| /* |
| * 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.cache.util; |
| |
| import static org.apache.geode.distributed.ConfigurationProperties.MCAST_PORT; |
| import static org.apache.geode.test.awaitility.GeodeAwaitility.await; |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayInputStream; |
| import java.util.Properties; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import org.apache.geode.GemFireConfigException; |
| import org.apache.geode.cache.CacheFactory; |
| import org.apache.geode.cache.util.AutoBalancer.CacheOperationFacade; |
| import org.apache.geode.cache.util.AutoBalancer.GeodeCacheFacade; |
| import org.apache.geode.distributed.DistributedLockService; |
| import org.apache.geode.distributed.internal.InternalDistributedSystem; |
| import org.apache.geode.distributed.internal.locks.DLockService; |
| import org.apache.geode.internal.cache.GemFireCacheImpl; |
| import org.apache.geode.internal.statistics.HostStatSampler; |
| |
| /** |
| * IntegrationTests for AutoBalancer that include usage of Cache, StatSampler and |
| * DistributedLockService. |
| */ |
| public class AutoBalancerIntegrationJUnitTest { |
| |
| private static final int TIMEOUT_SECONDS = 5; |
| |
| private GemFireCacheImpl cache; |
| |
| @Before |
| public void setUpCacheAndDLS() { |
| cache = createBasicCache(); |
| } |
| |
| @After |
| public void destroyCacheAndDLS() { |
| if (DLockService.getServiceNamed(AutoBalancer.AUTO_BALANCER_LOCK_SERVICE_NAME) != null) { |
| DLockService.destroy(AutoBalancer.AUTO_BALANCER_LOCK_SERVICE_NAME); |
| } |
| |
| AutoBalancer autoBalancer = (AutoBalancer) cache.getInitializer(); |
| if (autoBalancer != null) { |
| autoBalancer.destroy(); |
| } |
| |
| if (cache != null && !cache.isClosed()) { |
| try { |
| final HostStatSampler statSampler = |
| ((InternalDistributedSystem) cache.getDistributedSystem()).getStatSampler(); |
| cache.close(); |
| // wait for the stat sampler to stand down |
| await().until(isAlive(statSampler), equalTo(false)); |
| } finally { |
| cache = null; |
| } |
| } |
| } |
| |
| @Test |
| public void testAutoRebalaceStatsOnLockSuccess() throws InterruptedException { |
| assertEquals(0, cache.getInternalResourceManager().getStats().getAutoRebalanceAttempts()); |
| AutoBalancer balancer = new AutoBalancer(); |
| final String someSchedule = "1 * * * 1 *"; |
| final Properties props = new Properties(); |
| props.put(AutoBalancer.SCHEDULE, someSchedule); |
| balancer.initialize(cache, props); |
| balancer.getOOBAuditor().execute(); |
| assertEquals(1, cache.getInternalResourceManager().getStats().getAutoRebalanceAttempts()); |
| } |
| |
| @Test |
| public void testAutoRebalaceStatsOnLockFailure() throws InterruptedException { |
| acquireLockInDifferentThread(1); |
| assertEquals(0, cache.getInternalResourceManager().getStats().getAutoRebalanceAttempts()); |
| AutoBalancer balancer = new AutoBalancer(); |
| final String someSchedule = "1 * * * 1 *"; |
| final Properties props = new Properties(); |
| props.put(AutoBalancer.SCHEDULE, someSchedule); |
| balancer.initialize(cache, props); |
| balancer.getOOBAuditor().execute(); |
| assertEquals(0, cache.getInternalResourceManager().getStats().getAutoRebalanceAttempts()); |
| } |
| |
| @Test |
| public void testAutoBalanceStatUpdate() { |
| assertEquals(0, cache.getInternalResourceManager().getStats().getAutoRebalanceAttempts()); |
| new GeodeCacheFacade(cache).incrementAttemptCounter(); |
| assertEquals(1, cache.getInternalResourceManager().getStats().getAutoRebalanceAttempts()); |
| } |
| |
| @Test |
| public void testLockSuccess() throws InterruptedException { |
| acquireLockInDifferentThread(1); |
| DistributedLockService dls = new GeodeCacheFacade(cache).getDLS(); |
| assertFalse(dls.lock(AutoBalancer.AUTO_BALANCER_LOCK, 0, -1)); |
| } |
| |
| @Test |
| public void canReacquireLock() throws InterruptedException { |
| acquireLockInDifferentThread(2); |
| DistributedLockService dls = new GeodeCacheFacade(cache).getDLS(); |
| assertFalse(dls.lock(AutoBalancer.AUTO_BALANCER_LOCK, 0, -1)); |
| } |
| |
| @Test |
| public void testLockAlreadyTakenElsewhere() throws InterruptedException { |
| DistributedLockService dls = new GeodeCacheFacade(cache).getDLS(); |
| assertTrue(dls.lock(AutoBalancer.AUTO_BALANCER_LOCK, 0, -1)); |
| |
| final AtomicBoolean success = new AtomicBoolean(true); |
| |
| Thread thread = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| CacheOperationFacade cacheFacade = new GeodeCacheFacade(cache); |
| success.set(cacheFacade.acquireAutoBalanceLock()); |
| } |
| }); |
| thread.start(); |
| thread.join(); |
| |
| assertFalse(success.get()); |
| } |
| |
| @Test |
| public void testInitializerCacheXML() { |
| String configStr = |
| "<cache xmlns=\"http://geode.apache.org/schema/cache\" " |
| + " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" " |
| + " xsi:schemaLocation=\"http://geode.apache.org/schema/cache http://geode.apache.org/schema/cache/cache-1.0.xsd\"" |
| + " version=\"1.0\"> " |
| + " <initializer> " |
| + " <class-name>org.apache.geode.cache.util.AutoBalancer</class-name> " |
| + " <parameter name=\"schedule\"> " |
| + " <string>* * * * * ? </string> " |
| + " </parameter> " |
| + " </initializer> " |
| + " </cache>"; |
| |
| cache.loadCacheXml(new ByteArrayInputStream(configStr.getBytes())); |
| } |
| |
| @Test(expected = GemFireConfigException.class) |
| public void testInitFailOnMissingScheduleConf() { |
| String configStr = |
| "<cache xmlns=\"http://geode.apache.org/schema/cache\" " |
| + " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" " |
| + " xsi:schemaLocation=\"http://geode.apache.org/schema/cache http://geode.apache.org/schema/cache/cache-1.0.xsd\"" |
| + " version=\"1.0\"> " |
| + " <initializer> " |
| + " <class-name>org.apache.geode.cache.util.AutoBalancer</class-name> " |
| + " </initializer> " |
| + " </cache>"; |
| |
| cache.loadCacheXml(new ByteArrayInputStream(configStr.getBytes())); |
| } |
| |
| private GemFireCacheImpl createBasicCache() { |
| return (GemFireCacheImpl) new CacheFactory().set(MCAST_PORT, "0").create(); |
| } |
| |
| private Callable<Boolean> isAlive(final HostStatSampler statSampler) { |
| return new Callable<Boolean>() { |
| @Override |
| public Boolean call() throws Exception { |
| return statSampler.isAlive(); |
| } |
| }; |
| } |
| |
| private void acquireLockInDifferentThread(final int num) throws InterruptedException { |
| final CountDownLatch latch = new CountDownLatch(num); |
| Thread thread = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| CacheOperationFacade cacheFacade = new GeodeCacheFacade(cache); |
| for (int i = 0; i < num; i++) { |
| boolean result = cacheFacade.acquireAutoBalanceLock(); |
| if (result) { |
| latch.countDown(); |
| } |
| } |
| } |
| }); |
| thread.start(); |
| assertTrue(latch.await(TIMEOUT_SECONDS, TimeUnit.SECONDS)); |
| } |
| } |