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// Copyright Yahoo. 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.component.Version;
import com.yahoo.config.provision.NodeType;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.NodeList;
import com.yahoo.vespa.hosted.provision.maintenance.RetiredExpirer;
import com.yahoo.vespa.hosted.provision.maintenance.TestMetric;
import com.yahoo.vespa.hosted.provision.node.Agent;
import com.yahoo.vespa.hosted.provision.testutils.MockDeployer;
import com.yahoo.vespa.service.duper.InfraApplication;
import org.junit.Before;
import org.junit.Test;
import java.time.Duration;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* Tests provisioning by node type instead of by count and flavor
*
* @author bratseth
*/
public class NodeTypeProvisioningTest {
private final ProvisioningTester tester = new ProvisioningTester.Builder().build();
private final InfraApplication proxyApp = ProvisioningTester.infraApplication(NodeType.proxy);
@Before
public void setup() {
tester.makeReadyNodes( 1, "small", NodeType.proxy);
tester.makeReadyNodes( 3, "small", NodeType.host);
tester.makeReadyNodes( 5, "small", NodeType.tenant);
tester.makeReadyNodes(10, "large", NodeType.proxy);
tester.makeReadyNodes(20, "large", NodeType.host);
tester.makeReadyNodes(40, "large", NodeType.tenant);
}
@Test
public void proxy_deployment() {
{ // Deploy
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals("Activated all proxies", 11, nodes.size());
}
{ // Redeploy with no changes
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(11, nodes.size());
}
{ // Add 2 ready proxies then redeploy
tester.makeReadyNodes(2, "small", NodeType.proxy);
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(13, nodes.size());
}
{ // Remove 3 proxies then redeploy
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
tester.nodeRepository().nodes().fail(nodes.asList().get(0).hostname(), Agent.system, "Failing to unit test");
tester.nodeRepository().nodes().fail(nodes.asList().get(1).hostname(), Agent.system, "Failing to unit test");
tester.nodeRepository().nodes().fail(nodes.asList().get(5).hostname(), Agent.system, "Failing to unit test");
tester.prepareAndActivateInfraApplication(proxyApp);
nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(10, nodes.size());
}
}
@Test
public void retire_proxy() {
MockDeployer deployer = new MockDeployer(tester.provisioner(),
tester.clock(),
List.of(new MockDeployer.ApplicationContext(proxyApp, Version.fromString("6.42"))));
RetiredExpirer retiredExpirer = new RetiredExpirer(tester.nodeRepository(),
deployer,
new TestMetric(),
Duration.ofDays(30),
Duration.ofMinutes(10));
{ // Deploy
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals("Activated all proxies", 11, nodes.size());
}
Node nodeToRetire = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy).asList().get(5);
{ // Pick out a node and retire it
tester.nodeRepository().nodes().write(nodeToRetire.withWantToRetire(true, Agent.system, tester.clock().instant()), () -> {});
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(11, nodes.size());
// Verify that wantToRetire has been propagated
assertTrue(tester.nodeRepository().nodes().node(nodeToRetire.hostname())
.flatMap(Node::allocation)
.map(allocation -> allocation.membership().retired())
.orElseThrow(RuntimeException::new));
}
{ // Redeploying while the node is still retiring has no effect
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(11, nodes.size());
// Verify that the node is still marked as retired
assertTrue(tester.nodeRepository().nodes().node(nodeToRetire.hostname())
.flatMap(Node::allocation)
.map(allocation -> allocation.membership().retired())
.orElseThrow(RuntimeException::new));
}
{
tester.advanceTime(Duration.ofMinutes(11));
retiredExpirer.run();
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(10, nodes.size());
// Verify that the node is now inactive
assertEquals(Node.State.dirty, tester.nodeRepository().nodes().node(nodeToRetire.hostname())
.orElseThrow(RuntimeException::new).state());
}
}
@Test
public void retire_multiple_proxy_simultaneously() {
MockDeployer deployer = new MockDeployer(tester.provisioner(),
tester.clock(),
List.of(new MockDeployer.ApplicationContext(proxyApp, Version.fromString("6.42"))));
RetiredExpirer retiredExpirer = new RetiredExpirer(tester.nodeRepository(),
deployer,
new TestMetric(),
Duration.ofDays(30),
Duration.ofMinutes(10));
final int numNodesToRetire = 5;
{ // Deploy
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals("Activated all proxies", 11, nodes.size());
}
List<Node> nodesToRetire = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy).asList()
.subList(3, 3 + numNodesToRetire);
{
nodesToRetire.forEach(nodeToRetire ->
tester.nodeRepository().nodes().write(nodeToRetire.withWantToRetire(true, Agent.system, tester.clock().instant()), () -> {}));
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(11, nodes.size());
// Verify that wantToRetire has been propagated
List<Node> nodesCurrentlyRetiring = nodes.stream()
.filter(node -> node.allocation().get().membership().retired())
.toList();
assertEquals(5, nodesCurrentlyRetiring.size());
// The retiring nodes should be the nodes we marked for retirement
assertTrue(Set.copyOf(nodesToRetire).containsAll(nodesCurrentlyRetiring));
}
{ // Redeploying while the nodes are still retiring has no effect
tester.prepareAndActivateInfraApplication(proxyApp);
NodeList nodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy);
assertEquals(11, nodes.size());
// Verify that wantToRetire has been propagated
List<Node> nodesCurrentlyRetiring = nodes.stream()
.filter(node -> node.allocation().get().membership().retired())
.toList();
assertEquals(5, nodesCurrentlyRetiring.size());
}
{
// Let all retired nodes expire
tester.advanceTime(Duration.ofMinutes(11));
retiredExpirer.run();
tester.prepareAndActivateInfraApplication(proxyApp);
// All currently active proxy nodes are not marked with wantToRetire or as retired
long numRetiredActiveProxyNodes = tester.nodeRepository().nodes().list(Node.State.active).nodeType(NodeType.proxy).stream()
.filter(node -> !node.status().wantToRetire())
.filter(node -> !node.allocation().get().membership().retired())
.count();
assertEquals(6, numRetiredActiveProxyNodes);
// All the nodes that were marked with wantToRetire earlier are now dirty
assertEquals(nodesToRetire.stream().map(Node::hostname).collect(Collectors.toSet()),
tester.nodeRepository().nodes().list(Node.State.dirty).stream().map(Node::hostname).collect(Collectors.toSet()));
}
}
}
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