opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/RaftActorTest.java

   1 /*
   2  * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.cluster.raft;
  10
  11 import static org.junit.Assert.assertArrayEquals;
  12 import static org.junit.Assert.assertEquals;
  13 import static org.junit.Assert.assertNotNull;
  14 import static org.junit.Assert.assertNotSame;
  15 import static org.junit.Assert.assertNull;
  16 import static org.junit.Assert.assertSame;
  17 import static org.junit.Assert.assertTrue;
  18 import static org.mockito.Matchers.any;
  19 import static org.mockito.Matchers.anyObject;
  20 import static org.mockito.Matchers.eq;
  21 import static org.mockito.Matchers.same;
  22 import static org.mockito.Mockito.doReturn;
  23 import static org.mockito.Mockito.mock;
  24 import static org.mockito.Mockito.never;
  25 import static org.mockito.Mockito.reset;
  26 import static org.mockito.Mockito.timeout;
  27 import static org.mockito.Mockito.verify;
  28 import akka.actor.ActorRef;
  29 import akka.actor.PoisonPill;
  30 import akka.actor.Props;
  31 import akka.actor.Status.Failure;
  32 import akka.actor.Terminated;
  33 import akka.dispatch.Dispatchers;
  34 import akka.japi.Procedure;
  35 import akka.persistence.SaveSnapshotFailure;
  36 import akka.persistence.SaveSnapshotSuccess;
  37 import akka.persistence.SnapshotMetadata;
  38 import akka.persistence.SnapshotOffer;
  39 import akka.testkit.JavaTestKit;
  40 import akka.testkit.TestActorRef;
  41 import com.google.common.base.Optional;
  42 import com.google.common.collect.ImmutableMap;
  43 import com.google.common.util.concurrent.Uninterruptibles;
  44 import com.google.protobuf.ByteString;
  45 import java.io.ByteArrayOutputStream;
  46 import java.io.ObjectOutputStream;
  47 import java.util.ArrayList;
  48 import java.util.Arrays;
  49 import java.util.Collections;
  50 import java.util.HashMap;
  51 import java.util.List;
  52 import java.util.Map;
  53 import java.util.concurrent.TimeUnit;
  54 import java.util.concurrent.TimeoutException;
  55 import org.apache.commons.lang3.SerializationUtils;
  56 import org.junit.After;
  57 import org.junit.Before;
  58 import org.junit.Test;
  59 import org.mockito.ArgumentCaptor;
  60 import org.opendaylight.controller.cluster.DataPersistenceProvider;
  61 import org.opendaylight.controller.cluster.NonPersistentDataProvider;
  62 import org.opendaylight.controller.cluster.PersistentDataProvider;
  63 import org.opendaylight.controller.cluster.notifications.LeaderStateChanged;
  64 import org.opendaylight.controller.cluster.notifications.RoleChanged;
  65 import org.opendaylight.controller.cluster.raft.MockRaftActorContext.MockPayload;
  66 import org.opendaylight.controller.cluster.raft.ServerConfigurationPayload.ServerInfo;
  67 import org.opendaylight.controller.cluster.raft.base.messages.ApplyJournalEntries;
  68 import org.opendaylight.controller.cluster.raft.base.messages.ApplyLogEntries;
  69 import org.opendaylight.controller.cluster.raft.base.messages.ApplySnapshot;
  70 import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
  71 import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshot;
  72 import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
  73 import org.opendaylight.controller.cluster.raft.base.messages.DeleteEntries;
  74 import org.opendaylight.controller.cluster.raft.base.messages.SendHeartBeat;
  75 import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior;
  76 import org.opendaylight.controller.cluster.raft.base.messages.UpdateElectionTerm;
  77 import org.opendaylight.controller.cluster.raft.behaviors.Follower;
  78 import org.opendaylight.controller.cluster.raft.behaviors.Leader;
  79 import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
  80 import org.opendaylight.controller.cluster.raft.client.messages.GetSnapshot;
  81 import org.opendaylight.controller.cluster.raft.client.messages.GetSnapshotReply;
  82 import org.opendaylight.controller.cluster.raft.messages.AppendEntries;
  83 import org.opendaylight.controller.cluster.raft.messages.AppendEntriesReply;
  84 import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
  85 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
  86 import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore;
  87 import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
  88 import org.slf4j.Logger;
  89 import org.slf4j.LoggerFactory;
  90 import scala.concurrent.duration.Duration;
  91 import scala.concurrent.duration.FiniteDuration;
  92
  93 public class RaftActorTest extends AbstractActorTest {
  94
  95     static final Logger TEST_LOG = LoggerFactory.getLogger(RaftActorTest.class);
  96
  97     private TestActorFactory factory;
  98
  99     @Before
 100     public void setUp(){
 101         factory = new TestActorFactory(getSystem());
 102     }
 103
 104     @After
 105     public void tearDown() throws Exception {
 106         factory.close();
 107         InMemoryJournal.clear();
 108         InMemorySnapshotStore.clear();
 109     }
 110
 111     @Test
 112     public void testConstruction() {
 113         new RaftActorTestKit(getSystem(), "testConstruction").waitUntilLeader();
 114     }
 115
 116     @Test
 117     public void testFindLeaderWhenLeaderIsSelf(){
 118         RaftActorTestKit kit = new RaftActorTestKit(getSystem(), "testFindLeader");
 119         kit.waitUntilLeader();
 120     }
 121
 122
 123     @Test
 124     public void testRaftActorRecoveryWithPersistenceEnabled() throws Exception {
 125         TEST_LOG.info("testRaftActorRecoveryWithPersistenceEnabled starting");
 126
 127         new JavaTestKit(getSystem()) {{
 128             String persistenceId = factory.generateActorId("follower-");
 129
 130             DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 131
 132             // Set the heartbeat interval high to essentially disable election otherwise the test
 133             // may fail if the actor is switched to Leader and the commitIndex is set to the last
 134             // log entry.
 135             config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 136
 137             ImmutableMap<String, String> peerAddresses = ImmutableMap.<String, String>builder().put("member1", "address").build();
 138             ActorRef followerActor = factory.createActor(MockRaftActor.props(persistenceId,
 139                     peerAddresses, config), persistenceId);
 140
 141             watch(followerActor);
 142
 143             List<ReplicatedLogEntry> snapshotUnappliedEntries = new ArrayList<>();
 144             ReplicatedLogEntry entry1 = new MockRaftActorContext.MockReplicatedLogEntry(1, 4,
 145                     new MockRaftActorContext.MockPayload("E"));
 146             snapshotUnappliedEntries.add(entry1);
 147
 148             int lastAppliedDuringSnapshotCapture = 3;
 149             int lastIndexDuringSnapshotCapture = 4;
 150
 151             // 4 messages as part of snapshot, which are applied to state
 152             ByteString snapshotBytes = fromObject(Arrays.asList(
 153                     new MockRaftActorContext.MockPayload("A"),
 154                     new MockRaftActorContext.MockPayload("B"),
 155                     new MockRaftActorContext.MockPayload("C"),
 156                     new MockRaftActorContext.MockPayload("D")));
 157
 158             Snapshot snapshot = Snapshot.create(snapshotBytes.toByteArray(),
 159                     snapshotUnappliedEntries, lastIndexDuringSnapshotCapture, 1,
 160                     lastAppliedDuringSnapshotCapture, 1);
 161             InMemorySnapshotStore.addSnapshot(persistenceId, snapshot);
 162
 163             // add more entries after snapshot is taken
 164             List<ReplicatedLogEntry> entries = new ArrayList<>();
 165             ReplicatedLogEntry entry2 = new MockRaftActorContext.MockReplicatedLogEntry(1, 5,
 166                     new MockRaftActorContext.MockPayload("F", 2));
 167             ReplicatedLogEntry entry3 = new MockRaftActorContext.MockReplicatedLogEntry(1, 6,
 168                     new MockRaftActorContext.MockPayload("G", 3));
 169             ReplicatedLogEntry entry4 = new MockRaftActorContext.MockReplicatedLogEntry(1, 7,
 170                     new MockRaftActorContext.MockPayload("H", 4));
 171             entries.add(entry2);
 172             entries.add(entry3);
 173             entries.add(entry4);
 174
 175             int lastAppliedToState = 5;
 176             int lastIndex = 7;
 177
 178             InMemoryJournal.addEntry(persistenceId, 5, entry2);
 179             // 2 entries are applied to state besides the 4 entries in snapshot
 180             InMemoryJournal.addEntry(persistenceId, 6, new ApplyJournalEntries(lastAppliedToState));
 181             InMemoryJournal.addEntry(persistenceId, 7, entry3);
 182             InMemoryJournal.addEntry(persistenceId, 8, entry4);
 183
 184             // kill the actor
 185             followerActor.tell(PoisonPill.getInstance(), null);
 186             expectMsgClass(duration("5 seconds"), Terminated.class);
 187
 188             unwatch(followerActor);
 189
 190             //reinstate the actor
 191             TestActorRef<MockRaftActor> ref = factory.createTestActor(
 192                     MockRaftActor.props(persistenceId, peerAddresses, config));
 193
 194             MockRaftActor mockRaftActor = ref.underlyingActor();
 195
 196             mockRaftActor.waitForRecoveryComplete();
 197
 198             RaftActorContext context = mockRaftActor.getRaftActorContext();
 199             assertEquals("Journal log size", snapshotUnappliedEntries.size() + entries.size(),
 200                     context.getReplicatedLog().size());
 201             assertEquals("Journal data size", 10, context.getReplicatedLog().dataSize());
 202             assertEquals("Last index", lastIndex, context.getReplicatedLog().lastIndex());
 203             assertEquals("Last applied", lastAppliedToState, context.getLastApplied());
 204             assertEquals("Commit index", lastAppliedToState, context.getCommitIndex());
 205             assertEquals("Recovered state size", 6, mockRaftActor.getState().size());
 206
 207             mockRaftActor.waitForInitializeBehaviorComplete();
 208
 209             assertEquals("getRaftState", RaftState.Follower, mockRaftActor.getRaftState());
 210         }};
 211
 212         TEST_LOG.info("testRaftActorRecoveryWithPersistenceEnabled ending");
 213     }
 214
 215     @Test
 216     public void testRaftActorRecoveryWithPersistenceDisabled() throws Exception {
 217         new JavaTestKit(getSystem()) {{
 218             String persistenceId = factory.generateActorId("follower-");
 219
 220             DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 221
 222             config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 223
 224             TestActorRef<MockRaftActor> ref = factory.createTestActor(MockRaftActor.props(persistenceId,
 225                     ImmutableMap.<String, String>builder().put("member1", "address").build(),
 226                     config, new NonPersistentDataProvider()), persistenceId);
 227
 228             MockRaftActor mockRaftActor = ref.underlyingActor();
 229
 230             mockRaftActor.waitForRecoveryComplete();
 231
 232             mockRaftActor.waitForInitializeBehaviorComplete();
 233
 234             assertEquals("getRaftState", RaftState.Follower, mockRaftActor.getRaftState());
 235         }};
 236     }
 237
 238     @Test
 239     public void testUpdateElectionTermPersistedWithPersistenceDisabled() throws Exception {
 240         new JavaTestKit(getSystem()) {{
 241             String persistenceId = factory.generateActorId("follower-");
 242             DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 243             config.setHeartBeatInterval(new FiniteDuration(100, TimeUnit.MILLISECONDS));
 244             config.setElectionTimeoutFactor(1);
 245
 246             InMemoryJournal.addWriteMessagesCompleteLatch(persistenceId, 1);
 247
 248             TestActorRef<MockRaftActor> ref = factory.createTestActor(MockRaftActor.props(persistenceId,
 249                     ImmutableMap.<String, String>builder().put("member1", "address").build(),
 250                     config, new NonPersistentDataProvider()).
 251                             withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
 252
 253             InMemoryJournal.waitForWriteMessagesComplete(persistenceId);
 254             List<UpdateElectionTerm> entries = InMemoryJournal.get(persistenceId, UpdateElectionTerm.class);
 255             assertEquals("UpdateElectionTerm entries", 1, entries.size());
 256             UpdateElectionTerm updateEntry = entries.get(0);
 257
 258             factory.killActor(ref, this);
 259
 260             config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 261             ref = factory.createTestActor(MockRaftActor.props(persistenceId,
 262                     ImmutableMap.<String, String>builder().put("member1", "address").build(), config,
 263                     new NonPersistentDataProvider()).
 264                             withDispatcher(Dispatchers.DefaultDispatcherId()),
 265                             factory.generateActorId("follower-"));
 266
 267             MockRaftActor actor = ref.underlyingActor();
 268             actor.waitForRecoveryComplete();
 269
 270             RaftActorContext newContext = actor.getRaftActorContext();
 271             assertEquals("electionTerm", updateEntry.getCurrentTerm(),
 272                     newContext.getTermInformation().getCurrentTerm());
 273             assertEquals("votedFor", updateEntry.getVotedFor(), newContext.getTermInformation().getVotedFor());
 274
 275             entries = InMemoryJournal.get(persistenceId, UpdateElectionTerm.class);
 276             assertEquals("UpdateElectionTerm entries", 1, entries.size());
 277         }};
 278     }
 279
 280     @Test
 281     public void testRaftActorForwardsToRaftActorRecoverySupport() {
 282         String persistenceId = factory.generateActorId("leader-");
 283
 284         DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 285
 286         config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 287
 288         TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
 289                 Collections.<String, String>emptyMap(), config), persistenceId);
 290
 291         MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
 292
 293         // Wait for akka's recovery to complete so it doesn't interfere.
 294         mockRaftActor.waitForRecoveryComplete();
 295
 296         RaftActorRecoverySupport mockSupport = mock(RaftActorRecoverySupport.class);
 297         mockRaftActor.setRaftActorRecoverySupport(mockSupport );
 298
 299         Snapshot snapshot = Snapshot.create(new byte[]{1}, Collections.<ReplicatedLogEntry>emptyList(), 3, 1, 3, 1);
 300         SnapshotOffer snapshotOffer = new SnapshotOffer(new SnapshotMetadata("test", 6, 12345), snapshot);
 301         mockRaftActor.handleRecover(snapshotOffer);
 302
 303         MockRaftActorContext.MockReplicatedLogEntry logEntry = new MockRaftActorContext.MockReplicatedLogEntry(1,
 304                 1, new MockRaftActorContext.MockPayload("1", 5));
 305         mockRaftActor.handleRecover(logEntry);
 306
 307         ApplyJournalEntries applyJournalEntries = new ApplyJournalEntries(2);
 308         mockRaftActor.handleRecover(applyJournalEntries);
 309
 310         ApplyLogEntries applyLogEntries = new ApplyLogEntries(0);
 311         mockRaftActor.handleRecover(applyLogEntries);
 312
 313         DeleteEntries deleteEntries = new DeleteEntries(1);
 314         mockRaftActor.handleRecover(deleteEntries);
 315
 316         org.opendaylight.controller.cluster.raft.RaftActor.DeleteEntries deprecatedDeleteEntries =
 317                 new org.opendaylight.controller.cluster.raft.RaftActor.DeleteEntries(1);
 318         mockRaftActor.handleRecover(deprecatedDeleteEntries);
 319
 320         UpdateElectionTerm updateElectionTerm = new UpdateElectionTerm(5, "member2");
 321         mockRaftActor.handleRecover(updateElectionTerm);
 322
 323         org.opendaylight.controller.cluster.raft.RaftActor.UpdateElectionTerm deprecatedUpdateElectionTerm =
 324                 new org.opendaylight.controller.cluster.raft.RaftActor.UpdateElectionTerm(6, "member3");
 325         mockRaftActor.handleRecover(deprecatedUpdateElectionTerm);
 326
 327         verify(mockSupport).handleRecoveryMessage(same(snapshotOffer), any(PersistentDataProvider.class));
 328         verify(mockSupport).handleRecoveryMessage(same(logEntry), any(PersistentDataProvider.class));
 329         verify(mockSupport).handleRecoveryMessage(same(applyJournalEntries), any(PersistentDataProvider.class));
 330         verify(mockSupport).handleRecoveryMessage(same(applyLogEntries), any(PersistentDataProvider.class));
 331         verify(mockSupport).handleRecoveryMessage(same(deleteEntries), any(PersistentDataProvider.class));
 332         verify(mockSupport).handleRecoveryMessage(same(deprecatedDeleteEntries), any(PersistentDataProvider.class));
 333         verify(mockSupport).handleRecoveryMessage(same(updateElectionTerm), any(PersistentDataProvider.class));
 334         verify(mockSupport).handleRecoveryMessage(same(deprecatedUpdateElectionTerm), any(PersistentDataProvider.class));
 335     }
 336
 337     @Test
 338     public void testRaftActorForwardsToRaftActorSnapshotMessageSupport() {
 339         String persistenceId = factory.generateActorId("leader-");
 340
 341         DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 342
 343         config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 344
 345         RaftActorSnapshotMessageSupport mockSupport = mock(RaftActorSnapshotMessageSupport.class);
 346
 347         TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
 348                 config(config).snapshotMessageSupport(mockSupport).props());
 349
 350         MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
 351
 352         // Wait for akka's recovery to complete so it doesn't interfere.
 353         mockRaftActor.waitForRecoveryComplete();
 354
 355         ApplySnapshot applySnapshot = new ApplySnapshot(mock(Snapshot.class));
 356         doReturn(true).when(mockSupport).handleSnapshotMessage(same(applySnapshot), any(ActorRef.class));
 357         mockRaftActor.handleCommand(applySnapshot);
 358
 359         CaptureSnapshot captureSnapshot = new CaptureSnapshot(1, 1, 1, 1, 0, 1, null);
 360         doReturn(true).when(mockSupport).handleSnapshotMessage(same(captureSnapshot), any(ActorRef.class));
 361         mockRaftActor.handleCommand(captureSnapshot);
 362
 363         CaptureSnapshotReply captureSnapshotReply = new CaptureSnapshotReply(new byte[0]);
 364         doReturn(true).when(mockSupport).handleSnapshotMessage(same(captureSnapshotReply), any(ActorRef.class));
 365         mockRaftActor.handleCommand(captureSnapshotReply);
 366
 367         SaveSnapshotSuccess saveSnapshotSuccess = new SaveSnapshotSuccess(mock(SnapshotMetadata.class));
 368         doReturn(true).when(mockSupport).handleSnapshotMessage(same(saveSnapshotSuccess), any(ActorRef.class));
 369         mockRaftActor.handleCommand(saveSnapshotSuccess);
 370
 371         SaveSnapshotFailure saveSnapshotFailure = new SaveSnapshotFailure(mock(SnapshotMetadata.class), new Throwable());
 372         doReturn(true).when(mockSupport).handleSnapshotMessage(same(saveSnapshotFailure), any(ActorRef.class));
 373         mockRaftActor.handleCommand(saveSnapshotFailure);
 374
 375         doReturn(true).when(mockSupport).handleSnapshotMessage(same(RaftActorSnapshotMessageSupport.COMMIT_SNAPSHOT),
 376                 any(ActorRef.class));
 377         mockRaftActor.handleCommand(RaftActorSnapshotMessageSupport.COMMIT_SNAPSHOT);
 378
 379         doReturn(true).when(mockSupport).handleSnapshotMessage(same(GetSnapshot.INSTANCE), any(ActorRef.class));
 380         mockRaftActor.handleCommand(GetSnapshot.INSTANCE);
 381
 382         verify(mockSupport).handleSnapshotMessage(same(applySnapshot), any(ActorRef.class));
 383         verify(mockSupport).handleSnapshotMessage(same(captureSnapshot), any(ActorRef.class));
 384         verify(mockSupport).handleSnapshotMessage(same(captureSnapshotReply), any(ActorRef.class));
 385         verify(mockSupport).handleSnapshotMessage(same(saveSnapshotSuccess), any(ActorRef.class));
 386         verify(mockSupport).handleSnapshotMessage(same(saveSnapshotFailure), any(ActorRef.class));
 387         verify(mockSupport).handleSnapshotMessage(same(RaftActorSnapshotMessageSupport.COMMIT_SNAPSHOT),
 388                 any(ActorRef.class));
 389         verify(mockSupport).handleSnapshotMessage(same(GetSnapshot.INSTANCE), any(ActorRef.class));
 390     }
 391
 392     @Test
 393     public void testApplyJournalEntriesCallsDataPersistence() throws Exception {
 394         new JavaTestKit(getSystem()) {
 395             {
 396                 String persistenceId = factory.generateActorId("leader-");
 397
 398                 DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 399
 400                 config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 401
 402                 DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
 403
 404                 TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
 405                         Collections.<String, String>emptyMap(), config, dataPersistenceProvider), persistenceId);
 406
 407                 MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
 408
 409                 mockRaftActor.waitForInitializeBehaviorComplete();
 410
 411                 mockRaftActor.waitUntilLeader();
 412
 413                 mockRaftActor.onReceiveCommand(new ApplyJournalEntries(10));
 414
 415                 verify(dataPersistenceProvider).persist(any(ApplyJournalEntries.class), any(Procedure.class));
 416
 417             }
 418
 419         };
 420     }
 421
 422     @Test
 423     public void testApplyState() throws Exception {
 424
 425         new JavaTestKit(getSystem()) {
 426             {
 427                 String persistenceId = factory.generateActorId("leader-");
 428
 429                 DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 430
 431                 config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 432
 433                 DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
 434
 435                 TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
 436                         Collections.<String, String>emptyMap(), config, dataPersistenceProvider), persistenceId);
 437
 438                 MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
 439
 440                 mockRaftActor.waitForInitializeBehaviorComplete();
 441
 442                 ReplicatedLogEntry entry = new MockRaftActorContext.MockReplicatedLogEntry(1, 5,
 443                         new MockRaftActorContext.MockPayload("F"));
 444
 445                 mockRaftActor.onReceiveCommand(new ApplyState(mockActorRef, "apply-state", entry));
 446
 447                 verify(mockRaftActor.actorDelegate).applyState(eq(mockActorRef), eq("apply-state"), anyObject());
 448
 449             }
 450         };
 451     }
 452
 453     @Test
 454     public void testRaftRoleChangeNotifierWhenRaftActorHasNoPeers() throws Exception {
 455         new JavaTestKit(getSystem()) {{
 456             TestActorRef<MessageCollectorActor> notifierActor = factory.createTestActor(
 457                     Props.create(MessageCollectorActor.class));
 458             MessageCollectorActor.waitUntilReady(notifierActor);
 459
 460             DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 461             long heartBeatInterval = 100;
 462             config.setHeartBeatInterval(FiniteDuration.create(heartBeatInterval, TimeUnit.MILLISECONDS));
 463             config.setElectionTimeoutFactor(20);
 464
 465             String persistenceId = factory.generateActorId("notifier-");
 466
 467             TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
 468                     config(config).roleChangeNotifier(notifierActor).dataPersistenceProvider(
 469                             new NonPersistentDataProvider()).props().withDispatcher(Dispatchers.DefaultDispatcherId()),
 470                             persistenceId);
 471
 472             List<RoleChanged> matches =  MessageCollectorActor.expectMatching(notifierActor, RoleChanged.class, 3);
 473
 474
 475             // check if the notifier got a role change from null to Follower
 476             RoleChanged raftRoleChanged = matches.get(0);
 477             assertEquals(persistenceId, raftRoleChanged.getMemberId());
 478             assertNull(raftRoleChanged.getOldRole());
 479             assertEquals(RaftState.Follower.name(), raftRoleChanged.getNewRole());
 480
 481             // check if the notifier got a role change from Follower to Candidate
 482             raftRoleChanged = matches.get(1);
 483             assertEquals(persistenceId, raftRoleChanged.getMemberId());
 484             assertEquals(RaftState.Follower.name(), raftRoleChanged.getOldRole());
 485             assertEquals(RaftState.Candidate.name(), raftRoleChanged.getNewRole());
 486
 487             // check if the notifier got a role change from Candidate to Leader
 488             raftRoleChanged = matches.get(2);
 489             assertEquals(persistenceId, raftRoleChanged.getMemberId());
 490             assertEquals(RaftState.Candidate.name(), raftRoleChanged.getOldRole());
 491             assertEquals(RaftState.Leader.name(), raftRoleChanged.getNewRole());
 492
 493             LeaderStateChanged leaderStateChange = MessageCollectorActor.expectFirstMatching(
 494                     notifierActor, LeaderStateChanged.class);
 495
 496             assertEquals(raftRoleChanged.getMemberId(), leaderStateChange.getLeaderId());
 497             assertEquals(MockRaftActor.PAYLOAD_VERSION, leaderStateChange.getLeaderPayloadVersion());
 498
 499             notifierActor.underlyingActor().clear();
 500
 501             MockRaftActor raftActor = raftActorRef.underlyingActor();
 502             final String newLeaderId = "new-leader";
 503             final short newLeaderVersion = 6;
 504             Follower follower = new Follower(raftActor.getRaftActorContext()) {
 505                 @Override
 506                 public RaftActorBehavior handleMessage(ActorRef sender, Object message) {
 507                     leaderId = newLeaderId;
 508                     setLeaderPayloadVersion(newLeaderVersion);
 509                     return this;
 510                 }
 511             };
 512
 513             raftActor.newBehavior(follower);
 514
 515             leaderStateChange = MessageCollectorActor.expectFirstMatching(notifierActor, LeaderStateChanged.class);
 516             assertEquals(persistenceId, leaderStateChange.getMemberId());
 517             assertEquals(null, leaderStateChange.getLeaderId());
 518
 519             raftRoleChanged = MessageCollectorActor.expectFirstMatching(notifierActor, RoleChanged.class);
 520             assertEquals(RaftState.Leader.name(), raftRoleChanged.getOldRole());
 521             assertEquals(RaftState.Follower.name(), raftRoleChanged.getNewRole());
 522
 523             notifierActor.underlyingActor().clear();
 524
 525             raftActor.handleCommand("any");
 526
 527             leaderStateChange = MessageCollectorActor.expectFirstMatching(notifierActor, LeaderStateChanged.class);
 528             assertEquals(persistenceId, leaderStateChange.getMemberId());
 529             assertEquals(newLeaderId, leaderStateChange.getLeaderId());
 530             assertEquals(newLeaderVersion, leaderStateChange.getLeaderPayloadVersion());
 531
 532             notifierActor.underlyingActor().clear();
 533
 534             raftActor.handleCommand("any");
 535
 536             Uninterruptibles.sleepUninterruptibly(505, TimeUnit.MILLISECONDS);
 537             leaderStateChange = MessageCollectorActor.getFirstMatching(notifierActor, LeaderStateChanged.class);
 538             assertNull(leaderStateChange);
 539         }};
 540     }
 541
 542     @Test
 543     public void testRaftRoleChangeNotifierWhenRaftActorHasPeers() throws Exception {
 544         new JavaTestKit(getSystem()) {{
 545             ActorRef notifierActor = factory.createActor(Props.create(MessageCollectorActor.class));
 546             MessageCollectorActor.waitUntilReady(notifierActor);
 547
 548             DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 549             long heartBeatInterval = 100;
 550             config.setHeartBeatInterval(FiniteDuration.create(heartBeatInterval, TimeUnit.MILLISECONDS));
 551             config.setElectionTimeoutFactor(1);
 552
 553             String persistenceId = factory.generateActorId("notifier-");
 554
 555             factory.createActor(MockRaftActor.builder().id(persistenceId).
 556                     peerAddresses(ImmutableMap.of("leader", "fake/path")).
 557                     config(config).roleChangeNotifier(notifierActor).props());
 558
 559             List<RoleChanged> matches =  null;
 560             for(int i = 0; i < 5000 / heartBeatInterval; i++) {
 561                 matches = MessageCollectorActor.getAllMatching(notifierActor, RoleChanged.class);
 562                 assertNotNull(matches);
 563                 if(matches.size() == 3) {
 564                     break;
 565                 }
 566                 Uninterruptibles.sleepUninterruptibly(heartBeatInterval, TimeUnit.MILLISECONDS);
 567             }
 568
 569             assertNotNull(matches);
 570             assertEquals(2, matches.size());
 571
 572             // check if the notifier got a role change from null to Follower
 573             RoleChanged raftRoleChanged = matches.get(0);
 574             assertEquals(persistenceId, raftRoleChanged.getMemberId());
 575             assertNull(raftRoleChanged.getOldRole());
 576             assertEquals(RaftState.Follower.name(), raftRoleChanged.getNewRole());
 577
 578             // check if the notifier got a role change from Follower to Candidate
 579             raftRoleChanged = matches.get(1);
 580             assertEquals(persistenceId, raftRoleChanged.getMemberId());
 581             assertEquals(RaftState.Follower.name(), raftRoleChanged.getOldRole());
 582             assertEquals(RaftState.Candidate.name(), raftRoleChanged.getNewRole());
 583
 584         }};
 585     }
 586
 587     @Test
 588     public void testFakeSnapshotsForLeaderWithInRealSnapshots() throws Exception {
 589         new JavaTestKit(getSystem()) {
 590             {
 591                 String persistenceId = factory.generateActorId("leader-");
 592                 String follower1Id = factory.generateActorId("follower-");
 593
 594                 ActorRef followerActor1 =
 595                         factory.createActor(Props.create(MessageCollectorActor.class));
 596
 597                 DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 598                 config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 599                 config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
 600
 601                 DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
 602
 603                 Map<String, String> peerAddresses = new HashMap<>();
 604                 peerAddresses.put(follower1Id, followerActor1.path().toString());
 605
 606                 TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
 607                         MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
 608
 609                 MockRaftActor leaderActor = mockActorRef.underlyingActor();
 610
 611                 leaderActor.getRaftActorContext().setCommitIndex(4);
 612                 leaderActor.getRaftActorContext().setLastApplied(4);
 613                 leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
 614
 615                 leaderActor.waitForInitializeBehaviorComplete();
 616
 617                 // create 8 entries in the log - 0 to 4 are applied and will get picked up as part of the capture snapshot
 618
 619                 Leader leader = new Leader(leaderActor.getRaftActorContext());
 620                 leaderActor.setCurrentBehavior(leader);
 621                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 622
 623                 MockRaftActorContext.MockReplicatedLogBuilder logBuilder = new MockRaftActorContext.MockReplicatedLogBuilder();
 624                 leaderActor.getRaftActorContext().setReplicatedLog(logBuilder.createEntries(0, 8, 1).build());
 625
 626                 assertEquals(8, leaderActor.getReplicatedLog().size());
 627
 628                 leaderActor.getRaftActorContext().getSnapshotManager()
 629                         .capture(new MockRaftActorContext.MockReplicatedLogEntry(1, 6,
 630                                 new MockRaftActorContext.MockPayload("x")), 4);
 631
 632                 verify(leaderActor.snapshotCohortDelegate).createSnapshot(any(ActorRef.class));
 633
 634                 assertEquals(8, leaderActor.getReplicatedLog().size());
 635
 636                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 637                 //fake snapshot on index 5
 638                 leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 5, 1, (short)0));
 639
 640                 assertEquals(8, leaderActor.getReplicatedLog().size());
 641
 642                 //fake snapshot on index 6
 643                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 644                 leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 6, 1, (short)0));
 645                 assertEquals(8, leaderActor.getReplicatedLog().size());
 646
 647                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 648
 649                 assertEquals(8, leaderActor.getReplicatedLog().size());
 650
 651                 ByteString snapshotBytes = fromObject(Arrays.asList(
 652                         new MockRaftActorContext.MockPayload("foo-0"),
 653                         new MockRaftActorContext.MockPayload("foo-1"),
 654                         new MockRaftActorContext.MockPayload("foo-2"),
 655                         new MockRaftActorContext.MockPayload("foo-3"),
 656                         new MockRaftActorContext.MockPayload("foo-4")));
 657
 658                 leaderActor.getRaftActorContext().getSnapshotManager().persist(snapshotBytes.toByteArray(),
 659                         leader, Runtime.getRuntime().totalMemory());
 660
 661                 assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
 662
 663                 // The commit is needed to complete the snapshot creation process
 664                 leaderActor.getRaftActorContext().getSnapshotManager().commit(-1, leader);
 665
 666                 // capture snapshot reply should remove the snapshotted entries only
 667                 assertEquals(3, leaderActor.getReplicatedLog().size());
 668                 assertEquals(7, leaderActor.getReplicatedLog().lastIndex());
 669
 670                 // add another non-replicated entry
 671                 leaderActor.getReplicatedLog().append(
 672                         new ReplicatedLogImplEntry(8, 1, new MockRaftActorContext.MockPayload("foo-8")));
 673
 674                 //fake snapshot on index 7, since lastApplied = 7 , we would keep the last applied
 675                 leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 7, 1, (short)0));
 676                 assertEquals(2, leaderActor.getReplicatedLog().size());
 677                 assertEquals(8, leaderActor.getReplicatedLog().lastIndex());
 678
 679             }
 680         };
 681     }
 682
 683     @Test
 684     public void testFakeSnapshotsForFollowerWithInRealSnapshots() throws Exception {
 685         new JavaTestKit(getSystem()) {
 686             {
 687                 String persistenceId = factory.generateActorId("follower-");
 688                 String leaderId = factory.generateActorId("leader-");
 689
 690
 691                 ActorRef leaderActor1 =
 692                         factory.createActor(Props.create(MessageCollectorActor.class));
 693
 694                 DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 695                 config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 696                 config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
 697
 698                 DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
 699
 700                 Map<String, String> peerAddresses = new HashMap<>();
 701                 peerAddresses.put(leaderId, leaderActor1.path().toString());
 702
 703                 TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
 704                         MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
 705
 706                 MockRaftActor followerActor = mockActorRef.underlyingActor();
 707                 followerActor.getRaftActorContext().setCommitIndex(4);
 708                 followerActor.getRaftActorContext().setLastApplied(4);
 709                 followerActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
 710
 711                 followerActor.waitForInitializeBehaviorComplete();
 712
 713
 714                 Follower follower = new Follower(followerActor.getRaftActorContext());
 715                 followerActor.setCurrentBehavior(follower);
 716                 assertEquals(RaftState.Follower, followerActor.getCurrentBehavior().state());
 717
 718                 // create 6 entries in the log - 0 to 4 are applied and will get picked up as part of the capture snapshot
 719                 MockRaftActorContext.MockReplicatedLogBuilder logBuilder = new MockRaftActorContext.MockReplicatedLogBuilder();
 720                 followerActor.getRaftActorContext().setReplicatedLog(logBuilder.createEntries(0, 6, 1).build());
 721
 722                 // log has indices 0-5
 723                 assertEquals(6, followerActor.getReplicatedLog().size());
 724
 725                 //snapshot on 4
 726                 followerActor.getRaftActorContext().getSnapshotManager().capture(
 727                         new MockRaftActorContext.MockReplicatedLogEntry(1, 5,
 728                                 new MockRaftActorContext.MockPayload("D")), 4);
 729
 730                 verify(followerActor.snapshotCohortDelegate).createSnapshot(any(ActorRef.class));
 731
 732                 assertEquals(6, followerActor.getReplicatedLog().size());
 733
 734                 //fake snapshot on index 6
 735                 List<ReplicatedLogEntry> entries =
 736                         Arrays.asList(
 737                                 (ReplicatedLogEntry) new MockRaftActorContext.MockReplicatedLogEntry(1, 6,
 738                                         new MockRaftActorContext.MockPayload("foo-6"))
 739                         );
 740                 followerActor.onReceiveCommand(new AppendEntries(1, leaderId, 5, 1, entries, 5, 5, (short)0));
 741                 assertEquals(7, followerActor.getReplicatedLog().size());
 742
 743                 //fake snapshot on index 7
 744                 assertEquals(RaftState.Follower, followerActor.getCurrentBehavior().state());
 745
 746                 entries =
 747                         Arrays.asList(
 748                                 (ReplicatedLogEntry) new MockRaftActorContext.MockReplicatedLogEntry(1, 7,
 749                                         new MockRaftActorContext.MockPayload("foo-7"))
 750                         );
 751                 followerActor.onReceiveCommand(new AppendEntries(1, leaderId, 6, 1, entries, 6, 6, (short) 0));
 752                 assertEquals(8, followerActor.getReplicatedLog().size());
 753
 754                 assertEquals(RaftState.Follower, followerActor.getCurrentBehavior().state());
 755
 756
 757                 ByteString snapshotBytes = fromObject(Arrays.asList(
 758                         new MockRaftActorContext.MockPayload("foo-0"),
 759                         new MockRaftActorContext.MockPayload("foo-1"),
 760                         new MockRaftActorContext.MockPayload("foo-2"),
 761                         new MockRaftActorContext.MockPayload("foo-3"),
 762                         new MockRaftActorContext.MockPayload("foo-4")));
 763                 followerActor.onReceiveCommand(new CaptureSnapshotReply(snapshotBytes.toByteArray()));
 764                 assertTrue(followerActor.getRaftActorContext().getSnapshotManager().isCapturing());
 765
 766                 // The commit is needed to complete the snapshot creation process
 767                 followerActor.getRaftActorContext().getSnapshotManager().commit(-1, follower);
 768
 769                 // capture snapshot reply should remove the snapshotted entries only till replicatedToAllIndex
 770                 assertEquals(3, followerActor.getReplicatedLog().size()); //indexes 5,6,7 left in the log
 771                 assertEquals(7, followerActor.getReplicatedLog().lastIndex());
 772
 773                 entries =
 774                         Arrays.asList(
 775                                 (ReplicatedLogEntry) new MockRaftActorContext.MockReplicatedLogEntry(1, 8,
 776                                         new MockRaftActorContext.MockPayload("foo-7"))
 777                         );
 778                 // send an additional entry 8 with leaderCommit = 7
 779                 followerActor.onReceiveCommand(new AppendEntries(1, leaderId, 7, 1, entries, 7, 7, (short) 0));
 780
 781                 // 7 and 8, as lastapplied is 7
 782                 assertEquals(2, followerActor.getReplicatedLog().size());
 783
 784             }
 785         };
 786     }
 787
 788     @Test
 789     public void testFakeSnapshotsForLeaderWithInInitiateSnapshots() throws Exception {
 790         new JavaTestKit(getSystem()) {
 791             {
 792                 String persistenceId = factory.generateActorId("leader-");
 793                 String follower1Id = factory.generateActorId("follower-");
 794                 String follower2Id = factory.generateActorId("follower-");
 795
 796                 ActorRef followerActor1 =
 797                         factory.createActor(Props.create(MessageCollectorActor.class), follower1Id);
 798                 ActorRef followerActor2 =
 799                         factory.createActor(Props.create(MessageCollectorActor.class), follower2Id);
 800
 801                 DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 802                 config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 803                 config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
 804
 805                 DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
 806
 807                 Map<String, String> peerAddresses = new HashMap<>();
 808                 peerAddresses.put(follower1Id, followerActor1.path().toString());
 809                 peerAddresses.put(follower2Id, followerActor2.path().toString());
 810
 811                 TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
 812                         MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
 813
 814                 MockRaftActor leaderActor = mockActorRef.underlyingActor();
 815                 leaderActor.getRaftActorContext().setCommitIndex(9);
 816                 leaderActor.getRaftActorContext().setLastApplied(9);
 817                 leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
 818
 819                 leaderActor.waitForInitializeBehaviorComplete();
 820
 821                 Leader leader = new Leader(leaderActor.getRaftActorContext());
 822                 leaderActor.setCurrentBehavior(leader);
 823                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 824
 825                 // create 5 entries in the log
 826                 MockRaftActorContext.MockReplicatedLogBuilder logBuilder = new MockRaftActorContext.MockReplicatedLogBuilder();
 827                 leaderActor.getRaftActorContext().setReplicatedLog(logBuilder.createEntries(5, 10, 1).build());
 828
 829                 //set the snapshot index to 4 , 0 to 4 are snapshotted
 830                 leaderActor.getRaftActorContext().getReplicatedLog().setSnapshotIndex(4);
 831                 //setting replicatedToAllIndex = 9, for the log to clear
 832                 leader.setReplicatedToAllIndex(9);
 833                 assertEquals(5, leaderActor.getReplicatedLog().size());
 834                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 835
 836                 leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 9, 1, (short) 0));
 837                 assertEquals(5, leaderActor.getReplicatedLog().size());
 838                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 839
 840                 // set the 2nd follower nextIndex to 1 which has been snapshotted
 841                 leaderActor.onReceiveCommand(new AppendEntriesReply(follower2Id, 1, true, 0, 1, (short)0));
 842                 assertEquals(5, leaderActor.getReplicatedLog().size());
 843                 assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 844
 845                 // simulate a real snapshot
 846                 leaderActor.onReceiveCommand(new SendHeartBeat());
 847                 assertEquals(5, leaderActor.getReplicatedLog().size());
 848                 assertEquals(String.format("expected to be Leader but was %s. Current Leader = %s ",
 849                         leaderActor.getCurrentBehavior().state(), leaderActor.getLeaderId())
 850                         , RaftState.Leader, leaderActor.getCurrentBehavior().state());
 851
 852
 853                 //reply from a slow follower does not initiate a fake snapshot
 854                 leaderActor.onReceiveCommand(new AppendEntriesReply(follower2Id, 1, true, 9, 1, (short)0));
 855                 assertEquals("Fake snapshot should not happen when Initiate is in progress", 5, leaderActor.getReplicatedLog().size());
 856
 857                 ByteString snapshotBytes = fromObject(Arrays.asList(
 858                         new MockRaftActorContext.MockPayload("foo-0"),
 859                         new MockRaftActorContext.MockPayload("foo-1"),
 860                         new MockRaftActorContext.MockPayload("foo-2"),
 861                         new MockRaftActorContext.MockPayload("foo-3"),
 862                         new MockRaftActorContext.MockPayload("foo-4")));
 863                 leaderActor.onReceiveCommand(new CaptureSnapshotReply(snapshotBytes.toByteArray()));
 864                 assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
 865
 866                 assertEquals("Real snapshot didn't clear the log till replicatedToAllIndex", 0, leaderActor.getReplicatedLog().size());
 867
 868                 //reply from a slow follower after should not raise errors
 869                 leaderActor.onReceiveCommand(new AppendEntriesReply(follower2Id, 1, true, 5, 1, (short) 0));
 870                 assertEquals(0, leaderActor.getReplicatedLog().size());
 871             }
 872         };
 873     }
 874
 875     @Test
 876     public void testRealSnapshotWhenReplicatedToAllIndexMinusOne() throws Exception {
 877         new JavaTestKit(getSystem()) {{
 878             String persistenceId = factory.generateActorId("leader-");
 879             DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 880             config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 881             config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
 882             config.setSnapshotBatchCount(5);
 883
 884             DataPersistenceProvider dataPersistenceProvider = new NonPersistentDataProvider();
 885
 886             Map<String, String> peerAddresses = ImmutableMap.<String, String>builder().put("member1", "address").build();
 887
 888             TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
 889                     MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
 890
 891             MockRaftActor leaderActor = mockActorRef.underlyingActor();
 892             leaderActor.getRaftActorContext().setCommitIndex(3);
 893             leaderActor.getRaftActorContext().setLastApplied(3);
 894             leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
 895
 896             leaderActor.waitForInitializeBehaviorComplete();
 897             for(int i=0;i< 4;i++) {
 898                 leaderActor.getReplicatedLog()
 899                         .append(new MockRaftActorContext.MockReplicatedLogEntry(1, i,
 900                                 new MockRaftActorContext.MockPayload("A")));
 901             }
 902
 903             Leader leader = new Leader(leaderActor.getRaftActorContext());
 904             leaderActor.setCurrentBehavior(leader);
 905             assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 906
 907             // Simulate an install snaphost to a follower.
 908             leaderActor.getRaftActorContext().getSnapshotManager().captureToInstall(
 909                     leaderActor.getReplicatedLog().last(), -1, "member1");
 910
 911             // Now send a CaptureSnapshotReply
 912             mockActorRef.tell(new CaptureSnapshotReply(fromObject("foo").toByteArray()), mockActorRef);
 913
 914             // Trimming log in this scenario is a no-op
 915             assertEquals(-1, leaderActor.getReplicatedLog().getSnapshotIndex());
 916             assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
 917             assertEquals(-1, leader.getReplicatedToAllIndex());
 918
 919         }};
 920     }
 921
 922     @Test
 923     public void testRealSnapshotWhenReplicatedToAllIndexNotInReplicatedLog() throws Exception {
 924         new JavaTestKit(getSystem()) {{
 925             String persistenceId = factory.generateActorId("leader-");
 926             DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 927             config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 928             config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
 929             config.setSnapshotBatchCount(5);
 930
 931             DataPersistenceProvider dataPersistenceProvider = new NonPersistentDataProvider();
 932
 933             Map<String, String> peerAddresses = ImmutableMap.<String, String>builder().put("member1", "address").build();
 934
 935             TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
 936                     MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
 937
 938             MockRaftActor leaderActor = mockActorRef.underlyingActor();
 939             leaderActor.getRaftActorContext().setCommitIndex(3);
 940             leaderActor.getRaftActorContext().setLastApplied(3);
 941             leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
 942             leaderActor.getReplicatedLog().setSnapshotIndex(3);
 943
 944             leaderActor.waitForInitializeBehaviorComplete();
 945             Leader leader = new Leader(leaderActor.getRaftActorContext());
 946             leaderActor.setCurrentBehavior(leader);
 947             leader.setReplicatedToAllIndex(3);
 948             assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
 949
 950             // Persist another entry (this will cause a CaptureSnapshot to be triggered
 951             leaderActor.persistData(mockActorRef, "x", new MockRaftActorContext.MockPayload("duh"));
 952
 953             // Now send a CaptureSnapshotReply
 954             mockActorRef.tell(new CaptureSnapshotReply(fromObject("foo").toByteArray()), mockActorRef);
 955
 956             // Trimming log in this scenario is a no-op
 957             assertEquals(3, leaderActor.getReplicatedLog().getSnapshotIndex());
 958             assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
 959             assertEquals(3, leader.getReplicatedToAllIndex());
 960
 961         }};
 962     }
 963
 964     @Test
 965     public void testRaftActorOnRecoverySnapshot() throws Exception {
 966         TEST_LOG.info("testRaftActorOnRecoverySnapshot");
 967
 968         new JavaTestKit(getSystem()) {{
 969                 String persistenceId = factory.generateActorId("follower-");
 970
 971                 DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
 972
 973                 // Set the heartbeat interval high to essentially disable election otherwise the test
 974                 // may fail if the actor is switched to Leader
 975                 config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
 976
 977                 ImmutableMap<String, String> peerAddresses = ImmutableMap.<String, String>builder().put("member1", "address").build();
 978
 979                 // Create mock ReplicatedLogEntry
 980                 ReplicatedLogEntry replLogEntry = new MockRaftActorContext.MockReplicatedLogEntry(1,1,
 981                         new MockRaftActorContext.MockPayload("F", 1));
 982
 983                 InMemoryJournal.addEntry(persistenceId, 1, replLogEntry);
 984
 985                 TestActorRef<MockRaftActor> ref = factory.createTestActor(
 986                         MockRaftActor.props(persistenceId, peerAddresses, config));
 987
 988                 MockRaftActor mockRaftActor = ref.underlyingActor();
 989
 990                 mockRaftActor.waitForRecoveryComplete();
 991
 992                 mockRaftActor.waitForInitializeBehaviorComplete();
 993
 994                 verify(mockRaftActor.snapshotCohortDelegate, timeout(5000)).createSnapshot(any(ActorRef.class));
 995             }};
 996     }
 997
 998     @Test
 999     public void testSwitchBehavior(){
1000         String persistenceId = factory.generateActorId("leader-");
1001         DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
1002         config.setCustomRaftPolicyImplementationClass("org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy");
1003         config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
1004         config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
1005         config.setSnapshotBatchCount(5);
1006
1007         DataPersistenceProvider dataPersistenceProvider = new NonPersistentDataProvider();
1008
1009         Map<String, String> peerAddresses = ImmutableMap.<String, String>builder().build();
1010
1011         TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
1012                 MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
1013
1014         MockRaftActor leaderActor = mockActorRef.underlyingActor();
1015
1016         leaderActor.waitForRecoveryComplete();
1017
1018         leaderActor.handleCommand(new SwitchBehavior(RaftState.Follower, 100));
1019
1020         assertEquals(100, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
1021         assertEquals(RaftState.Follower, leaderActor.getCurrentBehavior().state());
1022
1023         leaderActor.handleCommand(new SwitchBehavior(RaftState.Leader, 110));
1024
1025         assertEquals(110, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
1026         assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
1027
1028         leaderActor.handleCommand(new SwitchBehavior(RaftState.Candidate, 125));
1029
1030         assertEquals(110, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
1031         assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
1032
1033         leaderActor.handleCommand(new SwitchBehavior(RaftState.IsolatedLeader, 125));
1034
1035         assertEquals(110, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
1036         assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
1037     }
1038
1039     public static ByteString fromObject(Object snapshot) throws Exception {
1040         ByteArrayOutputStream b = null;
1041         ObjectOutputStream o = null;
1042         try {
1043             b = new ByteArrayOutputStream();
1044             o = new ObjectOutputStream(b);
1045             o.writeObject(snapshot);
1046             byte[] snapshotBytes = b.toByteArray();
1047             return ByteString.copyFrom(snapshotBytes);
1048         } finally {
1049             if (o != null) {
1050                 o.flush();
1051                 o.close();
1052             }
1053             if (b != null) {
1054                 b.close();
1055             }
1056         }
1057     }
1058
1059     @Test
1060     public void testUpdateConfigParam() throws Exception {
1061         DefaultConfigParamsImpl emptyConfig = new DefaultConfigParamsImpl();
1062         String persistenceId = factory.generateActorId("follower-");
1063         ImmutableMap<String, String> peerAddresses =
1064             ImmutableMap.<String, String>builder().put("member1", "address").build();
1065         DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
1066
1067         TestActorRef<MockRaftActor> actorRef = factory.createTestActor(
1068                 MockRaftActor.props(persistenceId, peerAddresses, emptyConfig, dataPersistenceProvider), persistenceId);
1069         MockRaftActor mockRaftActor = actorRef.underlyingActor();
1070         mockRaftActor.waitForInitializeBehaviorComplete();
1071
1072         RaftActorBehavior behavior = mockRaftActor.getCurrentBehavior();
1073         mockRaftActor.updateConfigParams(emptyConfig);
1074         assertSame("Same Behavior", behavior, mockRaftActor.getCurrentBehavior());
1075         assertEquals("Behavior State", RaftState.Follower,
1076             mockRaftActor.getCurrentBehavior().state());
1077
1078         DefaultConfigParamsImpl disableConfig = new DefaultConfigParamsImpl();
1079         disableConfig.setCustomRaftPolicyImplementationClass(
1080             "org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy");
1081         mockRaftActor.updateConfigParams(disableConfig);
1082         assertNotSame("Different Behavior", behavior, mockRaftActor.getCurrentBehavior());
1083         assertEquals("Behavior State", RaftState.Follower,
1084             mockRaftActor.getCurrentBehavior().state());
1085
1086         behavior = mockRaftActor.getCurrentBehavior();
1087         mockRaftActor.updateConfigParams(disableConfig);
1088         assertSame("Same Behavior", behavior, mockRaftActor.getCurrentBehavior());
1089         assertEquals("Behavior State", RaftState.Follower,
1090             mockRaftActor.getCurrentBehavior().state());
1091
1092         DefaultConfigParamsImpl defaultConfig = new DefaultConfigParamsImpl();
1093         defaultConfig.setCustomRaftPolicyImplementationClass(
1094             "org.opendaylight.controller.cluster.raft.policy.DefaultRaftPolicy");
1095         mockRaftActor.updateConfigParams(defaultConfig);
1096         assertNotSame("Different Behavior", behavior, mockRaftActor.getCurrentBehavior());
1097         assertEquals("Behavior State", RaftState.Follower,
1098             mockRaftActor.getCurrentBehavior().state());
1099
1100         behavior = mockRaftActor.getCurrentBehavior();
1101         mockRaftActor.updateConfigParams(defaultConfig);
1102         assertSame("Same Behavior", behavior, mockRaftActor.getCurrentBehavior());
1103         assertEquals("Behavior State", RaftState.Follower,
1104             mockRaftActor.getCurrentBehavior().state());
1105     }
1106
1107     @Test
1108     public void testGetSnapshot() throws Exception {
1109         TEST_LOG.info("testGetSnapshot starting");
1110
1111         JavaTestKit kit = new JavaTestKit(getSystem());
1112
1113         String persistenceId = factory.generateActorId("test-actor-");
1114         DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
1115         config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
1116
1117         long term = 3;
1118         long seqN = 1;
1119         InMemoryJournal.addEntry(persistenceId, seqN++, new UpdateElectionTerm(term, "member-1"));
1120         InMemoryJournal.addEntry(persistenceId, seqN++, new MockRaftActorContext.MockReplicatedLogEntry(term, 0,
1121                 new MockRaftActorContext.MockPayload("A")));
1122         InMemoryJournal.addEntry(persistenceId, seqN++, new MockRaftActorContext.MockReplicatedLogEntry(term, 1,
1123                 new MockRaftActorContext.MockPayload("B")));
1124         InMemoryJournal.addEntry(persistenceId, seqN++, new ApplyJournalEntries(1));
1125         InMemoryJournal.addEntry(persistenceId, seqN++, new MockRaftActorContext.MockReplicatedLogEntry(term, 2,
1126                 new MockRaftActorContext.MockPayload("C")));
1127
1128         TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
1129                 ImmutableMap.<String, String>builder().put("member1", "address").build(), config).
1130                     withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
1131         MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
1132
1133         mockRaftActor.waitForRecoveryComplete();
1134
1135         // Wait for snapshot after recovery
1136         verify(mockRaftActor.snapshotCohortDelegate, timeout(5000)).createSnapshot(any(ActorRef.class));
1137
1138         mockRaftActor.snapshotCohortDelegate = mock(RaftActorSnapshotCohort.class);
1139
1140         raftActorRef.tell(GetSnapshot.INSTANCE, kit.getRef());
1141
1142         ArgumentCaptor<ActorRef> replyActor = ArgumentCaptor.forClass(ActorRef.class);
1143         verify(mockRaftActor.snapshotCohortDelegate, timeout(5000)).createSnapshot(replyActor.capture());
1144
1145         byte[] stateSnapshot = new byte[]{1,2,3};
1146         replyActor.getValue().tell(new CaptureSnapshotReply(stateSnapshot), ActorRef.noSender());
1147
1148         GetSnapshotReply reply = kit.expectMsgClass(GetSnapshotReply.class);
1149
1150         assertEquals("getId", persistenceId, reply.getId());
1151         Snapshot replySnapshot = SerializationUtils.deserialize(reply.getSnapshot());
1152         assertEquals("getElectionTerm", term, replySnapshot.getElectionTerm());
1153         assertEquals("getElectionVotedFor", "member-1", replySnapshot.getElectionVotedFor());
1154         assertEquals("getLastAppliedIndex", 1L, replySnapshot.getLastAppliedIndex());
1155         assertEquals("getLastAppliedTerm", term, replySnapshot.getLastAppliedTerm());
1156         assertEquals("getLastIndex", 2L, replySnapshot.getLastIndex());
1157         assertEquals("getLastTerm", term, replySnapshot.getLastTerm());
1158         assertArrayEquals("getState", stateSnapshot, replySnapshot.getState());
1159         assertEquals("getUnAppliedEntries size", 1, replySnapshot.getUnAppliedEntries().size());
1160         assertEquals("UnApplied entry index ", 2L, replySnapshot.getUnAppliedEntries().get(0).getIndex());
1161
1162         // Test with timeout
1163
1164         mockRaftActor.getSnapshotMessageSupport().setSnapshotReplyActorTimeout(Duration.create(200, TimeUnit.MILLISECONDS));
1165         reset(mockRaftActor.snapshotCohortDelegate);
1166
1167         raftActorRef.tell(GetSnapshot.INSTANCE, kit.getRef());
1168         Failure failure = kit.expectMsgClass(akka.actor.Status.Failure.class);
1169         assertEquals("Failure cause type", TimeoutException.class, failure.cause().getClass());
1170
1171         mockRaftActor.getSnapshotMessageSupport().setSnapshotReplyActorTimeout(Duration.create(30, TimeUnit.SECONDS));
1172
1173         // Test with persistence disabled.
1174
1175         mockRaftActor.setPersistence(false);
1176         reset(mockRaftActor.snapshotCohortDelegate);
1177
1178         raftActorRef.tell(GetSnapshot.INSTANCE, kit.getRef());
1179         reply = kit.expectMsgClass(GetSnapshotReply.class);
1180         verify(mockRaftActor.snapshotCohortDelegate, never()).createSnapshot(any(ActorRef.class));
1181
1182         assertEquals("getId", persistenceId, reply.getId());
1183         replySnapshot = SerializationUtils.deserialize(reply.getSnapshot());
1184         assertEquals("getElectionTerm", term, replySnapshot.getElectionTerm());
1185         assertEquals("getElectionVotedFor", "member-1", replySnapshot.getElectionVotedFor());
1186         assertEquals("getLastAppliedIndex", -1L, replySnapshot.getLastAppliedIndex());
1187         assertEquals("getLastAppliedTerm", -1L, replySnapshot.getLastAppliedTerm());
1188         assertEquals("getLastIndex", -1L, replySnapshot.getLastIndex());
1189         assertEquals("getLastTerm", -1L, replySnapshot.getLastTerm());
1190         assertEquals("getState length", 0, replySnapshot.getState().length);
1191         assertEquals("getUnAppliedEntries size", 0, replySnapshot.getUnAppliedEntries().size());
1192
1193         TEST_LOG.info("testGetSnapshot ending");
1194     }
1195
1196     @Test
1197     public void testRestoreFromSnapshot() throws Exception {
1198         TEST_LOG.info("testRestoreFromSnapshot starting");
1199
1200         String persistenceId = factory.generateActorId("test-actor-");
1201         DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
1202         config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
1203
1204         List<ReplicatedLogEntry> snapshotUnappliedEntries = new ArrayList<>();
1205         snapshotUnappliedEntries.add(new MockRaftActorContext.MockReplicatedLogEntry(1, 4,
1206                 new MockRaftActorContext.MockPayload("E")));
1207
1208         int snapshotLastApplied = 3;
1209         int snapshotLastIndex = 4;
1210
1211         List<MockPayload> state = Arrays.asList(
1212                 new MockRaftActorContext.MockPayload("A"),
1213                 new MockRaftActorContext.MockPayload("B"),
1214                 new MockRaftActorContext.MockPayload("C"),
1215                 new MockRaftActorContext.MockPayload("D"));
1216         ByteString stateBytes = fromObject(state);
1217
1218         Snapshot snapshot = Snapshot.create(stateBytes.toByteArray(), snapshotUnappliedEntries,
1219                 snapshotLastIndex, 1, snapshotLastApplied, 1, 1, "member-1");
1220
1221         InMemorySnapshotStore.addSnapshotSavedLatch(persistenceId);
1222
1223         TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
1224                 config(config).restoreFromSnapshot(SerializationUtils.serialize(snapshot)).props().
1225                     withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
1226         MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
1227
1228         mockRaftActor.waitForRecoveryComplete();
1229
1230         Snapshot savedSnapshot = InMemorySnapshotStore.waitForSavedSnapshot(persistenceId, Snapshot.class);
1231         assertEquals("getElectionTerm", snapshot.getElectionTerm(), savedSnapshot.getElectionTerm());
1232         assertEquals("getElectionVotedFor", snapshot.getElectionVotedFor(), savedSnapshot.getElectionVotedFor());
1233         assertEquals("getLastAppliedIndex", snapshot.getLastAppliedIndex(), savedSnapshot.getLastAppliedIndex());
1234         assertEquals("getLastAppliedTerm", snapshot.getLastAppliedTerm(), savedSnapshot.getLastAppliedTerm());
1235         assertEquals("getLastIndex", snapshot.getLastIndex(), savedSnapshot.getLastIndex());
1236         assertEquals("getLastTerm", snapshot.getLastTerm(), savedSnapshot.getLastTerm());
1237         assertArrayEquals("getState", snapshot.getState(), savedSnapshot.getState());
1238         assertEquals("getUnAppliedEntries", snapshot.getUnAppliedEntries(), savedSnapshot.getUnAppliedEntries());
1239
1240         verify(mockRaftActor.snapshotCohortDelegate, timeout(5000)).applySnapshot(any(byte[].class));
1241
1242         RaftActorContext context = mockRaftActor.getRaftActorContext();
1243         assertEquals("Journal log size", 1, context.getReplicatedLog().size());
1244         assertEquals("Last index", snapshotLastIndex, context.getReplicatedLog().lastIndex());
1245         assertEquals("Last applied", snapshotLastApplied, context.getLastApplied());
1246         assertEquals("Commit index", snapshotLastApplied, context.getCommitIndex());
1247         assertEquals("Recovered state", state, mockRaftActor.getState());
1248         assertEquals("Current term", 1L, context.getTermInformation().getCurrentTerm());
1249         assertEquals("Voted for", "member-1", context.getTermInformation().getVotedFor());
1250
1251         // Test with data persistence disabled
1252
1253         snapshot = Snapshot.create(new byte[0], Collections.<ReplicatedLogEntry>emptyList(),
1254                 -1, -1, -1, -1, 5, "member-1");
1255
1256         persistenceId = factory.generateActorId("test-actor-");
1257
1258         raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
1259                 config(config).restoreFromSnapshot(SerializationUtils.serialize(snapshot)).
1260                 persistent(Optional.of(Boolean.FALSE)).props().
1261                     withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
1262         mockRaftActor = raftActorRef.underlyingActor();
1263
1264         mockRaftActor.waitForRecoveryComplete();
1265         assertEquals("snapshot committed", true,
1266                 Uninterruptibles.awaitUninterruptibly(mockRaftActor.snapshotCommitted, 5, TimeUnit.SECONDS));
1267
1268         context = mockRaftActor.getRaftActorContext();
1269         assertEquals("Current term", 5L, context.getTermInformation().getCurrentTerm());
1270         assertEquals("Voted for", "member-1", context.getTermInformation().getVotedFor());
1271
1272         TEST_LOG.info("testRestoreFromSnapshot ending");
1273     }
1274
1275     @Test
1276     public void testRestoreFromSnapshotWithRecoveredData() throws Exception {
1277         TEST_LOG.info("testRestoreFromSnapshotWithRecoveredData starting");
1278
1279         String persistenceId = factory.generateActorId("test-actor-");
1280         DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
1281         config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
1282
1283         List<MockPayload> state = Arrays.asList(new MockRaftActorContext.MockPayload("A"));
1284         Snapshot snapshot = Snapshot.create(fromObject(state).toByteArray(), Arrays.<ReplicatedLogEntry>asList(),
1285                 5, 2, 5, 2, 2, "member-1");
1286
1287         InMemoryJournal.addEntry(persistenceId, 1, new MockRaftActorContext.MockReplicatedLogEntry(1, 0,
1288                 new MockRaftActorContext.MockPayload("B")));
1289
1290         TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
1291                 config(config).restoreFromSnapshot(SerializationUtils.serialize(snapshot)).props().
1292                     withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
1293         MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
1294
1295         mockRaftActor.waitForRecoveryComplete();
1296
1297         verify(mockRaftActor.snapshotCohortDelegate, timeout(500).never()).applySnapshot(any(byte[].class));
1298
1299         RaftActorContext context = mockRaftActor.getRaftActorContext();
1300         assertEquals("Journal log size", 1, context.getReplicatedLog().size());
1301         assertEquals("Last index", 0, context.getReplicatedLog().lastIndex());
1302         assertEquals("Last applied", -1, context.getLastApplied());
1303         assertEquals("Commit index", -1, context.getCommitIndex());
1304         assertEquals("Current term", 0, context.getTermInformation().getCurrentTerm());
1305         assertEquals("Voted for", null, context.getTermInformation().getVotedFor());
1306
1307         TEST_LOG.info("testRestoreFromSnapshotWithRecoveredData ending");
1308     }
1309
1310     @Test
1311     public void testNonVotingOnRecovery() throws Exception {
1312         TEST_LOG.info("testNonVotingOnRecovery starting");
1313
1314         DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
1315         config.setElectionTimeoutFactor(1);
1316         config.setHeartBeatInterval(FiniteDuration.create(1, TimeUnit.MILLISECONDS));
1317
1318         String persistenceId = factory.generateActorId("test-actor-");
1319         InMemoryJournal.addEntry(persistenceId, 1,  new MockRaftActorContext.MockReplicatedLogEntry(1, 0,
1320                 new ServerConfigurationPayload(Arrays.asList(new ServerInfo(persistenceId, false)))));
1321
1322         TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
1323                 config(config).props().withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
1324         MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
1325
1326         mockRaftActor.waitForInitializeBehaviorComplete();
1327
1328         // Sleep a bit and verify it didn't get an election timeout and schedule an election.
1329
1330         Uninterruptibles.sleepUninterruptibly(400, TimeUnit.MILLISECONDS);
1331         assertEquals("getRaftState", RaftState.Follower, mockRaftActor.getRaftState());
1332
1333         TEST_LOG.info("testNonVotingOnRecovery ending");
1334     }
1335 }