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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one or more |
| 3 | + * contributor license agreements. See the NOTICE file distributed with |
| 4 | + * this work for additional information regarding copyright ownership. |
| 5 | + * The ASF licenses this file to You under the Apache License, Version 2.0 |
| 6 | + * (the "License"); you may not use this file except in compliance with |
| 7 | + * the License. You may obtain a copy of the License at |
| 8 | + * |
| 9 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | + * |
| 11 | + * Unless required by applicable law or agreed to in writing, software |
| 12 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | + * See the License for the specific language governing permissions and |
| 15 | + * limitations under the License. |
| 16 | + */ |
| 17 | +package org.apache.solr.cloud; |
| 18 | + |
| 19 | +import java.io.IOException; |
| 20 | +import java.lang.invoke.MethodHandles; |
| 21 | +import java.nio.file.Path; |
| 22 | +import java.nio.file.Paths; |
| 23 | +import java.util.LinkedHashMap; |
| 24 | +import java.util.Map; |
| 25 | +import java.util.concurrent.CountDownLatch; |
| 26 | +import java.util.concurrent.TimeUnit; |
| 27 | +import java.util.concurrent.atomic.AtomicInteger; |
| 28 | +import org.apache.lucene.util.TestUtil; |
| 29 | +import org.apache.solr.client.solrj.impl.CloudSolrClient; |
| 30 | +import org.apache.solr.client.solrj.request.CollectionAdminRequest; |
| 31 | +import org.apache.solr.common.cloud.ZkStateReader; |
| 32 | +import org.apache.solr.request.SolrQueryRequest; |
| 33 | +import org.apache.solr.response.SolrQueryResponse; |
| 34 | +import org.apache.solr.update.CommitUpdateCommand; |
| 35 | +import org.apache.solr.update.processor.UpdateRequestProcessor; |
| 36 | +import org.apache.solr.update.processor.UpdateRequestProcessorFactory; |
| 37 | +import org.junit.AfterClass; |
| 38 | +import org.junit.BeforeClass; |
| 39 | +import org.junit.Test; |
| 40 | + |
| 41 | +public class ParallelCommitExecutionTest extends SolrCloudTestCase { |
| 42 | + |
| 43 | + private static final String DEBUG_LABEL = MethodHandles.lookup().lookupClass().getName(); |
| 44 | + private static final String COLLECTION_NAME = DEBUG_LABEL + "_collection"; |
| 45 | + |
| 46 | + /** A basic client for operations at the cloud level, default collection will be set */ |
| 47 | + private static CloudSolrClient CLOUD_CLIENT; |
| 48 | + |
| 49 | + private static int expectCount; |
| 50 | + |
| 51 | + private static volatile CountDownLatch countdown; |
| 52 | + private static final AtomicInteger countup = new AtomicInteger(); |
| 53 | + |
| 54 | + @BeforeClass |
| 55 | + public static void beforeClass() throws Exception { |
| 56 | + // multi replicas matters; for the initial parallel commit execution tests, only consider |
| 57 | + // repFactor=1 |
| 58 | + final int repFactor = 1; // random().nextBoolean() ? 1 : 2; |
| 59 | + final int numShards = TestUtil.nextInt(random(), 1, 4); |
| 60 | + final int numNodes = (numShards * repFactor); |
| 61 | + expectCount = numNodes; |
| 62 | + |
| 63 | + final String configName = DEBUG_LABEL + "_config-set"; |
| 64 | + final Path configDir = Paths.get(TEST_HOME(), "collection1", "conf"); |
| 65 | + |
| 66 | + configureCluster(numNodes).addConfig(configName, configDir).configure(); |
| 67 | + |
| 68 | + Map<String, String> collectionProperties = new LinkedHashMap<>(); |
| 69 | + collectionProperties.put("config", "solrconfig-parallel-commit.xml"); |
| 70 | + collectionProperties.put("schema", "schema_latest.xml"); |
| 71 | + CollectionAdminRequest.createCollection(COLLECTION_NAME, configName, numShards, repFactor) |
| 72 | + .setPerReplicaState(SolrCloudTestCase.USE_PER_REPLICA_STATE) |
| 73 | + .setProperties(collectionProperties) |
| 74 | + .process(cluster.getSolrClient()); |
| 75 | + |
| 76 | + CLOUD_CLIENT = cluster.getSolrClient(); |
| 77 | + CLOUD_CLIENT.setDefaultCollection(COLLECTION_NAME); |
| 78 | + waitForRecoveriesToFinish(CLOUD_CLIENT); |
| 79 | + } |
| 80 | + |
| 81 | + @AfterClass |
| 82 | + private static void afterClass() throws Exception { |
| 83 | + if (null != CLOUD_CLIENT) { |
| 84 | + CLOUD_CLIENT.close(); |
| 85 | + CLOUD_CLIENT = null; |
| 86 | + } |
| 87 | + } |
| 88 | + |
| 89 | + private static void initSyncVars() { |
| 90 | + final int ct; |
| 91 | + ct = expectCount; |
| 92 | + countdown = new CountDownLatch(ct); |
| 93 | + countup.set(0); |
| 94 | + } |
| 95 | + |
| 96 | + @Test |
| 97 | + public void testParallelOk() throws Exception { |
| 98 | + initSyncVars(); |
| 99 | + CLOUD_CLIENT.commit(true, true); |
| 100 | + assertEquals(0, countdown.getCount()); |
| 101 | + assertEquals(expectCount, countup.get()); |
| 102 | + } |
| 103 | + |
| 104 | + public static void waitForRecoveriesToFinish(CloudSolrClient client) throws Exception { |
| 105 | + assert null != client.getDefaultCollection(); |
| 106 | + AbstractDistribZkTestBase.waitForRecoveriesToFinish( |
| 107 | + client.getDefaultCollection(), ZkStateReader.from(client), true, true, 330); |
| 108 | + } |
| 109 | + |
| 110 | + public static class CheckFactory extends UpdateRequestProcessorFactory { |
| 111 | + @Override |
| 112 | + public UpdateRequestProcessor getInstance( |
| 113 | + SolrQueryRequest req, SolrQueryResponse rsp, UpdateRequestProcessor next) { |
| 114 | + return new Check(next); |
| 115 | + } |
| 116 | + } |
| 117 | + |
| 118 | + public static class Check extends UpdateRequestProcessor { |
| 119 | + |
| 120 | + public Check(UpdateRequestProcessor next) { |
| 121 | + super(next); |
| 122 | + } |
| 123 | + |
| 124 | + @Override |
| 125 | + public void processCommit(CommitUpdateCommand cmd) throws IOException { |
| 126 | + super.processCommit(cmd); |
| 127 | + countdown.countDown(); |
| 128 | + try { |
| 129 | + // NOTE: this ensures that all commits are executed in parallel; no commit can complete |
| 130 | + // successfully until all commits have entered the `processCommit(...)` method. |
| 131 | + if (!countdown.await(5, TimeUnit.SECONDS)) { |
| 132 | + throw new RuntimeException("done waiting"); |
| 133 | + } |
| 134 | + countup.incrementAndGet(); |
| 135 | + } catch (InterruptedException ex) { |
| 136 | + throw new RuntimeException(ex); |
| 137 | + } |
| 138 | + } |
| 139 | + } |
| 140 | +} |
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