| /* |
| * 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.Locale; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.lucene.util.LuceneTestCase; |
| import org.apache.solr.SolrTestUtil; |
| import org.apache.solr.client.solrj.SolrClient; |
| import org.apache.solr.client.solrj.SolrServerException; |
| import org.apache.solr.client.solrj.impl.HttpSolrClient; |
| import org.apache.solr.client.solrj.request.CollectionAdminRequest; |
| import org.apache.solr.client.solrj.request.CoreAdminRequest; |
| import org.apache.solr.common.cloud.ClusterState; |
| import org.apache.solr.common.cloud.Replica; |
| import org.apache.solr.common.cloud.SolrZkClient; |
| import org.apache.solr.common.cloud.ZkStateReader; |
| import org.apache.zookeeper.KeeperException; |
| import org.hamcrest.CoreMatchers; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| @LuceneTestCase.AwaitsFix(bugUrl = "This test relies on replica name assignment logic that it should not") |
| public class LeaderElectionContextKeyTest extends SolrCloudTestCase { |
| |
| private static final String TEST_COLLECTION_1 = "testCollection1"; |
| private static final String TEST_COLLECTION_2 = "testCollection2"; |
| |
| @BeforeClass |
| public static void setupCluster() throws Exception { |
| configureCluster(1) |
| .addConfig("config", SolrTestUtil.TEST_PATH().resolve("configsets").resolve("cloud-minimal").resolve("conf")) |
| .configure(); |
| |
| for (int i = 1; i <= 2; i++) { |
| // Create two collections with same order of requests, no parallel |
| // therefore Assign.buildCoreNodeName will create same coreNodeName |
| CollectionAdminRequest |
| .createCollection("testCollection"+i, "config", 2, 1) |
| .setMaxShardsPerNode(100) |
| .setCreateNodeSet("") |
| .process(cluster.getSolrClient()); |
| CollectionAdminRequest |
| .addReplicaToShard("testCollection"+i, "s1") |
| .process(cluster.getSolrClient()); |
| CollectionAdminRequest |
| .addReplicaToShard("testCollection"+i, "s2") |
| .process(cluster.getSolrClient()); |
| } |
| } |
| |
| @Test |
| public void test() throws KeeperException, InterruptedException, IOException, SolrServerException { |
| ZkStateReader stateReader = cluster.getSolrClient().getZkStateReader(); |
| |
| ClusterState clusterState = stateReader.getClusterState(); |
| // The test assume that TEST_COLLECTION_1 and TEST_COLLECTION_2 will have identical layout |
| // ( same replica's name on every shard ) |
| for (int i = 1; i <= 2; i++) { |
| String coll1ShardiLeader = clusterState.getCollection(TEST_COLLECTION_1).getLeader("s"+i).getName(); |
| String coll2ShardiLeader = clusterState.getCollection(TEST_COLLECTION_2).getLeader("s"+i).getName(); |
| String assertMss = String.format(Locale.ROOT, "Expect %s and %s each have a replica with same name on shard %s", |
| coll1ShardiLeader, coll2ShardiLeader, "shard"+i); |
| assertEquals( |
| assertMss, |
| coll1ShardiLeader, |
| coll2ShardiLeader |
| ); |
| } |
| |
| String shard = "shard" + String.valueOf(random().nextInt(2) + 1); |
| Replica replica = clusterState.getCollection(TEST_COLLECTION_1).getLeader(shard); |
| assertNotNull(replica); |
| |
| try (SolrClient shardLeaderClient = new HttpSolrClient.Builder(replica.get("base_url").toString()).build()) { |
| assertEquals(1L, getElectionNodes(TEST_COLLECTION_1, shard, stateReader.getZkClient()).size()); |
| List<String> collection2Shard1Nodes = getElectionNodes(TEST_COLLECTION_2, "s1", stateReader.getZkClient()); |
| List<String> collection2Shard2Nodes = getElectionNodes(TEST_COLLECTION_2, "s2", stateReader.getZkClient()); |
| CoreAdminRequest.unloadCore(replica.getName(), shardLeaderClient); |
| // Waiting for leader election being kicked off |
| long timeout = System.nanoTime() + TimeUnit.NANOSECONDS.convert(60, TimeUnit.SECONDS); |
| boolean found = false; |
| while (System.nanoTime() < timeout) { |
| try { |
| found = getElectionNodes(TEST_COLLECTION_1, shard, stateReader.getZkClient()).size() == 0; |
| break; |
| } catch (KeeperException.NoNodeException nne) { |
| // ignore |
| } |
| } |
| assertTrue(found); |
| // There are no leader election was kicked off on testCollection2 |
| assertThat(collection2Shard1Nodes, CoreMatchers.is(getElectionNodes(TEST_COLLECTION_2, "s1", stateReader.getZkClient()))); |
| assertThat(collection2Shard2Nodes, CoreMatchers.is(getElectionNodes(TEST_COLLECTION_2, "s2", stateReader.getZkClient()))); |
| } |
| } |
| |
| private List<String> getElectionNodes(String collection, String shard, SolrZkClient client) throws KeeperException, InterruptedException { |
| return client.getChildren("/collections/"+collection+"/leader_elect/"+shard+LeaderElector.ELECTION_NODE, null, true); |
| } |
| } |