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Add timestamp cache to NodeController

pull/6/head
gmarek 2015-03-31 17:15:39 +02:00
parent 0400339d01
commit 751d1d25ff
2 changed files with 230 additions and 65 deletions
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147
pkg/cloudprovider/controller/nodecontroller.go
View File

@ -68,6 +68,12 @@ var (
ErrCloudInstance = errors.New("cloud provider doesn't support instances.")
)
type NodeStatusData struct {
probeTimestamp util.Time
readyTransitionTimestamp util.Time
status api.NodeStatus
}
type NodeController struct {
cloud cloudprovider.Interface
matchRE string
@ -78,7 +84,10 @@ type NodeController struct {
registerRetryCount int
podEvictionTimeout time.Duration
deletingPodsRateLimiter util.RateLimiter
// per Node map storing last observed Status togheter with a local time when it was observed.
// This timestamp is to be used instead of LastProbeTime stored in Condition. We do this
// to aviod the problem with time skew across the cluster.
nodeStatusMap map[string]NodeStatusData
// Method for easy mocking in unittest.
lookupIP func(host string) ([]net.IP, error)
now func() util.Time
@ -105,6 +114,7 @@ func NewNodeController(
registerRetryCount: registerRetryCount,
podEvictionTimeout: podEvictionTimeout,
deletingPodsRateLimiter: deletingPodsRateLimiter,
nodeStatusMap: make(map[string]NodeStatusData),
lookupIP: net.LookupIP,
now: util.Now,
}
@ -315,7 +325,7 @@ func (nc *NodeController) DoCheck(node *api.Node) []api.NodeCondition {
var conditions []api.NodeCondition
// Check Condition: NodeReady. TODO: More node conditions.
oldReadyCondition := nc.getCondition(node, api.NodeReady)
oldReadyCondition := nc.getCondition(&node.Status, api.NodeReady)
newReadyCondition := nc.checkNodeReady(node)
nc.updateLastTransitionTime(oldReadyCondition, newReadyCondition)
if newReadyCondition.Status != api.ConditionTrue {
@ -330,7 +340,7 @@ func (nc *NodeController) DoCheck(node *api.Node) []api.NodeCondition {
conditions = append(conditions, *newReadyCondition)
// Check Condition: NodeSchedulable
oldSchedulableCondition := nc.getCondition(node, api.NodeSchedulable)
oldSchedulableCondition := nc.getCondition(&node.Status, api.NodeSchedulable)
newSchedulableCondition := nc.checkNodeSchedulable(node)
nc.updateLastTransitionTime(oldSchedulableCondition, newSchedulableCondition)
conditions = append(conditions, *newSchedulableCondition)
@ -436,11 +446,13 @@ func (nc *NodeController) PopulateAddresses(nodes *api.NodeList) (*api.NodeList,
return nodes, nil
}
func (nc NodeController) tryUpdateNodeStatus(node *api.Node) (error, time.Duration, api.NodeCondition) {
// For a given node checks its conditions and tries to update it. Returns grace period to which given node
// is entitled, state of current and last observed Ready Condition, and an error if it ocured.
func (nc *NodeController) tryUpdateNodeStatus(node *api.Node) (time.Duration, api.NodeCondition, *api.NodeCondition, error) {
var err error
var gracePeriod time.Duration
var lastReadyCondition api.NodeCondition
readyCondition := nc.getCondition(node, api.NodeReady)
readyCondition := nc.getCondition(&node.Status, api.NodeReady)
if readyCondition == nil {
// If ready condition is nil, then kubelet (or nodecontroller) never posted node status.
// A fake ready condition is created, where LastProbeTime and LastTransitionTime is set
@ -452,14 +464,80 @@ func (nc NodeController) tryUpdateNodeStatus(node *api.Node) (error, time.Durati
LastTransitionTime: node.CreationTimestamp,
}
gracePeriod = nodeStartupGracePeriod
nc.nodeStatusMap[node.Name] = NodeStatusData{
status: node.Status,
probeTimestamp: node.CreationTimestamp,
readyTransitionTimestamp: node.CreationTimestamp,
}
} else {
// If ready condition is not nil, make a copy of it, since we may modify it in place later.
lastReadyCondition = *readyCondition
gracePeriod = nodeMonitorGracePeriod
}
// Check last time when NodeReady was updated.
if nc.now().After(lastReadyCondition.LastProbeTime.Add(gracePeriod)) {
savedNodeStatus, found := nc.nodeStatusMap[node.Name]
// There are following cases to check:
// - both saved and new status have no Ready Condition set - we leave everything as it is,
// - saved status have no Ready Condition, but current one does - NodeController was restarted with Node data already present in etcd,
// - saved status have some Ready Condition, but current one does not - it's an error, but we fill it up because that's probably a good thing to do,
// - both saved and current statuses have Ready Conditions and they have the same LastProbeTime - nothing happened on that Node, it may be
// unresponsive, so we leave it as it is,
// - both saved and current statuses have Ready Conditions, they have different LastProbeTimes, but the same Ready Condition State -
// everything's in order, no transition occurred, we update only probeTimestamp,
// - both saved and current statuses have Ready Conditions, different LastProbeTimes and different Ready Condition State -
// Ready Condition changed it state since we last seen it, so we update both probeTimestamp and readyTransitionTimestamp.
// TODO: things to consider:
// - if 'LastProbeTime' have gone back in time its probably and error, currently we ignore it,
// - currently only correct Ready State transition outside of Node Controller is marking it ready by Kubelet, we don't check
// if that's the case, but it does not seem necessary.
savedCondition := nc.getCondition(&savedNodeStatus.status, api.NodeReady)
observedCondition := nc.getCondition(&node.Status, api.NodeReady)
if !found {
glog.Warningf("Missing timestamp for Node %s. Assuming now as a timestamp.", node.Name)
savedNodeStatus = NodeStatusData{
status: node.Status,
probeTimestamp: nc.now(),
readyTransitionTimestamp: nc.now(),
}
nc.nodeStatusMap[node.Name] = savedNodeStatus
} else if savedCondition == nil && observedCondition != nil {
glog.V(1).Infof("Creating timestamp entry for newly observed Node %s", node.Name)
savedNodeStatus = NodeStatusData{
status: node.Status,
probeTimestamp: nc.now(),
readyTransitionTimestamp: nc.now(),
}
nc.nodeStatusMap[node.Name] = savedNodeStatus
} else if savedCondition != nil && observedCondition == nil {
glog.Errorf("ReadyCondition was removed from Status of Node %s", node.Name)
// TODO: figure out what to do in this case. For now we do the same thing as above.
savedNodeStatus = NodeStatusData{
status: node.Status,
probeTimestamp: nc.now(),
readyTransitionTimestamp: nc.now(),
}
nc.nodeStatusMap[node.Name] = savedNodeStatus
} else if savedCondition != nil && observedCondition != nil && savedCondition.LastProbeTime != observedCondition.LastProbeTime {
var transitionTime util.Time
// If ReadyCondition changed since the last time we checked, we update the transition timestamp to "now",
// otherwise we leave it as it is.
if savedCondition.LastTransitionTime != observedCondition.LastTransitionTime {
glog.V(3).Infof("ReadyCondition for Node %s transitioned from %v to %v", node.Name, savedCondition.Status, observedCondition)
transitionTime = nc.now()
} else {
transitionTime = savedNodeStatus.readyTransitionTimestamp
}
glog.V(3).Infof("Nodes ReadyCondition updated. Updating timestamp: %+v\n vs %+v.", savedNodeStatus.status, node.Status)
savedNodeStatus = NodeStatusData{
status: node.Status,
probeTimestamp: nc.now(),
readyTransitionTimestamp: transitionTime,
}
nc.nodeStatusMap[node.Name] = savedNodeStatus
}
if nc.now().After(savedNodeStatus.probeTimestamp.Add(gracePeriod)) {
// NodeReady condition was last set longer ago than gracePeriod, so update it to Unknown
// (regardless of its current value) in the master, without contacting kubelet.
if readyCondition == nil {
@ -467,13 +545,13 @@ func (nc NodeController) tryUpdateNodeStatus(node *api.Node) (error, time.Durati
node.Status.Conditions = append(node.Status.Conditions, api.NodeCondition{
Type: api.NodeReady,
Status: api.ConditionUnknown,
Reason: fmt.Sprintf("Kubelet never posted node status"),
Reason: fmt.Sprintf("Kubelet never posted node status."),
LastProbeTime: node.CreationTimestamp,
LastTransitionTime: nc.now(),
})
} else {
glog.V(2).Infof("node %v hasn't been updated for %+v. Last ready condition is: %+v",
node.Name, nc.now().Time.Sub(lastReadyCondition.LastProbeTime.Time), lastReadyCondition)
node.Name, nc.now().Time.Sub(savedNodeStatus.probeTimestamp.Time), lastReadyCondition)
if lastReadyCondition.Status != api.ConditionUnknown {
readyCondition.Status = api.ConditionUnknown
readyCondition.Reason = fmt.Sprintf("Kubelet stopped posting node status.")
@ -482,15 +560,22 @@ func (nc NodeController) tryUpdateNodeStatus(node *api.Node) (error, time.Durati
readyCondition.LastTransitionTime = nc.now()
}
}
_, err = nc.kubeClient.Nodes().Update(node)
if err != nil {
glog.Errorf("Error updating node %s: %v", node.Name, err)
} else {
return nil, gracePeriod, lastReadyCondition
if !api.Semantic.DeepEqual(nc.getCondition(&node.Status, api.NodeReady), lastReadyCondition) {
if _, err = nc.kubeClient.Nodes().Update(node); err != nil {
glog.Errorf("Error updating node %s: %v", node.Name, err)
return gracePeriod, lastReadyCondition, readyCondition, err
} else {
nc.nodeStatusMap[node.Name] = NodeStatusData{
status: node.Status,
probeTimestamp: nc.nodeStatusMap[node.Name].probeTimestamp,
readyTransitionTimestamp: nc.now(),
}
return gracePeriod, lastReadyCondition, readyCondition, nil
}
}
}
return err, gracePeriod, lastReadyCondition
return gracePeriod, lastReadyCondition, readyCondition, err
}
// MonitorNodeStatus verifies node status are constantly updated by kubelet, and if not,
@ -504,17 +589,17 @@ func (nc *NodeController) MonitorNodeStatus() error {
for i := range nodes.Items {
var gracePeriod time.Duration
var lastReadyCondition api.NodeCondition
var readyCondition *api.NodeCondition
node := &nodes.Items[i]
for rep := 0; rep < nodeStatusUpdateRetry; rep++ {
err, gracePeriod, lastReadyCondition = nc.tryUpdateNodeStatus(node)
gracePeriod, lastReadyCondition, readyCondition, err = nc.tryUpdateNodeStatus(node)
if err == nil {
break
}
name := node.Name
node, err = nc.kubeClient.Nodes().Get(name)
if err != nil {
name := node.Name
node, err = nc.kubeClient.Nodes().Get(name)
if err != nil {
glog.Errorf("Failed while getting a Node to retry updating NodeStatus. Probably Node %s was deleted.", name)
break
}
} else {
glog.Errorf("Failed while getting a Node to retry updating NodeStatus. Probably Node %s was deleted.", name)
break
}
}
@ -524,11 +609,10 @@ func (nc *NodeController) MonitorNodeStatus() error {
continue
}
readyCondition := nc.getCondition(node, api.NodeReady)
if readyCondition != nil {
// Check eviction timeout.
if lastReadyCondition.Status == api.ConditionFalse &&
nc.now().After(lastReadyCondition.LastTransitionTime.Add(nc.podEvictionTimeout)) {
nc.now().After(nc.nodeStatusMap[node.Name].readyTransitionTimestamp.Add(nc.podEvictionTimeout)) {
// Node stays in not ready for at least 'podEvictionTimeout' - evict all pods on the unhealthy node.
// Makes sure we are not removing pods from to many nodes in the same time.
if nc.deletingPodsRateLimiter.CanAccept() {
@ -536,7 +620,7 @@ func (nc *NodeController) MonitorNodeStatus() error {
}
}
if lastReadyCondition.Status == api.ConditionUnknown &&
nc.now().After(lastReadyCondition.LastProbeTime.Add(nc.podEvictionTimeout-gracePeriod)) {
nc.now().After(nc.nodeStatusMap[node.Name].probeTimestamp.Add(nc.podEvictionTimeout-gracePeriod)) {
// Same as above. Note however, since condition unknown is posted by node controller, which means we
// need to substract monitoring grace period in order to get the real 'podEvictionTimeout'.
if nc.deletingPodsRateLimiter.CanAccept() {
@ -641,10 +725,13 @@ func (nc *NodeController) canonicalizeName(nodes *api.NodeList) *api.NodeList {
// getCondition returns a condition object for the specific condition
// type, nil if the condition is not set.
func (nc *NodeController) getCondition(node *api.Node, conditionType api.NodeConditionType) *api.NodeCondition {
for i := range node.Status.Conditions {
if node.Status.Conditions[i].Type == conditionType {
return &node.Status.Conditions[i]
func (nc *NodeController) getCondition(status *api.NodeStatus, conditionType api.NodeConditionType) *api.NodeCondition {
if status == nil {
return nil
}
for i := range status.Conditions {
if status.Conditions[i].Type == conditionType {
return &status.Conditions[i]
}
}
return nil

148
pkg/cloudprovider/controller/nodecontroller_test.go
View File

@ -1093,10 +1093,13 @@ func TestSyncProbedNodeStatusEvictPods(t *testing.T) {
func TestMonitorNodeStatusEvictPods(t *testing.T) {
fakeNow := util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC)
evictionTimeout := 30 * time.Minute
table := []struct {
fakeNodeHandler *FakeNodeHandler
timeToPass time.Duration
newNodeStatus api.NodeStatus
expectedEvictPods bool
evictionTimeout time.Duration
}{
// Node created recently, with no status (happens only at cluster startup).
{
@ -1113,7 +1116,8 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
PodsList: api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}},
},
},
evictionTimeout: 30 * time.Minute,
timeToPass: 0,
newNodeStatus: api.NodeStatus{},
expectedEvictPods: false,
},
// Node created long time ago, and kubelet posted NotReady for a short period of time.
@ -1128,11 +1132,10 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionFalse,
// Node status has just been updated, and transited to NotReady for 10min.
LastProbeTime: util.Date(2015, 1, 1, 11, 59, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 11, 50, 0, 0, time.UTC),
Type: api.NodeReady,
Status: api.ConditionFalse,
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
@ -1142,7 +1145,18 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
PodsList: api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}},
},
},
evictionTimeout: 30 * time.Minute,
timeToPass: 10 * time.Minute,
newNodeStatus: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionFalse,
// Node status has just been updated, and is NotReady for 10min.
LastProbeTime: util.Date(2015, 1, 1, 12, 9, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
expectedEvictPods: false,
},
// Node created long time ago, and kubelet posted NotReady for a long period of time.
@ -1157,11 +1171,10 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionFalse,
// Node status has just been updated, and transited to NotReady for 1hr.
LastProbeTime: util.Date(2015, 1, 1, 11, 59, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 11, 0, 0, 0, time.UTC),
Type: api.NodeReady,
Status: api.ConditionFalse,
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
@ -1171,7 +1184,18 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
PodsList: api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}},
},
},
evictionTimeout: 30 * time.Minute,
timeToPass: time.Hour,
newNodeStatus: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionFalse,
// Node status has just been updated, and is NotReady for 1hr.
LastProbeTime: util.Date(2015, 1, 1, 12, 59, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
expectedEvictPods: true,
},
// Node created long time ago, node controller posted Unknown for a short period of time.
@ -1186,11 +1210,10 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionUnknown,
// Node status was updated by nodecontroller 10min ago
LastProbeTime: util.Date(2015, 1, 1, 11, 50, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 11, 50, 0, 0, time.UTC),
Type: api.NodeReady,
Status: api.ConditionUnknown,
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
@ -1200,7 +1223,18 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
PodsList: api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}},
},
},
evictionTimeout: 30 * time.Minute,
timeToPass: 10 * time.Minute,
newNodeStatus: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionUnknown,
// Node status was updated by nodecontroller 10min ago
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
expectedEvictPods: false,
},
// Node created long time ago, node controller posted Unknown for a long period of time.
@ -1215,11 +1249,10 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionUnknown,
// Node status was updated by nodecontroller 1hr ago
LastProbeTime: util.Date(2015, 1, 1, 11, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 11, 0, 0, 0, time.UTC),
Type: api.NodeReady,
Status: api.ConditionUnknown,
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
@ -1229,17 +1262,35 @@ func TestMonitorNodeStatusEvictPods(t *testing.T) {
PodsList: api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}},
},
},
evictionTimeout: 30 * time.Minute,
timeToPass: 60 * time.Minute,
newNodeStatus: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionUnknown,
// Node status was updated by nodecontroller 1hr ago
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
},
expectedEvictPods: true,
},
}
for _, item := range table {
nodeController := NewNodeController(nil, "", []string{"node0"}, nil, item.fakeNodeHandler, nil, 10, item.evictionTimeout, util.NewFakeRateLimiter())
nodeController := NewNodeController(nil, "", []string{"node0"}, nil, item.fakeNodeHandler, nil, 10, evictionTimeout, util.NewFakeRateLimiter())
nodeController.now = func() util.Time { return fakeNow }
if err := nodeController.MonitorNodeStatus(); err != nil {
t.Errorf("unexpected error: %v", err)
}
if item.timeToPass > 0 {
nodeController.now = func() util.Time { return util.Time{Time: fakeNow.Add(item.timeToPass)} }
item.fakeNodeHandler.Existing[0].Status = item.newNodeStatus
}
if err := nodeController.MonitorNodeStatus(); err != nil {
t.Errorf("unexpected error: %v", err)
}
podEvicted := false
for _, action := range item.fakeNodeHandler.Actions {
if action.Action == "delete-pod" {
@ -1256,6 +1307,9 @@ func TestMonitorNodeStatusUpdateStatus(t *testing.T) {
fakeNow := util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC)
table := []struct {
fakeNodeHandler *FakeNodeHandler
timeToPass time.Duration
newNodeStatus api.NodeStatus
expectedEvictPods bool
expectedRequestCount int
expectedNodes []*api.Node
}{
@ -1287,7 +1341,7 @@ func TestMonitorNodeStatusUpdateStatus(t *testing.T) {
{
Type: api.NodeReady,
Status: api.ConditionUnknown,
Reason: fmt.Sprintf("Kubelet never posted node status"),
Reason: fmt.Sprintf("Kubelet never posted node status."),
LastProbeTime: util.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
LastTransitionTime: fakeNow,
},
@ -1331,8 +1385,8 @@ func TestMonitorNodeStatusUpdateStatus(t *testing.T) {
Type: api.NodeReady,
Status: api.ConditionTrue,
// Node status hasn't been updated for 1hr.
LastProbeTime: util.Date(2015, 1, 1, 11, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 11, 0, 0, 0, time.UTC),
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
Capacity: api.ResourceList{
@ -1349,7 +1403,23 @@ func TestMonitorNodeStatusUpdateStatus(t *testing.T) {
PodsList: api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}},
},
},
expectedRequestCount: 2, // List+Update
expectedRequestCount: 3, // (List+)List+Update
timeToPass: time.Hour,
newNodeStatus: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionTrue,
// Node status hasn't been updated for 1hr.
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
},
},
Capacity: api.ResourceList{
api.ResourceName(api.ResourceCPU): resource.MustParse("10"),
api.ResourceName(api.ResourceMemory): resource.MustParse("10G"),
},
},
expectedNodes: []*api.Node{
{
ObjectMeta: api.ObjectMeta{
@ -1362,8 +1432,8 @@ func TestMonitorNodeStatusUpdateStatus(t *testing.T) {
Type: api.NodeReady,
Status: api.ConditionUnknown,
Reason: fmt.Sprintf("Kubelet stopped posting node status."),
LastProbeTime: util.Date(2015, 1, 1, 11, 0, 0, 0, time.UTC),
LastTransitionTime: fakeNow,
LastProbeTime: util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
LastTransitionTime: util.Time{util.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC).Add(time.Hour)},
},
},
Capacity: api.ResourceList{
@ -1422,11 +1492,19 @@ func TestMonitorNodeStatusUpdateStatus(t *testing.T) {
if err := nodeController.MonitorNodeStatus(); err != nil {
t.Errorf("unexpected error: %v", err)
}
if item.timeToPass > 0 {
nodeController.now = func() util.Time { return util.Time{Time: fakeNow.Add(item.timeToPass)} }
item.fakeNodeHandler.Existing[0].Status = item.newNodeStatus
if err := nodeController.MonitorNodeStatus(); err != nil {
t.Errorf("unexpected error: %v", err)
}
}
if item.expectedRequestCount != item.fakeNodeHandler.RequestCount {
t.Errorf("expected %v call, but got %v.", item.expectedRequestCount, item.fakeNodeHandler.RequestCount)
}
if !reflect.DeepEqual(item.expectedNodes, item.fakeNodeHandler.UpdatedNodes) {
t.Errorf("expected nodes %+v, got %+v", item.expectedNodes[0], item.fakeNodeHandler.UpdatedNodes[0])
if !api.Semantic.DeepEqual(item.expectedNodes, item.fakeNodeHandler.UpdatedNodes) {
t.Errorf("expected nodes %+v, got %+v", item.expectedNodes[0],
item.fakeNodeHandler.UpdatedNodes[0])
}
}
}