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

   1 package org.opendaylight.controller.cluster.datastore;
   2
   3 import static org.junit.Assert.assertEquals;
   4 import static org.junit.Assert.assertNotNull;
   5 import static org.junit.Assert.assertNull;
   6 import static org.junit.Assert.assertSame;
   7 import static org.junit.Assert.assertTrue;
   8 import static org.mockito.Mockito.mock;
   9 import static org.mockito.Mockito.never;
  10 import static org.mockito.Mockito.times;
  11 import static org.mockito.Mockito.verify;
  12 import akka.actor.ActorRef;
  13 import akka.actor.ActorSystem;
  14 import akka.actor.AddressFromURIString;
  15 import akka.actor.Props;
  16 import akka.cluster.Cluster;
  17 import akka.cluster.ClusterEvent;
  18 import akka.dispatch.Dispatchers;
  19 import akka.japi.Creator;
  20 import akka.pattern.Patterns;
  21 import akka.persistence.RecoveryCompleted;
  22 import akka.testkit.JavaTestKit;
  23 import akka.testkit.TestActorRef;
  24 import akka.util.Timeout;
  25 import com.google.common.base.Optional;
  26 import com.google.common.collect.ImmutableMap;
  27 import com.google.common.collect.ImmutableSet;
  28 import com.google.common.collect.Sets;
  29 import com.google.common.util.concurrent.Uninterruptibles;
  30 import com.typesafe.config.ConfigFactory;
  31 import java.util.Arrays;
  32 import java.util.Collections;
  33 import java.util.List;
  34 import java.util.Map;
  35 import java.util.concurrent.CountDownLatch;
  36 import java.util.concurrent.TimeUnit;
  37 import org.junit.After;
  38 import org.junit.Before;
  39 import org.junit.Test;
  40 import org.mockito.Mock;
  41 import org.mockito.MockitoAnnotations;
  42 import org.opendaylight.controller.cluster.datastore.config.Configuration;
  43 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
  44 import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException;
  45 import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException;
  46 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
  47 import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
  48 import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized;
  49 import org.opendaylight.controller.cluster.datastore.messages.CreateShard;
  50 import org.opendaylight.controller.cluster.datastore.messages.CreateShardReply;
  51 import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard;
  52 import org.opendaylight.controller.cluster.datastore.messages.FindPrimary;
  53 import org.opendaylight.controller.cluster.datastore.messages.LocalPrimaryShardFound;
  54 import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound;
  55 import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound;
  56 import org.opendaylight.controller.cluster.datastore.messages.PeerDown;
  57 import org.opendaylight.controller.cluster.datastore.messages.PeerUp;
  58 import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo;
  59 import org.opendaylight.controller.cluster.datastore.messages.RemotePrimaryShardFound;
  60 import org.opendaylight.controller.cluster.datastore.messages.ShardLeaderStateChanged;
  61 import org.opendaylight.controller.cluster.datastore.messages.SwitchShardBehavior;
  62 import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
  63 import org.opendaylight.controller.cluster.datastore.utils.MockClusterWrapper;
  64 import org.opendaylight.controller.cluster.datastore.utils.MockConfiguration;
  65 import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache;
  66 import org.opendaylight.controller.cluster.notifications.LeaderStateChanged;
  67 import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener;
  68 import org.opendaylight.controller.cluster.notifications.RoleChangeNotification;
  69 import org.opendaylight.controller.cluster.raft.RaftState;
  70 import org.opendaylight.controller.cluster.raft.base.messages.FollowerInitialSyncUpStatus;
  71 import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior;
  72 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
  73 import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
  74 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  75 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  76 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  77 import scala.concurrent.Await;
  78 import scala.concurrent.Future;
  79 import scala.concurrent.duration.FiniteDuration;
  80
  81 public class ShardManagerTest extends AbstractActorTest {
  82     private static int ID_COUNTER = 1;
  83
  84     private final String shardMrgIDSuffix = "config" + ID_COUNTER++;
  85     private final String shardMgrID = "shard-manager-" + shardMrgIDSuffix;
  86
  87     @Mock
  88     private static CountDownLatch ready;
  89
  90     private static TestActorRef<MessageCollectorActor> mockShardActor;
  91
  92     private static String mockShardName;
  93
  94     private final DatastoreContext.Builder datastoreContextBuilder = DatastoreContext.newBuilder().
  95             dataStoreType(shardMrgIDSuffix).shardInitializationTimeout(600, TimeUnit.MILLISECONDS)
  96                    .shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(6);
  97
  98     private static ActorRef newMockShardActor(ActorSystem system, String shardName, String memberName) {
  99         String name = new ShardIdentifier(shardName, memberName,"config").toString();
 100         return TestActorRef.create(system, Props.create(MessageCollectorActor.class), name);
 101     }
 102
 103     private final PrimaryShardInfoFutureCache primaryShardInfoCache = new PrimaryShardInfoFutureCache();
 104
 105     @Before
 106     public void setUp() {
 107         MockitoAnnotations.initMocks(this);
 108
 109         InMemoryJournal.clear();
 110
 111         if(mockShardActor == null) {
 112             mockShardName = new ShardIdentifier(Shard.DEFAULT_NAME, "member-1", "config").toString();
 113             mockShardActor = TestActorRef.create(getSystem(), Props.create(MessageCollectorActor.class), mockShardName);
 114         }
 115
 116         mockShardActor.underlyingActor().clear();
 117     }
 118
 119     @After
 120     public void tearDown() {
 121         InMemoryJournal.clear();
 122     }
 123
 124     private Props newShardMgrProps(boolean persistent) {
 125         return ShardManager.props(new MockClusterWrapper(), new MockConfiguration(),
 126                 datastoreContextBuilder.persistent(persistent).build(), ready, primaryShardInfoCache);
 127     }
 128
 129     private Props newPropsShardMgrWithMockShardActor() {
 130         return newPropsShardMgrWithMockShardActor("shardManager", mockShardActor, new MockClusterWrapper(),
 131                 new MockConfiguration());
 132     }
 133
 134     private Props newPropsShardMgrWithMockShardActor(final String name, final ActorRef shardActor,
 135             final ClusterWrapper clusterWrapper, final Configuration config) {
 136         Creator<ShardManager> creator = new Creator<ShardManager>() {
 137             private static final long serialVersionUID = 1L;
 138             @Override
 139             public ShardManager create() throws Exception {
 140                 return new ForwardingShardManager(clusterWrapper, config, datastoreContextBuilder.build(),
 141                         ready, name, shardActor, primaryShardInfoCache);
 142             }
 143         };
 144
 145         return Props.create(new DelegatingShardManagerCreator(creator)).withDispatcher(Dispatchers.DefaultDispatcherId());
 146     }
 147
 148     @Test
 149     public void testOnReceiveFindPrimaryForNonExistentShard() throws Exception {
 150         new JavaTestKit(getSystem()) {{
 151             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 152
 153             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 154
 155             shardManager.tell(new FindPrimary("non-existent", false), getRef());
 156
 157             expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class);
 158         }};
 159     }
 160
 161     @Test
 162     public void testOnReceiveFindPrimaryForLocalLeaderShard() throws Exception {
 163         new JavaTestKit(getSystem()) {{
 164             String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 165
 166             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 167
 168             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 169             shardManager.tell(new ActorInitialized(), mockShardActor);
 170
 171             DataTree mockDataTree = mock(DataTree.class);
 172             shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree),
 173                     DataStoreVersions.CURRENT_VERSION), getRef());
 174
 175             MessageCollectorActor.expectFirstMatching(mockShardActor, RegisterRoleChangeListener.class);
 176             shardManager.tell((new RoleChangeNotification(memberId, RaftState.Candidate.name(),
 177                     RaftState.Leader.name())), mockShardActor);
 178
 179             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 180
 181             LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 182             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 183                     primaryFound.getPrimaryPath().contains("member-1-shard-default"));
 184             assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree() );
 185         }};
 186     }
 187
 188     @Test
 189     public void testOnReceiveFindPrimaryForNonLocalLeaderShardBeforeMemberUp() throws Exception {
 190         new JavaTestKit(getSystem()) {{
 191             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 192
 193             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 194             shardManager.tell(new ActorInitialized(), mockShardActor);
 195
 196             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 197             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 198             shardManager.tell(new RoleChangeNotification(memberId1,
 199                     RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
 200             shardManager.tell(new LeaderStateChanged(memberId1, memberId2, DataStoreVersions.CURRENT_VERSION), mockShardActor);
 201
 202             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 203
 204             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 205         }};
 206     }
 207
 208     @Test
 209     public void testOnReceiveFindPrimaryForNonLocalLeaderShard() throws Exception {
 210         new JavaTestKit(getSystem()) {{
 211             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 212
 213             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 214             shardManager.tell(new ActorInitialized(), mockShardActor);
 215
 216             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 217             MockClusterWrapper.sendMemberUp(shardManager, "member-2", getRef().path().toString());
 218
 219             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 220             shardManager.tell(new RoleChangeNotification(memberId1,
 221                     RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
 222             short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
 223             shardManager.tell(new ShardLeaderStateChanged(memberId1, memberId2, Optional.<DataTree>absent(),
 224                     leaderVersion), mockShardActor);
 225
 226             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 227
 228             RemotePrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 229             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 230                     primaryFound.getPrimaryPath().contains("member-2-shard-default"));
 231             assertEquals("getPrimaryVersion", leaderVersion, primaryFound.getPrimaryVersion());
 232         }};
 233     }
 234
 235     @Test
 236     public void testOnReceiveFindPrimaryForUninitializedShard() throws Exception {
 237         new JavaTestKit(getSystem()) {{
 238             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 239
 240             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 241
 242             expectMsgClass(duration("5 seconds"), NotInitializedException.class);
 243         }};
 244     }
 245
 246     @Test
 247     public void testOnReceiveFindPrimaryForInitializedShardWithNoRole() throws Exception {
 248         new JavaTestKit(getSystem()) {{
 249             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 250
 251             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 252             shardManager.tell(new ActorInitialized(), mockShardActor);
 253
 254             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 255
 256             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 257         }};
 258     }
 259
 260     @Test
 261     public void testOnReceiveFindPrimaryForFollowerShardWithNoInitialLeaderId() throws Exception {
 262         new JavaTestKit(getSystem()) {{
 263             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 264
 265             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 266             shardManager.tell(new ActorInitialized(), mockShardActor);
 267
 268             String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 269             shardManager.tell(new RoleChangeNotification(memberId,
 270                     RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
 271
 272             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 273
 274             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 275
 276             DataTree mockDataTree = mock(DataTree.class);
 277             shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree),
 278                     DataStoreVersions.CURRENT_VERSION), mockShardActor);
 279
 280             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef());
 281
 282             LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 283             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 284                     primaryFound.getPrimaryPath().contains("member-1-shard-default"));
 285             assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree() );
 286         }};
 287     }
 288
 289     @Test
 290     public void testOnReceiveFindPrimaryWaitForShardLeader() throws Exception {
 291         new JavaTestKit(getSystem()) {{
 292             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 293
 294             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 295
 296             // We're passing waitUntilInitialized = true to FindPrimary so the response should be
 297             // delayed until we send ActorInitialized and RoleChangeNotification.
 298             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 299
 300             expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS));
 301
 302             shardManager.tell(new ActorInitialized(), mockShardActor);
 303
 304             expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS));
 305
 306             String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 307             shardManager.tell(new RoleChangeNotification(memberId,
 308                     RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor);
 309
 310             expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS));
 311
 312             DataTree mockDataTree = mock(DataTree.class);
 313             shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree),
 314                     DataStoreVersions.CURRENT_VERSION), mockShardActor);
 315
 316             LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 317             assertTrue("Unexpected primary path " +  primaryFound.getPrimaryPath(),
 318                     primaryFound.getPrimaryPath().contains("member-1-shard-default"));
 319             assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree() );
 320
 321             expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS));
 322         }};
 323     }
 324
 325     @Test
 326     public void testOnReceiveFindPrimaryWaitForReadyWithUninitializedShard() throws Exception {
 327         new JavaTestKit(getSystem()) {{
 328             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 329
 330             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 331
 332             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 333
 334             expectMsgClass(duration("2 seconds"), NotInitializedException.class);
 335
 336             shardManager.tell(new ActorInitialized(), mockShardActor);
 337
 338             expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS));
 339         }};
 340     }
 341
 342     @Test
 343     public void testOnReceiveFindPrimaryWaitForReadyWithCandidateShard() throws Exception {
 344         new JavaTestKit(getSystem()) {{
 345             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 346
 347             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 348             shardManager.tell(new ActorInitialized(), mockShardActor);
 349             shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix,
 350                     null, RaftState.Candidate.name()), mockShardActor);
 351
 352             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 353
 354             expectMsgClass(duration("2 seconds"), NoShardLeaderException.class);
 355         }};
 356     }
 357
 358     @Test
 359     public void testOnReceiveFindPrimaryWaitForReadyWithIsolatedLeaderShard() throws Exception {
 360         new JavaTestKit(getSystem()) {{
 361             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 362
 363             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 364             shardManager.tell(new ActorInitialized(), mockShardActor);
 365             shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix,
 366                     null, RaftState.IsolatedLeader.name()), mockShardActor);
 367
 368             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 369
 370             expectMsgClass(duration("2 seconds"), NoShardLeaderException.class);
 371         }};
 372     }
 373
 374     @Test
 375     public void testOnReceiveFindPrimaryWaitForReadyWithNoRoleShard() throws Exception {
 376         new JavaTestKit(getSystem()) {{
 377             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 378
 379             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 380             shardManager.tell(new ActorInitialized(), mockShardActor);
 381
 382             shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
 383
 384             expectMsgClass(duration("2 seconds"), NoShardLeaderException.class);
 385         }};
 386     }
 387
 388     @Test
 389     public void testOnReceiveFindPrimaryForRemoteShard() throws Exception {
 390         String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
 391
 392         // Create an ActorSystem ShardManager actor for member-1.
 393
 394         final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 395         Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 396
 397         ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
 398
 399         final TestActorRef<ForwardingShardManager> shardManager1 = TestActorRef.create(system1,
 400                 newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1),
 401                         new MockConfiguration()), shardManagerID);
 402
 403         // Create an ActorSystem ShardManager actor for member-2.
 404
 405         final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
 406
 407         Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 408
 409         final ActorRef mockShardActor2 = newMockShardActor(system2, "astronauts", "member-2");
 410
 411         MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
 412                 put("default", Arrays.asList("member-1", "member-2")).
 413                 put("astronauts", Arrays.asList("member-2")).build());
 414
 415         final TestActorRef<ForwardingShardManager> shardManager2 = TestActorRef.create(system2,
 416                 newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2),
 417                         mockConfig2), shardManagerID);
 418
 419         new JavaTestKit(system1) {{
 420
 421             shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 422             shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 423
 424             shardManager2.tell(new ActorInitialized(), mockShardActor2);
 425
 426             String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix;
 427             short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
 428             shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2,
 429                     Optional.of(mock(DataTree.class)), leaderVersion), mockShardActor2);
 430             shardManager2.tell(new RoleChangeNotification(memberId2,
 431                     RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2);
 432
 433             shardManager1.underlyingActor().waitForMemberUp();
 434
 435             shardManager1.tell(new FindPrimary("astronauts", false), getRef());
 436
 437             RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 438             String path = found.getPrimaryPath();
 439             assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-astronauts-config"));
 440             assertEquals("getPrimaryVersion", leaderVersion, found.getPrimaryVersion());
 441
 442             shardManager2.underlyingActor().verifyFindPrimary();
 443
 444             Cluster.get(system2).down(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 445
 446             shardManager1.underlyingActor().waitForMemberRemoved();
 447
 448             shardManager1.tell(new FindPrimary("astronauts", false), getRef());
 449
 450             expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class);
 451         }};
 452
 453         JavaTestKit.shutdownActorSystem(system1);
 454         JavaTestKit.shutdownActorSystem(system2);
 455     }
 456
 457     @Test
 458     public void testShardAvailabilityOnChangeOfMemberReachability() throws Exception {
 459         String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
 460
 461         // Create an ActorSystem ShardManager actor for member-1.
 462
 463         final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 464         Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 465
 466         final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
 467
 468         final TestActorRef<ForwardingShardManager> shardManager1 = TestActorRef.create(system1,
 469             newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1),
 470                 new MockConfiguration()), shardManagerID);
 471
 472         // Create an ActorSystem ShardManager actor for member-2.
 473
 474         final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
 475
 476         Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 477
 478         final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2");
 479
 480         MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
 481             put("default", Arrays.asList("member-1", "member-2")).build());
 482
 483         final TestActorRef<ForwardingShardManager> shardManager2 = TestActorRef.create(system2,
 484             newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2),
 485                 mockConfig2), shardManagerID);
 486
 487         new JavaTestKit(system1) {{
 488
 489             shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 490             shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 491             shardManager1.tell(new ActorInitialized(), mockShardActor1);
 492             shardManager2.tell(new ActorInitialized(), mockShardActor2);
 493
 494             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 495             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 496             shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId2,
 497                 Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION), mockShardActor1);
 498             shardManager1.tell(new RoleChangeNotification(memberId1,
 499                 RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor1);
 500             shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, Optional.of(mock(DataTree.class)),
 501                     DataStoreVersions.CURRENT_VERSION),
 502                 mockShardActor2);
 503             shardManager2.tell(new RoleChangeNotification(memberId2,
 504                 RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2);
 505             shardManager1.underlyingActor().waitForMemberUp();
 506
 507             shardManager1.tell(new FindPrimary("default", true), getRef());
 508
 509             RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 510             String path = found.getPrimaryPath();
 511             assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-default-config"));
 512
 513             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 514                 createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 515
 516             shardManager1.underlyingActor().waitForUnreachableMember();
 517
 518             PeerDown peerDown = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class);
 519             assertEquals("getMemberName", "member-2", peerDown.getMemberName());
 520             MessageCollectorActor.clearMessages(mockShardActor1);
 521
 522             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 523                     createMemberRemoved("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 524
 525             MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class);
 526
 527             shardManager1.tell(new FindPrimary("default", true), getRef());
 528
 529             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 530
 531             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 532                 createReachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 533
 534             shardManager1.underlyingActor().waitForReachableMember();
 535
 536             PeerUp peerUp = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class);
 537             assertEquals("getMemberName", "member-2", peerUp.getMemberName());
 538             MessageCollectorActor.clearMessages(mockShardActor1);
 539
 540             shardManager1.tell(new FindPrimary("default", true), getRef());
 541
 542             RemotePrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 543             String path1 = found1.getPrimaryPath();
 544             assertTrue("Unexpected primary path " + path1, path1.contains("member-2-shard-default-config"));
 545
 546             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 547                     createMemberUp("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 548
 549             MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class);
 550
 551         }};
 552
 553         JavaTestKit.shutdownActorSystem(system1);
 554         JavaTestKit.shutdownActorSystem(system2);
 555     }
 556
 557     @Test
 558     public void testShardAvailabilityChangeOnMemberUnreachableAndLeadershipChange() throws Exception {
 559         String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
 560
 561         // Create an ActorSystem ShardManager actor for member-1.
 562
 563         final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 564         Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 565
 566         final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
 567
 568         final TestActorRef<ForwardingShardManager> shardManager1 = TestActorRef.create(system1,
 569             newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1),
 570                 new MockConfiguration()), shardManagerID);
 571
 572         // Create an ActorSystem ShardManager actor for member-2.
 573
 574         final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
 575
 576         Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
 577
 578         final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2");
 579
 580         MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
 581             put("default", Arrays.asList("member-1", "member-2")).build());
 582
 583         final TestActorRef<ForwardingShardManager> shardManager2 = TestActorRef.create(system2,
 584             newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2),
 585                 mockConfig2), shardManagerID);
 586
 587         new JavaTestKit(system1) {{
 588
 589             shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 590             shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 591             shardManager1.tell(new ActorInitialized(), mockShardActor1);
 592             shardManager2.tell(new ActorInitialized(), mockShardActor2);
 593
 594             String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
 595             String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
 596             shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId2,
 597                 Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION), mockShardActor1);
 598             shardManager1.tell(new RoleChangeNotification(memberId1,
 599                 RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor1);
 600             shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, Optional.of(mock(DataTree.class)),
 601                     DataStoreVersions.CURRENT_VERSION),
 602                 mockShardActor2);
 603             shardManager2.tell(new RoleChangeNotification(memberId2,
 604                 RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2);
 605             shardManager1.underlyingActor().waitForMemberUp();
 606
 607             shardManager1.tell(new FindPrimary("default", true), getRef());
 608
 609             RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
 610             String path = found.getPrimaryPath();
 611             assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-default-config"));
 612
 613             primaryShardInfoCache.putSuccessful("default", new PrimaryShardInfo(system1.actorSelection(
 614                     mockShardActor1.path()), DataStoreVersions.CURRENT_VERSION, Optional.<DataTree>absent()));
 615
 616             shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
 617                 createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
 618
 619             shardManager1.underlyingActor().waitForUnreachableMember();
 620
 621             shardManager1.tell(new FindPrimary("default", true), getRef());
 622
 623             expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
 624
 625             assertNull("Expected primaryShardInfoCache entry removed", primaryShardInfoCache.getIfPresent("default"));
 626
 627             shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId1, Optional.of(mock(DataTree.class)),
 628                     DataStoreVersions.CURRENT_VERSION), mockShardActor1);
 629             shardManager1.tell(new RoleChangeNotification(memberId1,
 630                 RaftState.Follower.name(), RaftState.Leader.name()), mockShardActor1);
 631
 632             shardManager1.tell(new FindPrimary("default", true), getRef());
 633
 634             LocalPrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
 635             String path1 = found1.getPrimaryPath();
 636             assertTrue("Unexpected primary path " + path1, path1.contains("member-1-shard-default-config"));
 637
 638         }};
 639
 640         JavaTestKit.shutdownActorSystem(system1);
 641         JavaTestKit.shutdownActorSystem(system2);
 642     }
 643
 644
 645     @Test
 646     public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception {
 647         new JavaTestKit(getSystem()) {{
 648             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 649
 650             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 651
 652             shardManager.tell(new FindLocalShard("non-existent", false), getRef());
 653
 654             LocalShardNotFound notFound = expectMsgClass(duration("5 seconds"), LocalShardNotFound.class);
 655
 656             assertEquals("getShardName", "non-existent", notFound.getShardName());
 657         }};
 658     }
 659
 660     @Test
 661     public void testOnReceiveFindLocalShardForExistentShard() throws Exception {
 662         new JavaTestKit(getSystem()) {{
 663             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 664
 665             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 666             shardManager.tell(new ActorInitialized(), mockShardActor);
 667
 668             shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
 669
 670             LocalShardFound found = expectMsgClass(duration("5 seconds"), LocalShardFound.class);
 671
 672             assertTrue("Found path contains " + found.getPath().path().toString(),
 673                     found.getPath().path().toString().contains("member-1-shard-default-config"));
 674         }};
 675     }
 676
 677     @Test
 678     public void testOnReceiveFindLocalShardForNotInitializedShard() throws Exception {
 679         new JavaTestKit(getSystem()) {{
 680             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 681
 682             shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
 683
 684             expectMsgClass(duration("5 seconds"), NotInitializedException.class);
 685         }};
 686     }
 687
 688     @Test
 689     public void testOnReceiveFindLocalShardWaitForShardInitialized() throws Exception {
 690         new JavaTestKit(getSystem()) {{
 691             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 692
 693             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 694
 695             // We're passing waitUntilInitialized = true to FindLocalShard so the response should be
 696             // delayed until we send ActorInitialized.
 697             Future<Object> future = Patterns.ask(shardManager, new FindLocalShard(Shard.DEFAULT_NAME, true),
 698                     new Timeout(5, TimeUnit.SECONDS));
 699
 700             shardManager.tell(new ActorInitialized(), mockShardActor);
 701
 702             Object resp = Await.result(future, duration("5 seconds"));
 703             assertTrue("Expected: LocalShardFound, Actual: " + resp, resp instanceof LocalShardFound);
 704         }};
 705     }
 706
 707     @Test
 708     public void testOnRecoveryJournalIsCleaned() {
 709         InMemoryJournal.addEntry(shardMgrID, 1L, new ShardManager.SchemaContextModules(
 710                 ImmutableSet.of("foo")));
 711         InMemoryJournal.addEntry(shardMgrID, 2L, new ShardManager.SchemaContextModules(
 712                 ImmutableSet.of("bar")));
 713         InMemoryJournal.addDeleteMessagesCompleteLatch(shardMgrID);
 714
 715         new JavaTestKit(getSystem()) {{
 716             TestActorRef<TestShardManager> shardManager = TestActorRef.create(getSystem(),
 717                     Props.create(new TestShardManagerCreator(shardMrgIDSuffix)));
 718
 719             shardManager.underlyingActor().waitForRecoveryComplete();
 720             InMemoryJournal.waitForDeleteMessagesComplete(shardMgrID);
 721
 722             // Journal entries up to the last one should've been deleted
 723             Map<Long, Object> journal = InMemoryJournal.get(shardMgrID);
 724             synchronized (journal) {
 725                 assertEquals("Journal size", 0, journal.size());
 726             }
 727         }};
 728     }
 729
 730     @Test
 731     public void testRoleChangeNotificationAndShardLeaderStateChangedReleaseReady() throws Exception {
 732         new JavaTestKit(getSystem()) {
 733             {
 734                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 735
 736                 String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 737                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 738                         memberId, RaftState.Candidate.name(), RaftState.Leader.name()));
 739
 740                 verify(ready, never()).countDown();
 741
 742                 shardManager.underlyingActor().onReceiveCommand(new ShardLeaderStateChanged(memberId, memberId,
 743                         Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION));
 744
 745                 verify(ready, times(1)).countDown();
 746
 747             }};
 748     }
 749
 750     @Test
 751     public void testRoleChangeNotificationToFollowerWithShardLeaderStateChangedReleaseReady() throws Exception {
 752         new JavaTestKit(getSystem()) {
 753             {
 754                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 755
 756                 String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 757                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 758                         memberId, null, RaftState.Follower.name()));
 759
 760                 verify(ready, never()).countDown();
 761
 762                 shardManager.underlyingActor().onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
 763
 764                 shardManager.underlyingActor().onReceiveCommand(new ShardLeaderStateChanged(memberId,
 765                         "member-2-shard-default-" + shardMrgIDSuffix, Optional.of(mock(DataTree.class)),
 766                         DataStoreVersions.CURRENT_VERSION));
 767
 768                 verify(ready, times(1)).countDown();
 769
 770             }};
 771     }
 772
 773     @Test
 774     public void testReadyCountDownForMemberUpAfterLeaderStateChanged() throws Exception {
 775         new JavaTestKit(getSystem()) {
 776             {
 777                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 778
 779                 String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
 780                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 781                         memberId, null, RaftState.Follower.name()));
 782
 783                 verify(ready, never()).countDown();
 784
 785                 shardManager.underlyingActor().onReceiveCommand(new ShardLeaderStateChanged(memberId,
 786                         "member-2-shard-default-" + shardMrgIDSuffix, Optional.of(mock(DataTree.class)),
 787                         DataStoreVersions.CURRENT_VERSION));
 788
 789                 shardManager.underlyingActor().onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
 790
 791                 verify(ready, times(1)).countDown();
 792
 793             }};
 794     }
 795
 796     @Test
 797     public void testRoleChangeNotificationDoNothingForUnknownShard() throws Exception {
 798         new JavaTestKit(getSystem()) {
 799             {
 800                 TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
 801
 802                 shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
 803                         "unknown", RaftState.Candidate.name(), RaftState.Leader.name()));
 804
 805                 verify(ready, never()).countDown();
 806
 807             }};
 808     }
 809
 810
 811     @Test
 812     public void testByDefaultSyncStatusIsFalse() throws Exception{
 813         final Props persistentProps = newShardMgrProps(true);
 814         final TestActorRef<ShardManager> shardManager =
 815                 TestActorRef.create(getSystem(), persistentProps);
 816
 817         ShardManager shardManagerActor = shardManager.underlyingActor();
 818
 819         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 820     }
 821
 822     @Test
 823     public void testWhenShardIsLeaderSyncStatusIsTrue() throws Exception{
 824         final Props persistentProps = ShardManager.props(
 825                 new MockClusterWrapper(),
 826                 new MockConfiguration(),
 827                 DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
 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.Leader.name()));
 834
 835         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 836     }
 837
 838     @Test
 839     public void testWhenShardIsCandidateSyncStatusIsFalse() throws Exception{
 840         final Props persistentProps = newShardMgrProps(true);
 841         final TestActorRef<ShardManager> shardManager =
 842                 TestActorRef.create(getSystem(), persistentProps);
 843
 844         ShardManager shardManagerActor = shardManager.underlyingActor();
 845         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
 846                 RaftState.Follower.name(), RaftState.Candidate.name()));
 847
 848         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 849
 850         // Send a FollowerInitialSyncStatus with status = true for the replica whose current state is candidate
 851         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-default-unknown"));
 852
 853         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 854     }
 855
 856     @Test
 857     public void testWhenShardIsFollowerSyncStatusDependsOnFollowerInitialSyncStatus() throws Exception{
 858         final Props persistentProps = ShardManager.props(
 859                 new MockClusterWrapper(),
 860                 new MockConfiguration(),
 861                 DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
 862         final TestActorRef<ShardManager> shardManager =
 863                 TestActorRef.create(getSystem(), persistentProps);
 864
 865         ShardManager shardManagerActor = shardManager.underlyingActor();
 866         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
 867                 RaftState.Candidate.name(), RaftState.Follower.name()));
 868
 869         // Initially will be false
 870         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 871
 872         // Send status true will make sync status true
 873         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-default-unknown"));
 874
 875         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 876
 877         // Send status false will make sync status false
 878         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(false, "member-1-shard-default-unknown"));
 879
 880         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 881
 882     }
 883
 884     @Test
 885     public void testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards() throws Exception{
 886         final Props persistentProps = ShardManager.props(
 887                 new MockClusterWrapper(),
 888                 new MockConfiguration() {
 889                     @Override
 890                     public List<String> getMemberShardNames(String memberName) {
 891                         return Arrays.asList("default", "astronauts");
 892                     }
 893                 },
 894                 DatastoreContext.newBuilder().persistent(true).build(), ready, primaryShardInfoCache);
 895         final TestActorRef<ShardManager> shardManager =
 896                 TestActorRef.create(getSystem(), persistentProps);
 897
 898         ShardManager shardManagerActor = shardManager.underlyingActor();
 899
 900         // Initially will be false
 901         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 902
 903         // Make default shard leader
 904         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-unknown",
 905                 RaftState.Follower.name(), RaftState.Leader.name()));
 906
 907         // default = Leader, astronauts is unknown so sync status remains false
 908         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 909
 910         // Make astronauts shard leader as well
 911         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-astronauts-unknown",
 912                 RaftState.Follower.name(), RaftState.Leader.name()));
 913
 914         // Now sync status should be true
 915         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 916
 917         // Make astronauts a Follower
 918         shardManagerActor.onReceiveCommand(new RoleChangeNotification("member-1-shard-astronauts-unknown",
 919                 RaftState.Leader.name(), RaftState.Follower.name()));
 920
 921         // Sync status is not true
 922         assertEquals(false, shardManagerActor.getMBean().getSyncStatus());
 923
 924         // Make the astronauts follower sync status true
 925         shardManagerActor.onReceiveCommand(new FollowerInitialSyncUpStatus(true, "member-1-shard-astronauts-unknown"));
 926
 927         // Sync status is now true
 928         assertEquals(true, shardManagerActor.getMBean().getSyncStatus());
 929
 930     }
 931
 932     @Test
 933     public void testOnReceiveSwitchShardBehavior() throws Exception {
 934         new JavaTestKit(getSystem()) {{
 935             final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
 936
 937             shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
 938             shardManager.tell(new ActorInitialized(), mockShardActor);
 939
 940             shardManager.tell(new SwitchShardBehavior(mockShardName, "Leader", 1000), getRef());
 941
 942             SwitchBehavior switchBehavior = MessageCollectorActor.expectFirstMatching(mockShardActor, SwitchBehavior.class);
 943
 944             assertEquals(RaftState.Leader, switchBehavior.getNewState());
 945             assertEquals(1000, switchBehavior.getNewTerm());
 946         }};
 947     }
 948
 949     public void testOnReceiveCreateShard() {
 950         new JavaTestKit(getSystem()) {{
 951             datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true);
 952
 953             ActorRef shardManager = getSystem().actorOf(newShardMgrProps(false));
 954
 955             SchemaContext schemaContext = TestModel.createTestContext();
 956             shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
 957
 958             DatastoreContext datastoreContext = DatastoreContext.newBuilder().shardElectionTimeoutFactor(100).
 959                     persistent(false).build();
 960             TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
 961
 962             shardManager.tell(new CreateShard("foo", Arrays.asList("member-1", "member-5", "member-6"), shardPropsCreator,
 963                     datastoreContext), getRef());
 964
 965             expectMsgClass(duration("5 seconds"), CreateShardReply.class);
 966
 967             shardManager.tell(new FindLocalShard("foo", true), getRef());
 968
 969             expectMsgClass(duration("5 seconds"), LocalShardFound.class);
 970
 971             assertEquals("isRecoveryApplicable", false, shardPropsCreator.datastoreContext.isPersistent());
 972             assertEquals("peerMembers", Sets.newHashSet(new ShardIdentifier("foo", "member-5", shardMrgIDSuffix).toString(),
 973                     new ShardIdentifier("foo", "member-6", shardMrgIDSuffix).toString()),
 974                     shardPropsCreator.peerAddresses.keySet());
 975             assertEquals("ShardIdentifier", new ShardIdentifier("foo", "member-1", shardMrgIDSuffix),
 976                     shardPropsCreator.shardId);
 977             assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
 978
 979             // Send CreateShard with same name - should fail.
 980
 981             shardManager.tell(new CreateShard("foo", Collections.<String>emptyList(), shardPropsCreator, null), getRef());
 982
 983             expectMsgClass(duration("5 seconds"), akka.actor.Status.Failure.class);
 984         }};
 985     }
 986
 987     @Test
 988     public void testOnReceiveCreateShardWithNoInitialSchemaContext() {
 989         new JavaTestKit(getSystem()) {{
 990             ActorRef shardManager = getSystem().actorOf(newShardMgrProps(false));
 991
 992             TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
 993
 994             shardManager.tell(new CreateShard("foo", Arrays.asList("member-1"), shardPropsCreator, null), getRef());
 995
 996             expectMsgClass(duration("5 seconds"), CreateShardReply.class);
 997
 998             SchemaContext schemaContext = TestModel.createTestContext();
 999             shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
1000
1001             shardManager.tell(new FindLocalShard("foo", true), getRef());
1002
1003             expectMsgClass(duration("5 seconds"), LocalShardFound.class);
1004
1005             assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
1006             assertNotNull("schemaContext is null", shardPropsCreator.datastoreContext);
1007         }};
1008     }
1009
1010     private static class TestShardPropsCreator implements ShardPropsCreator {
1011         ShardIdentifier shardId;
1012         Map<String, String> peerAddresses;
1013         SchemaContext schemaContext;
1014         DatastoreContext datastoreContext;
1015
1016         @Override
1017         public Props newProps(ShardIdentifier shardId, Map<String, String> peerAddresses,
1018                 DatastoreContext datastoreContext, SchemaContext schemaContext) {
1019             this.shardId = shardId;
1020             this.peerAddresses = peerAddresses;
1021             this.schemaContext = schemaContext;
1022             this.datastoreContext = datastoreContext;
1023             return Shard.props(shardId, peerAddresses, datastoreContext, schemaContext);
1024         }
1025
1026     }
1027
1028     private static class TestShardManager extends ShardManager {
1029         private final CountDownLatch recoveryComplete = new CountDownLatch(1);
1030
1031         TestShardManager(String shardMrgIDSuffix) {
1032             super(new MockClusterWrapper(), new MockConfiguration(),
1033                     DatastoreContext.newBuilder().dataStoreType(shardMrgIDSuffix).build(), ready,
1034                     new PrimaryShardInfoFutureCache());
1035         }
1036
1037         @Override
1038         public void handleRecover(Object message) throws Exception {
1039             try {
1040                 super.handleRecover(message);
1041             } finally {
1042                 if(message instanceof RecoveryCompleted) {
1043                     recoveryComplete.countDown();
1044                 }
1045             }
1046         }
1047
1048         void waitForRecoveryComplete() {
1049             assertEquals("Recovery complete", true,
1050                     Uninterruptibles.awaitUninterruptibly(recoveryComplete, 5, TimeUnit.SECONDS));
1051         }
1052     }
1053
1054     @SuppressWarnings("serial")
1055     static class TestShardManagerCreator implements Creator<TestShardManager> {
1056         String shardMrgIDSuffix;
1057
1058         TestShardManagerCreator(String shardMrgIDSuffix) {
1059             this.shardMrgIDSuffix = shardMrgIDSuffix;
1060         }
1061
1062         @Override
1063         public TestShardManager create() throws Exception {
1064             return new TestShardManager(shardMrgIDSuffix);
1065         }
1066
1067     }
1068
1069     private static class DelegatingShardManagerCreator implements Creator<ShardManager> {
1070         private static final long serialVersionUID = 1L;
1071         private final Creator<ShardManager> delegate;
1072
1073         public DelegatingShardManagerCreator(Creator<ShardManager> delegate) {
1074             this.delegate = delegate;
1075         }
1076
1077         @Override
1078         public ShardManager create() throws Exception {
1079             return delegate.create();
1080         }
1081     }
1082
1083     private static class ForwardingShardManager extends ShardManager {
1084         private CountDownLatch findPrimaryMessageReceived = new CountDownLatch(1);
1085         private CountDownLatch memberUpReceived = new CountDownLatch(1);
1086         private CountDownLatch memberRemovedReceived = new CountDownLatch(1);
1087         private CountDownLatch memberUnreachableReceived = new CountDownLatch(1);
1088         private CountDownLatch memberReachableReceived = new CountDownLatch(1);
1089         private final ActorRef shardActor;
1090         private final String name;
1091
1092         protected ForwardingShardManager(ClusterWrapper cluster, Configuration configuration,
1093                 DatastoreContext datastoreContext, CountDownLatch waitTillReadyCountdownLatch, String name,
1094                 ActorRef shardActor, PrimaryShardInfoFutureCache primaryShardInfoCache) {
1095             super(cluster, configuration, datastoreContext, waitTillReadyCountdownLatch, primaryShardInfoCache);
1096             this.shardActor = shardActor;
1097             this.name = name;
1098         }
1099
1100         @Override
1101         public void handleCommand(Object message) throws Exception {
1102             try{
1103                 super.handleCommand(message);
1104             } finally {
1105                 if(message instanceof FindPrimary) {
1106                     findPrimaryMessageReceived.countDown();
1107                 } else if(message instanceof ClusterEvent.MemberUp) {
1108                     String role = ((ClusterEvent.MemberUp)message).member().roles().head();
1109                     if(!getCluster().getCurrentMemberName().equals(role)) {
1110                         memberUpReceived.countDown();
1111                     }
1112                 } else if(message instanceof ClusterEvent.MemberRemoved) {
1113                     String role = ((ClusterEvent.MemberRemoved)message).member().roles().head();
1114                     if(!getCluster().getCurrentMemberName().equals(role)) {
1115                         memberRemovedReceived.countDown();
1116                     }
1117                 } else if(message instanceof ClusterEvent.UnreachableMember) {
1118                     String role = ((ClusterEvent.UnreachableMember)message).member().roles().head();
1119                     if(!getCluster().getCurrentMemberName().equals(role)) {
1120                         memberUnreachableReceived.countDown();
1121                     }
1122                 } else if(message instanceof ClusterEvent.ReachableMember) {
1123                     String role = ((ClusterEvent.ReachableMember)message).member().roles().head();
1124                     if(!getCluster().getCurrentMemberName().equals(role)) {
1125                         memberReachableReceived.countDown();
1126                     }
1127                 }
1128             }
1129         }
1130
1131         @Override
1132         public String persistenceId() {
1133             return name;
1134         }
1135
1136         @Override
1137         protected ActorRef newShardActor(SchemaContext schemaContext, ShardInformation info) {
1138             return shardActor;
1139         }
1140
1141         void waitForMemberUp() {
1142             assertEquals("MemberUp received", true,
1143                     Uninterruptibles.awaitUninterruptibly(memberUpReceived, 5, TimeUnit.SECONDS));
1144             memberUpReceived = new CountDownLatch(1);
1145         }
1146
1147         void waitForMemberRemoved() {
1148             assertEquals("MemberRemoved received", true,
1149                     Uninterruptibles.awaitUninterruptibly(memberRemovedReceived, 5, TimeUnit.SECONDS));
1150             memberRemovedReceived = new CountDownLatch(1);
1151         }
1152
1153         void waitForUnreachableMember() {
1154             assertEquals("UnreachableMember received", true,
1155                 Uninterruptibles.awaitUninterruptibly(memberUnreachableReceived, 5, TimeUnit.SECONDS
1156                 ));
1157             memberUnreachableReceived = new CountDownLatch(1);
1158         }
1159
1160         void waitForReachableMember() {
1161             assertEquals("ReachableMember received", true,
1162                 Uninterruptibles.awaitUninterruptibly(memberReachableReceived, 5, TimeUnit.SECONDS));
1163             memberReachableReceived = new CountDownLatch(1);
1164         }
1165
1166         void verifyFindPrimary() {
1167             assertEquals("FindPrimary received", true,
1168                     Uninterruptibles.awaitUninterruptibly(findPrimaryMessageReceived, 5, TimeUnit.SECONDS));
1169             findPrimaryMessageReceived = new CountDownLatch(1);
1170         }
1171     }
1172 }