| /* |
| * 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.geode.internal.cache.tier.sockets; |
| |
| import static org.apache.geode.distributed.ConfigurationProperties.MCAST_PORT; |
| import static org.apache.geode.test.awaitility.GeodeAwaitility.await; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.List; |
| import java.util.Properties; |
| |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import org.apache.geode.cache.CacheFactory; |
| import org.apache.geode.cache.EntryEvent; |
| import org.apache.geode.cache.GemFireCache; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.RegionFactory; |
| import org.apache.geode.cache.RegionShortcut; |
| import org.apache.geode.cache.client.ClientCache; |
| import org.apache.geode.cache.client.ClientCacheFactory; |
| import org.apache.geode.cache.client.ClientRegionShortcut; |
| import org.apache.geode.cache.server.CacheServer; |
| import org.apache.geode.cache.util.CacheWriterAdapter; |
| import org.apache.geode.internal.AvailablePortHelper; |
| import org.apache.geode.internal.cache.GemFireCacheImpl; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.internal.cache.InternalCacheServer; |
| import org.apache.geode.test.dunit.Host; |
| import org.apache.geode.test.dunit.ThreadUtils; |
| import org.apache.geode.test.dunit.VM; |
| import org.apache.geode.test.dunit.internal.JUnit4DistributedTestCase; |
| import org.apache.geode.test.junit.categories.ClientServerTest; |
| |
| /** |
| * Tests for AcceptorImpl. |
| */ |
| @Category({ClientServerTest.class}) |
| public class AcceptorImplDUnitTest extends JUnit4DistributedTestCase { |
| |
| public AcceptorImplDUnitTest() { |
| super(); |
| } |
| |
| // SleepyCacheWriter will block indefinitely. |
| // Anyone who has a handle on the SleepyCacheWriter can interrupt it by calling wakeUp. |
| class SleepyCacheWriter<K, V> extends CacheWriterAdapter<K, V> { |
| private boolean setOnStart; |
| private boolean setOnInterrupt; |
| private boolean stopWaiting; |
| // locks the above three booleans. |
| private final Object lock = new Object(); |
| |
| public void notifyStart() { |
| synchronized (lock) { |
| setOnStart = true; |
| } |
| } |
| |
| public boolean isStarted() { |
| synchronized (lock) { |
| return setOnStart; |
| } |
| } |
| |
| public void notifyInterrupt() { |
| synchronized (lock) { |
| setOnInterrupt = true; |
| } |
| } |
| |
| public boolean isInterrupted() { |
| synchronized (lock) { |
| return setOnInterrupt; |
| } |
| } |
| |
| public void stopWaiting() { |
| synchronized (lock) { |
| this.stopWaiting = true; |
| lock.notify(); |
| } |
| } |
| |
| public boolean isReadyToQuit() { |
| synchronized (lock) { |
| return stopWaiting; |
| } |
| } |
| |
| SleepyCacheWriter() {} |
| |
| @Override |
| public void beforeCreate(EntryEvent<K, V> event) { |
| System.out.println("Sleeping a long time."); |
| notifyStart(); |
| while (!isReadyToQuit()) { |
| try { |
| synchronized (lock) { |
| lock.wait(); |
| } |
| } catch (InterruptedException ex) { |
| notifyInterrupt(); |
| } |
| } |
| if (isInterrupted()) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| } |
| |
| /** |
| * GEODE-2324. There was a bug where, due to an uncaught exception, `AcceptorImpl.close()` was |
| * short-circuiting and failing to clean up properly. |
| * |
| * What this test does is start a Cache and hook the Acceptor to interrupt the thread before the |
| * place where an InterruptedException could be thrown. It interrupts the thread, and checks that |
| * the thread has terminated normally without short-circuiting. It doesn't check that every part |
| * of the AcceptorImpl has shut down properly -- that seems both difficult to check (especially |
| * since the fields are private) and implementation-dependent. |
| */ |
| @Test |
| public void testAcceptorImplCloseCleansUpWithHangingConnection() throws Exception { |
| final String hostname = Host.getHost(0).getHostName(); |
| final VM clientVM = Host.getHost(0).getVM(0); |
| |
| Properties props = new Properties(); |
| props.setProperty(MCAST_PORT, "0"); |
| |
| try (InternalCache cache = (InternalCache) new CacheFactory(props).create()) { |
| RegionFactory<Object, Object> regionFactory = |
| cache.createRegionFactory(RegionShortcut.PARTITION); |
| |
| SleepyCacheWriter<Object, Object> sleepyCacheWriter = new SleepyCacheWriter<>(); |
| regionFactory.setCacheWriter(sleepyCacheWriter); |
| |
| final CacheServer server = cache.addCacheServer(); |
| final int port = AvailablePortHelper.getRandomAvailableTCPPort(); |
| server.setPort(port); |
| server.start(); |
| |
| regionFactory.create("region1"); |
| |
| assertTrue(cache.isServer()); |
| assertFalse(cache.isClosed()); |
| |
| await("Acceptor is up and running") |
| .until(() -> getAcceptorImplFromCache(cache) != null); |
| AcceptorImpl acceptorImpl = getAcceptorImplFromCache(cache); |
| |
| |
| clientVM.invokeAsync(() -> { |
| // System.setProperty("gemfire.PoolImpl.TRY_SERVERS_ONCE", "true"); |
| ClientCacheFactory clientCacheFactory = new ClientCacheFactory(); |
| clientCacheFactory.addPoolServer(hostname, port); |
| clientCacheFactory.setPoolReadTimeout(5000); |
| clientCacheFactory.setPoolRetryAttempts(1); |
| clientCacheFactory.setPoolMaxConnections(1); |
| clientCacheFactory.setPoolFreeConnectionTimeout(1000); |
| clientCacheFactory.setPoolServerConnectionTimeout(1000); |
| ClientCache clientCache = clientCacheFactory.create(); |
| Region<Object, Object> clientRegion1 = |
| clientCache.createClientRegionFactory(ClientRegionShortcut.PROXY).create("region1"); |
| clientRegion1.put("foo", "bar"); |
| }); |
| |
| await("Cache writer starts") |
| .until(sleepyCacheWriter::isStarted); |
| |
| cache.close(); |
| |
| await("Cache writer interrupted") |
| .until(sleepyCacheWriter::isInterrupted); |
| |
| sleepyCacheWriter.stopWaiting(); |
| |
| await("Acceptor shuts down properly") |
| .until(() -> acceptorImpl.isShutdownProperly()); |
| |
| ThreadUtils.dumpMyThreads(); // for debugging. |
| |
| regionFactory.setCacheWriter(null); |
| } |
| } |
| |
| |
| @Test |
| public void testAcceptorImplCloseCleansUp() throws Exception { |
| Properties props = new Properties(); |
| props.setProperty(MCAST_PORT, "0"); |
| |
| try (InternalCache cache = (InternalCache) new CacheFactory(props).create()) { |
| RegionFactory<Object, Object> regionFactory = |
| cache.createRegionFactory(RegionShortcut.PARTITION); |
| |
| final CacheServer server = cache.addCacheServer(); |
| final int port = AvailablePortHelper.getRandomAvailableTCPPort(); |
| server.setPort(port); |
| server.start(); |
| |
| regionFactory.create("region1"); |
| |
| assertTrue(cache.isServer()); |
| assertFalse(cache.isClosed()); |
| await("Acceptor is up and running") |
| .until(() -> getAcceptorImplFromCache(cache) != null); |
| |
| AcceptorImpl acceptorImpl = getAcceptorImplFromCache(cache); |
| |
| cache.close(); |
| await("Acceptor shuts down properly") |
| .until(acceptorImpl::isShutdownProperly); |
| |
| assertTrue(cache.isClosed()); |
| assertFalse(acceptorImpl.isRunning()); |
| } |
| } |
| |
| /** |
| * |
| * @return the cache's Acceptor, if there is exactly one CacheServer. Otherwise null. |
| */ |
| public AcceptorImpl getAcceptorImplFromCache(GemFireCache cache) { |
| GemFireCacheImpl gemFireCache = (GemFireCacheImpl) cache; |
| List<CacheServer> cacheServers = gemFireCache.getCacheServers(); |
| if (cacheServers.size() != 1) { |
| return null; |
| } |
| |
| InternalCacheServer cacheServer = (InternalCacheServer) cacheServers.get(0); |
| return (AcceptorImpl) cacheServer.getAcceptor(); |
| } |
| } |