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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.clustercontroller.core;
import com.yahoo.jrt.Spec;
import com.yahoo.vdslib.state.Node;
import com.yahoo.vespa.clustercontroller.core.hostinfo.ResourceUsage;
import java.util.Locale;
import java.util.Objects;
/**
* Wrapper that identifies a resource type that has been exhausted on a given node,
* complete with both actual usage and the limit it exceeded.
*/
public class NodeResourceExhaustion {
public final Node node;
public final String resourceType;
public final ResourceUsage resourceUsage;
public final double limit;
public final String rpcAddress;
public NodeResourceExhaustion(Node node, String resourceType,
ResourceUsage resourceUsage, double limit,
String rpcAddress) {
this.node = node;
this.resourceType = resourceType;
this.resourceUsage = resourceUsage;
this.limit = limit;
this.rpcAddress = rpcAddress;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
NodeResourceExhaustion that = (NodeResourceExhaustion) o;
return Double.compare(that.limit, limit) == 0 &&
Objects.equals(node, that.node) &&
Objects.equals(resourceType, that.resourceType) &&
Objects.equals(resourceUsage, that.resourceUsage) &&
Objects.equals(rpcAddress, that.rpcAddress);
}
@Override
public int hashCode() {
return Objects.hash(node, resourceType, resourceUsage, limit, rpcAddress);
}
public String toExhaustionAddedDescription() {
return String.format(Locale.US, "%s is %.1f%% full (the configured limit is %.1f%%)",
makeDescriptionPrefix(), resourceUsage.getUsage() * 100.0, limit * 100.0);
}
public String toExhaustionRemovedDescription() {
return String.format(Locale.US, "%s (<= %.1f%%)", makeDescriptionPrefix(), limit * 100.0);
}
public String toShorthandDescription() {
return String.format(Locale.US, "%s%s %.1f%% > %.1f%%",
resourceType,
(resourceUsage.getName() != null ? ":" + resourceUsage.getName() : ""),
resourceUsage.getUsage() * 100.0, limit * 100.0);
}
private String makeDescriptionPrefix() {
return String.format(Locale.US, "%s%s on node %d [%s]",
resourceType,
(resourceUsage.getName() != null ? ":" + resourceUsage.getName() : ""),
node.getIndex(),
inferHostnameFromRpcAddress(rpcAddress));
}
private static String inferHostnameFromRpcAddress(String rpcAddress) {
if (rpcAddress == null) {
return "unknown hostname";
}
var spec = new Spec(rpcAddress);
if (spec.malformed()) {
return "unknown hostname";
}
return spec.host();
}
}
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