+
+// Returns true if we are close enough to next planned periodic resync
+// and we can force resyncing ourself now.
+func (r *Reflector) canForceResyncNow() bool {
+	if r.nextResync.IsZero() {
+		return false
+	}
+	return now().Add(forceResyncThreshold).After(r.nextResync)
+}
+
 // Returns error if ListAndWatch didn't even tried to initialize watch.
 func (r *Reflector) ListAndWatch(stopCh <-chan struct{}) error {
 	var resourceVersion string
@@ -195,7 +246,13 @@ func (r *Reflector) ListAndWatch(stopCh <-chan struct{}) error {
 	r.setLastSyncResourceVersion(resourceVersion)
 
 	for {
-		w, err := r.listerWatcher.Watch(resourceVersion)
+		options := api.ListOptions{
+			ResourceVersion: resourceVersion,
+			// We want to avoid situations when resyncing is breaking the TCP connection
+			// - see comment for 'timeoutForWatch()' for more details.
+			TimeoutSeconds: r.timeoutForWatch(),
+		}
+		w, err := r.listerWatcher.Watch(options)
 		if err != nil {
 			switch err {
 			case io.EOF:
@@ -225,6 +282,10 @@ func (r *Reflector) ListAndWatch(stopCh <-chan struct{}) error {
 			}
 			return nil
 		}
+		if r.canForceResyncNow() {
+			glog.V(4).Infof("%s: next resync planned for %#v, forcing now", r.name, r.nextResync)
+			return nil
+		}
 	}
 }
 

pkg/client/cache/reflector_test.go

@@ -36,8 +36,8 @@ type testLW struct {
 }
 
 func (t *testLW) List() (runtime.Object, error) { return t.ListFunc() }
-func (t *testLW) Watch(resourceVersion string) (watch.Interface, error) {
-	return t.WatchFunc(resourceVersion)
+func (t *testLW) Watch(options api.ListOptions) (watch.Interface, error) {
+	return t.WatchFunc(options.ResourceVersion)
 }
 
 func TestCloseWatchChannelOnError(t *testing.T) {
@@ -94,7 +94,7 @@ func TestRunUntil(t *testing.T) {
 	}
 }
 
-func TestReflector_resyncChan(t *testing.T) {
+func TestReflectorResyncChan(t *testing.T) {
 	s := NewStore(MetaNamespaceKeyFunc)
 	g := NewReflector(&testLW{}, &api.Pod{}, s, time.Millisecond)
 	a, _ := g.resyncChan()
@@ -107,7 +107,7 @@ func TestReflector_resyncChan(t *testing.T) {
 	}
 }
 
-func BenchmarkReflector_resyncChanMany(b *testing.B) {
+func BenchmarkReflectorResyncChanMany(b *testing.B) {
 	s := NewStore(MetaNamespaceKeyFunc)
 	g := NewReflector(&testLW{}, &api.Pod{}, s, 25*time.Millisecond)
 	// The improvement to this (calling the timer's Stop() method) makes
@@ -119,7 +119,7 @@ func BenchmarkReflector_resyncChanMany(b *testing.B) {
 	}
 }
 
-func TestReflector_watchHandlerError(t *testing.T) {
+func TestReflectorWatchHandlerError(t *testing.T) {
 	s := NewStore(MetaNamespaceKeyFunc)
 	g := NewReflector(&testLW{}, &api.Pod{}, s, 0)
 	fw := watch.NewFake()
@@ -133,7 +133,7 @@ func TestReflector_watchHandlerError(t *testing.T) {
 	}
 }
 
-func TestReflector_watchHandler(t *testing.T) {
+func TestReflectorWatchHandler(t *testing.T) {
 	s := NewStore(MetaNamespaceKeyFunc)
 	g := NewReflector(&testLW{}, &api.Pod{}, s, 0)
 	fw := watch.NewFake()
@@ -189,7 +189,7 @@ func TestReflector_watchHandler(t *testing.T) {
 	}
 }
 
-func TestReflector_watchHandlerTimeout(t *testing.T) {
+func TestReflectorWatchHandlerTimeout(t *testing.T) {
 	s := NewStore(MetaNamespaceKeyFunc)
 	g := NewReflector(&testLW{}, &api.Pod{}, s, 0)
 	fw := watch.NewFake()
@@ -215,7 +215,7 @@ func TestReflectorStopWatch(t *testing.T) {
 	}
 }
 
-func TestReflector_ListAndWatch(t *testing.T) {
+func TestReflectorListAndWatch(t *testing.T) {
 	createdFakes := make(chan *watch.FakeWatcher)
 
 	// The ListFunc says that it's at revision 1. Therefore, we expect our WatchFunc
@@ -273,7 +273,7 @@ func TestReflector_ListAndWatch(t *testing.T) {
 	}
 }
 
-func TestReflector_ListAndWatchWithErrors(t *testing.T) {
+func TestReflectorListAndWatchWithErrors(t *testing.T) {
 	mkPod := func(id string, rv string) *api.Pod {
 		return &api.Pod{ObjectMeta: api.ObjectMeta{Name: id, ResourceVersion: rv}}
 	}
@@ -360,3 +360,43 @@ func TestReflector_ListAndWatchWithErrors(t *testing.T) {
 		r.ListAndWatch(util.NeverStop)
 	}
 }
+
+func TestReflectorResync(t *testing.T) {
+	s := NewStore(MetaNamespaceKeyFunc)
+
+	currentTime := time.Time{}
+	now = func() time.Time { return currentTime }
+	iteration := 0
+
+	lw := &testLW{
+		WatchFunc: func(rv string) (watch.Interface, error) {
+			if iteration == 0 {
+				// Move time, but do not force resync.
+				currentTime = currentTime.Add(30 * time.Second)
+			} else if iteration == 1 {
+				// Move time to force resync.
+				currentTime = currentTime.Add(28 * time.Second)
+			} else if iteration >= 2 {
+				t.Fatalf("should have forced resync earlier")
+			}
+			iteration++
+			fw := watch.NewFake()
+			// Send something to the watcher to avoid "watch too short" errors.
+			go func() {
+				fw.Add(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo", ResourceVersion: strconv.Itoa(iteration)}})
+				fw.Stop()
+			}()
+			return fw, nil
+		},
+		ListFunc: func() (runtime.Object, error) {
+			return &api.PodList{ListMeta: unversioned.ListMeta{ResourceVersion: "0"}}, nil
+		},
+	}
+	resyncPeriod := time.Minute
+	r := NewReflector(lw, &api.Pod{}, s, resyncPeriod)
+
+	r.ListAndWatch(util.NeverStop)
+	if iteration != 2 {
+		t.Errorf("exactly 2 iterations were expected, got: %v", iteration)
+	}
+}

pkg/controller/daemon/controller.go

@@ -99,8 +99,7 @@ func NewDaemonSetsController(kubeClient client.Interface, resyncPeriod controlle
 			ListFunc: func() (runtime.Object, error) {
 				return dsc.kubeClient.Extensions().DaemonSets(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return dsc.kubeClient.Extensions().DaemonSets(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -132,8 +131,7 @@ func NewDaemonSetsController(kubeClient client.Interface, resyncPeriod controlle
 			ListFunc: func() (runtime.Object, error) {
 				return dsc.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return dsc.kubeClient.Pods(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -151,8 +149,7 @@ func NewDaemonSetsController(kubeClient client.Interface, resyncPeriod controlle
 			ListFunc: func() (runtime.Object, error) {
 				return dsc.kubeClient.Nodes().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return dsc.kubeClient.Nodes().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/endpoint/endpoints_controller.go

@@ -64,8 +64,7 @@ func NewEndpointController(client *client.Client, resyncPeriod controller.Resync
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.Services(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.Services(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -86,8 +85,7 @@ func NewEndpointController(client *client.Client, resyncPeriod controller.Resync
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.Pods(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/framework/fake_controller_source.go

@@ -150,10 +150,10 @@ func (f *FakeControllerSource) List() (runtime.Object, error) {
 
 // Watch returns a watch, which will be pre-populated with all changes
 // after resourceVersion.
-func (f *FakeControllerSource) Watch(resourceVersion string) (watch.Interface, error) {
+func (f *FakeControllerSource) Watch(options api.ListOptions) (watch.Interface, error) {
 	f.lock.RLock()
 	defer f.lock.RUnlock()
-	rc, err := strconv.Atoi(resourceVersion)
+	rc, err := strconv.Atoi(options.ResourceVersion)
 	if err != nil {
 		return nil, err
 	}

pkg/controller/framework/fake_controller_source_test.go

@@ -64,7 +64,7 @@ func TestRCNumber(t *testing.T) {
 	source.Modify(pod("foo"))
 	source.Modify(pod("foo"))
 
-	w, err := source.Watch("1")
+	w, err := source.Watch(api.ListOptions{ResourceVersion: "1"})
 	if err != nil {
 		t.Fatalf("Unexpected error: %v", err)
 	}
@@ -78,13 +78,13 @@ func TestRCNumber(t *testing.T) {
 		t.Errorf("wanted %v, got %v", e, a)
 	}
 
-	w2, err := source.Watch("2")
+	w2, err := source.Watch(api.ListOptions{ResourceVersion: "2"})
 	if err != nil {
 		t.Fatalf("Unexpected error: %v", err)
 	}
 	go consume(t, w2, []string{"3"}, wg)
 
-	w3, err := source.Watch("3")
+	w3, err := source.Watch(api.ListOptions{ResourceVersion: "3"})
 	if err != nil {
 		t.Fatalf("Unexpected error: %v", err)
 	}

pkg/controller/gc/gc_controller.go

@@ -68,8 +68,7 @@ func New(kubeClient client.Interface, resyncPeriod controller.ResyncPeriodFunc,
 			ListFunc: func() (runtime.Object, error) {
 				return gcc.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(), terminatedSelector)
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return gcc.kubeClient.Pods(api.NamespaceAll).Watch(labels.Everything(), terminatedSelector, options)
 			},
 		},

pkg/controller/job/controller.go

@@ -88,8 +88,7 @@ func NewJobController(kubeClient client.Interface, resyncPeriod controller.Resyn
 			ListFunc: func() (runtime.Object, error) {
 				return jm.kubeClient.Extensions().Jobs(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return jm.kubeClient.Extensions().Jobs(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -112,8 +111,7 @@ func NewJobController(kubeClient client.Interface, resyncPeriod controller.Resyn
 			ListFunc: func() (runtime.Object, error) {
 				return jm.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return jm.kubeClient.Pods(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/namespace/namespace_controller.go

@@ -50,8 +50,7 @@ func NewNamespaceController(kubeClient client.Interface, versions *unversioned.A
 			ListFunc: func() (runtime.Object, error) {
 				return kubeClient.Namespaces().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return kubeClient.Namespaces().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/node/nodecontroller.go

@@ -166,8 +166,7 @@ func NewNodeController(
 			ListFunc: func() (runtime.Object, error) {
 				return nc.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return nc.kubeClient.Pods(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -183,8 +182,7 @@ func NewNodeController(
 			ListFunc: func() (runtime.Object, error) {
 				return nc.kubeClient.Nodes().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return nc.kubeClient.Nodes().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/persistentvolume/persistentvolume_claim_binder_controller.go

@@ -58,8 +58,7 @@ func NewPersistentVolumeClaimBinder(kubeClient client.Interface, syncPeriod time
 			ListFunc: func() (runtime.Object, error) {
 				return kubeClient.PersistentVolumes().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return kubeClient.PersistentVolumes().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -77,8 +76,7 @@ func NewPersistentVolumeClaimBinder(kubeClient client.Interface, syncPeriod time
 			ListFunc: func() (runtime.Object, error) {
 				return kubeClient.PersistentVolumeClaims(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return kubeClient.PersistentVolumeClaims(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/persistentvolume/persistentvolume_recycler_controller.go

@@ -66,8 +66,7 @@ func NewPersistentVolumeRecycler(kubeClient client.Interface, syncPeriod time.Du
 			ListFunc: func() (runtime.Object, error) {
 				return kubeClient.PersistentVolumes().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return kubeClient.PersistentVolumes().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/replication/replication_controller.go

@@ -110,8 +110,7 @@ func NewReplicationManager(kubeClient client.Interface, resyncPeriod controller.
 			ListFunc: func() (runtime.Object, error) {
 				return rm.kubeClient.ReplicationControllers(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return rm.kubeClient.ReplicationControllers(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -152,8 +151,7 @@ func NewReplicationManager(kubeClient client.Interface, resyncPeriod controller.
 			ListFunc: func() (runtime.Object, error) {
 				return rm.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return rm.kubeClient.Pods(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/serviceaccount/serviceaccounts_controller.go

@@ -79,8 +79,7 @@ func NewServiceAccountsController(cl client.Interface, options ServiceAccountsCo
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.ServiceAccounts(api.NamespaceAll).List(labels.Everything(), accountSelector)
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.ServiceAccounts(api.NamespaceAll).Watch(labels.Everything(), accountSelector, options)
 			},
 		},
@@ -97,8 +96,7 @@ func NewServiceAccountsController(cl client.Interface, options ServiceAccountsCo
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.Namespaces().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.Namespaces().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

pkg/controller/serviceaccount/tokens_controller.go

@@ -65,8 +65,7 @@ func NewTokensController(cl client.Interface, options TokensControllerOptions) *
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.ServiceAccounts(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.ServiceAccounts(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -86,8 +85,7 @@ func NewTokensController(cl client.Interface, options TokensControllerOptions) *
 			ListFunc: func() (runtime.Object, error) {
 				return e.client.Secrets(api.NamespaceAll).List(labels.Everything(), tokenSelector)
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return e.client.Secrets(api.NamespaceAll).Watch(labels.Everything(), tokenSelector, options)
 			},
 		},

pkg/kubelet/config/apiserver_test.go

@@ -35,7 +35,7 @@ func (lw fakePodLW) List() (runtime.Object, error) {
 	return lw.listResp, nil
 }
 
-func (lw fakePodLW) Watch(resourceVersion string) (watch.Interface, error) {
+func (lw fakePodLW) Watch(options api.ListOptions) (watch.Interface, error) {
 	return lw.watchResp, nil
 }
 

pkg/kubelet/kubelet.go

@@ -213,8 +213,7 @@ func NewMainKubelet(
 			ListFunc: func() (runtime.Object, error) {
 				return kubeClient.Services(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return kubeClient.Services(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		}
@@ -231,8 +230,7 @@ func NewMainKubelet(
 			ListFunc: func() (runtime.Object, error) {
 				return kubeClient.Nodes().List(labels.Everything(), fieldSelector)
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return kubeClient.Nodes().Watch(labels.Everything(), fieldSelector, options)
 			},
 		}

pkg/proxy/config/api_test.go

@@ -35,7 +35,7 @@ func (lw fakeLW) List() (runtime.Object, error) {
 	return lw.listResp, nil
 }
 
-func (lw fakeLW) Watch(resourceVersion string) (watch.Interface, error) {
+func (lw fakeLW) Watch(options api.ListOptions) (watch.Interface, error) {
 	return lw.watchResp, nil
 }
 

pkg/storage/cacher.go

@@ -351,8 +351,8 @@ func (lw *cacherListerWatcher) List() (runtime.Object, error) {
 }
 
 // Implements cache.ListerWatcher interface.
-func (lw *cacherListerWatcher) Watch(resourceVersion string) (watch.Interface, error) {
-	version, err := ParseWatchResourceVersion(resourceVersion, lw.resourcePrefix)
+func (lw *cacherListerWatcher) Watch(options api.ListOptions) (watch.Interface, error) {
+	version, err := ParseWatchResourceVersion(options.ResourceVersion, lw.resourcePrefix)
 	if err != nil {
 		return nil, err
 	}

pkg/storage/watch_cache_test.go

@@ -232,12 +232,12 @@ func TestEvents(t *testing.T) {
 
 type testLW struct {
 	ListFunc  func() (runtime.Object, error)
-	WatchFunc func(resourceVersion string) (watch.Interface, error)
+	WatchFunc func(options api.ListOptions) (watch.Interface, error)
 }
 
 func (t *testLW) List() (runtime.Object, error) { return t.ListFunc() }
-func (t *testLW) Watch(resourceVersion string) (watch.Interface, error) {
-	return t.WatchFunc(resourceVersion)
+func (t *testLW) Watch(options api.ListOptions) (watch.Interface, error) {
+	return t.WatchFunc(options)
 }
 
 func TestReflectorForWatchCache(t *testing.T) {
@@ -251,7 +251,7 @@ func TestReflectorForWatchCache(t *testing.T) {
 	}
 
 	lw := &testLW{
-		WatchFunc: func(rv string) (watch.Interface, error) {
+		WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 			fw := watch.NewFake()
 			go fw.Stop()
 			return fw, nil

pkg/volume/util.go

@@ -111,8 +111,7 @@ func (c *realRecyclerClient) WatchPod(name, namespace, resourceVersion string, s
 		ListFunc: func() (runtime.Object, error) {
 			return c.client.Pods(namespace).List(labels.Everything(), fieldSelector)
 		},
-		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-			options := api.ListOptions{ResourceVersion: resourceVersion}
+		WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 			return c.client.Pods(namespace).Watch(labels.Everything(), fieldSelector, options)
 		},
 	}

plugin/pkg/admission/limitranger/admission.go

@@ -102,8 +102,7 @@ func NewLimitRanger(client client.Interface, limitFunc LimitFunc) admission.Inte
 		ListFunc: func() (runtime.Object, error) {
 			return client.LimitRanges(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 		},
-		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-			options := api.ListOptions{ResourceVersion: resourceVersion}
+		WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 			return client.LimitRanges(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 		},
 	}

plugin/pkg/admission/namespace/autoprovision/admission.go

@@ -87,8 +87,7 @@ func NewProvision(c client.Interface) admission.Interface {
 			ListFunc: func() (runtime.Object, error) {
 				return c.Namespaces().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return c.Namespaces().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

plugin/pkg/admission/namespace/exists/admission.go

@@ -94,8 +94,7 @@ func NewExists(c client.Interface) admission.Interface {
 			ListFunc: func() (runtime.Object, error) {
 				return c.Namespaces().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return c.Namespaces().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

plugin/pkg/admission/namespace/lifecycle/admission.go

@@ -111,8 +111,7 @@ func NewLifecycle(c client.Interface) admission.Interface {
 			ListFunc: func() (runtime.Object, error) {
 				return c.Namespaces().List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return c.Namespaces().Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

plugin/pkg/admission/resourcequota/admission.go

@@ -53,8 +53,7 @@ func NewResourceQuota(client client.Interface) admission.Interface {
 		ListFunc: func() (runtime.Object, error) {
 			return client.ResourceQuotas(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 		},
-		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-			options := api.ListOptions{ResourceVersion: resourceVersion}
+		WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 			return client.ResourceQuotas(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 		},
 	}

plugin/pkg/admission/serviceaccount/admission.go

@@ -85,8 +85,7 @@ func NewServiceAccount(cl client.Interface) *serviceAccount {
 			ListFunc: func() (runtime.Object, error) {
 				return cl.ServiceAccounts(api.NamespaceAll).List(labels.Everything(), fields.Everything())
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return cl.ServiceAccounts(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},
@@ -100,8 +99,7 @@ func NewServiceAccount(cl client.Interface) *serviceAccount {
 			ListFunc: func() (runtime.Object, error) {
 				return cl.Secrets(api.NamespaceAll).List(labels.Everything(), tokenSelector)
 			},
-			WatchFunc: func(resourceVersion string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: resourceVersion}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return cl.Secrets(api.NamespaceAll).Watch(labels.Everything(), tokenSelector, options)
 			},
 		},

test/e2e/daemon_restart.go

@@ -224,8 +224,7 @@ var _ = Describe("DaemonRestart", func() {
 				ListFunc: func() (runtime.Object, error) {
 					return framework.Client.Pods(ns).List(labelSelector, fields.Everything())
 				},
-				WatchFunc: func(rv string) (watch.Interface, error) {
-					options := api.ListOptions{ResourceVersion: rv}
+				WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 					return framework.Client.Pods(ns).Watch(labelSelector, fields.Everything(), options)
 				},
 			},

test/e2e/density.go

@@ -202,8 +202,7 @@ var _ = Describe("Density", func() {
 					ListFunc: func() (runtime.Object, error) {
 						return c.Events(ns).List(labels.Everything(), fields.Everything())
 					},
-					WatchFunc: func(rv string) (watch.Interface, error) {
-						options := api.ListOptions{ResourceVersion: rv}
+					WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 						return c.Events(ns).Watch(labels.Everything(), fields.Everything(), options)
 					},
 				},
@@ -286,8 +285,7 @@ var _ = Describe("Density", func() {
 						ListFunc: func() (runtime.Object, error) {
 							return c.Pods(ns).List(labels.SelectorFromSet(labels.Set{"name": additionalPodsPrefix}), fields.Everything())
 						},
-						WatchFunc: func(rv string) (watch.Interface, error) {
-							options := api.ListOptions{ResourceVersion: rv}
+						WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 							return c.Pods(ns).Watch(labels.SelectorFromSet(labels.Set{"name": additionalPodsPrefix}), fields.Everything(), options)
 						},
 					},

test/e2e/latency.go

@@ -152,8 +152,7 @@ func runLatencyTest(nodeCount int, c *client.Client, ns string) {
 			ListFunc: func() (runtime.Object, error) {
 				return c.Pods(ns).List(labels.SelectorFromSet(labels.Set{"name": additionalPodsPrefix}), fields.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return c.Pods(ns).Watch(labels.SelectorFromSet(labels.Set{"name": additionalPodsPrefix}), fields.Everything(), options)
 			},
 		},

test/e2e/service_latency.go

@@ -281,8 +281,7 @@ func startEndpointWatcher(f *Framework, q *endpointQueries) {
 			ListFunc: func() (runtime.Object, error) {
 				return f.Client.Endpoints(f.Namespace.Name).List(labels.Everything())
 			},
-			WatchFunc: func(rv string) (watch.Interface, error) {
-				options := api.ListOptions{ResourceVersion: rv}
+			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 				return f.Client.Endpoints(f.Namespace.Name).Watch(labels.Everything(), fields.Everything(), options)
 			},
 		},

test/e2e/util.go

@@ -144,8 +144,7 @@ func newPodStore(c *client.Client, namespace string, label labels.Selector, fiel
 		ListFunc: func() (runtime.Object, error) {
 			return c.Pods(namespace).List(label, field)
 		},
-		WatchFunc: func(rv string) (watch.Interface, error) {
-			options := api.ListOptions{ResourceVersion: rv}
+		WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
 			return c.Pods(namespace).Watch(label, field, options)
 		},
 	}