X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Ftest%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FShardManagerTest.java;h=596761ddc8fa9e9d25b4c797c2f814f5a1c63a09;hp=ed7b6866bf5fffff21cae1f61379a3126257ea07;hb=4680d02510a884b3a893345f423cedcc8c5af0f4;hpb=1b8f7c7beaed83797320686bebddd536637aed9a diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java index ed7b6866bf..3257e8f910 100644 --- a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java +++ b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardManagerTest.java @@ -1,455 +1,1800 @@ +/* + * Copyright (c) 2014, 2015 Cisco 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; +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.assertNull; +import static org.junit.Assert.assertSame; +import static org.junit.Assert.assertTrue; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.never; +import static org.mockito.Mockito.times; +import static org.mockito.Mockito.verify; import akka.actor.ActorRef; import akka.actor.ActorSystem; +import akka.actor.AddressFromURIString; +import akka.actor.PoisonPill; import akka.actor.Props; -import akka.dispatch.Futures; -import akka.japi.Procedure; -import akka.persistence.PersistentConfirmation; -import akka.persistence.PersistentId; -import akka.persistence.PersistentImpl; -import akka.persistence.PersistentRepr; -import akka.persistence.journal.japi.AsyncWriteJournal; +import akka.actor.Status; +import akka.actor.Status.Failure; +import akka.actor.Status.Success; +import akka.actor.Terminated; +import akka.cluster.Cluster; +import akka.cluster.ClusterEvent; +import akka.dispatch.Dispatchers; +import akka.japi.Creator; +import akka.pattern.Patterns; +import akka.persistence.RecoveryCompleted; +import akka.serialization.Serialization; import akka.testkit.JavaTestKit; import akka.testkit.TestActorRef; +import akka.util.Timeout; +import com.google.common.base.Function; +import com.google.common.base.Optional; +import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableSet; -import com.google.common.collect.Maps; +import com.google.common.collect.Sets; import com.google.common.util.concurrent.Uninterruptibles; -import com.typesafe.config.Config; import com.typesafe.config.ConfigFactory; -import com.typesafe.config.ConfigValueFactory; -import org.junit.AfterClass; +import java.net.URI; +import java.util.AbstractMap; +import java.util.Arrays; +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; +import java.util.Set; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.TimeoutException; +import org.junit.After; import org.junit.Before; -import org.junit.BeforeClass; import org.junit.Test; +import org.mockito.Mock; +import org.mockito.Mockito; +import org.mockito.MockitoAnnotations; +import org.opendaylight.controller.cluster.datastore.config.Configuration; +import org.opendaylight.controller.cluster.datastore.config.ConfigurationImpl; +import org.opendaylight.controller.cluster.datastore.config.EmptyModuleShardConfigProvider; +import org.opendaylight.controller.cluster.datastore.config.ModuleShardConfiguration; +import org.opendaylight.controller.cluster.datastore.exceptions.AlreadyExistsException; +import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException; +import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException; +import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException; import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier; +import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier; import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized; +import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica; +import org.opendaylight.controller.cluster.datastore.messages.CreateShard; +import org.opendaylight.controller.cluster.datastore.messages.DatastoreSnapshot; +import org.opendaylight.controller.cluster.datastore.messages.DatastoreSnapshot.ShardSnapshot; import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard; import org.opendaylight.controller.cluster.datastore.messages.FindPrimary; +import org.opendaylight.controller.cluster.datastore.messages.LocalPrimaryShardFound; import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound; import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound; -import org.opendaylight.controller.cluster.datastore.messages.PrimaryFound; -import org.opendaylight.controller.cluster.datastore.messages.PrimaryNotFound; +import org.opendaylight.controller.cluster.datastore.messages.PeerDown; +import org.opendaylight.controller.cluster.datastore.messages.PeerUp; +import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo; +import org.opendaylight.controller.cluster.datastore.messages.RemotePrimaryShardFound; +import org.opendaylight.controller.cluster.datastore.messages.RemoveShardReplica; +import org.opendaylight.controller.cluster.datastore.messages.ShardLeaderStateChanged; +import org.opendaylight.controller.cluster.datastore.messages.SwitchShardBehavior; import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext; -import org.opendaylight.controller.cluster.datastore.utils.DoNothingActor; import org.opendaylight.controller.cluster.datastore.utils.MockClusterWrapper; import org.opendaylight.controller.cluster.datastore.utils.MockConfiguration; +import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache; +import org.opendaylight.controller.cluster.notifications.LeaderStateChanged; +import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener; +import org.opendaylight.controller.cluster.notifications.RoleChangeNotification; +import org.opendaylight.controller.cluster.raft.RaftState; +import org.opendaylight.controller.cluster.raft.base.messages.FollowerInitialSyncUpStatus; +import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior; +import org.opendaylight.controller.cluster.raft.client.messages.GetSnapshot; +import org.opendaylight.controller.cluster.raft.messages.AddServer; +import org.opendaylight.controller.cluster.raft.messages.AddServerReply; +import org.opendaylight.controller.cluster.raft.messages.ServerChangeStatus; +import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy; +import org.opendaylight.controller.cluster.raft.messages.ServerRemoved; +import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal; +import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore; +import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor; import org.opendaylight.controller.md.cluster.datastore.model.TestModel; -import org.opendaylight.yangtools.yang.model.api.ModuleIdentifier; +import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree; import org.opendaylight.yangtools.yang.model.api.SchemaContext; +import scala.concurrent.Await; import scala.concurrent.Future; +import scala.concurrent.duration.FiniteDuration; -import java.net.URI; -import java.util.Collection; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Map; -import java.util.Set; -import java.util.concurrent.Callable; -import java.util.concurrent.TimeUnit; +public class ShardManagerTest extends AbstractActorTest { + private static int ID_COUNTER = 1; -import static junit.framework.Assert.assertEquals; -import static org.junit.Assert.assertFalse; -import static org.junit.Assert.assertTrue; -import static org.mockito.Mockito.mock; -import static org.mockito.Mockito.when; + private final String shardMrgIDSuffix = "config" + ID_COUNTER++; + private final String shardMgrID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); + + @Mock + private static CountDownLatch ready; -public class ShardManagerTest { - private static ActorSystem system; - Configuration mockConfig = new MockConfiguration(); - private static ActorRef defaultShardMockActor; + private static TestActorRef mockShardActor; - @BeforeClass - public static void setUpClass() { - Map myJournal = new HashMap<>(); - myJournal.put("class", "org.opendaylight.controller.cluster.datastore.ShardManagerTest$MyJournal"); - myJournal.put("plugin-dispatcher", "akka.actor.default-dispatcher"); - Config config = ConfigFactory.load() - .withValue("akka.persistence.journal.plugin", - ConfigValueFactory.fromAnyRef("my-journal")) - .withValue("my-journal", ConfigValueFactory.fromMap(myJournal)); + private static String mockShardName; - MyJournal.clear(); + private final DatastoreContext.Builder datastoreContextBuilder = DatastoreContext.newBuilder(). + dataStoreType(shardMrgIDSuffix).shardInitializationTimeout(600, TimeUnit.MILLISECONDS) + .shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(6); - system = ActorSystem.create("test", config); + private static ActorRef newMockShardActor(ActorSystem system, String shardName, String memberName) { + String name = new ShardIdentifier(shardName, memberName,"config").toString(); + return TestActorRef.create(system, Props.create(MessageCollectorActor.class), name); + } + + private final PrimaryShardInfoFutureCache primaryShardInfoCache = new PrimaryShardInfoFutureCache(); - String name = new ShardIdentifier(Shard.DEFAULT_NAME, "member-1","config").toString(); - defaultShardMockActor = system.actorOf(Props.create(DoNothingActor.class), name); + @Before + public void setUp() { + MockitoAnnotations.initMocks(this); + InMemoryJournal.clear(); + InMemorySnapshotStore.clear(); + if(mockShardActor == null) { + mockShardName = new ShardIdentifier(Shard.DEFAULT_NAME, "member-1", "config").toString(); + mockShardActor = TestActorRef.create(getSystem(), Props.create(MessageCollectorActor.class), mockShardName); + } + + mockShardActor.underlyingActor().clear(); } - @AfterClass - public static void tearDown() { - JavaTestKit.shutdownActorSystem(system); - system = null; + @After + public void tearDown() { + InMemoryJournal.clear(); + InMemorySnapshotStore.clear(); } - @Before - public void setUpTest(){ - MyJournal.clear(); + private Props newShardMgrProps() { + return newShardMgrProps(new MockConfiguration()); + } + + private static DatastoreContextFactory newDatastoreContextFactory(DatastoreContext datastoreContext) { + DatastoreContextFactory mockFactory = mock(DatastoreContextFactory.class); + Mockito.doReturn(datastoreContext).when(mockFactory).getBaseDatastoreContext(); + Mockito.doReturn(datastoreContext).when(mockFactory).getShardDatastoreContext(Mockito.anyString()); + return mockFactory; + } + + private Props newShardMgrProps(Configuration config) { + return TestShardManager.builder(datastoreContextBuilder).configuration(config).props(); + } + + private Props newPropsShardMgrWithMockShardActor() { + return newPropsShardMgrWithMockShardActor("shardManager", mockShardActor, new MockClusterWrapper(), + new MockConfiguration()); + } + + private Props newPropsShardMgrWithMockShardActor(final String name, final ActorRef shardActor, + final ClusterWrapper clusterWrapper, final Configuration config) { + Creator creator = new Creator() { + private static final long serialVersionUID = 1L; + @Override + public ShardManager create() throws Exception { + return new ForwardingShardManager(ShardManager.builder().cluster(clusterWrapper).configuration(config). + datastoreContextFactory(newDatastoreContextFactory(datastoreContextBuilder.build())). + waitTillReadyCountdownLatch(ready).primaryShardInfoCache(primaryShardInfoCache), name, shardActor); + } + }; + + return Props.create(new DelegatingShardManagerCreator(creator)).withDispatcher(Dispatchers.DefaultDispatcherId()); + } + + private TestShardManager newTestShardManager() { + return newTestShardManager(newShardMgrProps()); + } + + private TestShardManager newTestShardManager(Props props) { + TestActorRef shardManagerActor = TestActorRef.create(getSystem(), props); + TestShardManager shardManager = shardManagerActor.underlyingActor(); + shardManager.waitForRecoveryComplete(); + return shardManager; + } + + @Test + public void testPerShardDatastoreContext() throws Exception { + final DatastoreContextFactory mockFactory = newDatastoreContextFactory( + datastoreContextBuilder.shardElectionTimeoutFactor(5).build()); + + Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()). + shardElectionTimeoutFactor(6).build()).when(mockFactory).getShardDatastoreContext("default"); + + Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()). + shardElectionTimeoutFactor(7).build()).when(mockFactory).getShardDatastoreContext("topology"); + + final MockConfiguration mockConfig = new MockConfiguration() { + @Override + public Collection getMemberShardNames(String memberName) { + return Arrays.asList("default", "topology"); + } + + @Override + public Collection getMembersFromShardName(String shardName) { + return Arrays.asList("member-1"); + } + }; + + final TestActorRef defaultShardActor = TestActorRef.create(getSystem(), + Props.create(MessageCollectorActor.class), "default"); + final TestActorRef topologyShardActor = TestActorRef.create(getSystem(), + Props.create(MessageCollectorActor.class), "topology"); + + final Map> shardInfoMap = Collections.synchronizedMap( + new HashMap>()); + shardInfoMap.put("default", new AbstractMap.SimpleEntry(defaultShardActor, null)); + shardInfoMap.put("topology", new AbstractMap.SimpleEntry(topologyShardActor, null)); + + final CountDownLatch newShardActorLatch = new CountDownLatch(2); + final Creator creator = new Creator() { + private static final long serialVersionUID = 1L; + @Override + public ShardManager create() throws Exception { + return new ShardManager(ShardManager.builder().cluster(new MockClusterWrapper()).configuration(mockConfig). + datastoreContextFactory(mockFactory).waitTillReadyCountdownLatch(ready). + primaryShardInfoCache(primaryShardInfoCache)) { + @Override + protected ActorRef newShardActor(SchemaContext schemaContext, ShardInformation info) { + Entry entry = shardInfoMap.get(info.getShardName()); + ActorRef ref = null; + if(entry != null) { + ref = entry.getKey(); + entry.setValue(info.getDatastoreContext()); + } + + newShardActorLatch.countDown(); + return ref; + } + }; + } + }; + + JavaTestKit kit = new JavaTestKit(getSystem()); + + final ActorRef shardManager = getSystem().actorOf(Props.create(new DelegatingShardManagerCreator(creator)). + withDispatcher(Dispatchers.DefaultDispatcherId())); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), kit.getRef()); + + assertEquals("Shard actors created", true, newShardActorLatch.await(5, TimeUnit.SECONDS)); + assertEquals("getShardElectionTimeoutFactor", 6, shardInfoMap.get("default").getValue(). + getShardElectionTimeoutFactor()); + assertEquals("getShardElectionTimeoutFactor", 7, shardInfoMap.get("topology").getValue(). + getShardElectionTimeoutFactor()); + + DatastoreContextFactory newMockFactory = newDatastoreContextFactory( + datastoreContextBuilder.shardElectionTimeoutFactor(5).build()); + Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()). + shardElectionTimeoutFactor(66).build()).when(newMockFactory).getShardDatastoreContext("default"); + + Mockito.doReturn(DatastoreContext.newBuilderFrom(datastoreContextBuilder.build()). + shardElectionTimeoutFactor(77).build()).when(newMockFactory).getShardDatastoreContext("topology"); + + shardManager.tell(newMockFactory, kit.getRef()); + + DatastoreContext newContext = MessageCollectorActor.expectFirstMatching(defaultShardActor, DatastoreContext.class); + assertEquals("getShardElectionTimeoutFactor", 66, newContext.getShardElectionTimeoutFactor()); + + newContext = MessageCollectorActor.expectFirstMatching(topologyShardActor, DatastoreContext.class); + assertEquals("getShardElectionTimeoutFactor", 77, newContext.getShardElectionTimeoutFactor()); + + defaultShardActor.tell(PoisonPill.getInstance(), ActorRef.noSender()); + topologyShardActor.tell(PoisonPill.getInstance(), ActorRef.noSender()); } @Test public void testOnReceiveFindPrimaryForNonExistentShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + + shardManager.tell(new FindPrimary("non-existent", false), getRef()); - new JavaTestKit(system) { - { - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); + expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class); + }}; + } + + @Test + public void testOnReceiveFindPrimaryForLocalLeaderShard() throws Exception { + new JavaTestKit(getSystem()) {{ + String memberId = "member-1-shard-default-" + shardMrgIDSuffix; - final ActorRef subject = getSystem().actorOf(props); + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - subject.tell(new FindPrimary("inventory").toSerializable(), getRef()); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - expectMsgEquals(duration("2 seconds"), - new PrimaryNotFound("inventory").toSerializable()); - }}; + DataTree mockDataTree = mock(DataTree.class); + shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree), + DataStoreVersions.CURRENT_VERSION), getRef()); + + MessageCollectorActor.expectFirstMatching(mockShardActor, RegisterRoleChangeListener.class); + shardManager.tell((new RoleChangeNotification(memberId, RaftState.Candidate.name(), + RaftState.Leader.name())), mockShardActor); + + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); + + LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class); + assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), + primaryFound.getPrimaryPath().contains("member-1-shard-default")); + assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree()); + }}; } @Test - public void testOnReceiveFindPrimaryForExistentShard() throws Exception { + public void testOnReceiveFindPrimaryForNonLocalLeaderShardBeforeMemberUp() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - final ActorRef subject = getSystem().actorOf(props); + String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix; + String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix; + shardManager.tell(new RoleChangeNotification(memberId1, + RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); + shardManager.tell(new LeaderStateChanged(memberId1, memberId2, DataStoreVersions.CURRENT_VERSION), mockShardActor); - subject.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); - subject.tell(new ActorInitialized(), defaultShardMockActor); + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); - subject.tell(new FindPrimary(Shard.DEFAULT_NAME).toSerializable(), getRef()); + expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); + }}; + } - expectMsgClass(duration("1 seconds"), PrimaryFound.SERIALIZABLE_CLASS); - } - }; + @Test + public void testOnReceiveFindPrimaryForNonLocalLeaderShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); + + String memberId2 = "member-2-shard-default-" + shardMrgIDSuffix; + MockClusterWrapper.sendMemberUp(shardManager, "member-2", getRef().path().toString()); + + String memberId1 = "member-1-shard-default-" + shardMrgIDSuffix; + shardManager.tell(new RoleChangeNotification(memberId1, + RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); + short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1; + shardManager.tell(new ShardLeaderStateChanged(memberId1, memberId2, Optional.absent(), + leaderVersion), mockShardActor); + + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); + + RemotePrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); + assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), + primaryFound.getPrimaryPath().contains("member-2-shard-default")); + assertEquals("getPrimaryVersion", leaderVersion, primaryFound.getPrimaryVersion()); + }}; } @Test - public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception { + public void testOnReceiveFindPrimaryForUninitializedShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); - final ActorRef subject = getSystem().actorOf(props); + expectMsgClass(duration("5 seconds"), NotInitializedException.class); + }}; + } - subject.tell(new FindLocalShard("inventory"), getRef()); + @Test + public void testOnReceiveFindPrimaryForInitializedShardWithNoRole() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - final String out = new ExpectMsg(duration("3 seconds"), "find local") { - @Override - protected String match(Object in) { - if (in instanceof LocalShardNotFound) { - return ((LocalShardNotFound) in).getShardName(); - } else { - throw noMatch(); - } - } - }.get(); // this extracts the received message + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - assertEquals("inventory", out); + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); + + expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); }}; } @Test - public void testOnReceiveFindLocalShardForExistentShard() throws Exception { + public void testOnReceiveFindPrimaryForFollowerShardWithNoInitialLeaderId() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - final MockClusterWrapper mockClusterWrapper = new MockClusterWrapper(); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", mockClusterWrapper, - new MockConfiguration(), new DatastoreContext()); + String memberId = "member-1-shard-default-" + shardMrgIDSuffix; + shardManager.tell(new RoleChangeNotification(memberId, + RaftState.Candidate.name(), RaftState.Follower.name()), mockShardActor); - final ActorRef subject = getSystem().actorOf(props); + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); - subject.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); - subject.tell(new ActorInitialized(), defaultShardMockActor); + expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); - subject.tell(new FindLocalShard(Shard.DEFAULT_NAME), getRef()); + DataTree mockDataTree = mock(DataTree.class); + shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree), + DataStoreVersions.CURRENT_VERSION), mockShardActor); - final ActorRef out = new ExpectMsg(duration("3 seconds"), "find local") { - @Override - protected ActorRef match(Object in) { - if (in instanceof LocalShardFound) { - return ((LocalShardFound) in).getPath(); - } else { - throw noMatch(); - } - } - }.get(); // this extracts the received message + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, false), getRef()); - assertTrue(out.path().toString(), - out.path().toString().contains("member-1-shard-default-config")); + LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class); + assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), + primaryFound.getPrimaryPath().contains("member-1-shard-default")); + assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree()); }}; } @Test - public void testOnReceiveMemberUp() throws Exception { + public void testOnReceiveFindPrimaryWaitForShardLeader() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); - final ActorRef subject = getSystem().actorOf(props); + // We're passing waitUntilInitialized = true to FindPrimary so the response should be + // delayed until we send ActorInitialized and RoleChangeNotification. + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); - MockClusterWrapper.sendMemberUp(subject, "member-2", getRef().path().toString()); + expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS)); - subject.tell(new FindPrimary("astronauts").toSerializable(), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - final String out = new ExpectMsg(duration("3 seconds"), "primary found") { - // do not put code outside this method, will run afterwards - @Override - protected String match(Object in) { - if (in.getClass().equals(PrimaryFound.SERIALIZABLE_CLASS)) { - PrimaryFound f = PrimaryFound.fromSerializable(in); - return f.getPrimaryPath(); - } else { - throw noMatch(); - } - } - }.get(); // this extracts the received message + expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS)); + + String memberId = "member-1-shard-default-" + shardMrgIDSuffix; + shardManager.tell(new RoleChangeNotification(memberId, + RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor); + + expectNoMsg(FiniteDuration.create(150, TimeUnit.MILLISECONDS)); + + DataTree mockDataTree = mock(DataTree.class); + shardManager.tell(new ShardLeaderStateChanged(memberId, memberId, Optional.of(mockDataTree), + DataStoreVersions.CURRENT_VERSION), mockShardActor); + + LocalPrimaryShardFound primaryFound = expectMsgClass(duration("5 seconds"), LocalPrimaryShardFound.class); + assertTrue("Unexpected primary path " + primaryFound.getPrimaryPath(), + primaryFound.getPrimaryPath().contains("member-1-shard-default")); + assertSame("getLocalShardDataTree", mockDataTree, primaryFound.getLocalShardDataTree() ); + + expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS)); + }}; + } + + @Test + public void testOnReceiveFindPrimaryWaitForReadyWithUninitializedShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); + + expectMsgClass(duration("2 seconds"), NotInitializedException.class); + + shardManager.tell(new ActorInitialized(), mockShardActor); + + expectNoMsg(FiniteDuration.create(200, TimeUnit.MILLISECONDS)); + }}; + } + + @Test + public void testOnReceiveFindPrimaryWaitForReadyWithCandidateShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); + shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix, + null, RaftState.Candidate.name()), mockShardActor); + + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); + + expectMsgClass(duration("2 seconds"), NoShardLeaderException.class); + }}; + } + + @Test + public void testOnReceiveFindPrimaryWaitForReadyWithIsolatedLeaderShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); + shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix, + null, RaftState.IsolatedLeader.name()), mockShardActor); + + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); + + expectMsgClass(duration("2 seconds"), NoShardLeaderException.class); + }}; + } + + @Test + public void testOnReceiveFindPrimaryWaitForReadyWithNoRoleShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); + + shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef()); + + expectMsgClass(duration("2 seconds"), NoShardLeaderException.class); + }}; + } + + @Test + public void testOnReceiveFindPrimaryForRemoteShard() throws Exception { + String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); + + // Create an ActorSystem ShardManager actor for member-1. + + final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1")); + Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); + + ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1"); + + final TestActorRef shardManager1 = TestActorRef.create(system1, + newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1), + new MockConfiguration()), shardManagerID); + + // Create an ActorSystem ShardManager actor for member-2. + + final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2")); + + Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); + + final ActorRef mockShardActor2 = newMockShardActor(system2, "astronauts", "member-2"); + + MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.>builder(). + put("default", Arrays.asList("member-1", "member-2")). + put("astronauts", Arrays.asList("member-2")).build()); + + final TestActorRef shardManager2 = TestActorRef.create(system2, + newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2), + mockConfig2), shardManagerID); + + new JavaTestKit(system1) {{ + + shardManager1.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager2.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + + shardManager2.tell(new ActorInitialized(), mockShardActor2); + + String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix; + short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1; + shardManager2.tell(new ShardLeaderStateChanged(memberId2, memberId2, + Optional.of(mock(DataTree.class)), leaderVersion), mockShardActor2); + shardManager2.tell(new RoleChangeNotification(memberId2, + RaftState.Candidate.name(), RaftState.Leader.name()), mockShardActor2); + + shardManager1.underlyingActor().waitForMemberUp(); + + shardManager1.tell(new FindPrimary("astronauts", false), getRef()); + + RemotePrimaryShardFound found = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); + String path = found.getPrimaryPath(); + assertTrue("Unexpected primary path " + path, path.contains("member-2-shard-astronauts-config")); + assertEquals("getPrimaryVersion", leaderVersion, found.getPrimaryVersion()); + + shardManager2.underlyingActor().verifyFindPrimary(); + + Cluster.get(system2).down(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); + + shardManager1.underlyingActor().waitForMemberRemoved(); + + shardManager1.tell(new FindPrimary("astronauts", false), getRef()); + + expectMsgClass(duration("5 seconds"), PrimaryNotFoundException.class); + }}; + + JavaTestKit.shutdownActorSystem(system1); + JavaTestKit.shutdownActorSystem(system2); + } + + @Test + public void testShardAvailabilityOnChangeOfMemberReachability() throws Exception { + String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); + + // Create an ActorSystem ShardManager actor for member-1. + + final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1")); + Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); + + final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1"); + + final TestActorRef shardManager1 = TestActorRef.create(system1, + newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1), + new MockConfiguration()), shardManagerID); + + // Create an ActorSystem ShardManager actor for member-2. + + final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2")); + + Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); + + final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2"); + + MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.>builder(). + put("default", Arrays.asList("member-1", "member-2")).build()); + + final TestActorRef shardManager2 = TestActorRef.create(system2, + newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2), + mockConfig2), shardManagerID); + + 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")); + + shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper. + createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558")); + + shardManager1.underlyingActor().waitForUnreachableMember(); + + PeerDown peerDown = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class); + assertEquals("getMemberName", "member-2", peerDown.getMemberName()); + MessageCollectorActor.clearMessages(mockShardActor1); + + shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper. + createMemberRemoved("member-2", "akka.tcp://cluster-test@127.0.0.1:2558")); + + MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class); + + shardManager1.tell(new FindPrimary("default", true), getRef()); + + expectMsgClass(duration("5 seconds"), NoShardLeaderException.class); + + shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper. + createReachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558")); + + shardManager1.underlyingActor().waitForReachableMember(); + + PeerUp peerUp = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class); + assertEquals("getMemberName", "member-2", peerUp.getMemberName()); + MessageCollectorActor.clearMessages(mockShardActor1); + + shardManager1.tell(new FindPrimary("default", true), getRef()); + + RemotePrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class); + String path1 = found1.getPrimaryPath(); + assertTrue("Unexpected primary path " + path1, path1.contains("member-2-shard-default-config")); + + shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper. + createMemberUp("member-2", "akka.tcp://cluster-test@127.0.0.1:2558")); + + MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class); - assertTrue(out, out.contains("member-2-shard-astronauts-config")); }}; + + JavaTestKit.shutdownActorSystem(system1); + JavaTestKit.shutdownActorSystem(system2); } @Test - public void testOnReceiveMemberDown() throws Exception { + public void testShardAvailabilityChangeOnMemberUnreachableAndLeadershipChange() throws Exception { + String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); + + // Create an ActorSystem ShardManager actor for member-1. + + final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1")); + Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); + + final ActorRef mockShardActor1 = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1"); + + final TestActorRef shardManager1 = TestActorRef.create(system1, + newPropsShardMgrWithMockShardActor("shardManager1", mockShardActor1, new ClusterWrapperImpl(system1), + new MockConfiguration()), shardManagerID); + + // Create an ActorSystem ShardManager actor for member-2. + + final ActorSystem system2 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2")); + + Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558")); + + final ActorRef mockShardActor2 = newMockShardActor(system2, Shard.DEFAULT_NAME, "member-2"); + + MockConfiguration mockConfig2 = new MockConfiguration(ImmutableMap.>builder(). + put("default", Arrays.asList("member-1", "member-2")).build()); + + final TestActorRef shardManager2 = TestActorRef.create(system2, + newPropsShardMgrWithMockShardActor("shardManager2", mockShardActor2, new ClusterWrapperImpl(system2), + mockConfig2), shardManagerID); + + 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.absent())); + + shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper. + createUnreachableMember("member-2", "akka.tcp://cluster-test@127.0.0.1:2558")); + + shardManager1.underlyingActor().waitForUnreachableMember(); - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); + 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")); + + }}; + + JavaTestKit.shutdownActorSystem(system1); + JavaTestKit.shutdownActorSystem(system2); + } + + + @Test + public void testOnReceiveFindLocalShardForNonExistentShard() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(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 = getSystem().actorOf(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 = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - final ActorRef subject = getSystem().actorOf(props); + shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); - MockClusterWrapper.sendMemberUp(subject, "member-2", getRef().path().toString()); + expectMsgClass(duration("5 seconds"), NotInitializedException.class); + }}; + } - subject.tell(new FindPrimary("astronauts").toSerializable(), getRef()); + @Test + public void testOnReceiveFindLocalShardWaitForShardInitialized() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - expectMsgClass(duration("3 seconds"), PrimaryFound.SERIALIZABLE_CLASS); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); - MockClusterWrapper.sendMemberRemoved(subject, "member-2", getRef().path().toString()); + // We're passing waitUntilInitialized = true to FindLocalShard so the response should be + // delayed until we send ActorInitialized. + Future future = Patterns.ask(shardManager, new FindLocalShard(Shard.DEFAULT_NAME, true), + new Timeout(5, TimeUnit.SECONDS)); - subject.tell(new FindPrimary("astronauts").toSerializable(), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - expectMsgClass(duration("1 seconds"), PrimaryNotFound.SERIALIZABLE_CLASS); + Object resp = Await.result(future, duration("5 seconds")); + assertTrue("Expected: LocalShardFound, Actual: " + resp, resp instanceof LocalShardFound); }}; } @Test - public void testOnRecoveryJournalIsEmptied(){ - MyJournal.addToJournal(1L, new ShardManager.SchemaContextModules( + 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 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(1, MyJournal.get().size()); + assertEquals(false, shardManager.getMBean().getSyncStatus()); - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); + } + + @Test + public void testWhenMultipleShardsPresentSyncStatusMustBeTrueForAllShards() throws Exception{ + TestShardManager shardManager = newTestShardManager(newShardMgrProps(new MockConfiguration() { + @Override + public List 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())); - final ActorRef subject = getSystem().actorOf(props); + // 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()); + + } + + @Test + public void testOnReceiveSwitchShardBehavior() throws Exception { + new JavaTestKit(getSystem()) {{ + final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor()); - // Send message to check that ShardManager is ready - subject.tell(new FindPrimary("unknown").toSerializable(), getRef()); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - expectMsgClass(duration("3 seconds"), PrimaryNotFound.SERIALIZABLE_CLASS); + shardManager.tell(new SwitchShardBehavior(mockShardName, "Leader", 1000), getRef()); - assertEquals(0, MyJournal.get().size()); + SwitchBehavior switchBehavior = MessageCollectorActor.expectFirstMatching(mockShardActor, SwitchBehavior.class); + + assertEquals(RaftState.Leader, switchBehavior.getNewState()); + assertEquals(1000, switchBehavior.getNewTerm()); }}; } @Test - public void testOnRecoveryPreviouslyKnownModulesAreDiscovered() throws Exception { - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); - final TestActorRef subject = - TestActorRef.create(system, props); + public void testOnCreateShard() { + new JavaTestKit(getSystem()) {{ + datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true); + + ActorRef shardManager = getSystem().actorOf(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()); + }}; + } + + @Test + public void testOnCreateShardWithLocalMemberNotInShardConfig() { + new JavaTestKit(getSystem()) {{ + datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true); + + ActorRef shardManager = getSystem().actorOf(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()); + }}; + } + + @Test + public void testOnCreateShardWithNoInitialSchemaContext() { + new JavaTestKit(getSystem()) {{ + ActorRef shardManager = getSystem().actorOf(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()); + }}; + } + + @Test + public void testGetSnapshot() throws Throwable { + JavaTestKit kit = new JavaTestKit(getSystem()); + + MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.>builder(). + put("shard1", Arrays.asList("member-1")). + put("shard2", Arrays.asList("member-1")).build()); + + ActorRef shardManager = getSystem().actorOf(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()); + + kit = new JavaTestKit(getSystem()); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), ActorRef.noSender()); + + shardManager.tell(new FindLocalShard("shard1", true), kit.getRef()); + kit.expectMsgClass(LocalShardFound.class); + shardManager.tell(new FindLocalShard("shard2", true), kit.getRef()); + kit.expectMsgClass(LocalShardFound.class); + + shardManager.tell(GetSnapshot.INSTANCE, kit.getRef()); + + DatastoreSnapshot datastoreSnapshot = kit.expectMsgClass(DatastoreSnapshot.class); - subject.underlyingActor().onReceiveRecover(new ShardManager.SchemaContextModules(ImmutableSet.of("foo"))); + assertEquals("getType", shardMrgIDSuffix, datastoreSnapshot.getType()); + List shardSnapshots = datastoreSnapshot.getShardSnapshots(); + Set actualShardNames = new HashSet<>(); + for(ShardSnapshot s: shardSnapshots) { + actualShardNames.add(s.getName()); + } + + assertEquals("Shard names", Sets.newHashSet("shard1", "shard2"), actualShardNames); + + shardManager.tell(PoisonPill.getInstance(), ActorRef.noSender()); + } - Collection knownModules = subject.underlyingActor().getKnownModules(); + @Test + public void testAddShardReplicaForNonExistentShardConfig() throws Exception { + new JavaTestKit(getSystem()) {{ + ActorRef shardManager = getSystem().actorOf(newShardMgrProps( + new ConfigurationImpl(new EmptyModuleShardConfigProvider()))); + + shardManager.tell(new AddShardReplica("model-inventory"), getRef()); + Status.Failure resp = expectMsgClass(duration("2 seconds"), Status.Failure.class); - assertTrue(knownModules.contains("foo")); + assertEquals("Failure obtained", true, + (resp.cause() instanceof IllegalArgumentException)); }}; } @Test - public void testOnUpdateSchemaContextUpdateKnownModulesIfTheyContainASuperSetOfTheKnownModules() - throws Exception { - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); - final TestActorRef subject = - TestActorRef.create(system, props); + public void testAddShardReplica() throws Exception { + MockConfiguration mockConfig = + new MockConfiguration(ImmutableMap.>builder(). + put("default", Arrays.asList("member-1", "member-2")). + put("astronauts", Arrays.asList("member-2")).build()); + + String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString(); + + // Create an ActorSystem ShardManager actor for member-1. + final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("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 newReplicaShardManager = TestActorRef.create(system1, + newPropsShardMgrWithMockShardActor("shardManager1", mockDefaultShardActor, + new ClusterWrapperImpl(system1), mockConfig), shardManagerID); + + // Create an ActorSystem ShardManager actor for member-2. + final ActorSystem system2 = ActorSystem.create("cluster-test", + ConfigFactory.load().getConfig("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 mockShardLeaderActor = + TestActorRef.create(system2, Props.create(MockRespondActor.class), name); + final TestActorRef leaderShardManager = TestActorRef.create(system2, + newPropsShardMgrWithMockShardActor("shardManager2", mockShardLeaderActor, + new ClusterWrapperImpl(system2), mockConfig), 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(); + + //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()); + newReplicaShardManager.underlyingActor() + .verifySnapshotPersisted(Sets.newHashSet("default", "astronauts")); + expectMsgClass(duration("5 seconds"), Status.Success.class); + }}; + + JavaTestKit.shutdownActorSystem(system1); + JavaTestKit.shutdownActorSystem(system2); + } - Collection knownModules = subject.underlyingActor().getKnownModules(); + @Test + public void testAddShardReplicaWithPreExistingReplicaInRemoteShardLeader() throws Exception { + new JavaTestKit(getSystem()) {{ + TestActorRef shardManager = TestActorRef.create(getSystem(), + newPropsShardMgrWithMockShardActor(), shardMgrID); - assertEquals(0, knownModules.size()); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + shardManager.tell(new ActorInitialized(), mockShardActor); - SchemaContext schemaContext = mock(SchemaContext.class); - Set moduleIdentifierSet = new HashSet<>(); + 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); - ModuleIdentifier foo = mock(ModuleIdentifier.class); - when(foo.getNamespace()).thenReturn(new URI("foo")); + MockClusterWrapper.sendMemberUp(shardManager, "leader-member", leaderShardActor.path().toString()); - moduleIdentifierSet.add(foo); + 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.absent(), + DataStoreVersions.CURRENT_VERSION), mockShardActor); - when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet); + shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef()); - subject.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext)); + MessageCollectorActor.expectFirstMatching(leaderShardActor, AddServer.class); - assertTrue(knownModules.contains("foo")); + Failure resp = expectMsgClass(duration("5 seconds"), Failure.class); + assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass()); - assertEquals(1, knownModules.size()); + shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); + expectMsgClass(duration("5 seconds"), LocalShardFound.class); - ModuleIdentifier bar = mock(ModuleIdentifier.class); - when(bar.getNamespace()).thenReturn(new URI("bar")); + // Send message again to verify previous in progress state is cleared - moduleIdentifierSet.add(bar); + shardManager.tell(new AddShardReplica(Shard.DEFAULT_NAME), getRef()); + resp = expectMsgClass(duration("5 seconds"), Failure.class); + assertEquals("Failure cause", AlreadyExistsException.class, resp.cause().getClass()); - subject.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext)); + // Send message again with an AddServer timeout to verify the pre-existing shard actor isn't terminated. - assertTrue(knownModules.contains("bar")); + 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); - assertEquals(2, knownModules.size()); + shardManager.tell(new FindLocalShard(Shard.DEFAULT_NAME, false), getRef()); + expectMsgClass(duration("5 seconds"), LocalShardFound.class); + leaderShardActor.tell(PoisonPill.getInstance(), ActorRef.noSender()); }}; + } + @Test + public void testAddShardReplicaWithPreExistingLocalReplicaLeader() throws Exception { + new JavaTestKit(getSystem()) {{ + String memberId = "member-1-shard-default-" + shardMrgIDSuffix; + ActorRef shardManager = getSystem().actorOf(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); + }}; } + @Test + public void testAddShardReplicaWithAddServerReplyFailure() throws Exception { + new JavaTestKit(getSystem()) {{ + JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem()); + + MockConfiguration mockConfig = + new MockConfiguration(ImmutableMap.>builder(). + put("astronauts", Arrays.asList("member-2")).build()); + + ActorRef mockNewReplicaShardActor = newMockShardActor(getSystem(), "astronauts", "member-1"); + TestActorRef shardManager = TestActorRef.create(getSystem(), + newPropsShardMgrWithMockShardActor("newReplicaShardManager", mockNewReplicaShardActor, + new MockClusterWrapper(), mockConfig), 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()); + }}; + } @Test - public void testOnUpdateSchemaContextDoNotUpdateKnownModulesIfTheyDoNotContainASuperSetOfKnownModules() - throws Exception { - new JavaTestKit(system) {{ - final Props props = ShardManager - .props("config", new MockClusterWrapper(), - new MockConfiguration(), new DatastoreContext()); - final TestActorRef subject = - TestActorRef.create(system, props); + public void testAddShardReplicaWithAlreadyInProgress() throws Exception { + new JavaTestKit(getSystem()) {{ + JavaTestKit mockShardLeaderKit = new JavaTestKit(getSystem()); + JavaTestKit secondRequestKit = new JavaTestKit(getSystem()); - Collection knownModules = subject.underlyingActor().getKnownModules(); + MockConfiguration mockConfig = + new MockConfiguration(ImmutableMap.>builder(). + put("astronauts", Arrays.asList("member-2")).build()); - assertEquals(0, knownModules.size()); + TestActorRef shardManager = TestActorRef.create(getSystem(), + newPropsShardMgrWithMockShardActor("newReplicaShardManager", mockShardActor, + new MockClusterWrapper(), mockConfig), shardMgrID); + shardManager.underlyingActor().setMessageInterceptor(newFindPrimaryInterceptor(mockShardLeaderKit.getRef())); - SchemaContext schemaContext = mock(SchemaContext.class); - Set moduleIdentifierSet = new HashSet<>(); + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); - ModuleIdentifier foo = mock(ModuleIdentifier.class); - when(foo.getNamespace()).thenReturn(new URI("foo")); + shardManager.tell(new AddShardReplica("astronauts"), getRef()); - moduleIdentifierSet.add(foo); + mockShardLeaderKit.expectMsgClass(AddServer.class); - when(schemaContext.getAllModuleIdentifiers()).thenReturn(moduleIdentifierSet); + shardManager.tell(new AddShardReplica("astronauts"), secondRequestKit.getRef()); - subject.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext)); + secondRequestKit.expectMsgClass(duration("5 seconds"), Failure.class); + }}; + } - assertTrue(knownModules.contains("foo")); + @Test + public void testAddShardReplicaWithFindPrimaryTimeout() throws Exception { + new JavaTestKit(getSystem()) {{ + MockConfiguration mockConfig = new MockConfiguration(ImmutableMap.>builder(). + put("astronauts", Arrays.asList("member-2")).build()); - assertEquals(1, knownModules.size()); + ActorRef newReplicaShardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor( + "shardManager", mockShardActor, new MockClusterWrapper(), mockConfig)); - //Create a completely different SchemaContext with only the bar module in it - schemaContext = mock(SchemaContext.class); - moduleIdentifierSet = new HashSet<>(); - ModuleIdentifier bar = mock(ModuleIdentifier.class); - when(bar.getNamespace()).thenReturn(new URI("bar")); + newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + MockClusterWrapper.sendMemberUp(newReplicaShardManager, "member-2", getRef().path().toString()); - moduleIdentifierSet.add(bar); + newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef()); + Status.Failure resp = expectMsgClass(duration("5 seconds"), Status.Failure.class); + assertEquals("Failure obtained", true, + (resp.cause() instanceof RuntimeException)); + }}; + } - subject.underlyingActor().onReceiveCommand(new UpdateSchemaContext(schemaContext)); + @Test + public void testRemoveShardReplicaForNonExistentShard() throws Exception { + new JavaTestKit(getSystem()) {{ + ActorRef shardManager = getSystem().actorOf(newShardMgrProps( + new ConfigurationImpl(new EmptyModuleShardConfigProvider()))); + + shardManager.tell(new RemoveShardReplica("model-inventory"), getRef()); + Status.Failure resp = expectMsgClass(duration("2 seconds"), Status.Failure.class); + assertEquals("Failure obtained", true, + (resp.cause() instanceof IllegalArgumentException)); + }}; + + } + + @Test + public void testServerRemovedShardActorNotRunning() throws Exception { + new JavaTestKit(getSystem()) {{ + MockConfiguration mockConfig = + new MockConfiguration(ImmutableMap.>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 shardManager = TestActorRef.create(getSystem(), + newShardMgrProps(mockConfig)); + + shardManager.underlyingActor().waitForRecoveryComplete(); - assertFalse(knownModules.contains("bar")); + shardManager.tell(new FindLocalShard("people", false), getRef()); + expectMsgClass(duration("5 seconds"), NotInitializedException.class); - assertEquals(1, knownModules.size()); + 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(); + final ShardIdentifier shardId = builder.shardName("default").memberName("member-1").type("config1").build(); + shardManager.tell(new ServerRemoved(shardId.toString()), getRef()); + + shardManager.underlyingActor().verifySnapshotPersisted(Sets.newHashSet("people")); }}; + } + + @Test + public void testServerRemovedShardActorRunning() throws Exception { + new JavaTestKit(getSystem()) {{ + MockConfiguration mockConfig = + new MockConfiguration(ImmutableMap.>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 shardManager = TestActorRef.create(getSystem(), + newShardMgrProps(mockConfig)); + + TestActorRef shard = TestActorRef.create(getSystem(), MessageCollectorActor.props()); + + watch(shard); + shardManager.underlyingActor().waitForRecoveryComplete(); + + shardManager.underlyingActor().addShardActor("default", shard); + + shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef()); + + 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(); + final ShardIdentifier shardId = builder.shardName("default").memberName("member-1").type("config1").build(); + shardManager.tell(new ServerRemoved(shardId.toString()), getRef()); + + shardManager.underlyingActor().verifySnapshotPersisted(Sets.newHashSet("people")); + + expectMsgClass(duration("5 seconds"), Terminated.class); + }}; } - private void sleep(long period){ - Uninterruptibles.sleepUninterruptibly(period, TimeUnit.MILLISECONDS); + @Test + public void testShardPersistenceWithRestoredData() throws Exception { + new JavaTestKit(getSystem()) {{ + MockConfiguration mockConfig = + new MockConfiguration(ImmutableMap.>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 newRestoredShardManager = TestActorRef.create(getSystem(), + 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); + }}; } - public static class MyJournal extends AsyncWriteJournal { - private static Map journal = Maps.newTreeMap(); + private static class TestShardManager extends ShardManager { + private final CountDownLatch recoveryComplete = new CountDownLatch(1); + private final CountDownLatch snapshotPersist = new CountDownLatch(1); + private ShardManagerSnapshot snapshot; + private Map shardActors = new HashMap<>(); - public static void addToJournal(Long sequenceNr, Object value){ - journal.put(sequenceNr, value); + private TestShardManager(Builder builder) { + super(builder); } - public static Map get(){ - return journal; + @Override + public void handleRecover(Object message) throws Exception { + try { + super.handleRecover(message); + } finally { + if(message instanceof RecoveryCompleted) { + recoveryComplete.countDown(); + } + } } - public static void clear(){ - journal.clear(); + void waitForRecoveryComplete() { + assertEquals("Recovery complete", true, + Uninterruptibles.awaitUninterruptibly(recoveryComplete, 5, TimeUnit.SECONDS)); } - @Override public Future doAsyncReplayMessages(final String persistenceId, long fromSequenceNr, long toSequenceNr, long max, - final Procedure replayCallback) { - if(journal.size() == 0){ - return Futures.successful(null); + public static Builder builder(DatastoreContext.Builder datastoreContextBuilder) { + return new Builder(datastoreContextBuilder); + } + + private static class Builder extends ShardManager.Builder { + Builder(DatastoreContext.Builder datastoreContextBuilder) { + cluster(new MockClusterWrapper()).configuration(new MockConfiguration()); + datastoreContextFactory(newDatastoreContextFactory(datastoreContextBuilder.build())); + waitTillReadyCountdownLatch(ready).primaryShardInfoCache(new PrimaryShardInfoFutureCache()); + } + + @Override + public Props props() { + verify(); + return Props.create(TestShardManager.class, this); } - return Futures.future(new Callable() { - @Override - public Void call() throws Exception { - for (Map.Entry entry : journal.entrySet()) { - PersistentRepr persistentMessage = - new PersistentImpl(entry.getValue(), entry.getKey(), persistenceId, - false, null, null); - replayCallback.apply(persistentMessage); - } - return null; - } - }, context().dispatcher()); } - @Override public Future doAsyncReadHighestSequenceNr(String s, long l) { - return Futures.successful(-1L); + @Override + public void saveSnapshot(Object obj) { + snapshot = (ShardManagerSnapshot) obj; + snapshotPersist.countDown(); } - @Override public Future doAsyncWriteMessages( - final Iterable persistentReprs) { - return Futures.future(new Callable() { - @Override - public Void call() throws Exception { - for (PersistentRepr repr : persistentReprs){ - if(repr.payload() instanceof ShardManager.SchemaContextModules) { - journal.put(repr.sequenceNr(), repr.payload()); - } + void verifySnapshotPersisted(Set 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()); + } + return super.newShardActor(schemaContext, info); + } + + public void addShardActor(String shardName, ActorRef actorRef){ + shardActors.put(shardName, actorRef); + } + } + + private static class DelegatingShardManagerCreator implements Creator { + private static final long serialVersionUID = 1L; + private final Creator delegate; + + public DelegatingShardManagerCreator(Creator delegate) { + this.delegate = delegate; + } + + @Override + public ShardManager create() throws Exception { + return delegate.create(); + } + } + + interface MessageInterceptor extends Function { + boolean canIntercept(Object message); + } + + private MessageInterceptor newFindPrimaryInterceptor(final ActorRef primaryActor) { + return new MessageInterceptor(){ + @Override + public Object apply(Object message) { + return new RemotePrimaryShardFound(Serialization.serializedActorPath(primaryActor), (short) 1); + } + + @Override + public boolean canIntercept(Object message) { + return message instanceof FindPrimary; + } + }; + } + + private static class ForwardingShardManager extends ShardManager { + 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 final ActorRef shardActor; + private final String name; + private final CountDownLatch snapshotPersist = new CountDownLatch(1); + private ShardManagerSnapshot snapshot; + private volatile MessageInterceptor messageInterceptor; + + public ForwardingShardManager(Builder builder, String name, ActorRef shardActor) { + super(builder); + this.shardActor = shardActor; + this.name = name; + } + + void setMessageInterceptor(MessageInterceptor messageInterceptor) { + this.messageInterceptor = messageInterceptor; + } + + + @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(); } - return null; } - }, context().dispatcher()); + } + } + + @Override + public String persistenceId() { + return name; + } + + @Override + protected ActorRef newShardActor(SchemaContext schemaContext, ShardInformation info) { + return shardActor; + } + + 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); } - @Override public Future doAsyncWriteConfirmations( - Iterable persistentConfirmations) { - return Futures.successful(null); + void waitForReachableMember() { + assertEquals("ReachableMember received", true, + Uninterruptibles.awaitUninterruptibly(memberReachableReceived, 5, TimeUnit.SECONDS)); + memberReachableReceived = new CountDownLatch(1); } - @Override public Future doAsyncDeleteMessages(Iterable persistentIds, - boolean b) { - clear(); - return Futures.successful(null); + void verifyFindPrimary() { + assertEquals("FindPrimary received", true, + Uninterruptibles.awaitUninterruptibly(findPrimaryMessageReceived, 5, TimeUnit.SECONDS)); + findPrimaryMessageReceived = new CountDownLatch(1); } - @Override public Future doAsyncDeleteMessagesTo(String s, long l, boolean b) { - clear(); - return Futures.successful(null); + @Override + public void saveSnapshot(Object obj) { + snapshot = (ShardManagerSnapshot) obj; + snapshotPersist.countDown(); + } + + void verifySnapshotPersisted(Set shardList) { + assertEquals("saveSnapshot invoked", true, + Uninterruptibles.awaitUninterruptibly(snapshotPersist, 5, TimeUnit.SECONDS)); + assertEquals("Shard Persisted", shardList, Sets.newHashSet(snapshot.getShardList())); + } + } + + private static class MockRespondActor extends MessageCollectorActor { + static final String CLEAR_RESPONSE = "clear-response"; + + private volatile Object responseMsg; + + @SuppressWarnings("unused") + public MockRespondActor() { + } + + @SuppressWarnings("unused") + public MockRespondActor(Object responseMsg) { + this.responseMsg = responseMsg; + } + + public void updateResponse(Object response) { + responseMsg = response; + } + + @Override + public void onReceive(Object message) throws Exception { + super.onReceive(message); + if (message instanceof AddServer) { + if (responseMsg != null) { + getSender().tell(responseMsg, getSelf()); + } + } if(message.equals(CLEAR_RESPONSE)) { + responseMsg = null; + } } } }