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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.Node.State;
import com.yahoo.vespa.hosted.provision.NodeList;
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;
/**
* This moves nodes from dirty to failed if they have been in dirty too long
* with the assumption that a node is stuck in dirty because it has failed.
* <p>
* As the nodes are moved back to dirty their failure count is increased,
* and if the count is sufficiently low they will be attempted recycled to dirty again.
* The upshot is nodes may get multiple attempts at clearing through dirty, but they will
* eventually stay in failed.
*
* @author bratseth
*/
public class DirtyExpirer extends Expirer {
private final boolean wantToDeprovisionOnExpiry;
DirtyExpirer(NodeRepository nodeRepository, Duration dirtyTimeout, Metric metric) {
super(Node.State.dirty, History.Event.Type.deallocated, nodeRepository, dirtyTimeout, metric);
// Deprovision hosts on expiry if dynamically provisioned
this.wantToDeprovisionOnExpiry = nodeRepository.zone().cloud().dynamicProvisioning();
}
@Override
protected void expire(List<Node> expired) {
nodeRepository().nodes().performOn(NodeList.copyOf(expired),
node -> node.state() == State.dirty && isExpired(node),
(node, lock) -> nodeRepository().nodes().fail(node.hostname(),
wantToDeprovisionOnExpiry,
Agent.DirtyExpirer,
"Node is stuck in dirty"));
}
}
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