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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.autoscale;
import com.yahoo.collections.Pair;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.Capacity;
import com.yahoo.config.provision.ClusterResources;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.transaction.Mutex;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.provisioning.ProvisioningTester;
import com.yahoo.vespa.hosted.provision.testutils.OrchestratorMock;
import com.yahoo.vespa.applicationmodel.HostName;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author bratseth
*/
public class MetricsV2MetricsFetcherTest {
private static final double delta = 0.00000001;
@Test
public void testMetricsFetch() throws Exception {
NodeResources resources = new NodeResources(1, 10, 100, 1);
ProvisioningTester tester = new ProvisioningTester.Builder().build();
OrchestratorMock orchestrator = new OrchestratorMock();
MockHttpClient httpClient = new MockHttpClient();
MetricsV2MetricsFetcher fetcher = new MetricsV2MetricsFetcher(tester.nodeRepository(), orchestrator, httpClient);
tester.makeReadyNodes(4, resources); // Creates (in order) host-1.yahoo.com, host-2.yahoo.com, host-3.yahoo.com, host-4.yahoo.com
tester.activateTenantHosts();
ApplicationId application1 = ProvisioningTester.applicationId();
ApplicationId application2 = ProvisioningTester.applicationId();
tester.deploy(application1, Capacity.from(new ClusterResources(2, 1, resources))); // host-1.yahoo.com, host-2.yahoo.com
tester.deploy(application2, Capacity.from(new ClusterResources(2, 1, resources))); // host-4.yahoo.com, host-3.yahoo.com
orchestrator.suspend(new HostName("host-4.yahoo.com"));
{
httpClient.cannedResponse = cannedResponseForApplication1;
List<Pair<String, NodeMetricSnapshot>> values = new ArrayList<>(fetcher.fetchMetrics(application1).get().nodeMetrics());
assertEquals("http://host-1.yahoo.com:4080/metrics/v2/values?consumer=autoscaling",
httpClient.requestsReceived.get(0));
assertEquals(2, values.size());
assertEquals("host-1.yahoo.com", values.get(0).getFirst());
assertEquals(0.162, values.get(0).getSecond().load().cpu(), delta);
assertEquals(0.231, values.get(0).getSecond().load().memory(), delta);
assertEquals(0.820, values.get(0).getSecond().load().disk(), delta);
assertEquals("host-2.yahoo.com", values.get(1).getFirst());
assertEquals(0.0, values.get(1).getSecond().load().cpu(), delta);
assertEquals(0.35, values.get(1).getSecond().load().memory(), delta);
assertEquals(0.45, values.get(1).getSecond().load().disk(), delta);
assertEquals(45.0, values.get(1).getSecond().queryRate(), delta);
}
{
httpClient.cannedResponse = cannedResponseForApplication2;
List<Pair<String, NodeMetricSnapshot>> values = new ArrayList<>(fetcher.fetchMetrics(application2).get().nodeMetrics());
assertEquals("http://host-3.yahoo.com:4080/metrics/v2/values?consumer=autoscaling",
httpClient.requestsReceived.get(1));
assertEquals(1, values.size());
assertEquals("host-3.yahoo.com", values.get(0).getFirst());
assertEquals(0.10, values.get(0).getSecond().load().cpu(), delta);
assertEquals(0.15, values.get(0).getSecond().load().memory(), delta);
assertEquals(0.20, values.get(0).getSecond().load().disk(), delta);
assertEquals(3, values.get(0).getSecond().generation(), delta);
assertFalse(values.get(0).getSecond().inService());
assertTrue(values.get(0).getSecond().stable());
}
{ // read response 2 when unstable
httpClient.cannedResponse = cannedResponseForApplication2;
try (Mutex lock = tester.nodeRepository().applications().lock(application1)) {
tester.nodeRepository().nodes().write(tester.nodeRepository().nodes().list(Node.State.active).owner(application2)
.first().get().retire(tester.clock().instant()), lock);
}
List<Pair<String, NodeMetricSnapshot>> values = new ArrayList<>(fetcher.fetchMetrics(application2).get().nodeMetrics());
assertFalse(values.get(0).getSecond().stable());
}
{
httpClient.cannedResponse = cannedResponseForApplication3;
List<Pair<String, NodeMetricSnapshot>> values = new ArrayList<>(fetcher.fetchMetrics(application2).get().nodeMetrics());
assertEquals("http://host-3.yahoo.com:4080/metrics/v2/values?consumer=autoscaling",
httpClient.requestsReceived.get(1));
assertEquals(1, values.size());
assertEquals("host-3.yahoo.com", values.get(0).getFirst());
assertEquals(0.13, values.get(0).getSecond().load().cpu(), delta);
assertEquals(0.9375, values.get(0).getSecond().load().memory(), delta);
}
}
private static class MockHttpClient implements MetricsV2MetricsFetcher.AsyncHttpClient {
List<String> requestsReceived = new ArrayList<>();
String cannedResponse = null;
@Override
public CompletableFuture<String> get(String url) {
requestsReceived.add(url);
return CompletableFuture.completedFuture(cannedResponse);
}
@Override
public void close() { }
}
final String cannedResponseForApplication1 =
"""
{
"nodes": [
{
"hostname": "host-1.yahoo.com",
"role": "role0",
"node": {
"timestamp": 1234,
"metrics": [
{
"values": {
"cpu.util": 16.2,
"mem.util": 23.1,
"disk.util": 82
},
"dimensions": {
"state": "active"
}
}
]
}
},
{
"hostname": "host-2.yahoo.com",
"role": "role1",
"node": {
"timestamp": 1200,
"metrics": [
{
"values": {
"mem.util": 30,
"disk.util": 40
},
"dimensions": {
"state": "active"
}
}
]
},
"services": [
{
"name": "searchnode",
"timestamp": 1234,
"status": {
"code": "up"
},
"metrics": [
{
"values": {
"content.proton.documentdb.matching.queries.rate": 20.5
},
"dimensions": {
"documentType": "music"
}
},
{
"values": {
"content.proton.resource_usage.memory.average": 0.35,
"content.proton.resource_usage.disk.average": 0.45
},
"dimensions": {
}
},
{
"values": {
"content.proton.documentdb.matching.queries.rate": 13.5
},
"dimensions": {
"documentType": "books"
}
},
{
"values": {
"queries.rate": 11.0
},
"dimensions": {
}
}
]
}
]
}
]
}
""";
final String cannedResponseForApplication2 =
"""
{
"nodes": [
{
"hostname": "host-3.yahoo.com",
"role": "role0",
"node": {
"timestamp": 1300,
"metrics": [
{
"values": {
"cpu.util": 10,
"gpu.util": 8,
"mem.util": 15,
"gpu.memory.used": 0,
"gpu.memory.total": 8,
"disk.util": 20,
"application_generation.last": 3,
"in_service.last": 0
},
"dimensions": {
"state": "active"
}
}
]
}
}
]
}
""";
final String cannedResponseForApplication3 =
"""
{
"nodes": [
{
"hostname": "host-3.yahoo.com",
"role": "role0",
"node": {
"timestamp": 1300,
"metrics": [
{
"values": {
"cpu.util": 10,
"gpu.util": 13,
"mem.util": 15,
"gpu.memory.used": 7.5,
"gpu.memory.total": 8,
"disk.util": 20,
"application_generation.last": 3,
"in_service.last": 0
},
"dimensions": {
"state": "active"
}
}
]
}
}
]
}
""";
}
|
