com.yahoo.vespa.hosted.provision.maintenance.InactiveExpirer Maven / Gradle / Ivy

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Keeps track of node assignment in a multi-application setup.

There is a newer version: 8.498.26

// Copyright Yahoo. 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.config.provision.NodeType;
import com.yahoo.jdisc.Metric;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.NodeRepository;
import com.yahoo.vespa.hosted.provision.node.Agent;
import com.yahoo.vespa.hosted.provision.node.History;
import com.yahoo.vespa.hosted.provision.node.Status;

import java.time.Duration;
import java.util.List;
import java.util.Map;

/**
 * Maintenance job which moves inactive nodes to dirty or parked after timeout.
 *
 * The timeout is in place to provide a grace period in which nodes can be brought back to active
 * if they were deactivated in error. As inactive nodes retain their state
 * they can be brought back to active and correct state faster than a new node.
 *
 * Nodes with following flags set are not reusable and will be moved to parked
 * instead of dirty:
 *
 * - {@link Status#wantToRetire()} (when set by an operator)
 * - {@link Status#wantToDeprovision()}
 *
 * @author bratseth
 * @author mpolden
 */
public class InactiveExpirer extends Expirer {

    private final NodeRepository nodeRepository;
    private final Duration defaultTimeout;
    private final Map inactiveTimeouts;

    InactiveExpirer(NodeRepository nodeRepository, Duration defaultTimeout, Map inactiveTimeouts,
                    Metric metric) {
        super(Node.State.inactive, History.Event.Type.deactivated, nodeRepository, defaultTimeout, metric);
        this.nodeRepository = nodeRepository;
        this.defaultTimeout = defaultTimeout;
        this.inactiveTimeouts = Map.copyOf(inactiveTimeouts);
    }

    @Override
    protected void expire(List expired) {
        expired.forEach(node -> {
            nodeRepository.nodes().deallocate(node, Agent.InactiveExpirer, "Expired by InactiveExpirer");
        });
    }

    @Override
    protected boolean isExpired(Node node) {
        return super.isExpired(node, timeout(node)) ||
               node.allocation().get().owner().instance().isTester();
    }

    private Duration timeout(Node node) {
        return inactiveTimeouts.getOrDefault(node.type(), defaultTimeout);
    }

}