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.provisioning;
import com.yahoo.config.provision.Flavor;
import com.yahoo.config.provision.NodeFlavors;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.config.provision.NodeType;
import com.yahoo.vespa.hosted.provision.LockedNodeList;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.node.IP;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
/**
* @author smorgrav
*/
public class HostCapacityTest {
private final HostResourcesCalculator hostResourcesCalculator = mock(HostResourcesCalculator.class);
private HostCapacity capacity;
private List<Node> nodes;
private Node host1, host2, host3;
private final NodeResources resources1 = new NodeResources(1, 30, 20, 1.5);
private final NodeResources resources2 = new NodeResources(2, 40, 40, 0.5);
@Before
public void setup() {
doAnswer(invocation -> ((Flavor)invocation.getArguments()[0]).resources()).when(hostResourcesCalculator).advertisedResourcesOf(any());
// Create flavors
NodeFlavors nodeFlavors = FlavorConfigBuilder.createDummies("host", "docker", "docker2");
// Create three docker hosts
host1 = Node.create("host1", new IP.Config(Set.of("::1"), generateIPs(2, 4)), "host1", nodeFlavors.getFlavorOrThrow("host"), NodeType.host).build();
host2 = Node.create("host2", new IP.Config(Set.of("::11"), generateIPs(12, 3)), "host2", nodeFlavors.getFlavorOrThrow("host"), NodeType.host).build();
host3 = Node.create("host3", new IP.Config(Set.of("::21"), generateIPs(22, 1)), "host3", nodeFlavors.getFlavorOrThrow("host"), NodeType.host).build();
// Add two containers to host1
var nodeA = Node.createDockerNode(Set.of("::2"), "nodeA", "host1", resources1, NodeType.tenant).build();
var nodeB = Node.createDockerNode(Set.of("::3"), "nodeB", "host1", resources1, NodeType.tenant).build();
// Add two containers to host 2 (same as host 1)
var nodeC = Node.createDockerNode(Set.of("::12"), "nodeC", "host2", resources1, NodeType.tenant).build();
var nodeD = Node.createDockerNode(Set.of("::13"), "nodeD", "host2", resources1, NodeType.tenant).build();
// Add a larger container to host3
var nodeE = Node.createDockerNode(Set.of("::22"), "nodeE", "host3", resources2, NodeType.tenant).build();
// init docker host capacity
nodes = new ArrayList<>(List.of(host1, host2, host3, nodeA, nodeB, nodeC, nodeD, nodeE));
capacity = new HostCapacity(new LockedNodeList(nodes, () -> {}), hostResourcesCalculator);
}
@Test
public void hasCapacity() {
assertTrue(capacity.hasCapacity(host1, resources1));
assertTrue(capacity.hasCapacity(host1, resources2));
assertTrue(capacity.hasCapacity(host2, resources1));
assertTrue(capacity.hasCapacity(host2, resources2));
assertFalse(capacity.hasCapacity(host3, resources1)); // No ip available
assertFalse(capacity.hasCapacity(host3, resources2)); // No ip available
// Add a new node to host1 to deplete the memory resource
Node nodeF = Node.createDockerNode(Set.of("::6"), "nodeF", "host1", resources1, NodeType.tenant).build();
nodes.add(nodeF);
capacity = new HostCapacity(new LockedNodeList(nodes, () -> {}), hostResourcesCalculator);
assertFalse(capacity.hasCapacity(host1, resources1));
assertFalse(capacity.hasCapacity(host1, resources2));
}
@Test
public void freeIPs() {
assertEquals(2, capacity.freeIPs(host1));
assertEquals(1, capacity.freeIPs(host2));
assertEquals(0, capacity.freeIPs(host3));
}
@Test
public void freeCapacityOf() {
assertEquals(new NodeResources(5, 40, 80, 2, NodeResources.DiskSpeed.fast, NodeResources.StorageType.remote),
capacity.freeCapacityOf(host1, false));
assertEquals(new NodeResources(5, 60, 80, 4.5, NodeResources.DiskSpeed.fast, NodeResources.StorageType.remote),
capacity.freeCapacityOf(host3, false));
doAnswer(invocation -> {
NodeResources totalHostResources = ((Flavor) invocation.getArguments()[0]).resources();
return totalHostResources.subtract(new NodeResources(1, 2, 3, 0.5, NodeResources.DiskSpeed.any));
}).when(hostResourcesCalculator).advertisedResourcesOf(any());
assertEquals(new NodeResources(4, 38, 77, 1.5, NodeResources.DiskSpeed.fast, NodeResources.StorageType.remote),
capacity.freeCapacityOf(host1, false));
assertEquals(new NodeResources(4, 58, 77, 4, NodeResources.DiskSpeed.fast, NodeResources.StorageType.remote),
capacity.freeCapacityOf(host3, false));
}
@Test
public void devhostCapacityTest() {
// Dev host can assign both configserver and tenant containers.
var nodeFlavors = FlavorConfigBuilder.createDummies("devhost", "container");
var devHost = Node.create("devhost", new IP.Config(Set.of("::1"), generateIPs(2, 10)), "devhost", nodeFlavors.getFlavorOrThrow("devhost"), NodeType.devhost).build();
var cfg = Node.createDockerNode(Set.of("::2"), "cfg", "devhost", resources1, NodeType.config).build();
var nodes = new ArrayList<>(List.of(cfg));
var capacity = new HostCapacity(new LockedNodeList(nodes, () -> {}), hostResourcesCalculator);
assertTrue(capacity.hasCapacity(devHost, resources1));
var container1 = Node.createDockerNode(Set.of("::3"), "container1", "devhost", resources1, NodeType.tenant).build();
nodes = new ArrayList<>(List.of(cfg, container1));
capacity = new HostCapacity(new LockedNodeList(nodes, () -> {}), hostResourcesCalculator);
assertFalse(capacity.hasCapacity(devHost, resources1));
}
private Set<String> generateIPs(int start, int count) {
// Allow 4 containers
Set<String> ipAddressPool = new LinkedHashSet<>();
for (int i = start; i < (start + count); i++) {
ipAddressPool.add("::" + i);
}
return ipAddressPool;
}
}
|
