+ @Test
+ public void testLeaderEntityOwnersReassignedAfterShutdown() throws Exception {
+ followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
+ .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
+
+ String name = "testLeaderEntityOwnersReassignedAfterShutdown";
+ MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
+ .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
+
+ MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
+ .datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+ MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
+ .datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+ AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
+
+ leaderDistributedDataStore.waitTillReady();
+ follower1Node.configDataStore().waitTillReady();
+ follower2Node.configDataStore().waitTillReady();
+
+ final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
+ final DOMEntityOwnershipService follower1EntityOwnershipService =
+ newOwnershipService(follower1Node.configDataStore());
+ final DOMEntityOwnershipService follower2EntityOwnershipService =
+ newOwnershipService(follower2Node.configDataStore());
+
+ leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
+
+ // Register follower1 candidate for entity1 and verify it becomes owner
+
+ follower1EntityOwnershipService.registerCandidate(ENTITY1);
+ verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
+
+ // Register leader candidate for entity1
+
+ leaderEntityOwnershipService.registerCandidate(ENTITY1);
+ verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2", "member-1");
+ verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
+
+ // Register leader candidate for entity2 and verify it becomes owner
+
+ leaderEntityOwnershipService.registerCandidate(ENTITY2);
+ verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
+
+ // Register follower2 candidate for entity2
+
+ follower2EntityOwnershipService.registerCandidate(ENTITY2);
+ verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3");
+ verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
+
+ // Shutdown the leader and verify its removed from the candidate list
+
+ leaderNode.cleanup();
+ follower1Node.waitForMemberDown("member-1");
+
+ // Re-enable elections on follower1 so it becomes the leader
+
+ ActorRef follower1Shard = IntegrationTestKit.findLocalShard(follower1Node.configDataStore().getActorContext(),
+ ENTITY_OWNERSHIP_SHARD_NAME);
+ follower1Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
+ .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
+
+ MemberNode.verifyRaftState(follower1Node.configDataStore(), ENTITY_OWNERSHIP_SHARD_NAME,
+ raftState -> assertEquals("Raft state", RaftState.Leader.toString(), raftState.getRaftState()));
+
+ // Verify the prior leader's entity owners are re-assigned.
+
+ verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2", "member-1");
+ verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-1", "member-3");
+ verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2");
+ verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3");
+ }
+
+ @Test
+ public void testLeaderAndFollowerEntityOwnersReassignedAfterShutdown() throws Exception {
+ followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
+ .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
+
+ String name = "testLeaderAndFollowerEntityOwnersReassignedAfterShutdown";
+ final MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1")
+ .useAkkaArtery(false).testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
+ .createOperDatastore(false).datastoreContextBuilder(leaderDatastoreContextBuilder).build();
+
+ final MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2")
+ .useAkkaArtery(false).testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
+ .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+ final MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3")
+ .useAkkaArtery(false).testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
+ .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+ final MemberNode follower3Node = MemberNode.builder(memberNodes).akkaConfig("Member4")
+ .useAkkaArtery(false).testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
+ .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+ final MemberNode follower4Node = MemberNode.builder(memberNodes).akkaConfig("Member5")
+ .useAkkaArtery(false).testName(name)
+ .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
+ .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+ AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
+
+ leaderDistributedDataStore.waitTillReady();
+ follower1Node.configDataStore().waitTillReady();
+ follower2Node.configDataStore().waitTillReady();
+
+ final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
+ final DOMEntityOwnershipService follower1EntityOwnershipService =
+ newOwnershipService(follower1Node.configDataStore());
+ final DOMEntityOwnershipService follower2EntityOwnershipService =
+ newOwnershipService(follower2Node.configDataStore());
+ final DOMEntityOwnershipService follower3EntityOwnershipService =
+ newOwnershipService(follower3Node.configDataStore());
+ newOwnershipService(follower4Node.configDataStore());
+
+ leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
+
+ // Register follower1 candidate for entity1 and verify it becomes owner
+
+ follower1EntityOwnershipService.registerCandidate(ENTITY1);
+ verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
+
+ // Register leader candidate for entity1
+
+ leaderEntityOwnershipService.registerCandidate(ENTITY1);
+ verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2", "member-1");
+ verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
+
+ // Register leader candidate for entity2 and verify it becomes owner
+
+ leaderEntityOwnershipService.registerCandidate(ENTITY2);
+ verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
+
+ // Register follower2 candidate for entity2
+
+ follower2EntityOwnershipService.registerCandidate(ENTITY2);
+ verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3");
+ verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
+
+ // Register follower3 as a candidate for entity2 as well
+
+ follower3EntityOwnershipService.registerCandidate(ENTITY2);
+ verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3", "member-4");
+ verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
+
+ // Shutdown the leader and follower3
+
+ leaderNode.cleanup();
+ follower3Node.cleanup();
+
+ follower1Node.waitForMemberDown("member-1");
+ follower1Node.waitForMemberDown("member-4");
+
+ // Re-enable elections on follower1 so it becomes the leader
+
+ ActorRef follower1Shard = IntegrationTestKit.findLocalShard(follower1Node.configDataStore().getActorContext(),
+ ENTITY_OWNERSHIP_SHARD_NAME);
+ follower1Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
+ .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
+
+ MemberNode.verifyRaftState(follower1Node.configDataStore(), ENTITY_OWNERSHIP_SHARD_NAME,
+ raftState -> assertEquals("Raft state", RaftState.Leader.toString(), raftState.getRaftState()));
+
+ // Verify the prior leader's and follower3 entity owners are re-assigned.
+
+ verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2", "member-1");
+ verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-1", "member-3", "member-4");
+ verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2");
+ verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3");
+ }
+