com.yahoo.vespa.hosted.provision.maintenance.MetricsReporter Maven / Gradle / Ivy
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Keeps track of node assignment in a multi-application setup.
// Copyright 2017 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.Version;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.config.provision.NodeType;
import com.yahoo.jdisc.Metric;
import com.yahoo.vespa.applicationmodel.HostName;
import com.yahoo.vespa.applicationmodel.ServiceInstance;
import com.yahoo.vespa.applicationmodel.ServiceStatus;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.NodeList;
import com.yahoo.vespa.hosted.provision.NodeRepository;
import com.yahoo.vespa.hosted.provision.node.Allocation;
import com.yahoo.vespa.hosted.provision.node.History;
import com.yahoo.vespa.orchestrator.Orchestrator;
import com.yahoo.vespa.orchestrator.status.HostInfo;
import com.yahoo.vespa.orchestrator.status.HostStatus;
import com.yahoo.vespa.service.monitor.ServiceMonitor;
import java.time.Duration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import static com.yahoo.config.provision.NodeResources.DiskSpeed.any;
/**
* @author oyving
*/
public class MetricsReporter extends Maintainer {
private final Metric metric;
private final Function> orchestrator;
private final ServiceMonitor serviceMonitor;
private final Map, Metric.Context> contextMap = new HashMap<>();
private final Supplier pendingRedeploymentsSupplier;
MetricsReporter(NodeRepository nodeRepository,
Metric metric,
Orchestrator orchestrator,
ServiceMonitor serviceMonitor,
Supplier pendingRedeploymentsSupplier,
Duration interval) {
super(nodeRepository, interval);
this.metric = metric;
this.orchestrator = orchestrator.getNodeStatuses();
this.serviceMonitor = serviceMonitor;
this.pendingRedeploymentsSupplier = pendingRedeploymentsSupplier;
}
@Override
public void maintain() {
NodeList nodes = nodeRepository().list();
Map> servicesByHost =
serviceMonitor.getServiceModelSnapshot().getServiceInstancesByHostName();
nodes.forEach(node -> updateNodeMetrics(node, servicesByHost));
updateStateMetrics(nodes);
updateMaintenanceMetrics();
updateDockerMetrics(nodes);
updateTenantUsageMetrics(nodes);
}
private void updateMaintenanceMetrics() {
metric.set("hostedVespa.pendingRedeployments", pendingRedeploymentsSupplier.get(), null);
}
private void updateNodeMetrics(Node node, Map> servicesByHost) {
Metric.Context context;
Optional allocation = node.allocation();
if (allocation.isPresent()) {
ApplicationId applicationId = allocation.get().owner();
context = getContextAt(
"state", node.state().name(),
"host", node.hostname(),
"tenantName", applicationId.tenant().value(),
"applicationId", applicationId.serializedForm().replace(':', '.'),
"app", toApp(applicationId),
"clustertype", allocation.get().membership().cluster().type().name(),
"clusterid", allocation.get().membership().cluster().id().value());
long wantedRestartGeneration = allocation.get().restartGeneration().wanted();
metric.set("wantedRestartGeneration", wantedRestartGeneration, context);
long currentRestartGeneration = allocation.get().restartGeneration().current();
metric.set("currentRestartGeneration", currentRestartGeneration, context);
boolean wantToRestart = currentRestartGeneration < wantedRestartGeneration;
metric.set("wantToRestart", wantToRestart ? 1 : 0, context);
metric.set("retired", allocation.get().membership().retired() ? 1 : 0, context);
Version wantedVersion = allocation.get().membership().cluster().vespaVersion();
double wantedVersionNumber = getVersionAsNumber(wantedVersion);
metric.set("wantedVespaVersion", wantedVersionNumber, context);
Optional currentVersion = node.status().vespaVersion();
boolean converged = currentVersion.isPresent() &&
currentVersion.get().equals(wantedVersion);
metric.set("wantToChangeVespaVersion", converged ? 0 : 1, context);
} else {
context = getContextAt(
"state", node.state().name(),
"host", node.hostname());
}
Optional currentVersion = node.status().vespaVersion();
if (currentVersion.isPresent()) {
double currentVersionNumber = getVersionAsNumber(currentVersion.get());
metric.set("currentVespaVersion", currentVersionNumber, context);
}
long wantedRebootGeneration = node.status().reboot().wanted();
metric.set("wantedRebootGeneration", wantedRebootGeneration, context);
long currentRebootGeneration = node.status().reboot().current();
metric.set("currentRebootGeneration", currentRebootGeneration, context);
boolean wantToReboot = currentRebootGeneration < wantedRebootGeneration;
metric.set("wantToReboot", wantToReboot ? 1 : 0, context);
metric.set("wantToRetire", node.status().wantToRetire() ? 1 : 0, context);
metric.set("wantToDeprovision", node.status().wantToDeprovision() ? 1 : 0, context);
metric.set("failReport", NodeFailer.reasonsToFailParentHost(node).isEmpty() ? 0 : 1, context);
orchestrator.apply(new HostName(node.hostname()))
.map(info -> info.status().isSuspended() ? 1 : 0)
.ifPresent(allowedToBeDown -> metric.set("allowedToBeDown", allowedToBeDown, context));
long numberOfServices;
HostName hostName = new HostName(node.hostname());
List services = servicesByHost.get(hostName);
if (services == null) {
numberOfServices = 0;
} else {
Map servicesCount = services.stream().collect(
Collectors.groupingBy(ServiceInstance::serviceStatus, Collectors.counting()));
numberOfServices = servicesCount.values().stream().mapToLong(Long::longValue).sum();
metric.set(
"numberOfServicesUp",
servicesCount.getOrDefault(ServiceStatus.UP, 0L),
context);
metric.set(
"numberOfServicesNotChecked",
servicesCount.getOrDefault(ServiceStatus.NOT_CHECKED, 0L),
context);
long numberOfServicesDown = servicesCount.getOrDefault(ServiceStatus.DOWN, 0L);
metric.set("numberOfServicesDown", numberOfServicesDown, context);
metric.set("someServicesDown", (numberOfServicesDown > 0 ? 1 : 0), context);
boolean badNode = NodeFailer.badNode(services);
metric.set("nodeFailerBadNode", (badNode ? 1 : 0), context);
boolean nodeDownInNodeRepo = node.history().event(History.Event.Type.down).isPresent();
metric.set("downInNodeRepo", (nodeDownInNodeRepo ? 1 : 0), context);
}
metric.set("numberOfServices", numberOfServices, context);
}
private static String toApp(ApplicationId applicationId) {
return applicationId.application().value() + "." + applicationId.instance().value();
}
/**
* A version 6.163.20 will be returned as a number 163.020. The major
* version can normally be inferred. As long as the micro version stays
* below 1000 these numbers sort like Version.
*/
private static double getVersionAsNumber(Version version) {
return version.getMinor() + version.getMicro() / 1000.0;
}
private Metric.Context getContextAt(String... point) {
if (point.length % 2 != 0)
throw new IllegalArgumentException("Dimension specification comes in pairs");
Map dimensions = new HashMap<>();
for (int i = 0; i < point.length; i += 2) {
dimensions.put(point[i], point[i + 1]);
}
return contextMap.computeIfAbsent(dimensions, metric::createContext);
}
private void updateStateMetrics(NodeList nodes) {
Map> nodesByState = nodes.nodeType(NodeType.tenant).asList().stream()
.collect(Collectors.groupingBy(Node::state));
// Metrics pr state
for (Node.State state : Node.State.values()) {
List nodesInState = nodesByState.getOrDefault(state, List.of());
metric.set("hostedVespa." + state.name() + "Hosts", nodesInState.size(), null);
}
}
private void updateDockerMetrics(NodeList nodes) {
NodeResources totalCapacity = getCapacityTotal(nodes);
metric.set("hostedVespa.docker.totalCapacityCpu", totalCapacity.vcpu(), null);
metric.set("hostedVespa.docker.totalCapacityMem", totalCapacity.memoryGb(), null);
metric.set("hostedVespa.docker.totalCapacityDisk", totalCapacity.diskGb(), null);
NodeResources totalFreeCapacity = getFreeCapacityTotal(nodes);
metric.set("hostedVespa.docker.freeCapacityCpu", totalFreeCapacity.vcpu(), null);
metric.set("hostedVespa.docker.freeCapacityMem", totalFreeCapacity.memoryGb(), null);
metric.set("hostedVespa.docker.freeCapacityDisk", totalFreeCapacity.diskGb(), null);
}
private void updateTenantUsageMetrics(NodeList nodes) {
nodes.nodeType(NodeType.tenant).stream()
.filter(node -> node.allocation().isPresent())
.collect(Collectors.groupingBy(node -> node.allocation().get().owner()))
.forEach(
(applicationId, applicationNodes) -> {
var allocatedCapacity = applicationNodes.stream()
.map(node -> node.allocation().get().requestedResources().justNumbers())
.reduce(new NodeResources(0, 0, 0, 0, any), NodeResources::add);
var context = getContextAt(
"tenantName", applicationId.tenant().value(),
"applicationId", applicationId.serializedForm().replace(':', '.'),
"app", toApp(applicationId));
metric.set("hostedVespa.docker.allocatedCapacityCpu", allocatedCapacity.vcpu(), context);
metric.set("hostedVespa.docker.allocatedCapacityMem", allocatedCapacity.memoryGb(), context);
metric.set("hostedVespa.docker.allocatedCapacityDisk", allocatedCapacity.diskGb(), context);
}
);
}
private static NodeResources getCapacityTotal(NodeList nodes) {
return nodes.nodeType(NodeType.host).asList().stream()
.map(host -> host.flavor().resources())
.map(resources -> resources.justNumbers())
.reduce(new NodeResources(0, 0, 0, 0, any), NodeResources::add);
}
private static NodeResources getFreeCapacityTotal(NodeList nodes) {
return nodes.nodeType(NodeType.host).asList().stream()
.map(n -> freeCapacityOf(nodes, n))
.map(resources -> resources.justNumbers())
.reduce(new NodeResources(0, 0, 0, 0, any), NodeResources::add);
}
private static NodeResources freeCapacityOf(NodeList nodes, Node dockerHost) {
return nodes.childrenOf(dockerHost).asList().stream()
.map(node -> node.flavor().resources().justNumbers())
.reduce(dockerHost.flavor().resources().justNumbers(), NodeResources::subtract);
}
}
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