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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.content;
import com.yahoo.config.model.api.ModelContext;
import com.yahoo.config.model.deploy.DeployState;
import com.yahoo.vespa.config.content.core.StorDistributormanagerConfig;
import com.yahoo.vespa.config.content.core.StorServerConfig;
import com.yahoo.config.model.producer.AnyConfigProducer;
import com.yahoo.config.model.producer.TreeConfigProducer;
import com.yahoo.vespa.model.builder.xml.dom.ModelElement;
import com.yahoo.vespa.model.builder.xml.dom.VespaDomBuilder;
import com.yahoo.vespa.model.content.engines.PersistenceEngine;
import org.w3c.dom.Element;
import java.util.Optional;
/**
* Represents specific configuration for a given distributor node.
*/
public class Distributor extends ContentNode implements StorDistributormanagerConfig.Producer {
PersistenceEngine provider;
public static class Builder extends VespaDomBuilder.DomConfigProducerBuilder<Distributor, Distributor> {
ModelElement clusterXml;
PersistenceEngine persistenceProvider;
public Builder(ModelElement clusterXml, PersistenceEngine persistenceProvider) {
this.clusterXml = clusterXml;
this.persistenceProvider = persistenceProvider;
}
@Override
protected Distributor doBuild(DeployState deployState, TreeConfigProducer<Distributor> ancestor, Element producerSpec) {
return new Distributor(deployState.getProperties(), (DistributorCluster)ancestor, new ModelElement(producerSpec).integerAttribute("distribution-key"),
clusterXml.integerAttribute("distributor-base-port"), persistenceProvider);
}
}
Distributor(ModelContext.Properties properties, DistributorCluster parent, int distributionKey, Integer distributorBasePort, PersistenceEngine provider) {
super(properties.featureFlags(), parent, parent.getClusterName(),
StorageNode.rootFolder + parent.getClusterName() + "/distributor/" + distributionKey, distributionKey);
this.provider = provider;
if (distributorBasePort != null) {
setBasePort(distributorBasePort);
}
}
private int tuneNumDistributorStripes() {
if (getHostResource() != null &&
!getHostResource().realResources().isUnspecified()) {
int cores = (int)getHostResource().realResources().vcpu();
// This should match the calculation used when node flavor is not available:
// storage/src/vespa/storage/common/bucket_stripe_utils.cpp
if (cores <= 16) {
return 1;
} else if (cores <= 64) {
return 2;
} else {
return 4;
}
} else {
return 0;
}
}
@Override
public void getConfig(StorServerConfig.Builder builder) {
super.getConfig(builder);
provider.getConfig(builder);
}
@Override
public void getConfig(StorDistributormanagerConfig.Builder builder) {
builder.num_distributor_stripes(tuneNumDistributorStripes());
}
@Override
public Optional<String> getStartupCommand() {
return Optional.of("exec sbin/vespa-distributord -c $VESPA_CONFIG_ID");
}
}
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