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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.concurrent.maintenance.JobMetrics;
import com.yahoo.concurrent.maintenance.Maintainer;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.NodeType;
import com.yahoo.jdisc.Metric;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.NodeList;
import com.yahoo.vespa.hosted.provision.NodeRepository;
import java.time.Clock;
import java.time.Duration;
import java.util.Map;
/**
* A maintainer is some job which runs at a fixed rate to perform some maintenance task on the node repo.
*
* @author bratseth
*/
public abstract class NodeRepositoryMaintainer extends Maintainer {
private final NodeRepository nodeRepository;
public NodeRepositoryMaintainer(NodeRepository nodeRepository, Duration interval, Metric metric) {
super(null, interval, nodeRepository.clock(), nodeRepository.jobControl(),
new NodeRepositoryJobMetrics(metric), nodeRepository.database().cluster(), true);
this.nodeRepository = nodeRepository;
}
protected static Duration min(Duration a, Duration b) {
return a.toMillis() < b.toMillis() ? a : b;
}
/** Returns the node repository */
protected NodeRepository nodeRepository() { return nodeRepository; }
/** Returns the node repository clock */
protected Clock clock() { return nodeRepository.clock(); }
/** A utility to group active tenant nodes by application */
protected Map<ApplicationId, NodeList> activeNodesByApplication() {
return nodeRepository().nodes()
.list(Node.State.active)
.nodeType(NodeType.tenant)
.not().tester()
.groupingBy(node -> node.allocation().get().owner());
}
private static class NodeRepositoryJobMetrics extends JobMetrics {
private final Metric metric;
public NodeRepositoryJobMetrics(Metric metric) {
this.metric = metric;
}
@Override
public void completed(String job, double successFactor, long duration) {
var context = metric.createContext(Map.of("job", job));
metric.set("maintenance.successFactorDeviation", successFactor, context);
metric.set("maintenance.duration", duration, context);
}
}
}
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