+ new JavaTestKit(system1) {{
+ shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager1.tell(new ActorInitialized(), mockShardActor1);
+ shardManager2.tell(new ActorInitialized(), mockShardActor2);
+
+ String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
+ String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId2,
+ Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION), mockShardActor1);
+ shardManager1.tell(new RoleChangeNotification(memberId1,
+ RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor1);
+ shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, Optional.of(mock(DataTree.class)),
+ DataStoreVersions.CURRENT_VERSION),
+ mockShardActor2);
+ shardManager2.tell(new RoleChangeNotification(memberId2,
+ RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2);
+ shardManager1.underlyingActor().waitForMemberUp();
+
+ shardManager1.tell(new FindPrimary("default", true), getRef());
+
+ RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
+ String path = found.getPrimaryPath();
+ assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-default-config"));
+
+ primaryShardInfoCache.putSuccessful("default", new PrimaryShardInfo(system1.actorSelection(
+ mockShardActor1.path()), DataStoreVersions.CURRENT_VERSION, Optional.<DataTree>absent()));
+
+ shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
+ createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
+
+ shardManager1.underlyingActor().waitForUnreachableMember();
+
+ shardManager1.tell(new FindPrimary("default", true), getRef());
+
+ expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
+
+ assertNull("Expected primaryShardInfoCache entry removed", primaryShardInfoCache.getIfPresent("default"));
+
+ shardManager1.tell(new ShardLeaderStateChanged(memberId1, memberId1, Optional.of(mock(DataTree.class)),
+ DataStoreVersions.CURRENT_VERSION), mockShardActor1);
+ shardManager1.tell(new RoleChangeNotification(memberId1,
+ RaftState.Follower.name(), RaftState.Leader.name()), mockShardActor1);
+
+ shardManager1.tell(new FindPrimary("default", true), getRef());
+
+ LocalPrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class);
+ String path1 = found1.getPrimaryPath();
+ assertTrue("Unexpected primary path " + path1, path1.contains("member-1-shard-default-config"));
+
+ }};
+
+ LOG.info("testShardAvailabilityChangeOnMemberUnreachableAndLeadershipChange ending");
+ }
+
+
+ @Test
+ public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ shardManager.tell(new FindLocalShard("non-existent", false), getRef());
+
+ LocalShardNotFound notFound = expectMsgClass(duration("5 seconds"), LocalShardNotFound.class);
+
+ assertEquals("getShardName", "non-existent", notFound.getShardName());
+ }};
+ }
+
+ @Test
+ public void testOnReceiveFindLocalShardForExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+
+ shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
+
+ LocalShardFound found = expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+
+ assertTrue("Found path contains " + found.getPath().path().toString(),
+ found.getPath().path().toString().contains("member-1-shard-default-config"));
+ }};
+ }
+
+ @Test
+ public void testOnReceiveFindLocalShardForNotInitializedShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
+
+ expectMsgClass(duration("5 seconds"), NotInitializedException.class);
+ }};
+ }
+
+ @Test
+ public void testOnReceiveFindLocalShardWaitForShardInitialized() throws Exception {
+ LOG.info("testOnReceiveFindLocalShardWaitForShardInitialized starting");
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ // We're passing waitUntilInitialized = true to FindLocalShard so the response should be
+ // delayed until we send ActorInitialized.
+ Future<Object> future = Patterns.ask(shardManager, new FindLocalShard(Shard.DEFAULT_NAME, true),
+ new Timeout(5, TimeUnit.SECONDS));
+
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+
+ Object resp = Await.result(future, duration("5 seconds"));
+ assertTrue("Expected: LocalShardFound, Actual: " + resp, resp instanceof LocalShardFound);
+ }};
+
+ LOG.info("testOnReceiveFindLocalShardWaitForShardInitialized starting");
+ }
+
+ @Test
+ public void testOnRecoveryJournalIsCleaned() {
+ String persistenceID = "shard-manager-" + shardMrgIDSuffix;
+ InMemoryJournal.addEntry(persistenceID, 1L, new ShardManager.SchemaContextModules(
+ ImmutableSet.of("foo")));
+ InMemoryJournal.addEntry(persistenceID, 2L, new ShardManager.SchemaContextModules(
+ ImmutableSet.of("bar")));
+ InMemoryJournal.addDeleteMessagesCompleteLatch(persistenceID);
+
+ TestShardManager shardManager = newTestShardManager();
+
+ InMemoryJournal.waitForDeleteMessagesComplete(persistenceID);
+
+ // Journal entries up to the last one should've been deleted
+ Map<Long, Object> journal = InMemoryJournal.get(persistenceID);
+ synchronized (journal) {
+ assertEquals("Journal size", 0, journal.size());
+ }
+ }
+
+ @Test
+ public void testRoleChangeNotificationAndShardLeaderStateChangedReleaseReady() throws Exception {
+ TestShardManager shardManager = newTestShardManager();
+
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.onReceiveCommand(new RoleChangeNotification(
+ memberId, RaftState.Candidate.name(), RaftState.Leader.name()));
+
+ verify(ready, never()).countDown();
+
+ shardManager.onReceiveCommand(new ShardLeaderStateChanged(memberId, memberId,
+ Optional.of(mock(DataTree.class)), DataStoreVersions.CURRENT_VERSION));
+
+ verify(ready, times(1)).countDown();
+ }
+
+ @Test
+ public void testRoleChangeNotificationToFollowerWithShardLeaderStateChangedReleaseReady() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ TestShardManager shardManager = newTestShardManager();
+
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.onReceiveCommand(new RoleChangeNotification(
+ memberId, null, RaftState.Follower.name()));
+
+ verify(ready, never()).countDown();
+
+ shardManager.onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
+
+ shardManager.onReceiveCommand(new ShardLeaderStateChanged(memberId,
+ "member-2-shard-default-" + shardMrgIDSuffix, Optional.of(mock(DataTree.class)),
+ DataStoreVersions.CURRENT_VERSION));
+
+ verify(ready, times(1)).countDown();
+ }};
+ }
+
+ @Test
+ public void testReadyCountDownForMemberUpAfterLeaderStateChanged() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ TestShardManager shardManager = newTestShardManager();
+
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.onReceiveCommand(new RoleChangeNotification(memberId, null, RaftState.Follower.name()));
+
+ verify(ready, never()).countDown();
+
+ shardManager.onReceiveCommand(new ShardLeaderStateChanged(memberId,
+ "member-2-shard-default-" + shardMrgIDSuffix, Optional.of(mock(DataTree.class)),
+ DataStoreVersions.CURRENT_VERSION));
+
+ shardManager.onReceiveCommand(MockClusterWrapper.createMemberUp("member-2", getRef().path().toString()));
+
+ verify(ready, times(1)).countDown();
+ }};
+ }
+
+ @Test
+ public void testRoleChangeNotificationDoNothingForUnknownShard() throws Exception {
+ TestShardManager shardManager = newTestShardManager();
+
+ shardManager.onReceiveCommand(new RoleChangeNotification(
+ "unknown", RaftState.Candidate.name(), RaftState.Leader.name()));
+
+ verify(ready, never()).countDown();
+ }
+
+ @Test
+ public void testByDefaultSyncStatusIsFalse() throws Exception{
+ TestShardManager shardManager = newTestShardManager();
+
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+ }
+
+ @Test
+ public void testWhenShardIsLeaderSyncStatusIsTrue() throws Exception{
+ TestShardManager shardManager = newTestShardManager();
+
+ shardManager.onReceiveCommand(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix,
+ RaftState.Follower.name(), RaftState.Leader.name()));
+
+ assertEquals(true, shardManager.getMBean().getSyncStatus());
+ }
+
+ @Test
+ public void testWhenShardIsCandidateSyncStatusIsFalse() throws Exception{
+ TestShardManager shardManager = newTestShardManager();
+
+ String shardId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.onReceiveCommand(new RoleChangeNotification(shardId,
+ RaftState.Follower.name(), RaftState.Candidate.name()));
+
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+
+ // Send a FollowerInitialSyncStatus with status = true for the replica whose current state is candidate
+ shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(
+ true, shardId));
+
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+ }
+
+ @Test
+ public void testWhenShardIsFollowerSyncStatusDependsOnFollowerInitialSyncStatus() throws Exception{
+ TestShardManager shardManager = newTestShardManager();
+
+ String shardId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.onReceiveCommand(new RoleChangeNotification(shardId,
+ RaftState.Candidate.name(), RaftState.Follower.name()));
+
+ // Initially will be false
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+
+ // Send status true will make sync status true
+ shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(true, shardId));
+
+ assertEquals(true, shardManager.getMBean().getSyncStatus());
+
+ // Send status false will make sync status false
+ shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(false, shardId));
+
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+
+ }
+
+ @Test
+ public void testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards() throws Exception{
+ LOG.info("testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards starting");
+ TestShardManager shardManager = newTestShardManager(newShardMgrProps(new MockConfiguration() {
+ @Override
+ public List<String> getMemberShardNames(String memberName) {
+ return Arrays.asList("default", "astronauts");
+ }
+ }));
+
+ // Initially will be false
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+
+ // Make default shard leader
+ String defaultShardId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.onReceiveCommand(new RoleChangeNotification(defaultShardId,
+ RaftState.Follower.name(), RaftState.Leader.name()));
+
+ // default = Leader, astronauts is unknown so sync status remains false
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+
+ // Make astronauts shard leader as well
+ String astronautsShardId = "member-1-shard-astronauts-" + shardMrgIDSuffix;
+ shardManager.onReceiveCommand(new RoleChangeNotification(astronautsShardId,
+ RaftState.Follower.name(), RaftState.Leader.name()));
+
+ // Now sync status should be true
+ assertEquals(true, shardManager.getMBean().getSyncStatus());
+
+ // Make astronauts a Follower
+ shardManager.onReceiveCommand(new RoleChangeNotification(astronautsShardId,
+ RaftState.Leader.name(), RaftState.Follower.name()));
+
+ // Sync status is not true
+ assertEquals(false, shardManager.getMBean().getSyncStatus());
+
+ // Make the astronauts follower sync status true
+ shardManager.onReceiveCommand(new FollowerInitialSyncUpStatus(true, astronautsShardId));
+
+ // Sync status is now true
+ assertEquals(true, shardManager.getMBean().getSyncStatus());
+
+ LOG.info("testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards ending");
+ }
+
+ @Test
+ public void testOnReceiveSwitchShardBehavior() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+
+ shardManager.tell(new SwitchShardBehavior(mockShardName, "Leader", 1000), getRef());
+
+ SwitchBehavior switchBehavior = MessageCollectorActor.expectFirstMatching(mockShardActor, SwitchBehavior.class);
+
+ assertEquals(RaftState.Leader, switchBehavior.getNewState());
+ assertEquals(1000, switchBehavior.getNewTerm());
+ }};
+ }
+
+ @Test
+ public void testOnCreateShard() {
+ LOG.info("testOnCreateShard starting");
+ new JavaTestKit(getSystem()) {{
+ datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true);
+
+ ActorRef shardManager = actorFactory.createActor(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ SchemaContext schemaContext = TestModel.createTestContext();
+ shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
+
+ DatastoreContext datastoreContext = DatastoreContext.newBuilder().shardElectionTimeoutFactor(100).
+ persistent(false).build();
+ Shard.Builder shardBuilder = Shard.builder();
+
+ ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module",
+ "foo", null, Arrays.asList("member-1", "member-5", "member-6"));
+ shardManager.tell(new CreateShard(config, shardBuilder, datastoreContext), getRef());
+
+ expectMsgClass(duration("5 seconds"), Success.class);
+
+ shardManager.tell(new FindLocalShard("foo", true), getRef());
+
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+
+ assertEquals("isRecoveryApplicable", false, shardBuilder.getDatastoreContext().isPersistent());
+ assertTrue("Epxected ShardPeerAddressResolver", shardBuilder.getDatastoreContext().getShardRaftConfig().
+ getPeerAddressResolver() instanceof ShardPeerAddressResolver);
+ assertEquals("peerMembers", Sets.newHashSet(new ShardIdentifier("foo", "member-5", shardMrgIDSuffix).toString(),
+ new ShardIdentifier("foo", "member-6", shardMrgIDSuffix).toString()),
+ shardBuilder.getPeerAddresses().keySet());
+ assertEquals("ShardIdentifier", new ShardIdentifier("foo", "member-1", shardMrgIDSuffix),
+ shardBuilder.getId());
+ assertSame("schemaContext", schemaContext, shardBuilder.getSchemaContext());
+
+ // Send CreateShard with same name - should return Success with a message.
+
+ shardManager.tell(new CreateShard(config, shardBuilder, null), getRef());
+
+ Success success = expectMsgClass(duration("5 seconds"), Success.class);
+ assertNotNull("Success status is null", success.status());
+ }};
+
+ LOG.info("testOnCreateShard ending");
+ }
+
+ @Test
+ public void testOnCreateShardWithLocalMemberNotInShardConfig() {
+ LOG.info("testOnCreateShardWithLocalMemberNotInShardConfig starting");
+ new JavaTestKit(getSystem()) {{
+ datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true);
+
+ ActorRef shardManager = actorFactory.createActor(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender());
+
+ Shard.Builder shardBuilder = Shard.builder();
+ ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module",
+ "foo", null, Arrays.asList("member-5", "member-6"));
+
+ shardManager.tell(new CreateShard(config, shardBuilder, null), getRef());
+ expectMsgClass(duration("5 seconds"), Success.class);
+
+ shardManager.tell(new FindLocalShard("foo", true), getRef());
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+
+ assertEquals("peerMembers size", 0, shardBuilder.getPeerAddresses().size());
+ assertEquals("schemaContext", DisableElectionsRaftPolicy.class.getName(),
+ shardBuilder.getDatastoreContext().getShardRaftConfig().getCustomRaftPolicyImplementationClass());
+ }};
+
+ LOG.info("testOnCreateShardWithLocalMemberNotInShardConfig ending");
+ }
+
+ @Test
+ public void testOnCreateShardWithNoInitialSchemaContext() {
+ LOG.info("testOnCreateShardWithNoInitialSchemaContext starting");
+ new JavaTestKit(getSystem()) {{
+ ActorRef shardManager = actorFactory.createActor(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ Shard.Builder shardBuilder = Shard.builder();
+
+ ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module",
+ "foo", null, Arrays.asList("member-1"));
+ shardManager.tell(new CreateShard(config, shardBuilder, null), getRef());
+
+ expectMsgClass(duration("5 seconds"), Success.class);
+
+ SchemaContext schemaContext = TestModel.createTestContext();
+ shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
+
+ shardManager.tell(new FindLocalShard("foo", true), getRef());
+
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+
+ assertSame("schemaContext", schemaContext, shardBuilder.getSchemaContext());
+ assertNotNull("schemaContext is null", shardBuilder.getDatastoreContext());
+ }};
+
+ LOG.info("testOnCreateShardWithNoInitialSchemaContext ending");
+ }
+
+ @Test
+ public void testGetSnapshot() throws Throwable {
+ LOG.info("testGetSnapshot starting");
+ JavaTestKit kit = new JavaTestKit(getSystem());
+
+ MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("shard1", Arrays.asList("member-1")).
+ put("shard2", Arrays.asList("member-1")).
+ put("astronauts", Collections.<String>emptyList()).build());
+
+ TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor(newShardMgrProps(mockConfig).
+ withDispatcher(Dispatchers.DefaultDispatcherId()));
+
+ shardManager.tell(GetSnapshot.INSTANCE, kit.getRef());
+ Failure failure = kit.expectMsgClass(Failure.class);
+ assertEquals("Failure cause type", IllegalStateException.class, failure.cause().getClass());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender());
+
+ waitForShardInitialized(shardManager, "shard1", kit);
+ waitForShardInitialized(shardManager, "shard2", kit);
+
+ shardManager.tell(GetSnapshot.INSTANCE, kit.getRef());
+
+ DatastoreSnapshot datastoreSnapshot = expectMsgClassOrFailure(DatastoreSnapshot.class, kit, "GetSnapshot");
+
+ assertEquals("getType", shardMrgIDSuffix, datastoreSnapshot.getType());
+ assertNull("Expected null ShardManagerSnapshot", datastoreSnapshot.getShardManagerSnapshot());
+
+ Function<ShardSnapshot, String> shardNameTransformer = new Function<ShardSnapshot, String>() {
+ @Override
+ public String apply(ShardSnapshot s) {
+ return s.getName();
+ }
+ };
+
+ assertEquals("Shard names", Sets.newHashSet("shard1", "shard2"), Sets.newHashSet(
+ Lists.transform(datastoreSnapshot.getShardSnapshots(), shardNameTransformer)));
+
+ // Add a new replica
+
+ JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem());
+
+ TestShardManager shardManagerInstance = shardManager.underlyingActor();
+ shardManagerInstance.setMessageInterceptor(newFindPrimaryInterceptor(mockShardLeaderKit.getRef()));
+
+ shardManager.tell(new AddShardReplica("astronauts"), kit.getRef());
+ mockShardLeaderKit.expectMsgClass(AddServer.class);
+ mockShardLeaderKit.reply(new AddServerReply(ServerChangeStatus.OK, ""));
+ kit.expectMsgClass(Status.Success.class);
+ waitForShardInitialized(shardManager, "astronauts", kit);
+
+ // Send another GetSnapshot and verify
+
+ shardManager.tell(GetSnapshot.INSTANCE, kit.getRef());
+ datastoreSnapshot = expectMsgClassOrFailure(DatastoreSnapshot.class, kit, "GetSnapshot");
+
+ assertEquals("Shard names", Sets.newHashSet("shard1", "shard2", "astronauts"), Sets.newHashSet(
+ Lists.transform(datastoreSnapshot.getShardSnapshots(), shardNameTransformer)));
+
+ byte[] snapshotBytes = datastoreSnapshot.getShardManagerSnapshot();
+ assertNotNull("Expected ShardManagerSnapshot", snapshotBytes);
+ ShardManagerSnapshot snapshot = SerializationUtils.deserialize(snapshotBytes);
+ assertEquals("Shard names", Sets.newHashSet("shard1", "shard2", "astronauts"),
+ Sets.newHashSet(snapshot.getShardList()));
+
+ LOG.info("testGetSnapshot ending");
+ }
+
+ @Test
+ public void testRestoreFromSnapshot() throws Throwable {
+ LOG.info("testRestoreFromSnapshot starting");
+
+ JavaTestKit kit = new JavaTestKit(getSystem());
+
+ MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("shard1", Collections.<String>emptyList()).
+ put("shard2", Collections.<String>emptyList()).
+ put("astronauts", Collections.<String>emptyList()).build());
+
+
+ ShardManagerSnapshot snapshot = new ShardManagerSnapshot(Arrays.asList("shard1", "shard2", "astronauts"));
+ DatastoreSnapshot restoreFromSnapshot = new DatastoreSnapshot(shardMrgIDSuffix,
+ SerializationUtils.serialize(snapshot), Collections.<ShardSnapshot>emptyList());
+ TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor(newTestShardMgrBuilder(mockConfig).
+ restoreFromSnapshot(restoreFromSnapshot).props().withDispatcher(Dispatchers.DefaultDispatcherId()));
+
+ shardManager.underlyingActor().waitForRecoveryComplete();
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender());
+
+ waitForShardInitialized(shardManager, "shard1", kit);
+ waitForShardInitialized(shardManager, "shard2", kit);
+ waitForShardInitialized(shardManager, "astronauts", kit);
+
+ shardManager.tell(GetSnapshot.INSTANCE, kit.getRef());
+
+ DatastoreSnapshot datastoreSnapshot = expectMsgClassOrFailure(DatastoreSnapshot.class, kit, "GetSnapshot");
+
+ assertEquals("getType", shardMrgIDSuffix, datastoreSnapshot.getType());
+
+ byte[] snapshotBytes = datastoreSnapshot.getShardManagerSnapshot();
+ assertNotNull("Expected ShardManagerSnapshot", snapshotBytes);
+ snapshot = SerializationUtils.deserialize(snapshotBytes);
+ assertEquals("Shard names", Sets.newHashSet("shard1", "shard2", "astronauts"),
+ Sets.newHashSet(snapshot.getShardList()));
+
+ LOG.info("testRestoreFromSnapshot ending");
+ }
+
+ @Test
+ public void testAddShardReplicaForNonExistentShardConfig() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ ActorRef shardManager = actorFactory.createActor(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ shardManager.tell(new AddShardReplica("model-inventory"), getRef());
+ Status.Failure resp = expectMsgClass(duration("2 seconds"), Status.Failure.class);
+
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof IllegalArgumentException));
+ }};
+ }
+
+ @Test
+ public void testAddShardReplica() throws Exception {
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).build());
+
+ final String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
+ datastoreContextBuilder.shardManagerPersistenceId(shardManagerID);
+
+ // Create an ActorSystem ShardManager actor for member-1.
+ final ActorSystem system1 = newActorSystem("Member1");
+ Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+ ActorRef mockDefaultShardActor = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
+ final TestActorRef<TestShardManager> newReplicaShardManager = TestActorRef.create(system1,
+ newTestShardMgrBuilder(mockConfig).shardActor(mockDefaultShardActor).cluster(
+ new ClusterWrapperImpl(system1)).props(), shardManagerID);
+
+ // Create an ActorSystem ShardManager actor for member-2.
+ final ActorSystem system2 = newActorSystem("Member2");
+ Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+
+ String name = new ShardIdentifier("astronauts", "member-2", "config").toString();
+ final TestActorRef<MockRespondActor> mockShardLeaderActor =
+ TestActorRef.create(system2, Props.create(MockRespondActor.class), name);
+ final TestActorRef<TestShardManager> leaderShardManager = TestActorRef.create(system2,
+ newTestShardMgrBuilder(mockConfig).shardActor(mockShardLeaderActor).cluster(
+ new ClusterWrapperImpl(system2)).props(), shardManagerID);
+
+ new JavaTestKit(system1) {{
+
+ newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ leaderShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ leaderShardManager.tell(new ActorInitialized(), mockShardLeaderActor);
+
+ String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix;
+ short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
+ leaderShardManager.tell(new ShardLeaderStateChanged(memberId2, memberId2,
+ Optional.of(mock(DataTree.class)), leaderVersion), mockShardLeaderActor);
+ leaderShardManager.tell(new RoleChangeNotification(memberId2,
+ RaftState.Candidate.name(), RaftState.Leader.name()), mockShardLeaderActor);
+
+ newReplicaShardManager.underlyingActor().waitForMemberUp();
+ leaderShardManager.underlyingActor().waitForMemberUp();
+
+ //Have a dummy snapshot to be overwritten by the new data persisted.
+ String[] restoredShards = {"default", "people"};
+ ShardManagerSnapshot snapshot = new ShardManagerSnapshot(Arrays.asList(restoredShards));
+ InMemorySnapshotStore.addSnapshot(shardManagerID, snapshot);
+ Uninterruptibles.sleepUninterruptibly(2, TimeUnit.MILLISECONDS);
+
+ InMemorySnapshotStore.addSnapshotSavedLatch(shardManagerID);
+ InMemorySnapshotStore.addSnapshotDeletedLatch(shardManagerID);
+
+ //construct a mock response message
+ AddServerReply response = new AddServerReply(ServerChangeStatus.OK, memberId2);
+ mockShardLeaderActor.underlyingActor().updateResponse(response);
+ newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef());
+ AddServer addServerMsg = MessageCollectorActor.expectFirstMatching(mockShardLeaderActor,
+ AddServer.class);
+ String addServerId = "member-1-shard-astronauts-" + shardMrgIDSuffix;
+ assertEquals("AddServer serverId", addServerId, addServerMsg.getNewServerId());
+ expectMsgClass(duration("5 seconds"), Status.Success.class);
+
+ InMemorySnapshotStore.waitForSavedSnapshot(shardManagerID, ShardManagerSnapshot.class);
+ InMemorySnapshotStore.waitForDeletedSnapshot(shardManagerID);
+ List<ShardManagerSnapshot> persistedSnapshots =
+ InMemorySnapshotStore.getSnapshots(shardManagerID, ShardManagerSnapshot.class);
+ assertEquals("Number of snapshots persisted", 1, persistedSnapshots.size());
+ ShardManagerSnapshot shardManagerSnapshot = persistedSnapshots.get(0);
+ assertEquals("Persisted local shards", Sets.newHashSet("default", "astronauts"),
+ Sets.newHashSet(shardManagerSnapshot.getShardList()));
+ }};
+
+ LOG.info("testAddShardReplica ending");
+ }
+
+ @Test
+ public void testAddShardReplicaWithPreExistingReplicaInRemoteShardLeader() throws Exception {
+ LOG.info("testAddShardReplicaWithPreExistingReplicaInRemoteShardLeader starting");
+ new JavaTestKit(getSystem()) {{
+ TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor(
+ newPropsShardMgrWithMockShardActor(), shardMgrID);
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+
+ String leaderId = "leader-member-shard-default-" + shardMrgIDSuffix;
+ AddServerReply addServerReply = new AddServerReply(ServerChangeStatus.ALREADY_EXISTS, null);
+ ActorRef leaderShardActor = shardManager.underlyingActor().getContext().actorOf(
+ Props.create(MockRespondActor.class, addServerReply), leaderId);
+
+ MockClusterWrapper.sendMemberUp(shardManager, "leader-member", leaderShardActor.path().toString());
+
+ String newReplicaId = "member-1-shard-default-" + shardMrgIDSuffix;
+ shardManager.tell(new RoleChangeNotification(newReplicaId,
+ RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
+ shardManager.tell(new ShardLeaderStateChanged(newReplicaId, leaderId, Optional.<DataTree>absent(),
+ DataStoreVersions.CURRENT_VERSION), mockShardActor);
+
+ shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef());
+
+ MessageCollectorActor.expectFirstMatching(leaderShardActor, AddServer.class);
+
+ Failure resp = expectMsgClass(duration("5 seconds"), Failure.class);
+ assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass());
+
+ shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+
+ // Send message again to verify previous in progress state is cleared
+
+ shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef());
+ resp = expectMsgClass(duration("5 seconds"), Failure.class);
+ assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass());
+
+ // Send message again with an AddServer timeout to verify the pre-existing shard actor isn't terminated.
+
+ shardManager.tell(newDatastoreContextFactory(datastoreContextBuilder.
+ shardLeaderElectionTimeout(100, TimeUnit.MILLISECONDS).build()), getRef());
+ leaderShardActor.tell(MockRespondActor.CLEAR_RESPONSE, ActorRef.noSender());
+ shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef());
+ expectMsgClass(duration("5 seconds"), Failure.class);
+
+ shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+ }};
+
+ LOG.info("testAddShardReplicaWithPreExistingReplicaInRemoteShardLeader ending");
+ }
+
+ @Test
+ public void testAddShardReplicaWithPreExistingLocalReplicaLeader() throws Exception {
+ LOG.info("testAddShardReplicaWithPreExistingLocalReplicaLeader starting");
+ new JavaTestKit(getSystem()) {{
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+ ActorRef shardManager = actorFactory.createActor(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+ shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mock(DataTree.class)),
+ DataStoreVersions.CURRENT_VERSION), getRef());
+ shardManager.tell((new RoleChangeNotification(memberId, RaftState.Candidate.name(),
+ RaftState.Leader.name())), mockShardActor);
+
+ shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef());
+ Failure resp = expectMsgClass(duration("5 seconds"), Failure.class);
+ assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass());
+
+ shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef());
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+ }};
+
+ LOG.info("testAddShardReplicaWithPreExistingLocalReplicaLeader ending");
+ }
+
+ @Test
+ public void testAddShardReplicaWithAddServerReplyFailure() throws Exception {
+ LOG.info("testAddShardReplicaWithAddServerReplyFailure starting");
+ new JavaTestKit(getSystem()) {{
+ JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem());
+
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("astronauts", Arrays.asList("member-2")).build());
+
+ ActorRef mockNewReplicaShardActor = newMockShardActor(getSystem(), "astronauts", "member-1");
+ final TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor(
+ newTestShardMgrBuilder(mockConfig).shardActor(mockNewReplicaShardActor).props(), shardMgrID);
+ shardManager.underlyingActor().setMessageInterceptor(newFindPrimaryInterceptor(mockShardLeaderKit.getRef()));
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ JavaTestKit terminateWatcher = new JavaTestKit(getSystem());
+ terminateWatcher.watch(mockNewReplicaShardActor);
+
+ shardManager.tell(new AddShardReplica("astronauts"), getRef());
+
+ AddServer addServerMsg = mockShardLeaderKit.expectMsgClass(AddServer.class);
+ assertEquals("AddServer serverId", "member-1-shard-astronauts-" + shardMrgIDSuffix,
+ addServerMsg.getNewServerId());
+ mockShardLeaderKit.reply(new AddServerReply(ServerChangeStatus.TIMEOUT, null));
+
+ Failure failure = expectMsgClass(duration("5 seconds"), Failure.class);
+ assertEquals("Failure cause", TimeoutException.class, failure.cause().getClass());
+
+ shardManager.tell(new FindLocalShard("astronauts", false), getRef());
+ expectMsgClass(duration("5 seconds"), LocalShardNotFound.class);
+
+ terminateWatcher.expectTerminated(mockNewReplicaShardActor);
+
+ shardManager.tell(new AddShardReplica("astronauts"), getRef());
+ mockShardLeaderKit.expectMsgClass(AddServer.class);
+ mockShardLeaderKit.reply(new AddServerReply(ServerChangeStatus.NO_LEADER, null));
+ failure = expectMsgClass(duration("5 seconds"), Failure.class);
+ assertEquals("Failure cause", NoShardLeaderException.class, failure.cause().getClass());
+ }};
+
+ LOG.info("testAddShardReplicaWithAddServerReplyFailure ending");
+ }
+
+ @Test
+ public void testAddShardReplicaWithAlreadyInProgress() throws Exception {
+ testServerChangeWhenAlreadyInProgress("astronauts", new AddShardReplica("astronauts"),
+ AddServer.class, new AddShardReplica("astronauts"));
+ }
+
+ @Test
+ public void testAddShardReplicaWithFindPrimaryTimeout() throws Exception {
+ LOG.info("testAddShardReplicaWithFindPrimaryTimeout starting");
+ new JavaTestKit(getSystem()) {{
+ MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("astronauts", Arrays.asList("member-2")).build());
+
+ final ActorRef newReplicaShardManager = actorFactory.createActor(newTestShardMgrBuilder(mockConfig).
+ shardActor(mockShardActor).props(), shardMgrID);
+
+ newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ MockClusterWrapper.sendMemberUp(newReplicaShardManager, "member-2", getRef().path().toString());
+
+ newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef());
+ Status.Failure resp = expectMsgClass(duration("5 seconds"), Status.Failure.class);
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof RuntimeException));
+ }};
+
+ LOG.info("testAddShardReplicaWithFindPrimaryTimeout ending");
+ }
+
+ @Test
+ public void testRemoveShardReplicaForNonExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ ActorRef shardManager = actorFactory.createActor(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ shardManager.tell(new RemoveShardReplica("model-inventory", "member-1"), getRef());
+ Status.Failure resp = expectMsgClass(duration("10 seconds"), Status.Failure.class);
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof PrimaryNotFoundException));
+ }};
+ }
+
+ @Test
+ /**
+ * Primary is Local
+ */
+ public void testRemoveShardReplicaLocal() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
+
+ final TestActorRef<MockRespondActor> respondActor =
+ TestActorRef.create(getSystem(), Props.create(MockRespondActor.class), memberId);
+
+ ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor(respondActor));
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), respondActor);
+ shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mock(DataTree.class)),
+ DataStoreVersions.CURRENT_VERSION), getRef());
+ shardManager.tell((new RoleChangeNotification(memberId, RaftState.Candidate.name(),
+ RaftState.Leader.name())), respondActor);
+
+ respondActor.underlyingActor().updateResponse(new RemoveServerReply(ServerChangeStatus.OK, null));
+ shardManager.tell(new RemoveShardReplica(Shard.DEFAULT_NAME, "member-1"), getRef());
+ final RemoveServer removeServer = MessageCollectorActor.expectFirstMatching(respondActor, RemoveServer.class);
+ assertEquals(new ShardIdentifier("default", "member-1", shardMrgIDSuffix).toString(),
+ removeServer.getServerId());
+ expectMsgClass(duration("5 seconds"), Success.class);
+ }};
+ }
+
+ @Test
+ public void testRemoveShardReplicaRemote() throws Exception {
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-1")).build());
+
+ String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
+
+ // Create an ActorSystem ShardManager actor for member-1.
+ final ActorSystem system1 = newActorSystem("Member1");
+ Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+ ActorRef mockDefaultShardActor = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
+
+ final TestActorRef<TestShardManager> newReplicaShardManager = TestActorRef.create(system1,
+ newTestShardMgrBuilder().configuration(mockConfig).shardActor(mockDefaultShardActor).cluster(
+ new ClusterWrapperImpl(system1)).props(),
+ shardManagerID);
+
+ // Create an ActorSystem ShardManager actor for member-2.
+ final ActorSystem system2 = newActorSystem("Member2");
+ Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+
+ String name = new ShardIdentifier("default", "member-2", shardMrgIDSuffix).toString();
+ final TestActorRef<MockRespondActor> mockShardLeaderActor =
+ TestActorRef.create(system2, Props.create(MockRespondActor.class), name);
+
+ LOG.error("Mock Shard Leader Actor : {}", mockShardLeaderActor);
+
+ final TestActorRef<TestShardManager> leaderShardManager = TestActorRef.create(system2,
+ newTestShardMgrBuilder().configuration(mockConfig).shardActor(mockShardLeaderActor).cluster(
+ new ClusterWrapperImpl(system2)).props(),
+ shardManagerID);
+
+ // Because mockShardLeaderActor is created at the top level of the actor system it has an address like so,
+ // akka.tcp://cluster-test@127.0.0.1:2559/user/member-2-shard-default-config1
+ // However when a shard manager has a local shard which is a follower and a leader that is remote it will
+ // try to compute an address for the remote shard leader using the ShardPeerAddressResolver. This address will
+ // look like so,
+ // akka.tcp://cluster-test@127.0.0.1:2559/user/shardmanager-config1/member-2-shard-default-config1
+ // In this specific case if we did a FindPrimary for shard default from member-1 we would come up
+ // with the address of an actor which does not exist, therefore any message sent to that actor would go to
+ // dead letters.
+ // To work around this problem we create a ForwardingActor with the right address and pass to it the
+ // mockShardLeaderActor. The ForwardingActor simply forwards all messages to the mockShardLeaderActor and every
+ // thing works as expected
+ final ActorRef actorRef = leaderShardManager.underlyingActor().context()
+ .actorOf(Props.create(ForwardingActor.class, mockShardLeaderActor), "member-2-shard-default-" + shardMrgIDSuffix);
+
+ LOG.error("Forwarding actor : {}", actorRef);
+
+ new JavaTestKit(system1) {{
+
+ newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ leaderShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ leaderShardManager.tell(new ActorInitialized(), mockShardLeaderActor);
+ newReplicaShardManager.tell(new ActorInitialized(), mockShardLeaderActor);
+
+ String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix;
+ short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
+ leaderShardManager.tell(new ShardLeaderStateChanged(memberId2, memberId2,
+ Optional.of(mock(DataTree.class)), leaderVersion), mockShardLeaderActor);
+ leaderShardManager.tell(new RoleChangeNotification(memberId2,
+ RaftState.Candidate.name(), RaftState.Leader.name()), mockShardLeaderActor);
+
+ String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix;
+ newReplicaShardManager.tell(new ShardLeaderStateChanged(memberId1, memberId2,
+ Optional.of(mock(DataTree.class)), leaderVersion), mockShardActor);
+ newReplicaShardManager.tell(new RoleChangeNotification(memberId1,
+ RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor);
+
+ newReplicaShardManager.underlyingActor().waitForMemberUp();
+ leaderShardManager.underlyingActor().waitForMemberUp();
+
+ //construct a mock response message
+ RemoveServerReply response = new RemoveServerReply(ServerChangeStatus.OK, memberId2);
+ mockShardLeaderActor.underlyingActor().updateResponse(response);
+ newReplicaShardManager.tell(new RemoveShardReplica("default", "member-1"), getRef());
+ RemoveServer removeServer = MessageCollectorActor.expectFirstMatching(mockShardLeaderActor,
+ RemoveServer.class);
+ String removeServerId = new ShardIdentifier("default", "member-1", shardMrgIDSuffix).toString();
+ assertEquals("RemoveServer serverId", removeServerId, removeServer.getServerId());
+ expectMsgClass(duration("5 seconds"), Status.Success.class);
+ }};
+
+ }
+
+ @Test
+ public void testRemoveShardReplicaWhenAnotherRemoveShardReplicaAlreadyInProgress() throws Exception {
+ testServerChangeWhenAlreadyInProgress("astronauts", new RemoveShardReplica("astronauts", "member-2"),
+ RemoveServer.class, new RemoveShardReplica("astronauts", "member-3"));
+ }
+
+ @Test
+ public void testRemoveShardReplicaWhenAddShardReplicaAlreadyInProgress() throws Exception {
+ testServerChangeWhenAlreadyInProgress("astronauts", new AddShardReplica("astronauts"),
+ AddServer.class, new RemoveShardReplica("astronauts", "member-2"));
+ }
+
+
+ public void testServerChangeWhenAlreadyInProgress(final String shardName, final Object firstServerChange,
+ final Class firstForwardedServerChangeClass,
+ final Object secondServerChange) throws Exception {
+ new JavaTestKit(getSystem()) {{
+ JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem());
+ JavaTestKit secondRequestKit = new JavaTestKit(getSystem());
+
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put(shardName, Arrays.asList("member-2")).build());
+
+ final TestActorRef<TestShardManager> shardManager = TestActorRef.create(getSystem(),
+ newTestShardMgrBuilder().configuration(mockConfig).shardActor(mockShardActor).cluster(
+ new MockClusterWrapper()).props(),
+ shardMgrID);
+
+ shardManager.underlyingActor().setMessageInterceptor(newFindPrimaryInterceptor(mockShardLeaderKit.getRef()));
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ shardManager.tell(firstServerChange, getRef());
+
+ mockShardLeaderKit.expectMsgClass(firstForwardedServerChangeClass);
+
+ shardManager.tell(secondServerChange, secondRequestKit.getRef());
+
+ secondRequestKit.expectMsgClass(duration("5 seconds"), Failure.class);
+ }};
+ }
+
+ @Test
+ public void testServerRemovedShardActorNotRunning() throws Exception {
+ LOG.info("testServerRemovedShardActorNotRunning starting");
+ new JavaTestKit(getSystem()) {{
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).
+ put("people", Arrays.asList("member-1", "member-2")).build());
+
+ TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor(newShardMgrProps(mockConfig));
+
+ shardManager.underlyingActor().waitForRecoveryComplete();
+ shardManager.tell(new FindLocalShard("people", false), getRef());
+ expectMsgClass(duration("5 seconds"), NotInitializedException.class);
+
+ shardManager.tell(new FindLocalShard("default", false), getRef());
+ expectMsgClass(duration("5 seconds"), NotInitializedException.class);
+
+ // Removed the default shard replica from member-1
+ ShardIdentifier.Builder builder = new ShardIdentifier.Builder();
+ ShardIdentifier shardId = builder.shardName("default").memberName("member-1").type(shardMrgIDSuffix).build();
+ shardManager.tell(new ServerRemoved(shardId.toString()), getRef());
+
+ shardManager.underlyingActor().verifySnapshotPersisted(Sets.newHashSet("people"));
+ }};
+
+ LOG.info("testServerRemovedShardActorNotRunning ending");
+ }
+
+ @Test
+ public void testServerRemovedShardActorRunning() throws Exception {
+ LOG.info("testServerRemovedShardActorRunning starting");
+ new JavaTestKit(getSystem()) {{
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).
+ put("people", Arrays.asList("member-1", "member-2")).build());
+
+ String shardId = ShardIdentifier.builder().shardName("default").memberName("member-1").
+ type(shardMrgIDSuffix).build().toString();
+ TestActorRef<MessageCollectorActor> shard = actorFactory.createTestActor(
+ MessageCollectorActor.props(), shardId);
+
+ TestActorRef<TestShardManager> shardManager = actorFactory.createTestActor(
+ newTestShardMgrBuilder(mockConfig).addShardActor("default", shard).props());
+
+ watch(shard);
+
+ shardManager.underlyingActor().waitForRecoveryComplete();
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), shard);
+
+ waitForShardInitialized(shardManager, "people", this);
+ waitForShardInitialized(shardManager, "default", this);
+
+ // Removed the default shard replica from member-1
+ shardManager.tell(new ServerRemoved(shardId), getRef());
+
+ shardManager.underlyingActor().verifySnapshotPersisted(Sets.newHashSet("people"));
+
+ expectMsgClass(duration("5 seconds"), Terminated.class);
+ }};
+
+ LOG.info("testServerRemovedShardActorRunning ending");
+ }
+
+
+ @Test
+ public void testShardPersistenceWithRestoredData() throws Exception {
+ LOG.info("testShardPersistenceWithRestoredData starting");
+ new JavaTestKit(getSystem()) {{
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).
+ put("people", Arrays.asList("member-1", "member-2")).build());
+ String[] restoredShards = {"default", "astronauts"};
+ ShardManagerSnapshot snapshot = new ShardManagerSnapshot(Arrays.asList(restoredShards));
+ InMemorySnapshotStore.addSnapshot("shard-manager-" + shardMrgIDSuffix, snapshot);
+
+ //create shardManager to come up with restored data
+ TestActorRef<TestShardManager> newRestoredShardManager = actorFactory.createTestActor(
+ newShardMgrProps(mockConfig));
+
+ newRestoredShardManager.underlyingActor().waitForRecoveryComplete();
+
+ newRestoredShardManager.tell(new FindLocalShard("people", false), getRef());
+ LocalShardNotFound notFound = expectMsgClass(duration("5 seconds"), LocalShardNotFound.class);
+ assertEquals("for uninitialized shard", "people", notFound.getShardName());
+
+ //Verify a local shard is created for the restored shards,
+ //although we expect a NotInitializedException for the shards as the actor initialization
+ //message is not sent for them
+ newRestoredShardManager.tell(new FindLocalShard("default", false), getRef());
+ expectMsgClass(duration("5 seconds"), NotInitializedException.class);
+
+ newRestoredShardManager.tell(new FindLocalShard("astronauts", false), getRef());
+ expectMsgClass(duration("5 seconds"), NotInitializedException.class);
+ }};
+
+ LOG.info("testShardPersistenceWithRestoredData ending");
+ }
+
+
+ private static class TestShardManager extends ShardManager {
+ private final CountDownLatch recoveryComplete = new CountDownLatch(1);
+ private final CountDownLatch snapshotPersist = new CountDownLatch(1);
+ private ShardManagerSnapshot snapshot;
+ private final Map<String, ActorRef> shardActors;
+ private final ActorRef shardActor;
+ private CountDownLatch findPrimaryMessageReceived = new CountDownLatch(1);
+ private CountDownLatch memberUpReceived = new CountDownLatch(1);
+ private CountDownLatch memberRemovedReceived = new CountDownLatch(1);
+ private CountDownLatch memberUnreachableReceived = new CountDownLatch(1);
+ private CountDownLatch memberReachableReceived = new CountDownLatch(1);
+ private volatile MessageInterceptor messageInterceptor;
+
+ private TestShardManager(Builder builder) {
+ super(builder);
+ shardActor = builder.shardActor;
+ shardActors = builder.shardActors;
+ }
+
+ @Override
+ public void handleRecover(Object message) throws Exception {
+ try {
+ super.handleRecover(message);
+ } finally {
+ if(message instanceof RecoveryCompleted) {
+ recoveryComplete.countDown();
+ }
+ }
+ }
+
+ @Override
+ public void handleCommand(Object message) throws Exception {
+ try{
+ if(messageInterceptor != null && messageInterceptor.canIntercept(message)) {
+ getSender().tell(messageInterceptor.apply(message), getSelf());
+ } else {
+ super.handleCommand(message);
+ }
+ } finally {
+ if(message instanceof FindPrimary) {
+ findPrimaryMessageReceived.countDown();
+ } else if(message instanceof ClusterEvent.MemberUp) {
+ String role = ((ClusterEvent.MemberUp)message).member().roles().head();
+ if(!getCluster().getCurrentMemberName().equals(role)) {
+ memberUpReceived.countDown();
+ }
+ } else if(message instanceof ClusterEvent.MemberRemoved) {
+ String role = ((ClusterEvent.MemberRemoved)message).member().roles().head();
+ if(!getCluster().getCurrentMemberName().equals(role)) {
+ memberRemovedReceived.countDown();
+ }
+ } else if(message instanceof ClusterEvent.UnreachableMember) {
+ String role = ((ClusterEvent.UnreachableMember)message).member().roles().head();
+ if(!getCluster().getCurrentMemberName().equals(role)) {
+ memberUnreachableReceived.countDown();
+ }
+ } else if(message instanceof ClusterEvent.ReachableMember) {
+ String role = ((ClusterEvent.ReachableMember)message).member().roles().head();
+ if(!getCluster().getCurrentMemberName().equals(role)) {
+ memberReachableReceived.countDown();
+ }
+ }
+ }
+ }
+
+ void setMessageInterceptor(MessageInterceptor messageInterceptor) {
+ this.messageInterceptor = messageInterceptor;
+ }
+
+ void waitForRecoveryComplete() {
+ assertEquals("Recovery complete", true,
+ Uninterruptibles.awaitUninterruptibly(recoveryComplete, 5, TimeUnit.SECONDS));
+ }
+
+ void waitForMemberUp() {
+ assertEquals("MemberUp received", true,
+ Uninterruptibles.awaitUninterruptibly(memberUpReceived, 5, TimeUnit.SECONDS));
+ memberUpReceived = new CountDownLatch(1);
+ }
+
+ void waitForMemberRemoved() {
+ assertEquals("MemberRemoved received", true,
+ Uninterruptibles.awaitUninterruptibly(memberRemovedReceived, 5, TimeUnit.SECONDS));
+ memberRemovedReceived = new CountDownLatch(1);
+ }
+
+ void waitForUnreachableMember() {
+ assertEquals("UnreachableMember received", true,
+ Uninterruptibles.awaitUninterruptibly(memberUnreachableReceived, 5, TimeUnit.SECONDS
+ ));
+ memberUnreachableReceived = new CountDownLatch(1);
+ }
+
+ void waitForReachableMember() {
+ assertEquals("ReachableMember received", true,
+ Uninterruptibles.awaitUninterruptibly(memberReachableReceived, 5, TimeUnit.SECONDS));
+ memberReachableReceived = new CountDownLatch(1);
+ }
+
+ void verifyFindPrimary() {
+ assertEquals("FindPrimary received", true,
+ Uninterruptibles.awaitUninterruptibly(findPrimaryMessageReceived, 5, TimeUnit.SECONDS));
+ findPrimaryMessageReceived = new CountDownLatch(1);
+ }
+
+ public static Builder builder(DatastoreContext.Builder datastoreContextBuilder) {
+ return new Builder(datastoreContextBuilder);
+ }
+
+ private static class Builder extends AbstractGenericBuilder<Builder, TestShardManager> {
+ private ActorRef shardActor;
+ private final Map<String, ActorRef> shardActors = new HashMap<>();
+
+ Builder(DatastoreContext.Builder datastoreContextBuilder) {
+ super(TestShardManager.class);
+ datastoreContextFactory(newDatastoreContextFactory(datastoreContextBuilder.build()));
+ }
+
+ Builder shardActor(ActorRef shardActor) {
+ this.shardActor = shardActor;
+ return this;
+ }
+
+ Builder addShardActor(String shardName, ActorRef actorRef){
+ shardActors.put(shardName, actorRef);
+ return this;
+ }
+ }
+
+ @Override
+ public void saveSnapshot(Object obj) {
+ snapshot = (ShardManagerSnapshot) obj;
+ snapshotPersist.countDown();
+ super.saveSnapshot(obj);
+ }
+
+ void verifySnapshotPersisted(Set<String> shardList) {
+ assertEquals("saveSnapshot invoked", true,
+ Uninterruptibles.awaitUninterruptibly(snapshotPersist, 5, TimeUnit.SECONDS));
+ assertEquals("Shard Persisted", shardList, Sets.newHashSet(snapshot.getShardList()));
+ }
+
+ @Override
+ protected ActorRef newShardActor(SchemaContext schemaContext, ShardInformation info) {
+ if(shardActors.get(info.getShardName()) != null){
+ return shardActors.get(info.getShardName());
+ }
+
+ if(shardActor != null) {
+ return shardActor;
+ }
+
+ return super.newShardActor(schemaContext, info);
+ }
+ }
+
+ private static abstract class AbstractGenericBuilder<T extends AbstractGenericBuilder<T, ?>, C extends ShardManager>
+ extends ShardManager.AbstractBuilder<T> {
+ private final Class<C> shardManagerClass;
+
+ AbstractGenericBuilder(Class<C> shardManagerClass) {
+ this.shardManagerClass = shardManagerClass;
+ cluster(new MockClusterWrapper()).configuration(new MockConfiguration()).
+ waitTillReadyCountdownLatch(ready).primaryShardInfoCache(new PrimaryShardInfoFutureCache());
+ }
+
+ @Override
+ public Props props() {
+ verify();
+ return Props.create(shardManagerClass, this);
+ }
+ }
+
+ private static class GenericBuilder<C extends ShardManager> extends AbstractGenericBuilder<GenericBuilder<C>, C> {
+ GenericBuilder(Class<C> shardManagerClass) {
+ super(shardManagerClass);
+ }
+ }
+
+ private static class DelegatingShardManagerCreator implements Creator<ShardManager> {
+ private static final long serialVersionUID = 1L;
+ private final Creator<ShardManager> delegate;
+
+ public DelegatingShardManagerCreator(Creator<ShardManager> delegate) {
+ this.delegate = delegate;
+ }