| /* |
| * 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.cloud; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.solr.client.solrj.SolrQuery; |
| import org.apache.solr.client.solrj.SolrServerException; |
| import org.apache.solr.client.solrj.embedded.JettySolrRunner; |
| import org.apache.solr.client.solrj.impl.CloudSolrClient; |
| import org.apache.solr.client.solrj.impl.HttpSolrClient; |
| import org.apache.solr.client.solrj.request.CollectionAdminRequest; |
| import org.apache.solr.client.solrj.response.QueryResponse; |
| import org.apache.solr.common.SolrInputDocument; |
| import org.apache.solr.common.cloud.DocCollection; |
| import org.apache.solr.common.cloud.Replica; |
| import org.apache.solr.common.cloud.Slice; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| /** |
| * See SOLR-9504 |
| */ |
| public class TestLeaderElectionWithEmptyReplica extends SolrCloudTestCase { |
| private static final String COLLECTION_NAME = "solr_9504"; |
| |
| @BeforeClass |
| public static void beforeClass() throws Exception { |
| useFactory(null); |
| configureCluster(2) |
| .addConfig("config", TEST_PATH().resolve("configsets").resolve("cloud-minimal").resolve("conf")) |
| .configure(); |
| |
| CollectionAdminRequest.createCollection(COLLECTION_NAME, "config", 1, 1) |
| .processAndWait(cluster.getSolrClient(), DEFAULT_TIMEOUT); |
| |
| cluster.waitForActiveCollection(COLLECTION_NAME, 1, 1); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| CloudSolrClient solrClient = cluster.getSolrClient(); |
| solrClient.setDefaultCollection(COLLECTION_NAME); |
| for (int i=0; i<10; i++) { |
| SolrInputDocument doc = new SolrInputDocument(); |
| doc.addField("id", String.valueOf(i)); |
| solrClient.add(doc); |
| } |
| solrClient.commit(); |
| |
| // find the leader node |
| Replica replica = solrClient.getZkStateReader().getLeaderRetry(COLLECTION_NAME, "shard1"); |
| JettySolrRunner replicaJetty = null; |
| List<JettySolrRunner> jettySolrRunners = cluster.getJettySolrRunners(); |
| for (JettySolrRunner jettySolrRunner : jettySolrRunners) { |
| int port = jettySolrRunner.getBaseUrl().getPort(); |
| if (replica.getBaseUrl().contains(":" + port)) { |
| replicaJetty = jettySolrRunner; |
| break; |
| } |
| } |
| |
| // kill the leader |
| replicaJetty.stop(); |
| |
| // add a replica (asynchronously) |
| CollectionAdminRequest.AddReplica addReplica = CollectionAdminRequest.addReplicaToShard(COLLECTION_NAME, "shard1"); |
| String asyncId = addReplica.processAsync(solrClient); |
| |
| // wait a bit |
| Thread.sleep(1000); |
| |
| // bring the old leader node back up |
| replicaJetty.start(); |
| |
| // wait until everyone is active |
| solrClient.waitForState(COLLECTION_NAME, DEFAULT_TIMEOUT, TimeUnit.SECONDS, |
| (n, c) -> DocCollection.isFullyActive(n, c, 1, 2)); |
| |
| // now query each replica and check for consistency |
| assertConsistentReplicas(solrClient, solrClient.getZkStateReader().getClusterState().getCollection(COLLECTION_NAME).getSlice("shard1")); |
| |
| // sanity check that documents still exist |
| QueryResponse response = solrClient.query(new SolrQuery("*:*")); |
| assertEquals("Indexed documents not found", 10, response.getResults().getNumFound()); |
| } |
| |
| private static int assertConsistentReplicas(CloudSolrClient cloudClient, Slice shard) throws SolrServerException, IOException { |
| long numFound = Long.MIN_VALUE; |
| int count = 0; |
| for (Replica replica : shard.getReplicas()) { |
| HttpSolrClient client = new HttpSolrClient.Builder(replica.getCoreUrl()) |
| .withHttpClient(cloudClient.getLbClient().getHttpClient()).build(); |
| QueryResponse response = client.query(new SolrQuery("q", "*:*", "distrib", "false")); |
| // log.info("Found numFound={} on replica: {}", response.getResults().getNumFound(), replica.getCoreUrl()); |
| if (numFound == Long.MIN_VALUE) { |
| numFound = response.getResults().getNumFound(); |
| } else { |
| assertEquals("Shard " + shard.getName() + " replicas do not have same number of documents", numFound, response.getResults().getNumFound()); |
| } |
| count++; |
| } |
| return count; |
| } |
| } |