| /* |
| * 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.lang.invoke.MethodHandles; |
| import java.nio.file.Path; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.solr.SolrTestCaseJ4; |
| import org.apache.solr.common.cloud.SolrZkClient; |
| import org.apache.solr.core.CloudConfig; |
| import org.apache.solr.core.CoreContainer; |
| import org.apache.solr.core.CoreDescriptor; |
| import org.apache.zookeeper.KeeperException; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class TestLeaderElectionZkExpiry extends SolrTestCaseJ4 { |
| |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| public static final String SOLRXML = "<solr></solr>"; |
| private static final int MAX_NODES = 16; |
| private static final int MIN_NODES = 4; |
| |
| @Test |
| public void testLeaderElectionWithZkExpiry() throws Exception { |
| Path zkDir = createTempDir("zkData"); |
| Path ccDir = createTempDir("testLeaderElectionWithZkExpiry-solr"); |
| CoreContainer cc = createCoreContainer(ccDir, SOLRXML); |
| final ZkTestServer server = new ZkTestServer(zkDir); |
| server.setTheTickTime(1000); |
| SolrZkClient zc = null; |
| try { |
| server.run(); |
| |
| CloudConfig cloudConfig = new CloudConfig.CloudConfigBuilder("dummy.host.com", 8984, "solr") |
| .setLeaderConflictResolveWait(180000) |
| .setLeaderVoteWait(180000) |
| .build(); |
| final ZkController zkController = new ZkController(cc, server.getZkAddress(), 15000, cloudConfig, new CurrentCoreDescriptorProvider() { |
| @Override |
| public List<CoreDescriptor> getCurrentDescriptors() { |
| return Collections.EMPTY_LIST; |
| } |
| }); |
| try { |
| Thread killer = new Thread() { |
| @Override |
| public void run() { |
| long timeout = System.nanoTime() + TimeUnit.NANOSECONDS.convert(10, TimeUnit.SECONDS); |
| while (System.nanoTime() < timeout) { |
| long sessionId = zkController.getZkClient().getSolrZooKeeper().getSessionId(); |
| server.expire(sessionId); |
| try { |
| Thread.sleep(10); |
| } catch (InterruptedException e) {} |
| } |
| } |
| }; |
| killer.start(); |
| killer.join(); |
| long timeout = System.nanoTime() + TimeUnit.NANOSECONDS.convert(60, TimeUnit.SECONDS); |
| zc = new SolrZkClient(server.getZkAddress(), LeaderElectionTest.TIMEOUT); |
| boolean found = false; |
| while (System.nanoTime() < timeout) { |
| try { |
| String leaderNode = OverseerCollectionConfigSetProcessor.getLeaderNode(zc); |
| if (leaderNode != null && !leaderNode.trim().isEmpty()) { |
| if (log.isInfoEnabled()) { |
| log.info("Time={} Overseer leader is = {}", System.nanoTime(), leaderNode); |
| } |
| found = true; |
| break; |
| } |
| } catch (KeeperException.NoNodeException nne) { |
| // ignore |
| } |
| } |
| assertTrue(found); |
| } finally { |
| zkController.close(); |
| } |
| } finally { |
| if (zc != null) zc.close(); |
| cc.shutdown(); |
| server.shutdown(); |
| } |
| } |
| } |