opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java

   1 /*
   2  * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertNotNull;
  13 import static org.junit.Assert.assertNull;
  14 import static org.junit.Assert.assertSame;
  15 import static org.junit.Assert.assertTrue;
  16 import static org.mockito.Mockito.mock;
  17 import static org.mockito.Mockito.never;
  18 import static org.mockito.Mockito.times;
  19 import static org.mockito.Mockito.verify;
  20 import akka.actor.ActorRef;
  21 import akka.actor.ActorSystem;
  22 import akka.actor.AddressFromURIString;
  23 import akka.actor.Props;
  24 import akka.cluster.Cluster;
  25 import akka.cluster.ClusterEvent;
  26 import akka.dispatch.Dispatchers;
  27 import akka.japi.Creator;
  28 import akka.pattern.Patterns;
  29 import akka.persistence.RecoveryCompleted;
  30 import akka.testkit.JavaTestKit;
  31 import akka.testkit.TestActorRef;
  32 import akka.util.Timeout;
  33 import com.google.common.base.Optional;
  34 import com.google.common.collect.ImmutableMap;
  35 import com.google.common.collect.ImmutableSet;
  36 import com.google.common.collect.Sets;
  37 import com.google.common.util.concurrent.Uninterruptibles;
  38 import com.typesafe.config.ConfigFactory;
  39 import java.util.Arrays;
  40 import java.util.Collections;
  41 import java.util.List;
  42 import java.util.Map;
  43 import java.util.concurrent.CountDownLatch;
  44 import java.util.concurrent.TimeUnit;
  45 import org.junit.After;
  46 import org.junit.Before;
  47 import org.junit.Test;
  48 import org.mockito.Mock;
  49 import org.mockito.MockitoAnnotations;
  50 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
  51 import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException;
  52 import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException;
  53 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
  54 import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
  55 import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized;
  56 import org.opendaylight.controller.cluster.datastore.messages.CreateShard;
  57 import org.opendaylight.controller.cluster.datastore.messages.CreateShardReply;
  58 import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard;
  59 import org.opendaylight.controller.cluster.datastore.messages.FindPrimary;
  60 import org.opendaylight.controller.cluster.datastore.messages.LocalPrimaryShardFound;
  61 import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound;
  62 import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound;
  63 import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo;
  64 import org.opendaylight.controller.cluster.datastore.messages.RemotePrimaryShardFound;
  65 import org.opendaylight.controller.cluster.datastore.messages.ShardLeaderStateChanged;
  66 import org.opendaylight.controller.cluster.datastore.messages.SwitchShardBehavior;
  67 import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
  68 import org.opendaylight.controller.cluster.datastore.utils.MessageCollectorActor;
  69 import org.opendaylight.controller.cluster.datastore.utils.MockClusterWrapper;
  70 import org.opendaylight.controller.cluster.datastore.utils.MockConfiguration;
  71 import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache;
  72 import org.opendaylight.controller.cluster.notifications.LeaderStateChanged;
  73 import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener;
  74 import org.opendaylight.controller.cluster.notifications.RoleChangeNotification;
  75 import org.opendaylight.controller.cluster.raft.RaftState;
  76 import org.opendaylight.controller.cluster.raft.base.messages.FollowerInitialSyncUpStatus;
  77 import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior;
  78 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
  79 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  80 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  81 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  82 import scala.concurrent.Await;
  83 import scala.concurrent.Future;
  84 import scala.concurrent.duration.FiniteDuration;
  85
  86 public class ShardManagerTest extends AbstractActorTest {
  87     private static int ID_COUNTER = 1;
  88
  89     private final String shardMrgIDSuffix = "config" + ID_COUNTER++;
  90     private final String shardMgrID = "shard-manager-" + shardMrgIDSuffix;
  91
  92     @Mock
  93     private static CountDownLatch ready;
  94
  95     private static TestActorRef<MessageCollectorActor> mockShardActor;
  96
  97     private static String mockShardName;
  98
  99     private final DatastoreContext.Builder datastoreContextBuilder = DatastoreContext.newBuilder().
 100             dataStoreType(shardMrgIDSuffix).shardInitializationTimeout(600, TimeUnit.MILLISECONDS)
 101                    .shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(6);
 102
 103     private static ActorRef newMockShardActor(ActorSystem system, String shardName, String memberName) {
 104         String name = new ShardIdentifier(shardName, memberName,"config").toString();
 105         return TestActorRef.create(system, Props.create(MessageCollectorActor.class), name);
 106     }
 107
 108     private final PrimaryShardInfoFutureCache primaryShardInfoCache = new PrimaryShardInfoFutureCache();
 109
 110     @Before
 111     public void setUp() {
 112         MockitoAnnotations.initMocks(this);
 113
 114         InMemoryJournal.clear();
 115
 116         if(mockShardActor == null) {
 117             mockShardName = new ShardIdentifier(Shard.DEFAULT_NAME, "member-1", "config").toString();
 118             mockShardActor = TestActorRef.create(getSystem(), Props.create(MessageCollectorActor.class), mockShardName);
 119         }
 120
 121         mockShardActor.underlyingActor().clear();
 122     }
 123
 124     @After
 125     public void tearDown() {
 126         InMemoryJournal.clear();
 127     }
 128
 129     private Props newShardMgrProps(boolean persistent) {
 130         return ShardManager.props(new MockClusterWrapper(), new MockConfiguration(),
 131                 datastoreContextBuilder.persistent(persistent).build(), ready, primaryShardInfoCache);
 132     }
 133
 134     private Props newPropsShardMgrWithMockShardActor() {
 135         return newPropsShardMgrWithMockShardActor("shardManager", mockShardActor, new MockClusterWrapper(),
 136                 new MockConfiguration());
 137     }
 138
 139     private Props newPropsShardMgrWithMockShardActor(final String name, final ActorRef shardActor,
 140             final ClusterWrapper clusterWrapper, final Configuration config) {
 141         Creator<ShardManager> creator = new Creator<ShardManager>() {
 142             private static final long serialVersionUID = 1L;
 143             @Override
 144             public ShardManager create() throws Exception {
 145                 return new ForwardingShardManager(clusterWrapper, config, datastoreContextBuilder.build(),
 146                         ready, name, shardActor, primaryShardInfoCache);
 147             }
 148         };
 149
 150         return Props.create(new DelegatingShardManagerCreator(creator)).withDispatcher(Dispatchers.DefaultDispatcherId());
 151     }
 152
 153     @Test
 154     public void testOnReceiveFindPrimaryForNonExistentShard() throws Exception {
 155         new JavaTestKit(getSystem()) {{
 156             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 157
 158             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 159
 160             shardManager.tell(new FindPrimary("non-existent", false), getRef());
 161
 162             expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class);
 163         }};
 164     }
 165
 166     @Test
 167     public void testOnReceiveFindPrimaryForLocalLeaderShard() throws Exception {
 168         new JavaTestKit(getSystem()) {{
 169             String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 170
 171             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 172
 173             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 174             shardManager.tell(new ActorInitialized(), mockShardActor);
 175
 176             DataTree mockDataTree = mock(DataTree.class);
 177             shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree),
 178                     DataStoreVersions.CURRENT_VERSION), getRef());
 179
 180             MessageCollectorActor.expectFirstMatching(mockShardActor, RegisterRoleChangeListener.class);
 181             shardManager.tell((new RoleChangeNotification(memberId, RaftState.Candidate.name(),
 182                     RaftState.Leader.name())), mockShardActor);
 183
 184             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 185
 186             LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 187             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 188                     primaryFound.getPrimaryPath().contains("member-1-shard-default"));
 189             assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree() );
 190         }};
 191     }
 192
 193     @Test
 194     public void testOnReceiveFindPrimaryForNonLocalLeaderShardBeforeMemberUp() throws Exception {
 195         new JavaTestKit(getSystem()) {{
 196             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 197
 198             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 199             shardManager.tell(new ActorInitialized(), mockShardActor);
 200
 201             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 202             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 203             shardManager.tell(new RoleChangeNotification(memberId1,
 204                     RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
 205             shardManager.tell(new LeaderStateChanged(memberId1, memberId2, DataStoreVersions.CURRENT_VERSION), mockShardActor);
 206
 207             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 208
 209             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 210         }};
 211     }
 212
 213     @Test
 214     public void testOnReceiveFindPrimaryForNonLocalLeaderShard() throws Exception {
 215         new JavaTestKit(getSystem()) {{
 216             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 217
 218             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 219             shardManager.tell(new ActorInitialized(), mockShardActor);
 220
 221             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 222             MockClusterWrapper.sendMemberUp(shardManager, "member-2", getRef().path().toString());
 223
 224             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 225             shardManager.tell(new RoleChangeNotification(memberId1,
 226                     RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
 227             short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
 228             shardManager.tell(new ShardLeaderStateChanged(memberId1, memberId2, Optional.<DataTree>absent(),
 229                     leaderVersion), mockShardActor);
 230
 231             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 232
 233             RemotePrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 234             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 235                     primaryFound.getPrimaryPath().contains("member-2-shard-default"));
 236             assertEquals("getPrimaryVersion", leaderVersion, primaryFound.getPrimaryVersion());
 237         }};
 238     }
 239
 240     @Test
 241     public void testOnReceiveFindPrimaryForUninitializedShard() throws Exception {
 242         new JavaTestKit(getSystem()) {{
 243             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 244
 245             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 246
 247             expectMsgClass(duration("5 seconds"), NotInitializedException.class);
 248         }};
 249     }
 250
 251     @Test
 252     public void testOnReceiveFindPrimaryForInitializedShardWithNoRole() throws Exception {
 253         new JavaTestKit(getSystem()) {{
 254             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 255
 256             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 257             shardManager.tell(new ActorInitialized(), mockShardActor);
 258
 259             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 260
 261             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 262         }};
 263     }
 264
 265     @Test
 266     public void testOnReceiveFindPrimaryForFollowerShardWithNoInitialLeaderId() throws Exception {
 267         new JavaTestKit(getSystem()) {{
 268             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 269
 270             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 271             shardManager.tell(new ActorInitialized(), mockShardActor);
 272
 273             String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 274             shardManager.tell(new RoleChangeNotification(memberId,
 275                     RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
 276
 277             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 278
 279             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 280
 281             DataTree mockDataTree = mock(DataTree.class);
 282             shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree),
 283                     DataStoreVersions.CURRENT_VERSION), mockShardActor);
 284
 285             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 286
 287             LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 288             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 289                     primaryFound.getPrimaryPath().contains("member-1-shard-default"));
 290             assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree() );
 291         }};
 292     }
 293
 294     @Test
 295     public void testOnReceiveFindPrimaryWaitForShardLeader() throws Exception {
 296         new JavaTestKit(getSystem()) {{
 297             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 298
 299             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 300
 301             // We're passing waitUntilInitialized = true to FindPrimary so the response should be
 302             // delayed until we send ActorInitialized and RoleChangeNotification.
 303             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 304
 305             expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS));
 306
 307             shardManager.tell(new ActorInitialized(), mockShardActor);
 308
 309             expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS));
 310
 311             String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 312             shardManager.tell(new RoleChangeNotification(memberId,
 313                     RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor);
 314
 315             expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS));
 316
 317             DataTree mockDataTree = mock(DataTree.class);
 318             shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree),
 319                     DataStoreVersions.CURRENT_VERSION), mockShardActor);
 320
 321             LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 322             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 323                     primaryFound.getPrimaryPath().contains("member-1-shard-default"));
 324             assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree() );
 325
 326             expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS));
 327         }};
 328     }
 329
 330     @Test
 331     public void testOnReceiveFindPrimaryWaitForReadyWithUninitializedShard() throws Exception {
 332         new JavaTestKit(getSystem()) {{
 333             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 334
 335             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 336
 337             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 338
 339             expectMsgClass(duration("2 seconds"), NotInitializedException.class);
 340
 341             shardManager.tell(new ActorInitialized(), mockShardActor);
 342
 343             expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS));
 344         }};
 345     }
 346
 347     @Test
 348     public void testOnReceiveFindPrimaryWaitForReadyWithCandidateShard() throws Exception {
 349         new JavaTestKit(getSystem()) {{
 350             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 351
 352             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 353             shardManager.tell(new ActorInitialized(), mockShardActor);
 354             shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix,
 355                     null, RaftState.Candidate.name()), mockShardActor);
 356
 357             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 358
 359             expectMsgClass(duration("2 seconds"), NoShardLeaderException.class);
 360         }};
 361     }
 362
 363     @Test
 364     public void testOnReceiveFindPrimaryWaitForReadyWithIsolatedLeaderShard() throws Exception {
 365         new JavaTestKit(getSystem()) {{
 366             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 367
 368             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 369             shardManager.tell(new ActorInitialized(), mockShardActor);
 370             shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix,
 371                     null, RaftState.IsolatedLeader.name()), mockShardActor);
 372
 373             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 374
 375             expectMsgClass(duration("2 seconds"), NoShardLeaderException.class);
 376         }};
 377     }
 378
 379     @Test
 380     public void testOnReceiveFindPrimaryWaitForReadyWithNoRoleShard() throws Exception {
 381         new JavaTestKit(getSystem()) {{
 382             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 383
 384             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 385             shardManager.tell(new ActorInitialized(), mockShardActor);
 386
 387             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 388
 389             expectMsgClass(duration("2 seconds"), NoShardLeaderException.class);
 390         }};
 391     }
 392
 393     @Test
 394     public void testOnReceiveFindPrimaryForRemoteShard() throws Exception {
 395         String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
 396
 397         // Create an ActorSystem ShardManager actor for member-1.
 398
 399         final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 400         Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 401
 402         ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
 403
 404         final TestActorRef<ForwardingShardManager> shardManager1 = TestActorRef.create(system1,
 405                 newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1),
 406                         new MockConfiguration()), shardManagerID);
 407
 408         // Create an ActorSystem ShardManager actor for member-2.
 409
 410         final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
 411
 412         Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 413
 414         final ActorRef mockShardActor2 = newMockShardActor(system2, "astronauts", "member-2");
 415
 416         MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
 417                 put("default", Arrays.asList("member-1", "member-2")).
 418                 put("astronauts", Arrays.asList("member-2")).build());
 419
 420         final TestActorRef<ForwardingShardManager> shardManager2 = TestActorRef.create(system2,
 421                 newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2),
 422                         mockConfig2), shardManagerID);
 423
 424         new JavaTestKit(system1) {{
 425
 426             shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 427             shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 428
 429             shardManager2.tell(new ActorInitialized(), mockShardActor2);
 430
 431             String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix;
 432             short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
 433             shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2,
 434                     Optional.of(mock(DataTree.class)), leaderVersion), mockShardActor2);
 435             shardManager2.tell(new RoleChangeNotification(memberId2,
 436                     RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2);
 437
 438             shardManager1.underlyingActor().waitForMemberUp();
 439
 440             shardManager1.tell(new FindPrimary("astronauts", false), getRef());
 441
 442             RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 443             String path = found.getPrimaryPath();
 444             assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-astronauts-config"));
 445             assertEquals("getPrimaryVersion", leaderVersion, found.getPrimaryVersion());
 446
 447             shardManager2.underlyingActor().verifyFindPrimary();
 448
 449             Cluster.get(system2).down(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 450
 451             shardManager1.underlyingActor().waitForMemberRemoved();
 452
 453             shardManager1.tell(new FindPrimary("astronauts", false), getRef());
 454
 455             expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class);
 456         }};
 457
 458         JavaTestKit.shutdownActorSystem(system1);
 459         JavaTestKit.shutdownActorSystem(system2);
 460     }
 461
 462     @Test
 463     public void testShardAvailabilityOnChangeOfMemberReachability() throws Exception {
 464         String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
 465
 466         // Create an ActorSystem ShardManager actor for member-1.
 467
 468         final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 469         Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 470
 471         final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
 472
 473         final TestActorRef<ForwardingShardManager> shardManager1 = TestActorRef.create(system1,
 474             newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1),
 475                 new MockConfiguration()), shardManagerID);
 476
 477         // Create an ActorSystem ShardManager actor for member-2.
 478
 479         final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
 480
 481         Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 482
 483         final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2");
 484
 485         MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
 486             put("default", Arrays.asList("member-1", "member-2")).build());
 487
 488         final TestActorRef<ForwardingShardManager> shardManager2 = TestActorRef.create(system2,
 489             newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2),
 490                 mockConfig2), shardManagerID);
 491
 492         new JavaTestKit(system1) {{
 493
 494             shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 495             shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 496             shardManager1.tell(new ActorInitialized(), mockShardActor1);
 497             shardManager2.tell(new ActorInitialized(), mockShardActor2);
 498
 499             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 500             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 501             shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId2,
 502                 Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION), mockShardActor1);
 503             shardManager1.tell(new RoleChangeNotification(memberId1,
 504                 RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor1);
 505             shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, Optional.of(mock(DataTree.class)),
 506                     DataStoreVersions.CURRENT_VERSION),
 507                 mockShardActor2);
 508             shardManager2.tell(new RoleChangeNotification(memberId2,
 509                 RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2);
 510             shardManager1.underlyingActor().waitForMemberUp();
 511
 512             shardManager1.tell(new FindPrimary("default", true), getRef());
 513
 514             RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 515             String path = found.getPrimaryPath();
 516             assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-default-config"));
 517
 518             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 519                 createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 520
 521             shardManager1.underlyingActor().waitForUnreachableMember();
 522
 523             shardManager1.tell(new FindPrimary("default", true), getRef());
 524
 525             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 526
 527             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 528                 createReachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 529
 530             shardManager1.underlyingActor().waitForReachableMember();
 531
 532             shardManager1.tell(new FindPrimary("default", true), getRef());
 533
 534             RemotePrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 535             String path1 = found1.getPrimaryPath();
 536             assertTrue("Unexpected primary path " + path1, path1.contains("member-2-shard-default-config"));
 537
 538         }};
 539
 540         JavaTestKit.shutdownActorSystem(system1);
 541         JavaTestKit.shutdownActorSystem(system2);
 542     }
 543
 544     @Test
 545     public void testShardAvailabilityChangeOnMemberUnreachableAndLeadershipChange() throws Exception {
 546         String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
 547
 548         // Create an ActorSystem ShardManager actor for member-1.
 549
 550         final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 551         Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 552
 553         final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
 554
 555         final TestActorRef<ForwardingShardManager> shardManager1 = TestActorRef.create(system1,
 556             newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1),
 557                 new MockConfiguration()), shardManagerID);
 558
 559         // Create an ActorSystem ShardManager actor for member-2.
 560
 561         final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
 562
 563         Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 564
 565         final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2");
 566
 567         MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
 568             put("default", Arrays.asList("member-1", "member-2")).build());
 569
 570         final TestActorRef<ForwardingShardManager> shardManager2 = TestActorRef.create(system2,
 571             newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2),
 572                 mockConfig2), shardManagerID);
 573
 574         new JavaTestKit(system1) {{
 575
 576             shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 577             shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 578             shardManager1.tell(new ActorInitialized(), mockShardActor1);
 579             shardManager2.tell(new ActorInitialized(), mockShardActor2);
 580
 581             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 582             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 583             shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId2,
 584                 Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION), mockShardActor1);
 585             shardManager1.tell(new RoleChangeNotification(memberId1,
 586                 RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor1);
 587             shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, Optional.of(mock(DataTree.class)),
 588                     DataStoreVersions.CURRENT_VERSION),
 589                 mockShardActor2);
 590             shardManager2.tell(new RoleChangeNotification(memberId2,
 591                 RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2);
 592             shardManager1.underlyingActor().waitForMemberUp();
 593
 594             shardManager1.tell(new FindPrimary("default", true), getRef());
 595
 596             RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 597             String path = found.getPrimaryPath();
 598             assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-default-config"));
 599
 600             primaryShardInfoCache.putSuccessful("default", new PrimaryShardInfo(system1.actorSelection(
 601                     mockShardActor1.path()), DataStoreVersions.CURRENT_VERSION, Optional.<DataTree>absent()));
 602
 603             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 604                 createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 605
 606             shardManager1.underlyingActor().waitForUnreachableMember();
 607
 608             shardManager1.tell(new FindPrimary("default", true), getRef());
 609
 610             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 611
 612             assertNull("Expected primaryShardInfoCache entry removed", primaryShardInfoCache.getIfPresent("default"));
 613
 614             shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId1, Optional.of(mock(DataTree.class)),
 615                     DataStoreVersions.CURRENT_VERSION), mockShardActor1);
 616             shardManager1.tell(new RoleChangeNotification(memberId1,
 617                 RaftState.Follower.name(), RaftState.Leader.name()), mockShardActor1);
 618
 619             shardManager1.tell(new FindPrimary("default", true), getRef());
 620
 621             LocalPrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 622             String path1 = found1.getPrimaryPath();
 623             assertTrue("Unexpected primary path " + path1, path1.contains("member-1-shard-default-config"));
 624
 625         }};
 626
 627         JavaTestKit.shutdownActorSystem(system1);
 628         JavaTestKit.shutdownActorSystem(system2);
 629     }
 630
 631
 632     @Test
 633     public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception {
 634         new JavaTestKit(getSystem()) {{
 635             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 636
 637             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 638
 639             shardManager.tell(new FindLocalShard("non-existent", false), getRef());
 640
 641             LocalShardNotFound notFound = expectMsgClass(duration("5 seconds"), LocalShardNotFound.class);
 642
 643             assertEquals("getShardName", "non-existent", notFound.getShardName());
 644         }};
 645     }
 646
 647     @Test
 648     public void testOnReceiveFindLocalShardForExistentShard() throws Exception {
 649         new JavaTestKit(getSystem()) {{
 650             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 651
 652             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 653             shardManager.tell(new ActorInitialized(), mockShardActor);
 654
 655             shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
 656
 657             LocalShardFound found = expectMsgClass(duration("5 seconds"), LocalShardFound.class);
 658
 659             assertTrue("Found path contains " + found.getPath().path().toString(),
 660                     found.getPath().path().toString().contains("member-1-shard-default-config"));
 661         }};
 662     }
 663
 664     @Test
 665     public void testOnReceiveFindLocalShardForNotInitializedShard() throws Exception {
 666         new JavaTestKit(getSystem()) {{
 667             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 668
 669             shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
 670
 671             expectMsgClass(duration("5 seconds"), NotInitializedException.class);
 672         }};
 673     }
 674
 675     @Test
 676     public void testOnReceiveFindLocalShardWaitForShardInitialized() throws Exception {
 677         new JavaTestKit(getSystem()) {{
 678             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 679
 680             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 681
 682             // We're passing waitUntilInitialized = true to FindLocalShard so the response should be
 683             // delayed until we send ActorInitialized.
 684             Future<Object> future = Patterns.ask(shardManager, new FindLocalShard(Shard.DEFAULT_NAME, true),
 685                     new Timeout(5, TimeUnit.SECONDS));
 686
 687             shardManager.tell(new ActorInitialized(), mockShardActor);
 688
 689             Object resp = Await.result(future, duration("5 seconds"));
 690             assertTrue("Expected: LocalShardFound, Actual: " + resp, resp instanceof LocalShardFound);
 691         }};
 692     }
 693
 694     @Test
 695     public void testOnRecoveryJournalIsCleaned() {
 696         InMemoryJournal.addEntry(shardMgrID, 1L, new ShardManager.SchemaContextModules(
 697                 ImmutableSet.of("foo")));
 698         InMemoryJournal.addEntry(shardMgrID, 2L, new ShardManager.SchemaContextModules(
 699                 ImmutableSet.of("bar")));
 700         InMemoryJournal.addDeleteMessagesCompleteLatch(shardMgrID);
 701
 702         new JavaTestKit(getSystem()) {{
 703             TestActorRef<TestShardManager> shardManager = TestActorRef.create(getSystem(),
 704                     Props.create(new TestShardManagerCreator(shardMrgIDSuffix)));
 705
 706             shardManager.underlyingActor().waitForRecoveryComplete();
 707             InMemoryJournal.waitForDeleteMessagesComplete(shardMgrID);
 708
 709             // Journal entries up to the last one should've been deleted
 710             Map<Long, Object> journal = InMemoryJournal.get(shardMgrID);
 711             synchronized (journal) {
 712                 assertEquals("Journal size", 0, journal.size());
 713             }
 714         }};
 715     }
 716
 717     @Test
 718     public void testRoleChangeNotificationAndShardLeaderStateChangedReleaseReady() throws Exception {
 719         new JavaTestKit(getSystem()) {
 720             {
 721                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 722
 723                 String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 724                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 725                         memberId, RaftState.Candidate.name(), RaftState.Leader.name()));
 726
 727                 verify(ready, never()).countDown();
 728
 729                 shardManager.underlyingActor().onReceiveCommand(new ShardLeaderStateChanged(memberId, memberId,
 730                         Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION));
 731
 732                 verify(ready, times(1)).countDown();
 733
 734             }};
 735     }
 736
 737     @Test
 738     public void testRoleChangeNotificationToFollowerWithShardLeaderStateChangedReleaseReady() throws Exception {
 739         new JavaTestKit(getSystem()) {
 740             {
 741                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 742
 743                 String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 744                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 745                         memberId, null, RaftState.Follower.name()));
 746
 747                 verify(ready, never()).countDown();
 748
 749                 shardManager.underlyingActor().onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
 750
 751                 shardManager.underlyingActor().onReceiveCommand(new ShardLeaderStateChanged(memberId,
 752                         "member-2-shard-default-" + shardMrgIDSuffix, Optional.of(mock(DataTree.class)),
 753                         DataStoreVersions.CURRENT_VERSION));
 754
 755                 verify(ready, times(1)).countDown();
 756
 757             }};
 758     }
 759
 760     @Test
 761     public void testReadyCountDownForMemberUpAfterLeaderStateChanged() throws Exception {
 762         new JavaTestKit(getSystem()) {
 763             {
 764                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 765
 766                 String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 767                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 768                         memberId, null, RaftState.Follower.name()));
 769
 770                 verify(ready, never()).countDown();
 771
 772                 shardManager.underlyingActor().onReceiveCommand(new ShardLeaderStateChanged(memberId,
 773                         "member-2-shard-default-" + shardMrgIDSuffix, Optional.of(mock(DataTree.class)),
 774                         DataStoreVersions.CURRENT_VERSION));
 775
 776                 shardManager.underlyingActor().onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
 777
 778                 verify(ready, times(1)).countDown();
 779
 780             }};
 781     }
 782
 783     @Test
 784     public void testRoleChangeNotificationDoNothingForUnknownShard() throws Exception {
 785         new JavaTestKit(getSystem()) {
 786             {
 787                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 788
 789                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 790                         "unknown", RaftState.Candidate.name(), RaftState.Leader.name()));
 791
 792                 verify(ready, never()).countDown();
 793
 794             }};
 795     }
 796
 797
 798     @Test
 799     public void testByDefaultSyncStatusIsFalse() throws Exception{
 800         final Props persistentProps = newShardMgrProps(true);
 801         final TestActorRef<ShardManager> shardManager =
 802                 TestActorRef.create(getSystem(), persistentProps);
 803
 804         ShardManager shardManagerActor = shardManager.underlyingActor();
 805
 806         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 807     }
 808
 809     @Test
 810     public void testWhenShardIsLeaderSyncStatusIsTrue() throws Exception{
 811         final Props persistentProps = ShardManager.props(
 812                 new MockClusterWrapper(),
 813                 new MockConfiguration(),
 814                 DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
 815         final TestActorRef<ShardManager> shardManager =
 816                 TestActorRef.create(getSystem(), persistentProps);
 817
 818         ShardManager shardManagerActor = shardManager.underlyingActor();
 819         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
 820                 RaftState.Follower.name(), RaftState.Leader.name()));
 821
 822         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 823     }
 824
 825     @Test
 826     public void testWhenShardIsCandidateSyncStatusIsFalse() throws Exception{
 827         final Props persistentProps = newShardMgrProps(true);
 828         final TestActorRef<ShardManager> shardManager =
 829                 TestActorRef.create(getSystem(), persistentProps);
 830
 831         ShardManager shardManagerActor = shardManager.underlyingActor();
 832         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
 833                 RaftState.Follower.name(), RaftState.Candidate.name()));
 834
 835         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 836
 837         // Send a FollowerInitialSyncStatus with status = true for the replica whose current state is candidate
 838         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-default-unknown"));
 839
 840         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 841     }
 842
 843     @Test
 844     public void testWhenShardIsFollowerSyncStatusDependsOnFollowerInitialSyncStatus() throws Exception{
 845         final Props persistentProps = ShardManager.props(
 846                 new MockClusterWrapper(),
 847                 new MockConfiguration(),
 848                 DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
 849         final TestActorRef<ShardManager> shardManager =
 850                 TestActorRef.create(getSystem(), persistentProps);
 851
 852         ShardManager shardManagerActor = shardManager.underlyingActor();
 853         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
 854                 RaftState.Candidate.name(), RaftState.Follower.name()));
 855
 856         // Initially will be false
 857         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 858
 859         // Send status true will make sync status true
 860         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-default-unknown"));
 861
 862         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 863
 864         // Send status false will make sync status false
 865         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(false, "member-1-shard-default-unknown"));
 866
 867         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 868
 869     }
 870
 871     @Test
 872     public void testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards() throws Exception{
 873         final Props persistentProps = ShardManager.props(
 874                 new MockClusterWrapper(),
 875                 new MockConfiguration() {
 876                     @Override
 877                     public List<String> getMemberShardNames(String memberName) {
 878                         return Arrays.asList("default", "astronauts");
 879                     }
 880                 },
 881                 DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
 882         final TestActorRef<ShardManager> shardManager =
 883                 TestActorRef.create(getSystem(), persistentProps);
 884
 885         ShardManager shardManagerActor = shardManager.underlyingActor();
 886
 887         // Initially will be false
 888         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 889
 890         // Make default shard leader
 891         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
 892                 RaftState.Follower.name(), RaftState.Leader.name()));
 893
 894         // default = Leader, astronauts is unknown so sync status remains false
 895         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 896
 897         // Make astronauts shard leader as well
 898         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-astronauts-unknown",
 899                 RaftState.Follower.name(), RaftState.Leader.name()));
 900
 901         // Now sync status should be true
 902         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 903
 904         // Make astronauts a Follower
 905         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-astronauts-unknown",
 906                 RaftState.Leader.name(), RaftState.Follower.name()));
 907
 908         // Sync status is not true
 909         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 910
 911         // Make the astronauts follower sync status true
 912         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-astronauts-unknown"));
 913
 914         // Sync status is now true
 915         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 916
 917     }
 918
 919     @Test
 920     public void testOnReceiveSwitchShardBehavior() throws Exception {
 921         new JavaTestKit(getSystem()) {{
 922             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 923
 924             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 925             shardManager.tell(new ActorInitialized(), mockShardActor);
 926
 927             shardManager.tell(new SwitchShardBehavior(mockShardName, "Leader", 1000), getRef());
 928
 929             SwitchBehavior switchBehavior = MessageCollectorActor.expectFirstMatching(mockShardActor, SwitchBehavior.class);
 930
 931             assertEquals(RaftState.Leader, switchBehavior.getNewState());
 932             assertEquals(1000, switchBehavior.getNewTerm());
 933         }};
 934     }
 935
 936     public void testOnReceiveCreateShard() {
 937         new JavaTestKit(getSystem()) {{
 938             datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true);
 939
 940             ActorRef shardManager = getSystem().actorOf(newShardMgrProps(false));
 941
 942             SchemaContext schemaContext = TestModel.createTestContext();
 943             shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
 944
 945             DatastoreContext datastoreContext = DatastoreContext.newBuilder().shardElectionTimeoutFactor(100).
 946                     persistent(false).build();
 947             TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
 948
 949             shardManager.tell(new CreateShard("foo", Arrays.asList("member-1", "member-5", "member-6"), shardPropsCreator,
 950                     datastoreContext), getRef());
 951
 952             expectMsgClass(duration("5 seconds"), CreateShardReply.class);
 953
 954             shardManager.tell(new FindLocalShard("foo", true), getRef());
 955
 956             expectMsgClass(duration("5 seconds"), LocalShardFound.class);
 957
 958             assertEquals("isRecoveryApplicable", false, shardPropsCreator.datastoreContext.isPersistent());
 959             assertEquals("peerMembers", Sets.newHashSet(new ShardIdentifier("foo", "member-5", shardMrgIDSuffix).toString(),
 960                     new ShardIdentifier("foo", "member-6", shardMrgIDSuffix).toString()),
 961                     shardPropsCreator.peerAddresses.keySet());
 962             assertEquals("ShardIdentifier", new ShardIdentifier("foo", "member-1", shardMrgIDSuffix),
 963                     shardPropsCreator.shardId);
 964             assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
 965
 966             // Send CreateShard with same name - should fail.
 967
 968             shardManager.tell(new CreateShard("foo", Collections.<String>emptyList(), shardPropsCreator, null), getRef());
 969
 970             expectMsgClass(duration("5 seconds"), akka.actor.Status.Failure.class);
 971         }};
 972     }
 973
 974     @Test
 975     public void testOnReceiveCreateShardWithNoInitialSchemaContext() {
 976         new JavaTestKit(getSystem()) {{
 977             ActorRef shardManager = getSystem().actorOf(newShardMgrProps(false));
 978
 979             TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
 980
 981             shardManager.tell(new CreateShard("foo", Arrays.asList("member-1"), shardPropsCreator, null), getRef());
 982
 983             expectMsgClass(duration("5 seconds"), CreateShardReply.class);
 984
 985             SchemaContext schemaContext = TestModel.createTestContext();
 986             shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
 987
 988             shardManager.tell(new FindLocalShard("foo", true), getRef());
 989
 990             expectMsgClass(duration("5 seconds"), LocalShardFound.class);
 991
 992             assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
 993             assertNotNull("schemaContext is null", shardPropsCreator.datastoreContext);
 994         }};
 995     }
 996
 997     private static class TestShardPropsCreator implements ShardPropsCreator {
 998         ShardIdentifier shardId;
 999         Map<String, String> peerAddresses;
1000         SchemaContext schemaContext;
1001         DatastoreContext datastoreContext;
1002
1003         @Override
1004         public Props newProps(ShardIdentifier shardId, Map<String, String> peerAddresses,
1005                 DatastoreContext datastoreContext, SchemaContext schemaContext) {
1006             this.shardId = shardId;
1007             this.peerAddresses = peerAddresses;
1008             this.schemaContext = schemaContext;
1009             this.datastoreContext = datastoreContext;
1010             return Shard.props(shardId, peerAddresses, datastoreContext, schemaContext);
1011         }
1012
1013     }
1014
1015     private static class TestShardManager extends ShardManager {
1016         private final CountDownLatch recoveryComplete = new CountDownLatch(1);
1017
1018         TestShardManager(String shardMrgIDSuffix) {
1019             super(new MockClusterWrapper(), new MockConfiguration(),
1020                     DatastoreContext.newBuilder().dataStoreType(shardMrgIDSuffix).build(), ready,
1021                     new PrimaryShardInfoFutureCache());
1022         }
1023
1024         @Override
1025         public void handleRecover(Object message) throws Exception {
1026             try {
1027                 super.handleRecover(message);
1028             } finally {
1029                 if(message instanceof RecoveryCompleted) {
1030                     recoveryComplete.countDown();
1031                 }
1032             }
1033         }
1034
1035         void waitForRecoveryComplete() {
1036             assertEquals("Recovery complete", true,
1037                     Uninterruptibles.awaitUninterruptibly(recoveryComplete, 5, TimeUnit.SECONDS));
1038         }
1039     }
1040
1041     @SuppressWarnings("serial")
1042     static class TestShardManagerCreator implements Creator<TestShardManager> {
1043         String shardMrgIDSuffix;
1044
1045         TestShardManagerCreator(String shardMrgIDSuffix) {
1046             this.shardMrgIDSuffix = shardMrgIDSuffix;
1047         }
1048
1049         @Override
1050         public TestShardManager create() throws Exception {
1051             return new TestShardManager(shardMrgIDSuffix);
1052         }
1053
1054     }
1055
1056     private static class DelegatingShardManagerCreator implements Creator<ShardManager> {
1057         private static final long serialVersionUID = 1L;
1058         private final Creator<ShardManager> delegate;
1059
1060         public DelegatingShardManagerCreator(Creator<ShardManager> delegate) {
1061             this.delegate = delegate;
1062         }
1063
1064         @Override
1065         public ShardManager create() throws Exception {
1066             return delegate.create();
1067         }
1068     }
1069
1070     private static class ForwardingShardManager extends ShardManager {
1071         private CountDownLatch findPrimaryMessageReceived = new CountDownLatch(1);
1072         private CountDownLatch memberUpReceived = new CountDownLatch(1);
1073         private CountDownLatch memberRemovedReceived = new CountDownLatch(1);
1074         private CountDownLatch memberUnreachableReceived = new CountDownLatch(1);
1075         private CountDownLatch memberReachableReceived = new CountDownLatch(1);
1076         private final ActorRef shardActor;
1077         private final String name;
1078
1079         protected ForwardingShardManager(ClusterWrapper cluster, Configuration configuration,
1080                 DatastoreContext datastoreContext, CountDownLatch waitTillReadyCountdownLatch, String name,
1081                 ActorRef shardActor, PrimaryShardInfoFutureCache primaryShardInfoCache) {
1082             super(cluster, configuration, datastoreContext, waitTillReadyCountdownLatch, primaryShardInfoCache);
1083             this.shardActor = shardActor;
1084             this.name = name;
1085         }
1086
1087         @Override
1088         public void handleCommand(Object message) throws Exception {
1089             try{
1090                 super.handleCommand(message);
1091             } finally {
1092                 if(message instanceof FindPrimary) {
1093                     findPrimaryMessageReceived.countDown();
1094                 } else if(message instanceof ClusterEvent.MemberUp) {
1095                     String role = ((ClusterEvent.MemberUp)message).member().roles().head();
1096                     if(!getCluster().getCurrentMemberName().equals(role)) {
1097                         memberUpReceived.countDown();
1098                     }
1099                 } else if(message instanceof ClusterEvent.MemberRemoved) {
1100                     String role = ((ClusterEvent.MemberRemoved)message).member().roles().head();
1101                     if(!getCluster().getCurrentMemberName().equals(role)) {
1102                         memberRemovedReceived.countDown();
1103                     }
1104                 } else if(message instanceof ClusterEvent.UnreachableMember) {
1105                     String role = ((ClusterEvent.UnreachableMember)message).member().roles().head();
1106                     if(!getCluster().getCurrentMemberName().equals(role)) {
1107                         memberUnreachableReceived.countDown();
1108                     }
1109                 } else if(message instanceof ClusterEvent.ReachableMember) {
1110                     String role = ((ClusterEvent.ReachableMember)message).member().roles().head();
1111                     if(!getCluster().getCurrentMemberName().equals(role)) {
1112                         memberReachableReceived.countDown();
1113                     }
1114                 }
1115             }
1116         }
1117
1118         @Override
1119         public String persistenceId() {
1120             return name;
1121         }
1122
1123         @Override
1124         protected ActorRef newShardActor(SchemaContext schemaContext, ShardInformation info) {
1125             return shardActor;
1126         }
1127
1128         void waitForMemberUp() {
1129             assertEquals("MemberUp received", true,
1130                     Uninterruptibles.awaitUninterruptibly(memberUpReceived, 5, TimeUnit.SECONDS));
1131             memberUpReceived = new CountDownLatch(1);
1132         }
1133
1134         void waitForMemberRemoved() {
1135             assertEquals("MemberRemoved received", true,
1136                     Uninterruptibles.awaitUninterruptibly(memberRemovedReceived, 5, TimeUnit.SECONDS));
1137             memberRemovedReceived = new CountDownLatch(1);
1138         }
1139
1140         void waitForUnreachableMember() {
1141             assertEquals("UnreachableMember received", true,
1142                 Uninterruptibles.awaitUninterruptibly(memberUnreachableReceived, 5, TimeUnit.SECONDS
1143                 ));
1144             memberUnreachableReceived = new CountDownLatch(1);
1145         }
1146
1147         void waitForReachableMember() {
1148             assertEquals("ReachableMember received", true,
1149                 Uninterruptibles.awaitUninterruptibly(memberReachableReceived, 5, TimeUnit.SECONDS));
1150             memberReachableReceived = new CountDownLatch(1);
1151         }
1152
1153         void verifyFindPrimary() {
1154             assertEquals("FindPrimary received", true,
1155                     Uninterruptibles.awaitUninterruptibly(findPrimaryMessageReceived, 5, TimeUnit.SECONDS));
1156             findPrimaryMessageReceived = new CountDownLatch(1);
1157         }
1158     }
1159 }