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

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

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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.maintenance;

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

/**
 * Maintenance job which moves reserved nodes to dirty after timeout.
 * Nodes need to time out in case someone reserves nodes (by calling prepare) but never commits.
 * reserved nodes may in some cases come from the inactive state, in which case they are dirty.
 * For this reason, all reserved nodes go through the dirty state before going back to ready.
 *
 * @author bratseth
 */
public class ReservationExpirer extends Expirer {

    public ReservationExpirer(NodeRepository nodeRepository, Duration reservationPeriod, Metric metric) {
        super(Node.State.reserved, History.Event.Type.reserved, nodeRepository, reservationPeriod, metric);
    }

    @Override
    protected void expire(List expired) {
        nodeRepository().nodes().deallocate(expired, Agent.ReservationExpirer, "Expired by ReservationExpirer");
    }

}