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			676 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| /*
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| Copyright 2014 The Kubernetes Authors All rights reserved.
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| 
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| Licensed under the Apache License, Version 2.0 (the "License");
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| you may not use this file except in compliance with the License.
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| You may obtain a copy of the License at
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| 
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|     http://www.apache.org/licenses/LICENSE-2.0
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| 
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| Unless required by applicable law or agreed to in writing, software
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| distributed under the License is distributed on an "AS IS" BASIS,
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| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| See the License for the specific language governing permissions and
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| limitations under the License.
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| */
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| 
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| package node
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| 
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| import (
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| 	"errors"
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| 	"fmt"
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| 	"sync"
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| 	"testing"
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| 	"time"
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| 
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| 	"k8s.io/kubernetes/pkg/api"
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| 	apierrors "k8s.io/kubernetes/pkg/api/errors"
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| 	"k8s.io/kubernetes/pkg/api/resource"
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| 	"k8s.io/kubernetes/pkg/api/unversioned"
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| 	client "k8s.io/kubernetes/pkg/client/unversioned"
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| 	"k8s.io/kubernetes/pkg/client/unversioned/testclient"
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| 	"k8s.io/kubernetes/pkg/fields"
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| 	"k8s.io/kubernetes/pkg/labels"
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| 	"k8s.io/kubernetes/pkg/util"
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| 	"k8s.io/kubernetes/pkg/watch"
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| )
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| 
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| const (
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| 	testNodeMonitorGracePeriod = 40 * time.Second
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| 	testNodeStartupGracePeriod = 60 * time.Second
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| 	testNodeMonitorPeriod      = 5 * time.Second
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| )
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| 
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| // FakeNodeHandler is a fake implementation of NodesInterface and NodeInterface. It
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| // allows test cases to have fine-grained control over mock behaviors. We also need
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| // PodsInterface and PodInterface to test list & delet pods, which is implemented in
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| // the embedded client.Fake field.
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| type FakeNodeHandler struct {
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| 	*testclient.Fake
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| 
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| 	// Input: Hooks determine if request is valid or not
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| 	CreateHook func(*FakeNodeHandler, *api.Node) bool
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| 	Existing   []*api.Node
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| 
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| 	// Output
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| 	CreatedNodes        []*api.Node
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| 	DeletedNodes        []*api.Node
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| 	UpdatedNodes        []*api.Node
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| 	UpdatedNodeStatuses []*api.Node
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| 	RequestCount        int
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| 
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| 	// Synchronization
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| 	createLock sync.Mutex
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| }
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| 
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| func (c *FakeNodeHandler) Nodes() client.NodeInterface {
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| 	return c
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| }
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| 
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| func (m *FakeNodeHandler) Create(node *api.Node) (*api.Node, error) {
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| 	m.createLock.Lock()
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| 	defer func() {
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| 		m.RequestCount++
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| 		m.createLock.Unlock()
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| 	}()
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| 	for _, n := range m.Existing {
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| 		if n.Name == node.Name {
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| 			return nil, apierrors.NewAlreadyExists("Minion", node.Name)
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| 		}
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| 	}
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| 	if m.CreateHook == nil || m.CreateHook(m, node) {
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| 		nodeCopy := *node
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| 		m.CreatedNodes = append(m.CreatedNodes, &nodeCopy)
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| 		return node, nil
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| 	} else {
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| 		return nil, errors.New("Create error.")
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| 	}
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| }
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| 
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| func (m *FakeNodeHandler) Get(name string) (*api.Node, error) {
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| 	return nil, nil
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| }
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| 
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| func (m *FakeNodeHandler) List(label labels.Selector, field fields.Selector) (*api.NodeList, error) {
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| 	defer func() { m.RequestCount++ }()
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| 	var nodes []*api.Node
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| 	for i := 0; i < len(m.UpdatedNodes); i++ {
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| 		if !contains(m.UpdatedNodes[i], m.DeletedNodes) {
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| 			nodes = append(nodes, m.UpdatedNodes[i])
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| 		}
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| 	}
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| 	for i := 0; i < len(m.Existing); i++ {
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| 		if !contains(m.Existing[i], m.DeletedNodes) && !contains(m.Existing[i], nodes) {
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| 			nodes = append(nodes, m.Existing[i])
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| 		}
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| 	}
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| 	for i := 0; i < len(m.CreatedNodes); i++ {
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| 		if !contains(m.Existing[i], m.DeletedNodes) && !contains(m.CreatedNodes[i], nodes) {
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| 			nodes = append(nodes, m.CreatedNodes[i])
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| 		}
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| 	}
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| 	nodeList := &api.NodeList{}
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| 	for _, node := range nodes {
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| 		nodeList.Items = append(nodeList.Items, *node)
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| 	}
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| 	return nodeList, nil
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| }
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| 
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| func (m *FakeNodeHandler) Delete(id string) error {
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| 	m.DeletedNodes = append(m.DeletedNodes, newNode(id))
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| 	m.RequestCount++
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| 	return nil
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| }
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| 
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| func (m *FakeNodeHandler) Update(node *api.Node) (*api.Node, error) {
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| 	nodeCopy := *node
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| 	m.UpdatedNodes = append(m.UpdatedNodes, &nodeCopy)
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| 	m.RequestCount++
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| 	return node, nil
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| }
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| 
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| func (m *FakeNodeHandler) UpdateStatus(node *api.Node) (*api.Node, error) {
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| 	nodeCopy := *node
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| 	m.UpdatedNodeStatuses = append(m.UpdatedNodeStatuses, &nodeCopy)
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| 	m.RequestCount++
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| 	return node, nil
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| }
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| 
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| func (m *FakeNodeHandler) Watch(label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
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| 	return nil, nil
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| }
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| 
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| func TestMonitorNodeStatusEvictPods(t *testing.T) {
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| 	fakeNow := unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC)
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| 	evictionTimeout := 10 * time.Minute
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| 
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| 	table := []struct {
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| 		fakeNodeHandler   *FakeNodeHandler
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| 		timeToPass        time.Duration
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| 		newNodeStatus     api.NodeStatus
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| 		expectedEvictPods bool
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| 		description       string
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| 	}{
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| 		// Node created recently, with no status (happens only at cluster startup).
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| 		{
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| 			fakeNodeHandler: &FakeNodeHandler{
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| 				Existing: []*api.Node{
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| 					{
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| 						ObjectMeta: api.ObjectMeta{
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| 							Name:              "node0",
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| 							CreationTimestamp: fakeNow,
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| 						},
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| 					},
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| 				},
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| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
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| 			},
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| 			timeToPass:        0,
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| 			newNodeStatus:     api.NodeStatus{},
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| 			expectedEvictPods: false,
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| 			description:       "Node created recently, with no status.",
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| 		},
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| 		// Node created long time ago, and kubelet posted NotReady for a short period of time.
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| 		{
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| 			fakeNodeHandler: &FakeNodeHandler{
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| 				Existing: []*api.Node{
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| 					{
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| 						ObjectMeta: api.ObjectMeta{
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| 							Name:              "node0",
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| 							CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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| 						},
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| 						Status: api.NodeStatus{
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| 							Conditions: []api.NodeCondition{
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| 								{
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| 									Type:               api.NodeReady,
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| 									Status:             api.ConditionFalse,
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| 									LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 									LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 								},
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| 							},
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| 						},
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| 					},
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| 				},
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| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
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| 			},
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| 			timeToPass: evictionTimeout,
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| 			newNodeStatus: api.NodeStatus{
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| 				Conditions: []api.NodeCondition{
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| 					{
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| 						Type:   api.NodeReady,
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| 						Status: api.ConditionFalse,
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| 						// Node status has just been updated, and is NotReady for 10min.
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| 						LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 9, 0, 0, time.UTC),
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| 						LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 					},
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| 				},
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| 			},
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| 			expectedEvictPods: false,
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| 			description:       "Node created long time ago, and kubelet posted NotReady for a short period of time.",
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| 		},
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| 		// Node created long time ago, and kubelet posted NotReady for a long period of time.
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| 		{
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| 			fakeNodeHandler: &FakeNodeHandler{
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| 				Existing: []*api.Node{
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| 					{
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| 						ObjectMeta: api.ObjectMeta{
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| 							Name:              "node0",
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| 							CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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| 						},
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| 						Status: api.NodeStatus{
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| 							Conditions: []api.NodeCondition{
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| 								{
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| 									Type:               api.NodeReady,
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| 									Status:             api.ConditionFalse,
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| 									LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 									LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 								},
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| 							},
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| 						},
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| 					},
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| 				},
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| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
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| 			},
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| 			timeToPass: time.Hour,
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| 			newNodeStatus: api.NodeStatus{
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| 				Conditions: []api.NodeCondition{
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| 					{
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| 						Type:   api.NodeReady,
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| 						Status: api.ConditionFalse,
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| 						// Node status has just been updated, and is NotReady for 1hr.
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| 						LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 59, 0, 0, time.UTC),
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| 						LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 					},
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| 				},
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| 			},
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| 			expectedEvictPods: true,
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| 			description:       "Node created long time ago, and kubelet posted NotReady for a long period of time.",
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| 		},
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| 		// Node created long time ago, node controller posted Unknown for a short period of time.
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| 		{
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| 			fakeNodeHandler: &FakeNodeHandler{
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| 				Existing: []*api.Node{
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| 					{
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| 						ObjectMeta: api.ObjectMeta{
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| 							Name:              "node0",
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| 							CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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| 						},
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| 						Status: api.NodeStatus{
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| 							Conditions: []api.NodeCondition{
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| 								{
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| 									Type:               api.NodeReady,
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| 									Status:             api.ConditionUnknown,
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| 									LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 									LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 								},
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| 							},
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| 						},
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| 					},
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| 				},
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| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
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| 			},
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| 			timeToPass: evictionTimeout - testNodeMonitorGracePeriod,
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| 			newNodeStatus: api.NodeStatus{
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| 				Conditions: []api.NodeCondition{
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| 					{
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| 						Type:   api.NodeReady,
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| 						Status: api.ConditionUnknown,
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| 						// Node status was updated by nodecontroller 10min ago
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| 						LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 						LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 					},
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| 				},
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| 			},
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| 			expectedEvictPods: false,
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| 			description:       "Node created long time ago, node controller posted Unknown for a short period of time.",
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| 		},
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| 		// Node created long time ago, node controller posted Unknown for a long period of time.
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| 		{
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| 			fakeNodeHandler: &FakeNodeHandler{
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| 				Existing: []*api.Node{
 | |
| 					{
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| 						ObjectMeta: api.ObjectMeta{
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| 							Name:              "node0",
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| 							CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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| 						},
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| 						Status: api.NodeStatus{
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| 							Conditions: []api.NodeCondition{
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| 								{
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| 									Type:               api.NodeReady,
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| 									Status:             api.ConditionUnknown,
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| 									LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 									LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 								},
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| 							},
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| 						},
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| 					},
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| 				},
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| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
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| 			},
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| 			timeToPass: 60 * time.Minute,
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| 			newNodeStatus: api.NodeStatus{
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| 				Conditions: []api.NodeCondition{
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| 					{
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| 						Type:   api.NodeReady,
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| 						Status: api.ConditionUnknown,
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| 						// Node status was updated by nodecontroller 1hr ago
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| 						LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 						LastTransitionTime: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
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| 					},
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| 				},
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| 			},
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| 			expectedEvictPods: true,
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| 			description:       "Node created long time ago, node controller posted Unknown for a long period of time.",
 | |
| 		},
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| 	}
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| 
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| 	for _, item := range table {
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| 		nodeController := NewNodeController(nil, item.fakeNodeHandler,
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| 			evictionTimeout, util.NewFakeRateLimiter(), util.NewFakeRateLimiter(), testNodeMonitorGracePeriod,
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| 			testNodeStartupGracePeriod, testNodeMonitorPeriod, nil, false)
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| 		nodeController.now = func() unversioned.Time { return fakeNow }
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| 		if err := nodeController.monitorNodeStatus(); err != nil {
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| 			t.Errorf("unexpected error: %v", err)
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| 		}
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| 		if item.timeToPass > 0 {
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| 			nodeController.now = func() unversioned.Time { return unversioned.Time{Time: fakeNow.Add(item.timeToPass)} }
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| 			item.fakeNodeHandler.Existing[0].Status = item.newNodeStatus
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| 		}
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| 		if err := nodeController.monitorNodeStatus(); err != nil {
 | |
| 			t.Errorf("unexpected error: %v", err)
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| 		}
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| 
 | |
| 		nodeController.podEvictor.Try(func(value TimedValue) (bool, time.Duration) {
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| 			remaining, _ := nodeController.deletePods(value.Value)
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| 			if remaining {
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| 				nodeController.terminationEvictor.Add(value.Value)
 | |
| 			}
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| 			return true, 0
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| 		})
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| 		nodeController.podEvictor.Try(func(value TimedValue) (bool, time.Duration) {
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| 			nodeController.terminatePods(value.Value, value.AddedAt)
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| 			return true, 0
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| 		})
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| 		podEvicted := false
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| 		for _, action := range item.fakeNodeHandler.Actions() {
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| 			if action.GetVerb() == "delete" && action.GetResource() == "pods" {
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| 				podEvicted = true
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| 			}
 | |
| 		}
 | |
| 
 | |
| 		if item.expectedEvictPods != podEvicted {
 | |
| 			t.Errorf("expected pod eviction: %+v, got %+v for %+v", item.expectedEvictPods,
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| 				podEvicted, item.description)
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| 		}
 | |
| 	}
 | |
| }
 | |
| 
 | |
| func TestMonitorNodeStatusUpdateStatus(t *testing.T) {
 | |
| 	fakeNow := unversioned.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
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| 	}{
 | |
| 		// Node created long time ago, without status:
 | |
| 		// Expect Unknown status posted from node controller.
 | |
| 		{
 | |
| 			fakeNodeHandler: &FakeNodeHandler{
 | |
| 				Existing: []*api.Node{
 | |
| 					{
 | |
| 						ObjectMeta: api.ObjectMeta{
 | |
| 							Name:              "node0",
 | |
| 							CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 						},
 | |
| 					},
 | |
| 				},
 | |
| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
 | |
| 			},
 | |
| 			expectedRequestCount: 2, // List+Update
 | |
| 			expectedNodes: []*api.Node{
 | |
| 				{
 | |
| 					ObjectMeta: api.ObjectMeta{
 | |
| 						Name:              "node0",
 | |
| 						CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 					},
 | |
| 					Status: api.NodeStatus{
 | |
| 						Conditions: []api.NodeCondition{
 | |
| 							{
 | |
| 								Type:               api.NodeReady,
 | |
| 								Status:             api.ConditionUnknown,
 | |
| 								Reason:             "NodeStatusNeverUpdated",
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| 								Message:            fmt.Sprintf("Kubelet never posted node status."),
 | |
| 								LastHeartbeatTime:  unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 								LastTransitionTime: fakeNow,
 | |
| 							},
 | |
| 						},
 | |
| 					},
 | |
| 				},
 | |
| 			},
 | |
| 		},
 | |
| 		// Node created recently, without status.
 | |
| 		// Expect no action from node controller (within startup grace period).
 | |
| 		{
 | |
| 			fakeNodeHandler: &FakeNodeHandler{
 | |
| 				Existing: []*api.Node{
 | |
| 					{
 | |
| 						ObjectMeta: api.ObjectMeta{
 | |
| 							Name:              "node0",
 | |
| 							CreationTimestamp: fakeNow,
 | |
| 						},
 | |
| 					},
 | |
| 				},
 | |
| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
 | |
| 			},
 | |
| 			expectedRequestCount: 1, // List
 | |
| 			expectedNodes:        nil,
 | |
| 		},
 | |
| 		// Node created long time ago, with status updated by kubelet exceeds grace period.
 | |
| 		// Expect Unknown status posted from node controller.
 | |
| 		{
 | |
| 			fakeNodeHandler: &FakeNodeHandler{
 | |
| 				Existing: []*api.Node{
 | |
| 					{
 | |
| 						ObjectMeta: api.ObjectMeta{
 | |
| 							Name:              "node0",
 | |
| 							CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 						},
 | |
| 						Status: api.NodeStatus{
 | |
| 							Conditions: []api.NodeCondition{
 | |
| 								{
 | |
| 									Type:   api.NodeReady,
 | |
| 									Status: api.ConditionTrue,
 | |
| 									// Node status hasn't been updated for 1hr.
 | |
| 									LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
 | |
| 									LastTransitionTime: unversioned.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"),
 | |
| 							},
 | |
| 						},
 | |
| 						Spec: api.NodeSpec{
 | |
| 							ExternalID: "node0",
 | |
| 						},
 | |
| 					},
 | |
| 				},
 | |
| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
 | |
| 			},
 | |
| 			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.
 | |
| 						LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
 | |
| 						LastTransitionTime: unversioned.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{
 | |
| 						Name:              "node0",
 | |
| 						CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 					},
 | |
| 					Status: api.NodeStatus{
 | |
| 						Conditions: []api.NodeCondition{
 | |
| 							{
 | |
| 								Type:               api.NodeReady,
 | |
| 								Status:             api.ConditionUnknown,
 | |
| 								Reason:             "NodeStatusStopUpdated",
 | |
| 								Message:            fmt.Sprintf("Kubelet stopped posting node status."),
 | |
| 								LastHeartbeatTime:  unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC),
 | |
| 								LastTransitionTime: unversioned.Time{Time: unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC).Add(time.Hour)},
 | |
| 							},
 | |
| 						},
 | |
| 						Capacity: api.ResourceList{
 | |
| 							api.ResourceName(api.ResourceCPU):    resource.MustParse("10"),
 | |
| 							api.ResourceName(api.ResourceMemory): resource.MustParse("10G"),
 | |
| 						},
 | |
| 					},
 | |
| 					Spec: api.NodeSpec{
 | |
| 						ExternalID: "node0",
 | |
| 					},
 | |
| 				},
 | |
| 			},
 | |
| 		},
 | |
| 		// Node created long time ago, with status updated recently.
 | |
| 		// Expect no action from node controller (within monitor grace period).
 | |
| 		{
 | |
| 			fakeNodeHandler: &FakeNodeHandler{
 | |
| 				Existing: []*api.Node{
 | |
| 					{
 | |
| 						ObjectMeta: api.ObjectMeta{
 | |
| 							Name:              "node0",
 | |
| 							CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 						},
 | |
| 						Status: api.NodeStatus{
 | |
| 							Conditions: []api.NodeCondition{
 | |
| 								{
 | |
| 									Type:   api.NodeReady,
 | |
| 									Status: api.ConditionTrue,
 | |
| 									// Node status has just been updated.
 | |
| 									LastHeartbeatTime:  fakeNow,
 | |
| 									LastTransitionTime: fakeNow,
 | |
| 								},
 | |
| 							},
 | |
| 							Capacity: api.ResourceList{
 | |
| 								api.ResourceName(api.ResourceCPU):    resource.MustParse("10"),
 | |
| 								api.ResourceName(api.ResourceMemory): resource.MustParse("10G"),
 | |
| 							},
 | |
| 						},
 | |
| 						Spec: api.NodeSpec{
 | |
| 							ExternalID: "node0",
 | |
| 						},
 | |
| 					},
 | |
| 				},
 | |
| 				Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0")}}),
 | |
| 			},
 | |
| 			expectedRequestCount: 1, // List
 | |
| 			expectedNodes:        nil,
 | |
| 		},
 | |
| 	}
 | |
| 
 | |
| 	for _, item := range table {
 | |
| 		nodeController := NewNodeController(nil, item.fakeNodeHandler, 5*time.Minute, util.NewFakeRateLimiter(),
 | |
| 			util.NewFakeRateLimiter(), testNodeMonitorGracePeriod, testNodeStartupGracePeriod, testNodeMonitorPeriod, nil, false)
 | |
| 		nodeController.now = func() unversioned.Time { return fakeNow }
 | |
| 		if err := nodeController.monitorNodeStatus(); err != nil {
 | |
| 			t.Errorf("unexpected error: %v", err)
 | |
| 		}
 | |
| 		if item.timeToPass > 0 {
 | |
| 			nodeController.now = func() unversioned.Time { return unversioned.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 len(item.fakeNodeHandler.UpdatedNodes) > 0 && !api.Semantic.DeepEqual(item.expectedNodes, item.fakeNodeHandler.UpdatedNodes) {
 | |
| 			t.Errorf("expected nodes %+v, got %+v", item.expectedNodes[0],
 | |
| 				item.fakeNodeHandler.UpdatedNodes[0])
 | |
| 		}
 | |
| 	}
 | |
| }
 | |
| 
 | |
| func TestNodeDeletion(t *testing.T) {
 | |
| 	fakeNow := unversioned.Date(2015, 1, 1, 12, 0, 0, 0, time.UTC)
 | |
| 	fakeNodeHandler := &FakeNodeHandler{
 | |
| 		Existing: []*api.Node{
 | |
| 			{
 | |
| 				ObjectMeta: api.ObjectMeta{
 | |
| 					Name:              "node0",
 | |
| 					CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 				},
 | |
| 				Status: api.NodeStatus{
 | |
| 					Conditions: []api.NodeCondition{
 | |
| 						{
 | |
| 							Type:   api.NodeReady,
 | |
| 							Status: api.ConditionTrue,
 | |
| 							// Node status has just been updated.
 | |
| 							LastHeartbeatTime:  fakeNow,
 | |
| 							LastTransitionTime: fakeNow,
 | |
| 						},
 | |
| 					},
 | |
| 					Capacity: api.ResourceList{
 | |
| 						api.ResourceName(api.ResourceCPU):    resource.MustParse("10"),
 | |
| 						api.ResourceName(api.ResourceMemory): resource.MustParse("10G"),
 | |
| 					},
 | |
| 				},
 | |
| 				Spec: api.NodeSpec{
 | |
| 					ExternalID: "node0",
 | |
| 				},
 | |
| 			},
 | |
| 			{
 | |
| 				ObjectMeta: api.ObjectMeta{
 | |
| 					Name:              "node1",
 | |
| 					CreationTimestamp: unversioned.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
 | |
| 				},
 | |
| 				Status: api.NodeStatus{
 | |
| 					Conditions: []api.NodeCondition{
 | |
| 						{
 | |
| 							Type:   api.NodeReady,
 | |
| 							Status: api.ConditionTrue,
 | |
| 							// Node status has just been updated.
 | |
| 							LastHeartbeatTime:  fakeNow,
 | |
| 							LastTransitionTime: fakeNow,
 | |
| 						},
 | |
| 					},
 | |
| 					Capacity: api.ResourceList{
 | |
| 						api.ResourceName(api.ResourceCPU):    resource.MustParse("10"),
 | |
| 						api.ResourceName(api.ResourceMemory): resource.MustParse("10G"),
 | |
| 					},
 | |
| 				},
 | |
| 				Spec: api.NodeSpec{
 | |
| 					ExternalID: "node0",
 | |
| 				},
 | |
| 			},
 | |
| 		},
 | |
| 		Fake: testclient.NewSimpleFake(&api.PodList{Items: []api.Pod{*newPod("pod0", "node0"), *newPod("pod1", "node1")}}),
 | |
| 	}
 | |
| 
 | |
| 	nodeController := NewNodeController(nil, fakeNodeHandler, 5*time.Minute, util.NewFakeRateLimiter(), util.NewFakeRateLimiter(),
 | |
| 		testNodeMonitorGracePeriod, testNodeStartupGracePeriod, testNodeMonitorPeriod, nil, false)
 | |
| 	nodeController.now = func() unversioned.Time { return fakeNow }
 | |
| 	if err := nodeController.monitorNodeStatus(); err != nil {
 | |
| 		t.Errorf("unexpected error: %v", err)
 | |
| 	}
 | |
| 	fakeNodeHandler.Delete("node1")
 | |
| 	if err := nodeController.monitorNodeStatus(); err != nil {
 | |
| 		t.Errorf("unexpected error: %v", err)
 | |
| 	}
 | |
| 	nodeController.podEvictor.Try(func(value TimedValue) (bool, time.Duration) {
 | |
| 		nodeController.deletePods(value.Value)
 | |
| 		return true, 0
 | |
| 	})
 | |
| 	podEvicted := false
 | |
| 	for _, action := range fakeNodeHandler.Actions() {
 | |
| 		if action.GetVerb() == "delete" && action.GetResource() == "pods" {
 | |
| 			podEvicted = true
 | |
| 		}
 | |
| 	}
 | |
| 	if !podEvicted {
 | |
| 		t.Error("expected pods to be evicted from the deleted node")
 | |
| 	}
 | |
| }
 | |
| 
 | |
| func newNode(name string) *api.Node {
 | |
| 	return &api.Node{
 | |
| 		ObjectMeta: api.ObjectMeta{Name: name},
 | |
| 		Spec: api.NodeSpec{
 | |
| 			ExternalID: name,
 | |
| 		},
 | |
| 		Status: api.NodeStatus{
 | |
| 			Capacity: api.ResourceList{
 | |
| 				api.ResourceName(api.ResourceCPU):    resource.MustParse("10"),
 | |
| 				api.ResourceName(api.ResourceMemory): resource.MustParse("10G"),
 | |
| 			},
 | |
| 		},
 | |
| 	}
 | |
| }
 | |
| 
 | |
| func newPod(name, host string) *api.Pod {
 | |
| 	return &api.Pod{ObjectMeta: api.ObjectMeta{Name: name}, Spec: api.PodSpec{NodeName: host}}
 | |
| }
 | |
| 
 | |
| func contains(node *api.Node, nodes []*api.Node) bool {
 | |
| 	for i := 0; i < len(nodes); i++ {
 | |
| 		if node.Name == nodes[i].Name {
 | |
| 			return true
 | |
| 		}
 | |
| 	}
 | |
| 	return false
 | |
| }
 | 
