| /* |
| * 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 org.apache.solr.client.solrj.SolrQuery; |
| import org.apache.solr.client.solrj.embedded.JettySolrRunner; |
| import org.apache.solr.client.solrj.request.CollectionAdminRequest; |
| import org.apache.solr.client.solrj.request.QueryRequest; |
| import org.apache.solr.client.solrj.response.QueryResponse; |
| import org.apache.solr.common.SolrInputDocument; |
| import org.apache.solr.common.cloud.ZkStateReader; |
| import org.apache.zookeeper.KeeperException; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| |
| public class ZkFailoverTest extends SolrCloudTestCase { |
| private ZkTestServer zkTestServer; |
| |
| @BeforeClass |
| public static void setupCluster() throws Exception { |
| useFactory("solr.StandardDirectoryFactory"); |
| configureCluster(2) |
| .addConfig("conf1", TEST_PATH().resolve("configsets").resolve("cloud-dynamic").resolve("conf")) |
| .configure(); |
| } |
| |
| @AfterClass |
| public static void resetWaitForZk(){ |
| System.setProperty("waitForZk", "30"); |
| } |
| |
| public void testRestartZkWhenClusterDown() throws Exception { |
| String coll = "coll1"; |
| CollectionAdminRequest.createCollection(coll, 2, 1).process(cluster.getSolrClient()); |
| cluster.waitForActiveCollection(coll, 2, 2); |
| cluster.getSolrClient().add(coll, new SolrInputDocument("id", "1")); |
| zkTestServer = cluster.getZkServer(); |
| |
| // This attempt will fail since it will timeout after 1 second |
| System.setProperty("waitForZk", "1"); |
| restartSolrAndZk(); |
| waitForLiveNodes(0); |
| |
| // This attempt will succeed since there will be enough time to connect |
| System.setProperty("waitForZk", "20"); |
| restartSolrAndZk(); |
| waitForLiveNodes(2); |
| waitForState("Timeout waiting for " + coll, coll, clusterShape(2, 2)); |
| QueryResponse rsp = new QueryRequest(new SolrQuery("*:*")).process(cluster.getSolrClient(), coll); |
| assertEquals(1, rsp.getResults().getNumFound()); |
| zkTestServer.shutdown(); |
| } |
| |
| private void restartSolrAndZk() |
| throws Exception { |
| for (JettySolrRunner runner : cluster.getJettySolrRunners()) { |
| runner.stop(); |
| } |
| zkTestServer.shutdown(); |
| Thread[] threads = new Thread[cluster.getJettySolrRunners().size()]; |
| for (int i = 0; i < cluster.getJettySolrRunners().size(); i++) { |
| final JettySolrRunner runner = cluster.getJettySolrRunner(i); |
| threads[i] = new Thread(() -> { |
| try { |
| runner.start(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| }); |
| threads[i].start(); |
| } |
| Thread.sleep(2500); |
| zkTestServer = new ZkTestServer(zkTestServer.getZkDir(), zkTestServer.getPort()); |
| zkTestServer.run(false); |
| for (Thread thread : threads) { |
| thread.join(); |
| } |
| } |
| |
| private void waitForLiveNodes(int numNodes) throws InterruptedException, KeeperException { |
| ZkStateReader zkStateReader = cluster.getSolrClient().getZkStateReader(); |
| for (int i = 0; i < 100; i++) { |
| zkStateReader.updateLiveNodes(); |
| if (zkStateReader.getClusterState().getLiveNodes().size() == numNodes) return; |
| Thread.sleep(200); |
| } |
| fail("Timeout waiting for number of live nodes = " + numNodes); |
| } |
| } |