/* * Copyright (c) 2015 Brocade Communications Systems, Inc. and others. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 which accompanies this distribution, * and is available at http://www.eclipse.org/legal/epl-v10.html */ package org.opendaylight.controller.cluster.datastore.entityownership; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNull; import static org.junit.Assert.assertThat; import static org.junit.Assert.assertTrue; import static org.mockito.AdditionalMatchers.or; import static org.mockito.Mockito.doNothing; import static org.mockito.Mockito.reset; import static org.mockito.Mockito.timeout; import static org.mockito.Mockito.verify; import static org.opendaylight.controller.cluster.datastore.MemberNode.verifyRaftState; import static org.opendaylight.controller.cluster.datastore.entityownership.AbstractEntityOwnershipTest.ownershipChange; import static org.opendaylight.controller.cluster.datastore.entityownership.DistributedEntityOwnershipService.ENTITY_OWNERSHIP_SHARD_NAME; import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.CANDIDATE_NAME_NODE_ID; import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.entityPath; import akka.actor.ActorRef; import akka.actor.Status.Failure; import akka.actor.Status.Success; import akka.cluster.Cluster; import akka.testkit.JavaTestKit; import com.google.common.base.Function; import com.google.common.base.Optional; import com.google.common.base.Stopwatch; import com.google.common.collect.Iterables; import com.google.common.util.concurrent.Uninterruptibles; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.List; import java.util.concurrent.TimeUnit; import org.junit.After; import org.junit.Before; import org.junit.Test; import org.mockito.ArgumentCaptor; import org.mockito.Mock; import org.mockito.Mockito; import org.mockito.MockitoAnnotations; import org.opendaylight.controller.cluster.datastore.DatastoreContext; import org.opendaylight.controller.cluster.datastore.DistributedDataStore; import org.opendaylight.controller.cluster.datastore.IntegrationTestKit; import org.opendaylight.controller.cluster.datastore.MemberNode; import org.opendaylight.controller.cluster.datastore.MemberNode.RaftStateVerifier; import org.opendaylight.controller.cluster.datastore.entityownership.selectionstrategy.EntityOwnerSelectionStrategyConfig; import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica; import org.opendaylight.controller.cluster.raft.RaftState; import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState; import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy; import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal; import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore; import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper; import org.opendaylight.controller.md.sal.common.api.clustering.CandidateAlreadyRegisteredException; import org.opendaylight.controller.md.sal.common.api.clustering.Entity; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipCandidateRegistration; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipChange; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListener; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService; import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipState; import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.clustering.entity.owners.rev150804.entity.owners.entity.type.entity.Candidate; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier; import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode; import org.opendaylight.yangtools.yang.data.api.schema.MapNode; import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; import org.opendaylight.yangtools.yang.model.api.SchemaContext; /** * End-to-end integration tests for the entity ownership functionality. * * @author Thomas Pantelis */ public class DistributedEntityOwnershipIntegrationTest { private static final String MODULE_SHARDS_CONFIG = "module-shards-default.conf"; private static final String MODULE_SHARDS_MEMBER_1_CONFIG = "module-shards-default-member-1.conf"; private static final String ENTITY_TYPE1 = "entityType1"; private static final String ENTITY_TYPE2 = "entityType2"; private static final Entity ENTITY1 = new Entity(ENTITY_TYPE1, "entity1"); private static final Entity ENTITY1_2 = new Entity(ENTITY_TYPE2, "entity1"); private static final Entity ENTITY2 = new Entity(ENTITY_TYPE1, "entity2"); private static final Entity ENTITY3 = new Entity(ENTITY_TYPE1, "entity3"); private static final Entity ENTITY4 = new Entity(ENTITY_TYPE1, "entity4"); private static final SchemaContext SCHEMA_CONTEXT = SchemaContextHelper.entityOwners(); private final DatastoreContext.Builder leaderDatastoreContextBuilder = DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5). shardIsolatedLeaderCheckIntervalInMillis(1000000); private final DatastoreContext.Builder followerDatastoreContextBuilder = DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(10000); private final List memberNodes = new ArrayList<>(); @Mock private EntityOwnershipListener leaderMockListener; @Mock private EntityOwnershipListener leaderMockListener2; @Mock private EntityOwnershipListener follower1MockListener; @Mock private EntityOwnershipListener follower2MockListener; @Before public void setUp() { MockitoAnnotations.initMocks(this); InMemoryJournal.clear(); InMemorySnapshotStore.clear(); } @After public void tearDown() { for(MemberNode m: memberNodes) { m.cleanup(); } } private static DistributedEntityOwnershipService newOwnershipService(DistributedDataStore datastore) { DistributedEntityOwnershipService service = new DistributedEntityOwnershipService(datastore, EntityOwnerSelectionStrategyConfig.newBuilder().build()); service.start(); return service; } @Test public void testFunctionalityWithThreeNodes() throws Exception { String name = "test"; 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(); DistributedDataStore leaderDistributedDataStore = leaderNode.configDataStore(); leaderDistributedDataStore.waitTillReady(); follower1Node.configDataStore().waitTillReady(); follower2Node.configDataStore().waitTillReady(); EntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore); EntityOwnershipService follower1EntityOwnershipService = newOwnershipService(follower1Node.configDataStore()); EntityOwnershipService follower2EntityOwnershipService = newOwnershipService(follower2Node.configDataStore()); leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME); leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener); leaderEntityOwnershipService.registerListener(ENTITY_TYPE2, leaderMockListener2); follower1EntityOwnershipService.registerListener(ENTITY_TYPE1, follower1MockListener); // Register leader candidate for entity1 and verify it becomes owner leaderEntityOwnershipService.registerCandidate(ENTITY1); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, true, true)); verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true)); reset(leaderMockListener, follower1MockListener); verifyGetOwnershipState(leaderEntityOwnershipService, ENTITY1, true, true); verifyGetOwnershipState(follower1EntityOwnershipService, ENTITY1, false, true); // Register leader candidate for entity1_2 (same id, different type) and verify it becomes owner leaderEntityOwnershipService.registerCandidate(ENTITY1_2); verify(leaderMockListener2, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1_2, false, true, true)); verify(leaderMockListener, timeout(300).never()).ownershipChanged(ownershipChange(ENTITY1_2)); reset(leaderMockListener2); // Register follower1 candidate for entity1 and verify it gets added but doesn't become owner follower1EntityOwnershipService.registerCandidate(ENTITY1); verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-1", "member-2"); verifyOwner(leaderDistributedDataStore, ENTITY1, "member-1"); verify(leaderMockListener, timeout(300).never()).ownershipChanged(ownershipChange(ENTITY1)); verify(follower1MockListener, timeout(300).never()).ownershipChanged(ownershipChange(ENTITY1)); // Register follower1 candidate for entity2 and verify it becomes owner EntityOwnershipCandidateRegistration follower1Entity2Reg = follower1EntityOwnershipService.registerCandidate(ENTITY2); verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true)); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, true)); reset(leaderMockListener, follower1MockListener); // Register follower2 candidate for entity2 and verify it gets added but doesn't become owner follower2EntityOwnershipService.registerListener(ENTITY_TYPE1, follower2MockListener); verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, true)); verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true)); follower2EntityOwnershipService.registerCandidate(ENTITY2); verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-2", "member-3"); verifyOwner(leaderDistributedDataStore, ENTITY2, "member-2"); // Unregister follower1 candidate for entity2 and verify follower2 becomes owner follower1Entity2Reg.close(); verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-3"); verifyOwner(leaderDistributedDataStore, ENTITY2, "member-3"); verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, true, false, true)); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, true)); // Depending on timing, follower2MockListener could get ownershipChanged with "false, false, true" if // if the original ownership change with "member-2 is replicated to follower2 after the listener is // registered. Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS); verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true)); // Register follower1 candidate for entity3 and verify it becomes owner follower1EntityOwnershipService.registerCandidate(ENTITY3); verifyOwner(leaderDistributedDataStore, ENTITY3, "member-2"); verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, true, true)); verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, false, true)); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, false, true)); // Register follower2 candidate for entity4 and verify it becomes owner follower2EntityOwnershipService.registerCandidate(ENTITY4); verifyOwner(leaderDistributedDataStore, ENTITY4, "member-3"); verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, true, true)); verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true)); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true)); reset(follower1MockListener, follower2MockListener); // Register follower1 candidate for entity4 and verify it gets added but doesn't become owner follower1EntityOwnershipService.registerCandidate(ENTITY4); verifyCandidates(leaderDistributedDataStore, ENTITY4, "member-3", "member-2"); verifyOwner(leaderDistributedDataStore, ENTITY4, "member-3"); // Shutdown follower2 and verify it's owned entities (entity 2 & 4) get re-assigned reset(leaderMockListener, follower1MockListener); follower2Node.cleanup(); verify(follower1MockListener, timeout(15000).times(2)).ownershipChanged(or(ownershipChange(ENTITY4, false, true, true), ownershipChange(ENTITY2, false, false, false))); verify(leaderMockListener, timeout(15000).times(2)).ownershipChanged(or(ownershipChange(ENTITY4, false, false, true), ownershipChange(ENTITY2, false, false, false))); verifyOwner(leaderDistributedDataStore, ENTITY2, ""); // no other candidate // Register leader candidate for entity2 and verify it becomes owner EntityOwnershipCandidateRegistration leaderEntity2Reg = leaderEntityOwnershipService.registerCandidate(ENTITY2); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true)); verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1"); // Unregister leader candidate for entity2 and verify the owner is cleared leaderEntity2Reg.close(); verifyOwner(leaderDistributedDataStore, ENTITY2, ""); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, true, false, false)); verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, false)); } @Test public void testLeaderCandidatesRemovedAfterShutdown() throws Exception { followerDatastoreContextBuilder.shardElectionTimeoutFactor(5). customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName()); String name = "test"; 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(); DistributedDataStore leaderDistributedDataStore = leaderNode.configDataStore(); leaderDistributedDataStore.waitTillReady(); follower1Node.configDataStore().waitTillReady(); follower2Node.configDataStore().waitTillReady(); EntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore); EntityOwnershipService follower1EntityOwnershipService = newOwnershipService(follower1Node.configDataStore()); EntityOwnershipService 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 folower1 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, new RaftStateVerifier() { @Override public void verify(OnDemandRaftState raftState) { assertEquals("Raft state", RaftState.Leader.toString(), raftState.getRaftState()); } }); // Verify the prior leader's candidates are removed verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2"); verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-3"); verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2"); verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3"); } /** * Reproduces bug 4554 * * @throws CandidateAlreadyRegisteredException */ @Test public void testCloseCandidateRegistrationInQuickSuccession() throws CandidateAlreadyRegisteredException { String name = "testCloseCandidateRegistrationInQuickSuccession"; 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(); DistributedDataStore leaderDistributedDataStore = leaderNode.configDataStore(); leaderDistributedDataStore.waitTillReady(); follower1Node.configDataStore().waitTillReady(); follower2Node.configDataStore().waitTillReady(); EntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore); EntityOwnershipService follower1EntityOwnershipService = newOwnershipService(follower1Node.configDataStore()); EntityOwnershipService follower2EntityOwnershipService = newOwnershipService(follower2Node.configDataStore()); leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME); leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener); follower1EntityOwnershipService.registerListener(ENTITY_TYPE1, follower1MockListener); follower2EntityOwnershipService.registerListener(ENTITY_TYPE1, follower2MockListener); final EntityOwnershipCandidateRegistration candidate1 = leaderEntityOwnershipService.registerCandidate(ENTITY1); final EntityOwnershipCandidateRegistration candidate2 = follower1EntityOwnershipService.registerCandidate(ENTITY1); final EntityOwnershipCandidateRegistration candidate3 = follower2EntityOwnershipService.registerCandidate(ENTITY1); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, true, true)); Mockito.reset(leaderMockListener); ArgumentCaptor leaderChangeCaptor = ArgumentCaptor.forClass(EntityOwnershipChange.class); ArgumentCaptor follower1ChangeCaptor = ArgumentCaptor.forClass(EntityOwnershipChange.class); ArgumentCaptor follower2ChangeCaptor = ArgumentCaptor.forClass(EntityOwnershipChange.class); doNothing().when(leaderMockListener).ownershipChanged(leaderChangeCaptor.capture()); doNothing().when(follower1MockListener).ownershipChanged(follower1ChangeCaptor.capture()); doNothing().when(follower2MockListener).ownershipChanged(follower2ChangeCaptor.capture()); candidate1.close(); candidate2.close(); candidate3.close(); boolean passed = false; for(int i=0;i<100;i++) { Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS); if(!leaderEntityOwnershipService.getOwnershipState(ENTITY1).isPresent() || !leaderEntityOwnershipService.getOwnershipState(ENTITY1).get().hasOwner() && follower1EntityOwnershipService.getOwnershipState(ENTITY1).isPresent() && !follower1EntityOwnershipService.getOwnershipState(ENTITY1).get().hasOwner() && follower2EntityOwnershipService.getOwnershipState(ENTITY1).isPresent() && !follower2EntityOwnershipService.getOwnershipState(ENTITY1).get().hasOwner() && leaderChangeCaptor.getAllValues().size() > 0 && !leaderChangeCaptor.getValue().hasOwner() && leaderChangeCaptor.getAllValues().size() > 0 && !follower1ChangeCaptor.getValue().hasOwner() && leaderChangeCaptor.getAllValues().size() > 0 && !follower2ChangeCaptor.getValue().hasOwner()) { passed = true; break; } } assertTrue("No ownership change message was sent with hasOwner=false", passed); } /** * Tests bootstrapping the entity-ownership shard when there's no shards initially configured for local * member. The entity-ownership shard is initially created as inactive (ie remains a follower), requiring * an AddShardReplica request to join it to an existing leader. */ @Test public void testEntityOwnershipShardBootstrapping() throws Throwable { String name = "testEntityOwnershipShardBootstrapping"; String moduleShardsConfig = MODULE_SHARDS_MEMBER_1_CONFIG; MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name ). moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false). datastoreContextBuilder(leaderDatastoreContextBuilder).build(); DistributedDataStore leaderDistributedDataStore = leaderNode.configDataStore(); EntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore); leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME); MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name ). moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false). datastoreContextBuilder(followerDatastoreContextBuilder).build(); DistributedDataStore follower1DistributedDataStore = follower1Node.configDataStore(); follower1DistributedDataStore.waitTillReady(); leaderNode.waitForMembersUp("member-2"); follower1Node.waitForMembersUp("member-1"); EntityOwnershipService follower1EntityOwnershipService = newOwnershipService(follower1DistributedDataStore); leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener); // Register a candidate for follower1 - should get queued since follower1 has no leader EntityOwnershipCandidateRegistration candidateReg = follower1EntityOwnershipService.registerCandidate(ENTITY1); verify(leaderMockListener, timeout(300).never()).ownershipChanged(ownershipChange(ENTITY1)); // Add replica in follower1 AddShardReplica addReplica = new AddShardReplica(ENTITY_OWNERSHIP_SHARD_NAME); follower1DistributedDataStore.getActorContext().getShardManager().tell(addReplica , follower1Node.kit().getRef()); Object reply = follower1Node.kit().expectMsgAnyClassOf(JavaTestKit.duration("5 sec"), Success.class, Failure.class); if(reply instanceof Failure) { throw new AssertionError("AddShardReplica failed", ((Failure)reply).cause()); } // The queued candidate registration should proceed verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true)); reset(leaderMockListener); candidateReg.close(); verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, false)); reset(leaderMockListener); // Restart follower1 and verify the entity ownership shard is re-instated by registering. Cluster.get(leaderNode.kit().getSystem()).down(Cluster.get(follower1Node.kit().getSystem()).selfAddress()); follower1Node.cleanup(); follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name ). moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false). datastoreContextBuilder(followerDatastoreContextBuilder).build(); follower1EntityOwnershipService = newOwnershipService(follower1Node.configDataStore()); follower1EntityOwnershipService.registerCandidate(ENTITY1); verify(leaderMockListener, timeout(20000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true)); verifyRaftState(follower1Node.configDataStore(), ENTITY_OWNERSHIP_SHARD_NAME, new RaftStateVerifier() { @Override public void verify(OnDemandRaftState raftState) { assertNull("Custom RaftPolicy class name", raftState.getCustomRaftPolicyClassName()); assertEquals("Peer count", 1, raftState.getPeerAddresses().keySet().size()); assertThat("Peer Id", Iterables.getLast(raftState.getPeerAddresses().keySet()), org.hamcrest.CoreMatchers.containsString("member-1")); } }); } private static void verifyGetOwnershipState(EntityOwnershipService service, Entity entity, boolean isOwner, boolean hasOwner) { Optional state = service.getOwnershipState(entity); assertEquals("getOwnershipState present", true, state.isPresent()); assertEquals("isOwner", isOwner, state.get().isOwner()); assertEquals("hasOwner", hasOwner, state.get().hasOwner()); } private static void verifyCandidates(DistributedDataStore dataStore, Entity entity, String... expCandidates) throws Exception { AssertionError lastError = null; Stopwatch sw = Stopwatch.createStarted(); while(sw.elapsed(TimeUnit.MILLISECONDS) <= 10000) { Optional> possible = dataStore.newReadOnlyTransaction().read( entityPath(entity.getType(), entity.getId()).node(Candidate.QNAME)).get(5, TimeUnit.SECONDS); try { assertEquals("Candidates not found for " + entity, true, possible.isPresent()); Collection actual = new ArrayList<>(); for(MapEntryNode candidate: ((MapNode)possible.get()).getValue()) { actual.add(candidate.getChild(CANDIDATE_NAME_NODE_ID).get().getValue().toString()); } assertEquals("Candidates for " + entity, Arrays.asList(expCandidates), actual); return; } catch (AssertionError e) { lastError = e; Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS); } } throw lastError; } private static void verifyOwner(final DistributedDataStore dataStore, Entity entity, String expOwner) { AbstractEntityOwnershipTest.verifyOwner(expOwner, entity.getType(), entity.getId(), new Function>() { @Override public NormalizedNode apply(YangInstanceIdentifier path) { try { return dataStore.newReadOnlyTransaction().read(path).get(5, TimeUnit.SECONDS).get(); } catch (Exception e) { return null; } } }); } }