| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * 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, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.solr.prometheus.scraper; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.ExecutorService; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| |
| import com.google.common.cache.Cache; |
| import com.google.common.cache.CacheBuilder; |
| import org.apache.solr.client.solrj.impl.CloudSolrClient; |
| import org.apache.solr.client.solrj.impl.HttpSolrClient; |
| import org.apache.solr.common.cloud.DocCollection; |
| import org.apache.solr.common.cloud.Replica; |
| import org.apache.solr.common.util.IOUtils; |
| import org.apache.solr.common.util.Pair; |
| import org.apache.solr.prometheus.collector.MetricSamples; |
| import org.apache.solr.prometheus.exporter.MetricsQuery; |
| import org.apache.solr.prometheus.exporter.SolrClientFactory; |
| |
| public class SolrCloudScraper extends SolrScraper { |
| |
| private final CloudSolrClient solrClient; |
| private final SolrClientFactory solrClientFactory; |
| |
| private Cache<String, HttpSolrClient> hostClientCache = CacheBuilder.newBuilder().build(); |
| |
| public SolrCloudScraper(CloudSolrClient solrClient, ExecutorService executor, SolrClientFactory solrClientFactory) { |
| super(executor); |
| this.solrClient = solrClient; |
| this.solrClientFactory = solrClientFactory; |
| } |
| |
| @Override |
| public Map<String, MetricSamples> pingAllCores(MetricsQuery query) throws IOException { |
| Map<String, HttpSolrClient> httpSolrClients = createHttpSolrClients(); |
| |
| Map<String, DocCollection> collectionState = solrClient.getClusterStateProvider().getClusterState().getCollectionsMap(); |
| |
| List<Replica> replicas = collectionState.values() |
| .stream() |
| .map(DocCollection::getReplicas) |
| .flatMap(List::stream) |
| .collect(Collectors.toList()); |
| |
| List<String> coreNames = replicas |
| .stream() |
| .map(Replica::getCoreName) |
| .collect(Collectors.toList()); |
| |
| Map<String, HttpSolrClient> coreToClient = replicas |
| .stream() |
| .map(replica -> new Pair<>(replica.getCoreName(), httpSolrClients.get(replica.getBaseUrl()))) |
| .collect(Collectors.toMap(Pair::first, Pair::second)); |
| |
| return sendRequestsInParallel(coreNames, core -> { |
| try { |
| return request(coreToClient.get(core), query.withCore(core)); |
| } catch (IOException exception) { |
| throw new RuntimeException(exception); |
| } |
| }); |
| } |
| |
| private Map<String, HttpSolrClient> createHttpSolrClients() throws IOException { |
| return getBaseUrls().stream() |
| .map(url -> { |
| try { |
| return hostClientCache.get(url, () -> solrClientFactory.createStandaloneSolrClient(url)); |
| } catch (ExecutionException e) { |
| throw new RuntimeException(e); |
| } |
| }) |
| .collect(Collectors.toMap(HttpSolrClient::getBaseURL, Function.identity())); |
| |
| } |
| |
| @Override |
| public Map<String, MetricSamples> pingAllCollections(MetricsQuery query) throws IOException { |
| return sendRequestsInParallel(getCollections(), (collection) -> { |
| try { |
| return request(solrClient, query.withCollection(collection)); |
| } catch (IOException exception) { |
| throw new RuntimeException(exception); |
| } |
| }); |
| } |
| |
| @Override |
| public Map<String, MetricSamples> metricsForAllHosts(MetricsQuery query) throws IOException { |
| Map<String, HttpSolrClient> httpSolrClients = createHttpSolrClients(); |
| |
| return sendRequestsInParallel(httpSolrClients.keySet(), (baseUrl) -> { |
| try { |
| return request(httpSolrClients.get(baseUrl), query); |
| } catch (IOException exception) { |
| throw new RuntimeException(exception); |
| } |
| }); |
| } |
| |
| @Override |
| public MetricSamples search(MetricsQuery query) throws IOException { |
| return request(solrClient, query); |
| } |
| |
| @Override |
| public MetricSamples collections(MetricsQuery metricsQuery) throws IOException { |
| return request(solrClient, metricsQuery); |
| } |
| |
| private Set<String> getBaseUrls() throws IOException { |
| return solrClient.getClusterStateProvider().getClusterState().getCollectionsMap().values() |
| .stream() |
| .map(DocCollection::getReplicas) |
| .flatMap(List::stream) |
| .map(Replica::getBaseUrl) |
| .collect(Collectors.toSet()); |
| } |
| |
| private Set<String> getCollections() throws IOException { |
| return solrClient.getClusterStateProvider().getClusterState().getCollectionStates().keySet(); |
| } |
| |
| @Override |
| public void close() { |
| IOUtils.closeQuietly(solrClient); |
| hostClientCache.asMap().values().forEach(IOUtils::closeQuietly); |
| } |
| } |