| /* |
| * 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.bookkeeper.client; |
| |
| import static org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicyImpl.REPP_DNS_RESOLVER_CLASS; |
| import static org.apache.bookkeeper.feature.SettableFeatureProvider.DISABLE_ALL; |
| |
| import com.google.common.collect.Sets; |
| import com.google.common.util.concurrent.ThreadFactoryBuilder; |
| import io.netty.util.HashedWheelTimer; |
| import java.net.InetAddress; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.concurrent.TimeUnit; |
| import junit.framework.TestCase; |
| import org.apache.bookkeeper.conf.ClientConfiguration; |
| import org.apache.bookkeeper.net.BookieId; |
| import org.apache.bookkeeper.net.BookieSocketAddress; |
| import org.apache.bookkeeper.net.DNSToSwitchMapping; |
| import org.apache.bookkeeper.net.NetworkTopology; |
| import org.apache.bookkeeper.stats.NullStatsLogger; |
| import org.apache.bookkeeper.util.StaticDNSResolver; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Test the rackaware ensemble placement policy. |
| */ |
| public class TestRackawarePolicyNotificationUpdates extends TestCase { |
| |
| static final Logger LOG = LoggerFactory.getLogger(TestRackawarePolicyNotificationUpdates.class); |
| |
| RackawareEnsemblePlacementPolicy repp; |
| HashedWheelTimer timer; |
| ClientConfiguration conf = new ClientConfiguration(); |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| conf.setProperty(REPP_DNS_RESOLVER_CLASS, StaticDNSResolver.class.getName()); |
| |
| StaticDNSResolver.reset(); |
| StaticDNSResolver.addNodeToRack(InetAddress.getLocalHost().getHostAddress(), |
| NetworkTopology.DEFAULT_REGION_AND_RACK); |
| StaticDNSResolver.addNodeToRack("127.0.0.1", NetworkTopology.DEFAULT_REGION_AND_RACK); |
| StaticDNSResolver.addNodeToRack("localhost", NetworkTopology.DEFAULT_REGION_AND_RACK); |
| LOG.info("Set up static DNS Resolver."); |
| |
| timer = new HashedWheelTimer(new ThreadFactoryBuilder().setNameFormat("TestTimer-%d").build(), |
| conf.getTimeoutTimerTickDurationMs(), TimeUnit.MILLISECONDS, conf.getTimeoutTimerNumTicks()); |
| |
| repp = new RackawareEnsemblePlacementPolicy(); |
| repp.initialize(conf, Optional.<DNSToSwitchMapping> empty(), timer, |
| DISABLE_ALL, NullStatsLogger.INSTANCE, BookieSocketAddress.LEGACY_BOOKIEID_RESOLVER); |
| repp.withDefaultRack(NetworkTopology.DEFAULT_REGION_AND_RACK); |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| repp.uninitalize(); |
| super.tearDown(); |
| } |
| |
| @Test |
| public void testNotifyRackChange() throws Exception { |
| BookieSocketAddress addr1 = new BookieSocketAddress("127.0.1.1", 3181); |
| BookieSocketAddress addr2 = new BookieSocketAddress("127.0.1.2", 3181); |
| BookieSocketAddress addr3 = new BookieSocketAddress("127.0.1.3", 3181); |
| BookieSocketAddress addr4 = new BookieSocketAddress("127.0.1.4", 3181); |
| |
| // update dns mapping |
| StaticDNSResolver.addNodeToRack(addr1.getHostName(), "/default-region/rack-1"); |
| StaticDNSResolver.addNodeToRack(addr2.getHostName(), "/default-region/rack-2"); |
| StaticDNSResolver.addNodeToRack(addr3.getHostName(), "/default-region/rack-2"); |
| StaticDNSResolver.addNodeToRack(addr4.getHostName(), "/default-region/rack-2"); |
| int numOfAvailableRacks = 2; |
| |
| // Update cluster |
| Set<BookieId> addrs = Sets.newHashSet(addr1.toBookieId(), |
| addr2.toBookieId(), addr3.toBookieId(), addr4.toBookieId()); |
| repp.onClusterChanged(addrs, new HashSet<>()); |
| |
| int ensembleSize = 3; |
| int writeQuorumSize = 2; |
| int acqQuorumSize = 2; |
| List<BookieId> ensemble = repp.newEnsemble(ensembleSize, writeQuorumSize, |
| acqQuorumSize, Collections.emptyMap(), Collections.emptySet()).getResult(); |
| int numCovered = TestRackawareEnsemblePlacementPolicy.getNumCoveredWriteQuorums(ensemble, writeQuorumSize, |
| conf.getMinNumRacksPerWriteQuorum(), repp.bookieAddressResolver); |
| assertTrue(numCovered >= 1 && numCovered < 3); |
| assertTrue(ensemble.contains(addr1.toBookieId())); |
| |
| List<BookieSocketAddress> bookieAddressList = new ArrayList<>(); |
| List<String> rackList = new ArrayList<>(); |
| bookieAddressList.add(addr2); |
| rackList.add("/default-region/rack-3"); |
| StaticDNSResolver.changeRack(bookieAddressList, rackList); |
| numOfAvailableRacks = numOfAvailableRacks + 1; |
| acqQuorumSize = 1; |
| ensemble = repp.newEnsemble(ensembleSize, writeQuorumSize, acqQuorumSize, Collections.emptyMap(), |
| Collections.emptySet()).getResult(); |
| assertEquals(3, TestRackawareEnsemblePlacementPolicy.getNumCoveredWriteQuorums(ensemble, writeQuorumSize, |
| conf.getMinNumRacksPerWriteQuorum(), repp.bookieAddressResolver)); |
| assertTrue(ensemble.contains(addr1.toBookieId())); |
| assertTrue(ensemble.contains(addr2.toBookieId())); |
| } |
| } |