solr/core/src/test/org/apache/solr/cloud/api/collections/CreateCollectionsIndexAndRestartTest.java

/*
 * 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.
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package org.apache.solr.cloud.api.collections;

import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.LuceneTestCase.Slow;
import org.apache.solr.SolrTestUtil;
import org.apache.solr.client.solrj.embedded.JettySolrRunner;
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
import org.apache.solr.cloud.SolrCloudTestCase;
import org.apache.solr.cloud.StoppableIndexingThread;
import org.apache.solr.common.ParWork;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

@Slow
@LuceneTestCase.Nightly
@Ignore // tmp using too large for test ram
public class CreateCollectionsIndexAndRestartTest extends SolrCloudTestCase {
  private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

  @BeforeClass
  public static void beforeCreateCollectionsIndexAndRestartTest() throws Exception {
    useFactory(null);
    configureCluster(5)
        .addConfig("conf", SolrTestUtil.configset("cloud-minimal"))
        .configure();
  }

  @AfterClass
  public static void afterCreateCollectionsIndexAndRestartTest() throws Exception {
    shutdownCluster();
  }

  @Test
  public void start() throws Exception {
    int collectionCnt = 80;
    List<Future> futures = new ArrayList<>();
    List<Future> indexFutures = new ArrayList<>();
    for (int i = 0; i < collectionCnt; i ++) {
      final String collectionName = "testCollection" + i;
      Future<?> future = ParWork.getRootSharedExecutor().submit(() -> {
        try {
          log.info("Create Collection {}", collectionName);
          CollectionAdminRequest.createCollection(collectionName, "conf", 4, 4).setMaxShardsPerNode(100).process(cluster.getSolrClient());
          StoppableIndexingThread indexThread;
          for (int j = 0; j < 2; j++) {
            indexThread = new StoppableIndexingThread(null, cluster.getSolrClient(), Integer.toString(j), false, 5, 10, false);
            indexThread.setCollection(collectionName);
            indexFutures.add(ParWork.getRootSharedExecutor().submit(indexThread));
          }

        } catch (Exception e) {
          log.error("", e);
        }
      });
      futures.add(future);

    }

    for (Future future : futures) {
      future.get(120, TimeUnit.SECONDS);
    }

    for (Future future : indexFutures) {
      if (future != null) {
        future.get(120, TimeUnit.SECONDS);
      }
    }


    for (int i = 0; i < collectionCnt; i ++) {
      final String collectionName = "testCollection" + i;
      cluster.waitForActiveCollection(collectionName, 4, 16);
    }

    List<JettySolrRunner> stoppedRunners = new ArrayList<>();
    for (JettySolrRunner runner : cluster.getJettySolrRunners()) {
      log.info("Stopping {}", runner);
      if (random().nextBoolean()) {
        continue;
      }
      runner.stop();
      stoppedRunners.add(runner);
    }

    for (JettySolrRunner runner : stoppedRunners) {
      log.info("Starting {}", runner);
      runner.start();
    }

    Thread.sleep(5000);
    for (int r = 0; r < 2; r++) {
      for (int i = 0; i < collectionCnt; i++) {
        final String collectionName = "testCollection" + i;
        cluster.waitForActiveCollection(collectionName, 4, 16);
      }
    }
  }

}