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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.jdisc.state;
import com.fasterxml.jackson.databind.JsonNode;
import com.yahoo.component.Vtag;
import com.yahoo.container.jdisc.RequestHandlerTestDriver;
import com.yahoo.vespa.defaults.Defaults;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author Simon Thoresen Hult
*/
public class StateHandlerTest extends StateHandlerTestBase {
private static final String V1_URI = URI_BASE + "/state/v1/";
private static StateHandler stateHandler;
@BeforeEach
public void setupHandler() {
stateHandler = new StateHandler(monitor, timer, applicationMetadataConfig, snapshotProviderRegistry);
testDriver = new RequestHandlerTestDriver(stateHandler);
}
@Test
void testStatusReportPriorToFirstSnapshot() throws Exception {
JsonNode json = requestAsJson(V1_URI + "/all");
assertEquals("up", json.get("status").get("code").asText(), json.toString());
assertFalse(json.get("metrics").has("values"), json.toString());
}
@Test
void testReportIncludesMetricsAfterSnapshot() throws Exception {
var snapshot = new MetricSnapshot();
snapshot.add(null, "foo", 1);
snapshot.set(null, "bar", 4);
snapshotProvider.setSnapshot(snapshot);
JsonNode json1 = requestAsJson(V1_URI + "metrics");
assertEquals("up", json1.get("status").get("code").asText(), json1.toString());
assertEquals(2, json1.get("metrics").get("values").size(), json1.toString());
}
@Test
void testCountMetricCount() throws Exception {
var snapshot = new MetricSnapshot();
snapshot.add(null, "foo", 4);
snapshot.add(null, "foo", 2);
snapshotProvider.setSnapshot(snapshot);
JsonNode json = requestAsJson(V1_URI + "all");
assertEquals("up", json.get("status").get("code").asText(), json.toString());
assertEquals(1, json.get("metrics").get("values").size(), json.toString());
assertEquals(6,
json.get("metrics").get("values").get(0).get("values").get("count").asDouble(), 0.001, json.toString());
}
@Test
void gaugeSnapshotsTracksCountMinMaxAvgPerPeriod() throws Exception {
var snapshot = new MetricSnapshot();
snapshot.set(null, "bar", 20);
snapshot.set(null, "bar", 40);
snapshotProvider.setSnapshot(snapshot);
JsonNode json = requestAsJson(V1_URI + "all");
JsonNode metricValues = getFirstMetricValueNode(json);
assertEquals(40, metricValues.get("last").asDouble(), 0.001, json.toString());
// Last snapshot had explicit values set
assertEquals(30, metricValues.get("average").asDouble(), 0.001, json.toString());
assertEquals(20, metricValues.get("min").asDouble(), 0.001, json.toString());
assertEquals(40, metricValues.get("max").asDouble(), 0.001, json.toString());
assertEquals(2, metricValues.get("count").asInt(), json.toString());
}
private JsonNode getFirstMetricValueNode(JsonNode root) {
assertEquals(1, root.get("metrics").get("values").size(), root.toString());
JsonNode metricValues = root.get("metrics").get("values").get(0).get("values");
assertTrue(metricValues.has("last"), root.toString());
return metricValues;
}
@Test
void testReadabilityOfJsonReport() {
var snapshot = new MetricSnapshot(0L, SNAPSHOT_INTERVAL, TimeUnit.MILLISECONDS);
snapshot.add(null, "foo", 1);
var ctx = StateMetricContext.newInstance(Map.of("component", "test"));
snapshot.set(ctx, "bar", 2);
snapshot.set(ctx, "bar", 3);
snapshot.set(ctx, "bar", 4);
snapshot.set(ctx, "bar", 5);
snapshotProvider.setSnapshot(snapshot);
advanceToNextSnapshot();
assertEquals("{\n" +
" \"time\" : 300000,\n" +
" \"status\" : {\n" +
" \"code\" : \"up\"\n" +
" },\n" +
" \"metrics\" : {\n" +
" \"snapshot\" : {\n" +
" \"from\" : 0.0,\n" +
" \"to\" : 300.0\n" +
" },\n" +
" \"values\" : [ {\n" +
" \"name\" : \"foo\",\n" +
" \"values\" : {\n" +
" \"count\" : 1,\n" +
" \"rate\" : 0.0033333333333333335\n" +
" }\n" +
" }, {\n" +
" \"name\" : \"bar\",\n" +
" \"values\" : {\n" +
" \"average\" : 3.5,\n" +
" \"sum\" : 14.0,\n" +
" \"count\" : 4,\n" +
" \"last\" : 5.0,\n" +
" \"max\" : 5.0,\n" +
" \"min\" : 2.0,\n" +
" \"rate\" : 0.013333333333333334\n" +
" },\n" +
" \"dimensions\" : {\n" +
" \"component\" : \"test\"\n" +
" }\n" +
" } ]\n" +
" }\n" +
"}",
requestAsString(V1_URI + "all"));
}
@Test
void testHealthAggregation() throws Exception {
var context1 = StateMetricContext.newInstance(Map.of("port", Defaults.getDefaults().vespaWebServicePort()));
var context2 = StateMetricContext.newInstance(Map.of("port", 80));
var snapshot = new MetricSnapshot();
snapshot.add(context1, "serverNumSuccessfulResponses", 4);
snapshot.add(context2, "serverNumSuccessfulResponses", 2);
snapshot.set(context1, "serverTotalSuccessfulResponseLatency", 20);
snapshot.set(context2, "serverTotalSuccessfulResponseLatency", 40);
snapshot.add(context1, "random", 3);
snapshotProvider.setSnapshot(snapshot);
JsonNode json = requestAsJson(V1_URI + "health");
assertEquals("up", json.get("status").get("code").asText(), json.toString());
assertEquals(2, json.get("metrics").get("values").size(), json.toString());
assertEquals("requestsPerSecond",
json.get("metrics").get("values").get(0).get("name").asText(),
json.toString());
assertEquals(6,
json.get("metrics").get("values").get(0).get("values").get("count").asDouble(), 0.001, json.toString());
assertEquals("latencySeconds",
json.get("metrics").get("values").get(1).get("name").asText(),
json.toString());
assertEquals(0.03,
json.get("metrics").get("values").get(1).get("values").get("average").asDouble(), 0.001, json.toString());
}
@Test
void testStateConfig() throws Exception {
JsonNode root = requestAsJson(V1_URI + "config");
JsonNode config = root.get("config");
JsonNode container = config.get("container");
assertEquals(META_GENERATION, container.get("generation").asLong());
}
@Test
void testStateVersion() throws Exception {
JsonNode root = requestAsJson(V1_URI + "version");
JsonNode version = root.get("version");
assertEquals(Vtag.currentVersion.toString(), version.asText());
}
}
|
