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// Copyright 2019 Oath Inc. 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.google.inject.Inject;
import com.yahoo.component.AbstractComponent;
import com.yahoo.config.provision.Deployer;
import com.yahoo.config.provision.Environment;
import com.yahoo.config.provision.HostLivenessTracker;
import com.yahoo.config.provision.InfraDeployer;
import com.yahoo.config.provision.Zone;
import com.yahoo.jdisc.Metric;
import com.yahoo.vespa.flags.FlagSource;
import com.yahoo.vespa.hosted.provision.NodeRepository;
import com.yahoo.vespa.hosted.provision.autoscale.NodeMetrics;
import com.yahoo.vespa.hosted.provision.autoscale.NodeMetricsDb;
import com.yahoo.vespa.hosted.provision.provisioning.ProvisionServiceProvider;
import com.yahoo.vespa.orchestrator.Orchestrator;
import com.yahoo.vespa.service.monitor.ServiceMonitor;
import java.time.Clock;
import java.time.Duration;
import java.util.Arrays;
import java.util.Optional;
import java.util.logging.Logger;
/**
* A component which sets up all the node repo maintenance jobs.
*
* @author bratseth
*/
public class NodeRepositoryMaintenance extends AbstractComponent {
private static final Logger log = Logger.getLogger(NodeRepositoryMaintenance.class.getName());
private static final String envPrefix = "vespa_node_repository__";
private final NodeFailer nodeFailer;
private final PeriodicApplicationMaintainer periodicApplicationMaintainer;
private final OperatorChangeApplicationMaintainer operatorChangeApplicationMaintainer;
private final ReservationExpirer reservationExpirer;
private final InactiveExpirer inactiveExpirer;
private final RetiredExpirer retiredExpirer;
private final FailedExpirer failedExpirer;
private final DirtyExpirer dirtyExpirer;
private final ProvisionedExpirer provisionedExpirer;
private final NodeRebooter nodeRebooter;
private final MetricsReporter metricsReporter;
private final InfrastructureProvisioner infrastructureProvisioner;
private final Optional<LoadBalancerExpirer> loadBalancerExpirer;
private final Optional<DynamicProvisioningMaintainer> dynamicProvisioningMaintainer;
private final CapacityReportMaintainer capacityReportMaintainer;
private final OsUpgradeActivator osUpgradeActivator;
private final Rebalancer rebalancer;
private final NodeMetricsDbMaintainer nodeMetricsDbMaintainer;
private final AutoscalingMaintainer autoscalingMaintainer;
private final ScalingSuggestionsMaintainer scalingSuggestionsMaintainer;
@SuppressWarnings("unused")
@Inject
public NodeRepositoryMaintenance(NodeRepository nodeRepository, Deployer deployer, InfraDeployer infraDeployer,
HostLivenessTracker hostLivenessTracker, ServiceMonitor serviceMonitor,
Zone zone, Orchestrator orchestrator, Metric metric,
ProvisionServiceProvider provisionServiceProvider, FlagSource flagSource,
NodeMetrics nodeMetrics, NodeMetricsDb nodeMetricsDb) {
this(nodeRepository, deployer, infraDeployer, hostLivenessTracker, serviceMonitor, zone, Clock.systemUTC(),
orchestrator, metric, provisionServiceProvider, flagSource, nodeMetrics, nodeMetricsDb);
}
public NodeRepositoryMaintenance(NodeRepository nodeRepository, Deployer deployer, InfraDeployer infraDeployer,
HostLivenessTracker hostLivenessTracker, ServiceMonitor serviceMonitor,
Zone zone, Clock clock, Orchestrator orchestrator, Metric metric,
ProvisionServiceProvider provisionServiceProvider, FlagSource flagSource,
NodeMetrics nodeMetrics, NodeMetricsDb nodeMetricsDb) {
DefaultTimes defaults = new DefaultTimes(zone);
nodeFailer = new NodeFailer(deployer, hostLivenessTracker, serviceMonitor, nodeRepository, defaults.failGrace, clock, orchestrator, throttlePolicyFromEnv().orElse(defaults.throttlePolicy), metric);
periodicApplicationMaintainer = new PeriodicApplicationMaintainer(deployer, metric, nodeRepository, defaults.redeployMaintainerInterval, defaults.periodicRedeployInterval);
operatorChangeApplicationMaintainer = new OperatorChangeApplicationMaintainer(deployer, metric, nodeRepository, defaults.operatorChangeRedeployInterval);
reservationExpirer = new ReservationExpirer(nodeRepository, clock, defaults.reservationExpiry);
retiredExpirer = new RetiredExpirer(nodeRepository, orchestrator, deployer, metric, clock, defaults.retiredInterval, defaults.retiredExpiry);
inactiveExpirer = new InactiveExpirer(nodeRepository, clock, defaults.inactiveExpiry);
failedExpirer = new FailedExpirer(nodeRepository, zone, clock, defaults.failedExpirerInterval);
dirtyExpirer = new DirtyExpirer(nodeRepository, clock, defaults.dirtyExpiry);
provisionedExpirer = new ProvisionedExpirer(nodeRepository, clock, defaults.provisionedExpiry);
nodeRebooter = new NodeRebooter(nodeRepository, clock, flagSource);
metricsReporter = new MetricsReporter(nodeRepository, metric, orchestrator, serviceMonitor, periodicApplicationMaintainer::pendingDeployments, defaults.metricsInterval, clock);
infrastructureProvisioner = new InfrastructureProvisioner(nodeRepository, infraDeployer, defaults.infrastructureProvisionInterval);
loadBalancerExpirer = provisionServiceProvider.getLoadBalancerService().map(lbService ->
new LoadBalancerExpirer(nodeRepository, defaults.loadBalancerExpirerInterval, lbService));
dynamicProvisioningMaintainer = provisionServiceProvider.getHostProvisioner().map(hostProvisioner ->
new DynamicProvisioningMaintainer(nodeRepository, defaults.dynamicProvisionerInterval, hostProvisioner, flagSource));
capacityReportMaintainer = new CapacityReportMaintainer(nodeRepository, metric, defaults.capacityReportInterval);
osUpgradeActivator = new OsUpgradeActivator(nodeRepository, defaults.osUpgradeActivatorInterval);
rebalancer = new Rebalancer(deployer, nodeRepository, provisionServiceProvider.getHostProvisioner(), metric, clock, defaults.rebalancerInterval);
nodeMetricsDbMaintainer = new NodeMetricsDbMaintainer(nodeRepository, nodeMetrics, nodeMetricsDb, defaults.nodeMetricsCollectionInterval);
autoscalingMaintainer = new AutoscalingMaintainer(nodeRepository, nodeMetricsDb, deployer, metric, defaults.autoscalingInterval);
scalingSuggestionsMaintainer = new ScalingSuggestionsMaintainer(nodeRepository, nodeMetricsDb, defaults.scalingSuggestionsInterval);
// The DuperModel is filled with infrastructure applications by the infrastructure provisioner, so explicitly run that now
infrastructureProvisioner.maintainButThrowOnException();
}
@Override
public void deconstruct() {
nodeFailer.close();
periodicApplicationMaintainer.close();
operatorChangeApplicationMaintainer.close();
reservationExpirer.close();
inactiveExpirer.close();
retiredExpirer.close();
failedExpirer.close();
dirtyExpirer.close();
nodeRebooter.close();
capacityReportMaintainer.close();
provisionedExpirer.close();
metricsReporter.close();
infrastructureProvisioner.close();
loadBalancerExpirer.ifPresent(NodeRepositoryMaintainer::close);
dynamicProvisioningMaintainer.ifPresent(NodeRepositoryMaintainer::close);
osUpgradeActivator.close();
rebalancer.close();
nodeMetricsDbMaintainer.close();
autoscalingMaintainer.close();
scalingSuggestionsMaintainer.close();
}
private static Optional<NodeFailer.ThrottlePolicy> throttlePolicyFromEnv() {
String policyName = System.getenv(envPrefix + "throttle_policy");
try {
return Optional.ofNullable(policyName).map(NodeFailer.ThrottlePolicy::valueOf);
} catch (IllegalArgumentException e) {
log.info(String.format("Ignoring invalid throttle policy name: '%s'. Must be one of %s", policyName,
Arrays.toString(NodeFailer.ThrottlePolicy.values())));
return Optional.empty();
}
}
private static class DefaultTimes {
// TODO: Rename, kept now for compatibility reasons, want to change this and corresponding env variable
/** Minimum time to wait between deployments by periodic application maintainer*/
private final Duration periodicRedeployInterval;
/** Time between each run of maintainer that does periodic redeployment */
private final Duration redeployMaintainerInterval;
/** Applications are redeployed after manual operator changes within this time period */
private final Duration operatorChangeRedeployInterval;
/** The time a node must be continuously nonresponsive before it is failed */
private final Duration failGrace;
private final Duration reservationExpiry;
private final Duration inactiveExpiry;
private final Duration retiredExpiry;
private final Duration failedExpirerInterval;
private final Duration dirtyExpiry;
private final Duration provisionedExpiry;
private final Duration capacityReportInterval;
private final Duration metricsInterval;
private final Duration retiredInterval;
private final Duration infrastructureProvisionInterval;
private final Duration loadBalancerExpirerInterval;
private final Duration dynamicProvisionerInterval;
private final Duration osUpgradeActivatorInterval;
private final Duration rebalancerInterval;
private final Duration nodeMetricsCollectionInterval;
private final Duration autoscalingInterval;
private final Duration scalingSuggestionsInterval;
private final NodeFailer.ThrottlePolicy throttlePolicy;
DefaultTimes(Zone zone) {
failGrace = Duration.ofMinutes(30);
periodicRedeployInterval = Duration.ofMinutes(30);
// Don't redeploy in test environments
redeployMaintainerInterval = Duration.ofMinutes(1);
operatorChangeRedeployInterval = Duration.ofMinutes(1);
failedExpirerInterval = Duration.ofMinutes(10);
provisionedExpiry = Duration.ofHours(4);
capacityReportInterval = Duration.ofMinutes(10);
metricsInterval = Duration.ofMinutes(1);
infrastructureProvisionInterval = Duration.ofMinutes(1);
throttlePolicy = NodeFailer.ThrottlePolicy.hosted;
loadBalancerExpirerInterval = Duration.ofMinutes(5);
reservationExpiry = Duration.ofMinutes(15); // Need to be long enough for deployment to be finished for all config model versions
dynamicProvisionerInterval = Duration.ofMinutes(5);
osUpgradeActivatorInterval = zone.system().isCd() ? Duration.ofSeconds(30) : Duration.ofMinutes(5);
rebalancerInterval = Duration.ofMinutes(40);
nodeMetricsCollectionInterval = Duration.ofMinutes(1);
autoscalingInterval = Duration.ofMinutes(5);
scalingSuggestionsInterval = Duration.ofMinutes(31);
if (zone.environment().equals(Environment.prod) && ! zone.system().isCd()) {
inactiveExpiry = Duration.ofHours(4); // enough time for the application owner to discover and redeploy
retiredInterval = Duration.ofMinutes(10);
dirtyExpiry = Duration.ofHours(2); // enough time to clean the node
retiredExpiry = Duration.ofDays(4); // give up migrating data after 4 days
} else {
inactiveExpiry = Duration.ofSeconds(2); // support interactive wipe start over
retiredInterval = Duration.ofMinutes(1);
dirtyExpiry = Duration.ofMinutes(30);
retiredExpiry = Duration.ofMinutes(20);
}
}
}
}
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