org.apache.solr.cloud.autoscaling.AutoAddReplicasPlanAction Maven / Gradle / Ivy
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* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.solr.cloud.autoscaling;
import java.io.IOException;
import org.apache.solr.client.solrj.cloud.autoscaling.NoneSuggester;
import org.apache.solr.client.solrj.cloud.autoscaling.Policy;
import org.apache.solr.client.solrj.cloud.SolrCloudManager;
import org.apache.solr.client.solrj.cloud.autoscaling.Suggester;
import org.apache.solr.client.solrj.impl.ClusterStateProvider;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.cloud.ClusterState;
import org.apache.solr.common.cloud.DocCollection;
import org.apache.solr.common.cloud.ZkStateReader;
public class AutoAddReplicasPlanAction extends ComputePlanAction {
@Override
protected Suggester getSuggester(Policy.Session session, TriggerEvent event, ActionContext context, SolrCloudManager cloudManager) throws IOException {
// for backward compatibility
ClusterStateProvider stateProvider = cloudManager.getClusterStateProvider();
String autoAddReplicas = stateProvider.getClusterProperty(ZkStateReader.AUTO_ADD_REPLICAS, (String) null);
if (autoAddReplicas != null && autoAddReplicas.equals("false")) {
return NoneSuggester.get(session);
}
Suggester suggester = super.getSuggester(session, event, context, cloudManager);
ClusterState clusterState;
try {
clusterState = stateProvider.getClusterState();
} catch (IOException e) {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "Exception getting cluster state", e);
}
boolean anyCollections = false;
for (DocCollection collection: clusterState.getCollectionsMap().values()) {
if (collection.getAutoAddReplicas()) {
anyCollections = true;
suggester.hint(Suggester.Hint.COLL, collection.getName());
}
}
if (!anyCollections) return NoneSuggester.get(session);
return suggester;
}
}