1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.maintenance;
import com.yahoo.component.Vtag;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.ClusterSpec;
import com.yahoo.config.provision.HostSpec;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.transaction.NestedTransaction;
import com.yahoo.vespa.hosted.provision.lb.LoadBalancer;
import com.yahoo.vespa.hosted.provision.lb.LoadBalancerId;
import com.yahoo.vespa.hosted.provision.node.Agent;
import com.yahoo.vespa.hosted.provision.provisioning.ProvisioningTester;
import org.junit.Test;
import java.time.Duration;
import java.util.List;
import java.util.Map;
import java.util.function.Supplier;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
/**
* @author mpolden
*/
public class LoadBalancerExpirerTest {
private ProvisioningTester tester = new ProvisioningTester.Builder().build();
@Test
public void test_remove_inactive() {
LoadBalancerExpirer expirer = new LoadBalancerExpirer(tester.nodeRepository(),
Duration.ofDays(1),
tester.loadBalancerService());
Supplier<Map<LoadBalancerId, LoadBalancer>> loadBalancers = () -> tester.nodeRepository().database().readLoadBalancers();
// Deploy two applications with load balancers
ClusterSpec.Id cluster = ClusterSpec.Id.from("qrs");
ApplicationId app1 = tester.makeApplicationId();
ApplicationId app2 = tester.makeApplicationId();
LoadBalancerId lb1 = new LoadBalancerId(app1, cluster);
LoadBalancerId lb2 = new LoadBalancerId(app2, cluster);
deployApplication(app1, cluster);
deployApplication(app2, cluster);
assertEquals(2, loadBalancers.get().size());
// Remove one application deactivates load balancers for that application
removeApplication(app1);
assertSame(LoadBalancer.State.inactive, loadBalancers.get().get(lb1).state());
assertNotSame(LoadBalancer.State.inactive, loadBalancers.get().get(lb2).state());
// Expirer defers removal while nodes are still allocated to application
expirer.maintain();
assertEquals(2, tester.loadBalancerService().instances().size());
dirtyNodesOf(app1);
// Expirer defers removal until expiration time passes
expirer.maintain();
assertTrue("Inactive load balancer not removed", tester.loadBalancerService().instances().containsKey(lb1));
// Expirer removes load balancers once expiration time passes
tester.clock().advance(Duration.ofHours(1));
expirer.maintain();
assertFalse("Inactive load balancer removed", tester.loadBalancerService().instances().containsKey(lb1));
// Active load balancer is left alone
assertSame(LoadBalancer.State.active, loadBalancers.get().get(lb2).state());
assertTrue("Active load balancer is not removed", tester.loadBalancerService().instances().containsKey(lb2));
}
@Test
public void test_expire_reserved() {
LoadBalancerExpirer expirer = new LoadBalancerExpirer(tester.nodeRepository(),
Duration.ofDays(1),
tester.loadBalancerService());
Supplier<Map<LoadBalancerId, LoadBalancer>> loadBalancers = () -> tester.nodeRepository().database().readLoadBalancers();
// Prepare application
ClusterSpec.Id cluster = ClusterSpec.Id.from("qrs");
ApplicationId app = tester.makeApplicationId();
LoadBalancerId lb = new LoadBalancerId(app, cluster);
deployApplication(app, cluster, false);
// Provisions load balancer in reserved
assertSame(LoadBalancer.State.reserved, loadBalancers.get().get(lb).state());
// Expirer does nothing
expirer.maintain();
assertSame(LoadBalancer.State.reserved, loadBalancers.get().get(lb).state());
// Application never activates and nodes are dirtied. Expirer moves load balancer to inactive after timeout
dirtyNodesOf(app);
tester.clock().advance(Duration.ofHours(1));
expirer.maintain();
assertSame(LoadBalancer.State.inactive, loadBalancers.get().get(lb).state());
// Expirer does nothing as inactive expiration time has not yet passed
expirer.maintain();
assertSame(LoadBalancer.State.inactive, loadBalancers.get().get(lb).state());
// Expirer removes inactive load balancer
tester.clock().advance(Duration.ofHours(1));
expirer.maintain();
assertFalse("Inactive load balancer removed", loadBalancers.get().containsKey(lb));
}
private void dirtyNodesOf(ApplicationId application) {
tester.nodeRepository().setDirty(tester.nodeRepository().getNodes(application), Agent.system, this.getClass().getSimpleName());
}
private void removeApplication(ApplicationId application) {
NestedTransaction transaction = new NestedTransaction();
tester.provisioner().remove(transaction, application);
transaction.commit();
}
private void deployApplication(ApplicationId application, ClusterSpec.Id cluster) {
deployApplication(application, cluster, true);
}
private void deployApplication(ApplicationId application, ClusterSpec.Id cluster, boolean activate) {
tester.makeReadyNodes(10, "d-1-1-1");
List<HostSpec> hosts = tester.prepare(application, ClusterSpec.request(ClusterSpec.Type.container, cluster,
Vtag.currentVersion, false),
2, 1,
new NodeResources(1, 1, 1, 0.3));
if (activate) {
tester.activate(application, hosts);
}
}
}
|
