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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.deploy.DeployState;
import com.yahoo.config.model.producer.AbstractConfigProducerRoot;
import com.yahoo.config.model.producer.AnyConfigProducer;
import com.yahoo.config.model.producer.TreeConfigProducer;
import com.yahoo.vespa.config.content.FleetcontrollerConfig;
import com.yahoo.vespa.model.VespaModel;
import com.yahoo.vespa.model.builder.xml.dom.ModelElement;
import com.yahoo.vespa.model.builder.xml.dom.VespaDomBuilder;
import com.yahoo.vespa.model.content.cluster.ContentCluster;
import com.yahoo.vespa.model.utils.Duration;
import org.w3c.dom.Element;
import java.util.Optional;
/**
* Config generation for common parameters for all fleet controllers.
*/
public class ClusterControllerConfig extends AnyConfigProducer implements FleetcontrollerConfig.Producer {
public static class Builder extends VespaDomBuilder.DomConfigProducerBuilderBase<ClusterControllerConfig> {
private final String clusterName;
private final ModelElement clusterElement;
private final ResourceLimits resourceLimits;
private final boolean allowMoreThanOneContentGroupDown;
public Builder(String clusterName,
ModelElement clusterElement,
ResourceLimits resourceLimits,
boolean allowMoreThanOneContentGroupDown) {
this.clusterName = clusterName;
this.clusterElement = clusterElement;
this.resourceLimits = resourceLimits;
this.allowMoreThanOneContentGroupDown = allowMoreThanOneContentGroupDown;
}
@Override
protected ClusterControllerConfig doBuild(DeployState deployState, TreeConfigProducer<AnyConfigProducer> ancestor, Element producerSpec) {
ModelElement tuning = clusterElement.child("tuning");
ModelElement clusterControllerTuning = null;
Optional<Double> minNodeRatioPerGroup = Optional.of(deployState.featureFlags().minNodeRatioPerGroup());
Optional<Integer> bucketSplittingMinimumBits = Optional.empty();
if (tuning != null) {
minNodeRatioPerGroup = Optional.ofNullable(tuning.childAsDouble("min-node-ratio-per-group"));
bucketSplittingMinimumBits = Optional.ofNullable(tuning.childAsInteger("bucket-splitting.minimum-bits"));
clusterControllerTuning = tuning.child("cluster-controller");
}
var tuningConfig = new ClusterControllerTuningBuilder(clusterControllerTuning,
minNodeRatioPerGroup,
bucketSplittingMinimumBits)
.build();
if (ancestor instanceof ContentCluster) {
int numberOfLeafGroups = ((ContentCluster) ancestor).getRootGroup().getNumberOfLeafGroups();
if (tuningConfig.maxGroupsAllowedDown().isPresent()) {
Integer maxGroupsAllowedDown = tuningConfig.maxGroupsAllowedDown().get();
if (deployState.zone().environment().isProduction() && (maxGroupsAllowedDown > numberOfLeafGroups))
throw new IllegalArgumentException("Cannot set max-groups-allowed-down (" + maxGroupsAllowedDown +
") larger than number of groups (" + numberOfLeafGroups + ")");
} else {
// Reduce to numberOfLeafGroups for tests or in environments where number of groups are reduced by policy (dev, test, staging, perf)
tuningConfig = tuningConfig.withMaxGroupsAllowedDown(numberOfLeafGroups);
}
} else {
// Reduce to 1 for tests (ancestor is a mock class)
tuningConfig = tuningConfig.withMaxGroupsAllowedDown(1);
}
return new ClusterControllerConfig(ancestor,
clusterName,
tuningConfig,
resourceLimits,
allowMoreThanOneContentGroupDown);
}
}
private final String clusterName;
private final ClusterControllerTuning tuning;
private final ResourceLimits resourceLimits;
private final boolean allowMoreThanOneContentGroupDown;
private ClusterControllerConfig(TreeConfigProducer<?> parent,
String clusterName,
ClusterControllerTuning tuning,
ResourceLimits resourceLimits,
boolean allowMoreThanOneContentGroupDown) {
super(parent, "fleetcontroller");
this.clusterName = clusterName;
this.tuning = tuning;
this.resourceLimits = resourceLimits;
this.allowMoreThanOneContentGroupDown = allowMoreThanOneContentGroupDown;
}
@Override
public void getConfig(FleetcontrollerConfig.Builder builder) {
AbstractConfigProducerRoot root = getRoot();
if (root instanceof VespaModel) {
String zooKeeperAddress = root.getAdmin().getZooKeepersConfigProvider().getZooKeepersConnectionSpec();
builder.zookeeper_server(zooKeeperAddress);
} else {
builder.zookeeper_server("");
}
builder.index(0);
builder.cluster_name(clusterName);
builder.fleet_controller_count(getChildren().size());
tuning.initProgressTime.ifPresent(i -> builder.init_progress_time((int) i.getMilliSeconds()));
tuning.transitionTime.ifPresent(t -> builder.storage_transition_time((int) t.getMilliSeconds()));
tuning.maxPrematureCrashes.ifPresent(var -> builder.max_premature_crashes(var.intValue()));
tuning.stableStateTimePeriod.ifPresent(var -> builder.stable_state_time_period((int) var.getMilliSeconds()));
tuning.minDistributorUpRatio.ifPresent(builder::min_distributor_up_ratio);
tuning.minStorageUpRatio.ifPresent(builder::min_storage_up_ratio);
tuning.minSplitBits.ifPresent(builder::ideal_distribution_bits);
tuning.minNodeRatioPerGroup.ifPresent(builder::min_node_ratio_per_group);
tuning.maxGroupsAllowedDown.ifPresent(max -> builder.max_number_of_groups_allowed_to_be_down(allowMoreThanOneContentGroupDown ? max : -1));
resourceLimits.getConfig(builder);
}
public ClusterControllerTuning tuning() {return tuning;}
private static class ClusterControllerTuningBuilder {
private final Optional<Double> minNodeRatioPerGroup;
private final Optional<Duration> initProgressTime;
private final Optional<Duration> transitionTime;
private final Optional<Long> maxPrematureCrashes;
private final Optional<Duration> stableStateTimePeriod;
private final Optional<Double> minDistributorUpRatio;
private final Optional<Double> minStorageUpRatio;
private final Optional<Integer> minSplitBits;
final Optional<Integer> maxGroupsAllowedDown;
ClusterControllerTuningBuilder(ModelElement tuning,
Optional<Double> minNodeRatioPerGroup,
Optional<Integer> bucketSplittingMinimumBits) {
this.minSplitBits = bucketSplittingMinimumBits;
this.minNodeRatioPerGroup = minNodeRatioPerGroup;
if (tuning == null) {
this.initProgressTime = Optional.empty();
this.transitionTime = Optional.empty();
this.maxPrematureCrashes = Optional.empty();
this.stableStateTimePeriod = Optional.empty();
this.minDistributorUpRatio = Optional.empty();
this.minStorageUpRatio = Optional.empty();
this.maxGroupsAllowedDown = Optional.empty();
} else {
this.initProgressTime = Optional.ofNullable(tuning.childAsDuration("init-progress-time"));
this.transitionTime = Optional.ofNullable(tuning.childAsDuration("transition-time"));
this.maxPrematureCrashes = Optional.ofNullable(tuning.childAsLong("max-premature-crashes"));
this.stableStateTimePeriod = Optional.ofNullable(tuning.childAsDuration("stable-state-period"));
this.minDistributorUpRatio = Optional.ofNullable(tuning.childAsDouble("min-distributor-up-ratio"));
this.minStorageUpRatio = Optional.ofNullable(tuning.childAsDouble("min-storage-up-ratio"));
this.maxGroupsAllowedDown = Optional.ofNullable(tuning.childAsInteger("max-groups-allowed-down"));
}
}
private ClusterControllerTuning build() {
return new ClusterControllerTuning(initProgressTime,
transitionTime,
maxPrematureCrashes,
stableStateTimePeriod,
minDistributorUpRatio,
minStorageUpRatio,
maxGroupsAllowedDown,
minNodeRatioPerGroup,
minSplitBits);
}
}
private record ClusterControllerTuning(Optional<Duration> initProgressTime,
Optional<Duration> transitionTime,
Optional<Long> maxPrematureCrashes,
Optional<Duration> stableStateTimePeriod,
Optional<Double> minDistributorUpRatio,
Optional<Double> minStorageUpRatio,
Optional<Integer> maxGroupsAllowedDown,
Optional<Double> minNodeRatioPerGroup,
Optional<Integer> minSplitBits) {
public ClusterControllerTuning withMaxGroupsAllowedDown(int maxGroupsAllowedDown) {
return new ClusterControllerConfig.ClusterControllerTuning(
initProgressTime,
transitionTime,
maxPrematureCrashes,
stableStateTimePeriod,
minDistributorUpRatio,
minStorageUpRatio,
Optional.of(maxGroupsAllowedDown),
minNodeRatioPerGroup,
minSplitBits);
}
}
}
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