+/*
+ * 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.raft;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNotSame;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Matchers.same;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.timeout;
+import static org.mockito.Mockito.verify;
import akka.actor.ActorRef;
-import akka.actor.ActorSystem;
import akka.actor.PoisonPill;
import akka.actor.Props;
-import akka.event.Logging;
-import akka.japi.Creator;
+import akka.actor.Status.Failure;
+import akka.actor.Terminated;
+import akka.dispatch.Dispatchers;
+import akka.japi.Procedure;
+import akka.persistence.SaveSnapshotFailure;
+import akka.persistence.SaveSnapshotSuccess;
+import akka.persistence.SnapshotMetadata;
+import akka.persistence.SnapshotOffer;
import akka.testkit.JavaTestKit;
import akka.testkit.TestActorRef;
+import com.google.common.base.Optional;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.util.concurrent.Uninterruptibles;
import com.google.protobuf.ByteString;
-import org.junit.After;
-import org.junit.Test;
-import org.opendaylight.controller.cluster.raft.base.messages.ApplyLogEntries;
-import org.opendaylight.controller.cluster.raft.client.messages.FindLeader;
-import org.opendaylight.controller.cluster.raft.client.messages.FindLeaderReply;
-import org.opendaylight.controller.cluster.raft.utils.MockAkkaJournal;
-import org.opendaylight.controller.cluster.raft.utils.MockSnapshotStore;
-
-import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
+import java.util.HashMap;
import java.util.List;
import java.util.Map;
-
-import static junit.framework.Assert.assertTrue;
-import static junit.framework.TestCase.assertEquals;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import org.apache.commons.lang3.SerializationUtils;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.ArgumentCaptor;
+import org.opendaylight.controller.cluster.DataPersistenceProvider;
+import org.opendaylight.controller.cluster.NonPersistentDataProvider;
+import org.opendaylight.controller.cluster.PersistentDataProvider;
+import org.opendaylight.controller.cluster.notifications.LeaderStateChanged;
+import org.opendaylight.controller.cluster.notifications.RoleChanged;
+import org.opendaylight.controller.cluster.raft.MockRaftActorContext.MockPayload;
+import org.opendaylight.controller.cluster.raft.ServerConfigurationPayload.ServerInfo;
+import org.opendaylight.controller.cluster.raft.base.messages.ApplyJournalEntries;
+import org.opendaylight.controller.cluster.raft.base.messages.ApplySnapshot;
+import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
+import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshot;
+import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
+import org.opendaylight.controller.cluster.raft.base.messages.DeleteEntries;
+import org.opendaylight.controller.cluster.raft.base.messages.LeaderTransitioning;
+import org.opendaylight.controller.cluster.raft.base.messages.SendHeartBeat;
+import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior;
+import org.opendaylight.controller.cluster.raft.base.messages.UpdateElectionTerm;
+import org.opendaylight.controller.cluster.raft.behaviors.Follower;
+import org.opendaylight.controller.cluster.raft.behaviors.Leader;
+import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
+import org.opendaylight.controller.cluster.raft.client.messages.GetSnapshot;
+import org.opendaylight.controller.cluster.raft.client.messages.GetSnapshotReply;
+import org.opendaylight.controller.cluster.raft.messages.AppendEntries;
+import org.opendaylight.controller.cluster.raft.messages.AppendEntriesReply;
+import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
+import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
+import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore;
+import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
+import org.opendaylight.yangtools.concepts.Identifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import scala.concurrent.duration.Duration;
+import scala.concurrent.duration.FiniteDuration;
public class RaftActorTest extends AbstractActorTest {
+ static final Logger TEST_LOG = LoggerFactory.getLogger(RaftActorTest.class);
+
+ private TestActorFactory factory;
+
+ @Before
+ public void setUp(){
+ factory = new TestActorFactory(getSystem());
+ }
@After
- public void tearDown() {
- MockAkkaJournal.clearJournal();
- MockSnapshotStore.setMockSnapshot(null);
+ public void tearDown() throws Exception {
+ factory.close();
+ InMemoryJournal.clear();
+ InMemorySnapshotStore.clear();
}
- public static class MockRaftActor extends RaftActor {
+ @Test
+ public void testConstruction() {
+ new RaftActorTestKit(getSystem(), "testConstruction").waitUntilLeader();
+ }
- private boolean applySnapshotCalled = false;
- private List<Object> state;
+ @Test
+ public void testFindLeaderWhenLeaderIsSelf(){
+ RaftActorTestKit kit = new RaftActorTestKit(getSystem(), "testFindLeader");
+ kit.waitUntilLeader();
+ }
- public MockRaftActor(String id,
- Map<String, String> peerAddresses) {
- super(id, peerAddresses);
- state = new ArrayList<>();
- }
- public RaftActorContext getRaftActorContext() {
- return context;
- }
+ @Test
+ public void testRaftActorRecoveryWithPersistenceEnabled() throws Exception {
+ TEST_LOG.info("testRaftActorRecoveryWithPersistenceEnabled starting");
- public boolean isApplySnapshotCalled() {
- return applySnapshotCalled;
- }
+ new JavaTestKit(getSystem()) {{
+ String persistenceId = factory.generateActorId("follower-");
- public List<Object> getState() {
- return state;
- }
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
- public static Props props(final String id, final Map<String, String> peerAddresses){
- return Props.create(new Creator<MockRaftActor>(){
+ // Set the heartbeat interval high to essentially disable election otherwise the test
+ // may fail if the actor is switched to Leader and the commitIndex is set to the last
+ // log entry.
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
- @Override public MockRaftActor create() throws Exception {
- return new MockRaftActor(id, peerAddresses);
- }
- });
- }
+ ImmutableMap<String, String> peerAddresses = ImmutableMap.<String, String>builder().put("member1", "address").build();
+ ActorRef followerActor = factory.createActor(MockRaftActor.props(persistenceId,
+ peerAddresses, config), persistenceId);
- @Override protected void applyState(ActorRef clientActor, String identifier, Object data) {
- state.add(data);
- }
+ watch(followerActor);
- @Override protected void createSnapshot() {
- throw new UnsupportedOperationException("createSnapshot");
- }
+ List<ReplicatedLogEntry> snapshotUnappliedEntries = new ArrayList<>();
+ ReplicatedLogEntry entry1 = new MockRaftActorContext.MockReplicatedLogEntry(1, 4,
+ new MockRaftActorContext.MockPayload("E"));
+ snapshotUnappliedEntries.add(entry1);
+
+ int lastAppliedDuringSnapshotCapture = 3;
+ int lastIndexDuringSnapshotCapture = 4;
+
+ // 4 messages as part of snapshot, which are applied to state
+ ByteString snapshotBytes = fromObject(Arrays.asList(
+ new MockRaftActorContext.MockPayload("A"),
+ new MockRaftActorContext.MockPayload("B"),
+ new MockRaftActorContext.MockPayload("C"),
+ new MockRaftActorContext.MockPayload("D")));
+
+ Snapshot snapshot = Snapshot.create(snapshotBytes.toByteArray(),
+ snapshotUnappliedEntries, lastIndexDuringSnapshotCapture, 1,
+ lastAppliedDuringSnapshotCapture, 1);
+ InMemorySnapshotStore.addSnapshot(persistenceId, snapshot);
+
+ // add more entries after snapshot is taken
+ List<ReplicatedLogEntry> entries = new ArrayList<>();
+ ReplicatedLogEntry entry2 = new MockRaftActorContext.MockReplicatedLogEntry(1, 5,
+ new MockRaftActorContext.MockPayload("F", 2));
+ ReplicatedLogEntry entry3 = new MockRaftActorContext.MockReplicatedLogEntry(1, 6,
+ new MockRaftActorContext.MockPayload("G", 3));
+ ReplicatedLogEntry entry4 = new MockRaftActorContext.MockReplicatedLogEntry(1, 7,
+ new MockRaftActorContext.MockPayload("H", 4));
+ entries.add(entry2);
+ entries.add(entry3);
+ entries.add(entry4);
+
+ int lastAppliedToState = 5;
+ int lastIndex = 7;
+
+ InMemoryJournal.addEntry(persistenceId, 5, entry2);
+ // 2 entries are applied to state besides the 4 entries in snapshot
+ InMemoryJournal.addEntry(persistenceId, 6, new ApplyJournalEntries(lastAppliedToState));
+ InMemoryJournal.addEntry(persistenceId, 7, entry3);
+ InMemoryJournal.addEntry(persistenceId, 8, entry4);
+
+ // kill the actor
+ followerActor.tell(PoisonPill.getInstance(), null);
+ expectMsgClass(duration("5 seconds"), Terminated.class);
+
+ unwatch(followerActor);
+
+ //reinstate the actor
+ TestActorRef<MockRaftActor> ref = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, config));
+
+ MockRaftActor mockRaftActor = ref.underlyingActor();
+
+ mockRaftActor.waitForRecoveryComplete();
+
+ RaftActorContext context = mockRaftActor.getRaftActorContext();
+ assertEquals("Journal log size", snapshotUnappliedEntries.size() + entries.size(),
+ context.getReplicatedLog().size());
+ assertEquals("Journal data size", 10, context.getReplicatedLog().dataSize());
+ assertEquals("Last index", lastIndex, context.getReplicatedLog().lastIndex());
+ assertEquals("Last applied", lastAppliedToState, context.getLastApplied());
+ assertEquals("Commit index", lastAppliedToState, context.getCommitIndex());
+ assertEquals("Recovered state size", 6, mockRaftActor.getState().size());
+
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ assertEquals("getRaftState", RaftState.Follower, mockRaftActor.getRaftState());
+ }};
+
+ TEST_LOG.info("testRaftActorRecoveryWithPersistenceEnabled ending");
+ }
+
+ @Test
+ public void testRaftActorRecoveryWithPersistenceDisabled() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ String persistenceId = factory.generateActorId("follower-");
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+
+ TestActorRef<MockRaftActor> ref = factory.createTestActor(MockRaftActor.props(persistenceId,
+ ImmutableMap.<String, String>builder().put("member1", "address").build(),
+ config, new NonPersistentDataProvider()), persistenceId);
+
+ MockRaftActor mockRaftActor = ref.underlyingActor();
+
+ mockRaftActor.waitForRecoveryComplete();
+
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ assertEquals("getRaftState", RaftState.Follower, mockRaftActor.getRaftState());
+ }};
+ }
+
+ @Test
+ public void testUpdateElectionTermPersistedWithPersistenceDisabled() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ String persistenceId = factory.generateActorId("follower-");
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setHeartBeatInterval(new FiniteDuration(100, TimeUnit.MILLISECONDS));
+ config.setElectionTimeoutFactor(1);
+
+ InMemoryJournal.addWriteMessagesCompleteLatch(persistenceId, 1);
+
+ TestActorRef<MockRaftActor> ref = factory.createTestActor(MockRaftActor.props(persistenceId,
+ ImmutableMap.<String, String>builder().put("member1", "address").build(),
+ config, new NonPersistentDataProvider()).
+ withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+
+ InMemoryJournal.waitForWriteMessagesComplete(persistenceId);
+ List<UpdateElectionTerm> entries = InMemoryJournal.get(persistenceId, UpdateElectionTerm.class);
+ assertEquals("UpdateElectionTerm entries", 1, entries.size());
+ UpdateElectionTerm updateEntry = entries.get(0);
+
+ factory.killActor(ref, this);
+
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ ref = factory.createTestActor(MockRaftActor.props(persistenceId,
+ ImmutableMap.<String, String>builder().put("member1", "address").build(), config,
+ new NonPersistentDataProvider()).
+ withDispatcher(Dispatchers.DefaultDispatcherId()),
+ factory.generateActorId("follower-"));
+
+ MockRaftActor actor = ref.underlyingActor();
+ actor.waitForRecoveryComplete();
+
+ RaftActorContext newContext = actor.getRaftActorContext();
+ assertEquals("electionTerm", updateEntry.getCurrentTerm(),
+ newContext.getTermInformation().getCurrentTerm());
+ assertEquals("votedFor", updateEntry.getVotedFor(), newContext.getTermInformation().getVotedFor());
+
+ entries = InMemoryJournal.get(persistenceId, UpdateElectionTerm.class);
+ assertEquals("UpdateElectionTerm entries", 1, entries.size());
+ }};
+ }
+
+ @Test
+ public void testRaftActorForwardsToRaftActorRecoverySupport() {
+ String persistenceId = factory.generateActorId("leader-");
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
+ Collections.<String, String>emptyMap(), config), persistenceId);
+
+ MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
+
+ // Wait for akka's recovery to complete so it doesn't interfere.
+ mockRaftActor.waitForRecoveryComplete();
+
+ RaftActorRecoverySupport mockSupport = mock(RaftActorRecoverySupport.class);
+ mockRaftActor.setRaftActorRecoverySupport(mockSupport );
+
+ Snapshot snapshot = Snapshot.create(new byte[]{1}, Collections.<ReplicatedLogEntry>emptyList(), 3, 1, 3, 1);
+ SnapshotOffer snapshotOffer = new SnapshotOffer(new SnapshotMetadata("test", 6, 12345), snapshot);
+ mockRaftActor.handleRecover(snapshotOffer);
+
+ MockRaftActorContext.MockReplicatedLogEntry logEntry = new MockRaftActorContext.MockReplicatedLogEntry(1,
+ 1, new MockRaftActorContext.MockPayload("1", 5));
+ mockRaftActor.handleRecover(logEntry);
+
+ ApplyJournalEntries applyJournalEntries = new ApplyJournalEntries(2);
+ mockRaftActor.handleRecover(applyJournalEntries);
+
+ DeleteEntries deleteEntries = new DeleteEntries(1);
+ mockRaftActor.handleRecover(deleteEntries);
+
+ org.opendaylight.controller.cluster.raft.RaftActor.DeleteEntries deprecatedDeleteEntries =
+ new org.opendaylight.controller.cluster.raft.RaftActor.DeleteEntries(1);
+ mockRaftActor.handleRecover(deprecatedDeleteEntries);
+
+ UpdateElectionTerm updateElectionTerm = new UpdateElectionTerm(5, "member2");
+ mockRaftActor.handleRecover(updateElectionTerm);
+
+ org.opendaylight.controller.cluster.raft.RaftActor.UpdateElectionTerm deprecatedUpdateElectionTerm =
+ new org.opendaylight.controller.cluster.raft.RaftActor.UpdateElectionTerm(6, "member3");
+ mockRaftActor.handleRecover(deprecatedUpdateElectionTerm);
+
+ verify(mockSupport).handleRecoveryMessage(same(snapshotOffer), any(PersistentDataProvider.class));
+ verify(mockSupport).handleRecoveryMessage(same(logEntry), any(PersistentDataProvider.class));
+ verify(mockSupport).handleRecoveryMessage(same(applyJournalEntries), any(PersistentDataProvider.class));
+ verify(mockSupport).handleRecoveryMessage(same(deleteEntries), any(PersistentDataProvider.class));
+ verify(mockSupport).handleRecoveryMessage(same(deprecatedDeleteEntries), any(PersistentDataProvider.class));
+ verify(mockSupport).handleRecoveryMessage(same(updateElectionTerm), any(PersistentDataProvider.class));
+ verify(mockSupport).handleRecoveryMessage(same(deprecatedUpdateElectionTerm), any(PersistentDataProvider.class));
+ }
+
+ @Test
+ public void testRaftActorForwardsToRaftActorSnapshotMessageSupport() {
+ String persistenceId = factory.generateActorId("leader-");
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+
+ RaftActorSnapshotMessageSupport mockSupport = mock(RaftActorSnapshotMessageSupport.class);
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).snapshotMessageSupport(mockSupport).props());
+
+ MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
+
+ // Wait for akka's recovery to complete so it doesn't interfere.
+ mockRaftActor.waitForRecoveryComplete();
+
+ ApplySnapshot applySnapshot = new ApplySnapshot(mock(Snapshot.class));
+ doReturn(true).when(mockSupport).handleSnapshotMessage(same(applySnapshot), any(ActorRef.class));
+ mockRaftActor.handleCommand(applySnapshot);
+
+ CaptureSnapshot captureSnapshot = new CaptureSnapshot(1, 1, 1, 1, 0, 1, null);
+ doReturn(true).when(mockSupport).handleSnapshotMessage(same(captureSnapshot), any(ActorRef.class));
+ mockRaftActor.handleCommand(captureSnapshot);
+
+ CaptureSnapshotReply captureSnapshotReply = new CaptureSnapshotReply(new byte[0]);
+ doReturn(true).when(mockSupport).handleSnapshotMessage(same(captureSnapshotReply), any(ActorRef.class));
+ mockRaftActor.handleCommand(captureSnapshotReply);
+
+ SaveSnapshotSuccess saveSnapshotSuccess = new SaveSnapshotSuccess(new SnapshotMetadata("", 0L, 0L));
+ doReturn(true).when(mockSupport).handleSnapshotMessage(same(saveSnapshotSuccess), any(ActorRef.class));
+ mockRaftActor.handleCommand(saveSnapshotSuccess);
+
+ SaveSnapshotFailure saveSnapshotFailure = new SaveSnapshotFailure(new SnapshotMetadata("", 0L, 0L), new Throwable());
+ doReturn(true).when(mockSupport).handleSnapshotMessage(same(saveSnapshotFailure), any(ActorRef.class));
+ mockRaftActor.handleCommand(saveSnapshotFailure);
+
+ doReturn(true).when(mockSupport).handleSnapshotMessage(same(RaftActorSnapshotMessageSupport.COMMIT_SNAPSHOT),
+ any(ActorRef.class));
+ mockRaftActor.handleCommand(RaftActorSnapshotMessageSupport.COMMIT_SNAPSHOT);
+
+ doReturn(true).when(mockSupport).handleSnapshotMessage(same(GetSnapshot.INSTANCE), any(ActorRef.class));
+ mockRaftActor.handleCommand(GetSnapshot.INSTANCE);
+
+ verify(mockSupport).handleSnapshotMessage(same(applySnapshot), any(ActorRef.class));
+ verify(mockSupport).handleSnapshotMessage(same(captureSnapshot), any(ActorRef.class));
+ verify(mockSupport).handleSnapshotMessage(same(captureSnapshotReply), any(ActorRef.class));
+ verify(mockSupport).handleSnapshotMessage(same(saveSnapshotSuccess), any(ActorRef.class));
+ verify(mockSupport).handleSnapshotMessage(same(saveSnapshotFailure), any(ActorRef.class));
+ verify(mockSupport).handleSnapshotMessage(same(RaftActorSnapshotMessageSupport.COMMIT_SNAPSHOT),
+ any(ActorRef.class));
+ verify(mockSupport).handleSnapshotMessage(same(GetSnapshot.INSTANCE), any(ActorRef.class));
+ }
+
+ @Test
+ public void testApplyJournalEntriesCallsDataPersistence() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ String persistenceId = factory.generateActorId("leader-");
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+
+ DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
+ Collections.<String, String>emptyMap(), config, dataPersistenceProvider), persistenceId);
+
+ MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
+
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ mockRaftActor.waitUntilLeader();
+
+ mockRaftActor.onReceiveCommand(new ApplyJournalEntries(10));
+
+ verify(dataPersistenceProvider).persist(any(ApplyJournalEntries.class), any(Procedure.class));
- @Override protected void applySnapshot(ByteString snapshot) {
- applySnapshotCalled = true;
- try {
- Object data = toObject(snapshot);
- if (data instanceof List) {
- state.addAll((List) data);
- }
- } catch (ClassNotFoundException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
}
- }
- @Override protected void onStateChanged() {
- }
+ };
+ }
- @Override public String persistenceId() {
- return this.getId();
- }
+ @Test
+ public void testApplyState() throws Exception {
+
+ new JavaTestKit(getSystem()) {
+ {
+ String persistenceId = factory.generateActorId("leader-");
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+
+ DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
+ Collections.<String, String>emptyMap(), config, dataPersistenceProvider), persistenceId);
+
+ MockRaftActor mockRaftActor = mockActorRef.underlyingActor();
+
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ ReplicatedLogEntry entry = new MockRaftActorContext.MockReplicatedLogEntry(1, 5,
+ new MockRaftActorContext.MockPayload("F"));
+
+ final Identifier id = new MockIdentifier("apply-state");
+ mockRaftActor.onReceiveCommand(new ApplyState(mockActorRef, id, entry));
+
+ verify(mockRaftActor.actorDelegate).applyState(eq(mockActorRef), eq(id), anyObject());
+
+ }
+ };
+ }
+
+ @Test
+ public void testRaftRoleChangeNotifierWhenRaftActorHasNoPeers() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ TestActorRef<MessageCollectorActor> notifierActor = factory.createTestActor(
+ Props.create(MessageCollectorActor.class));
+ MessageCollectorActor.waitUntilReady(notifierActor);
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ long heartBeatInterval = 100;
+ config.setHeartBeatInterval(FiniteDuration.create(heartBeatInterval, TimeUnit.MILLISECONDS));
+ config.setElectionTimeoutFactor(20);
- private Object toObject(ByteString bs) throws ClassNotFoundException, IOException {
- Object obj = null;
- ByteArrayInputStream bis = null;
- ObjectInputStream ois = null;
- try {
- bis = new ByteArrayInputStream(bs.toByteArray());
- ois = new ObjectInputStream(bis);
- obj = ois.readObject();
- } finally {
- if (bis != null) {
- bis.close();
+ String persistenceId = factory.generateActorId("notifier-");
+
+ TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).roleChangeNotifier(notifierActor).dataPersistenceProvider(
+ new NonPersistentDataProvider()).props().withDispatcher(Dispatchers.DefaultDispatcherId()),
+ persistenceId);
+
+ List<RoleChanged> matches = MessageCollectorActor.expectMatching(notifierActor, RoleChanged.class, 3);
+
+
+ // check if the notifier got a role change from null to Follower
+ RoleChanged raftRoleChanged = matches.get(0);
+ assertEquals(persistenceId, raftRoleChanged.getMemberId());
+ assertNull(raftRoleChanged.getOldRole());
+ assertEquals(RaftState.Follower.name(), raftRoleChanged.getNewRole());
+
+ // check if the notifier got a role change from Follower to Candidate
+ raftRoleChanged = matches.get(1);
+ assertEquals(persistenceId, raftRoleChanged.getMemberId());
+ assertEquals(RaftState.Follower.name(), raftRoleChanged.getOldRole());
+ assertEquals(RaftState.Candidate.name(), raftRoleChanged.getNewRole());
+
+ // check if the notifier got a role change from Candidate to Leader
+ raftRoleChanged = matches.get(2);
+ assertEquals(persistenceId, raftRoleChanged.getMemberId());
+ assertEquals(RaftState.Candidate.name(), raftRoleChanged.getOldRole());
+ assertEquals(RaftState.Leader.name(), raftRoleChanged.getNewRole());
+
+ LeaderStateChanged leaderStateChange = MessageCollectorActor.expectFirstMatching(
+ notifierActor, LeaderStateChanged.class);
+
+ assertEquals(raftRoleChanged.getMemberId(), leaderStateChange.getLeaderId());
+ assertEquals(MockRaftActor.PAYLOAD_VERSION, leaderStateChange.getLeaderPayloadVersion());
+
+ notifierActor.underlyingActor().clear();
+
+ MockRaftActor raftActor = raftActorRef.underlyingActor();
+ final String newLeaderId = "new-leader";
+ final short newLeaderVersion = 6;
+ Follower follower = new Follower(raftActor.getRaftActorContext()) {
+ @Override
+ public RaftActorBehavior handleMessage(ActorRef sender, Object message) {
+ setLeaderId(newLeaderId);
+ setLeaderPayloadVersion(newLeaderVersion);
+ return this;
}
- if (ois != null) {
- ois.close();
+ };
+
+ raftActor.newBehavior(follower);
+
+ leaderStateChange = MessageCollectorActor.expectFirstMatching(notifierActor, LeaderStateChanged.class);
+ assertEquals(persistenceId, leaderStateChange.getMemberId());
+ assertEquals(null, leaderStateChange.getLeaderId());
+
+ raftRoleChanged = MessageCollectorActor.expectFirstMatching(notifierActor, RoleChanged.class);
+ assertEquals(RaftState.Leader.name(), raftRoleChanged.getOldRole());
+ assertEquals(RaftState.Follower.name(), raftRoleChanged.getNewRole());
+
+ notifierActor.underlyingActor().clear();
+
+ raftActor.handleCommand("any");
+
+ leaderStateChange = MessageCollectorActor.expectFirstMatching(notifierActor, LeaderStateChanged.class);
+ assertEquals(persistenceId, leaderStateChange.getMemberId());
+ assertEquals(newLeaderId, leaderStateChange.getLeaderId());
+ assertEquals(newLeaderVersion, leaderStateChange.getLeaderPayloadVersion());
+
+ notifierActor.underlyingActor().clear();
+
+ raftActor.handleCommand("any");
+
+ Uninterruptibles.sleepUninterruptibly(505, TimeUnit.MILLISECONDS);
+ leaderStateChange = MessageCollectorActor.getFirstMatching(notifierActor, LeaderStateChanged.class);
+ assertNull(leaderStateChange);
+ }};
+ }
+
+ @Test
+ public void testRaftRoleChangeNotifierWhenRaftActorHasPeers() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ ActorRef notifierActor = factory.createActor(Props.create(MessageCollectorActor.class));
+ MessageCollectorActor.waitUntilReady(notifierActor);
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ long heartBeatInterval = 100;
+ config.setHeartBeatInterval(FiniteDuration.create(heartBeatInterval, TimeUnit.MILLISECONDS));
+ config.setElectionTimeoutFactor(1);
+
+ String persistenceId = factory.generateActorId("notifier-");
+
+ factory.createActor(MockRaftActor.builder().id(persistenceId).
+ peerAddresses(ImmutableMap.of("leader", "fake/path")).
+ config(config).roleChangeNotifier(notifierActor).props());
+
+ List<RoleChanged> matches = null;
+ for(int i = 0; i < 5000 / heartBeatInterval; i++) {
+ matches = MessageCollectorActor.getAllMatching(notifierActor, RoleChanged.class);
+ assertNotNull(matches);
+ if(matches.size() == 3) {
+ break;
}
+ Uninterruptibles.sleepUninterruptibly(heartBeatInterval, TimeUnit.MILLISECONDS);
}
- return obj;
- }
+ assertNotNull(matches);
+ assertEquals(2, matches.size());
+
+ // check if the notifier got a role change from null to Follower
+ RoleChanged raftRoleChanged = matches.get(0);
+ assertEquals(persistenceId, raftRoleChanged.getMemberId());
+ assertNull(raftRoleChanged.getOldRole());
+ assertEquals(RaftState.Follower.name(), raftRoleChanged.getNewRole());
+
+ // check if the notifier got a role change from Follower to Candidate
+ raftRoleChanged = matches.get(1);
+ assertEquals(persistenceId, raftRoleChanged.getMemberId());
+ assertEquals(RaftState.Follower.name(), raftRoleChanged.getOldRole());
+ assertEquals(RaftState.Candidate.name(), raftRoleChanged.getNewRole());
+ }};
}
+ @Test
+ public void testFakeSnapshotsForLeaderWithInRealSnapshots() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ String persistenceId = factory.generateActorId("leader-");
+ String follower1Id = factory.generateActorId("follower-");
+
+ ActorRef followerActor1 =
+ factory.createActor(Props.create(MessageCollectorActor.class));
- private static class RaftActorTestKit extends JavaTestKit {
- private final ActorRef raftActor;
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
- public RaftActorTestKit(ActorSystem actorSystem, String actorName) {
- super(actorSystem);
+ DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
- raftActor = this.getSystem()
- .actorOf(MockRaftActor.props(actorName,
- Collections.EMPTY_MAP), actorName);
+ Map<String, String> peerAddresses = new HashMap<>();
+ peerAddresses.put(follower1Id, followerActor1.path().toString());
- }
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
+ MockRaftActor leaderActor = mockActorRef.underlyingActor();
- public boolean waitForStartup(){
- // Wait for a specific log message to show up
- return
- new JavaTestKit.EventFilter<Boolean>(Logging.Info.class
- ) {
- protected Boolean run() {
- return true;
- }
- }.from(raftActor.path().toString())
- .message("Switching from state Candidate to Leader")
- .occurrences(1).exec();
+ leaderActor.getRaftActorContext().setCommitIndex(4);
+ leaderActor.getRaftActorContext().setLastApplied(4);
+ leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
+ leaderActor.waitForInitializeBehaviorComplete();
- }
+ // create 8 entries in the log - 0 to 4 are applied and will get picked up as part of the capture snapshot
- public void findLeader(final String expectedLeader){
+ Leader leader = new Leader(leaderActor.getRaftActorContext());
+ leaderActor.setCurrentBehavior(leader);
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+ MockRaftActorContext.MockReplicatedLogBuilder logBuilder = new MockRaftActorContext.MockReplicatedLogBuilder();
+ leaderActor.getRaftActorContext().setReplicatedLog(logBuilder.createEntries(0, 8, 1).build());
- new Within(duration("1 seconds")) {
- protected void run() {
+ assertEquals(8, leaderActor.getReplicatedLog().size());
- raftActor.tell(new FindLeader(), getRef());
+ leaderActor.getRaftActorContext().getSnapshotManager()
+ .capture(new MockRaftActorContext.MockReplicatedLogEntry(1, 6,
+ new MockRaftActorContext.MockPayload("x")), 4);
- String s = new ExpectMsg<String>(duration("1 seconds"),
- "findLeader") {
- // do not put code outside this method, will run afterwards
- protected String match(Object in) {
- if (in instanceof FindLeaderReply) {
- return ((FindLeaderReply) in).getLeaderActor();
- } else {
- throw noMatch();
- }
- }
- }.get();// this extracts the received message
+ verify(leaderActor.snapshotCohortDelegate).createSnapshot(any(ActorRef.class));
- assertEquals(expectedLeader, s);
+ assertEquals(8, leaderActor.getReplicatedLog().size());
- }
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+ //fake snapshot on index 5
+ leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 5, 1, (short)0));
+ assertEquals(8, leaderActor.getReplicatedLog().size());
- };
- }
+ //fake snapshot on index 6
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+ leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 6, 1, (short)0));
+ assertEquals(8, leaderActor.getReplicatedLog().size());
- public ActorRef getRaftActor() {
- return raftActor;
- }
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ assertEquals(8, leaderActor.getReplicatedLog().size());
+
+ ByteString snapshotBytes = fromObject(Arrays.asList(
+ new MockRaftActorContext.MockPayload("foo-0"),
+ new MockRaftActorContext.MockPayload("foo-1"),
+ new MockRaftActorContext.MockPayload("foo-2"),
+ new MockRaftActorContext.MockPayload("foo-3"),
+ new MockRaftActorContext.MockPayload("foo-4")));
+
+ leaderActor.getRaftActorContext().getSnapshotManager().persist(snapshotBytes.toByteArray(),
+ Runtime.getRuntime().totalMemory());
+
+ assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
+ // The commit is needed to complete the snapshot creation process
+ leaderActor.getRaftActorContext().getSnapshotManager().commit(-1);
+
+ // capture snapshot reply should remove the snapshotted entries only
+ assertEquals(3, leaderActor.getReplicatedLog().size());
+ assertEquals(7, leaderActor.getReplicatedLog().lastIndex());
+
+ // add another non-replicated entry
+ leaderActor.getReplicatedLog().append(
+ new ReplicatedLogImplEntry(8, 1, new MockRaftActorContext.MockPayload("foo-8")));
+
+ //fake snapshot on index 7, since lastApplied = 7 , we would keep the last applied
+ leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 7, 1, (short)0));
+ assertEquals(2, leaderActor.getReplicatedLog().size());
+ assertEquals(8, leaderActor.getReplicatedLog().lastIndex());
+
+ }
+ };
}
+ @Test
+ public void testFakeSnapshotsForFollowerWithInRealSnapshots() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ String persistenceId = factory.generateActorId("follower-");
+ String leaderId = factory.generateActorId("leader-");
+
+
+ ActorRef leaderActor1 =
+ factory.createActor(Props.create(MessageCollectorActor.class));
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
+
+ DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
+
+ Map<String, String> peerAddresses = new HashMap<>();
+ peerAddresses.put(leaderId, leaderActor1.path().toString());
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
+
+ MockRaftActor followerActor = mockActorRef.underlyingActor();
+ followerActor.getRaftActorContext().setCommitIndex(4);
+ followerActor.getRaftActorContext().setLastApplied(4);
+ followerActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
+
+ followerActor.waitForInitializeBehaviorComplete();
+
+
+ Follower follower = new Follower(followerActor.getRaftActorContext());
+ followerActor.setCurrentBehavior(follower);
+ assertEquals(RaftState.Follower, followerActor.getCurrentBehavior().state());
+
+ // create 6 entries in the log - 0 to 4 are applied and will get picked up as part of the capture snapshot
+ MockRaftActorContext.MockReplicatedLogBuilder logBuilder = new MockRaftActorContext.MockReplicatedLogBuilder();
+ followerActor.getRaftActorContext().setReplicatedLog(logBuilder.createEntries(0, 6, 1).build());
+
+ // log has indices 0-5
+ assertEquals(6, followerActor.getReplicatedLog().size());
+
+ //snapshot on 4
+ followerActor.getRaftActorContext().getSnapshotManager().capture(
+ new MockRaftActorContext.MockReplicatedLogEntry(1, 5,
+ new MockRaftActorContext.MockPayload("D")), 4);
+
+ verify(followerActor.snapshotCohortDelegate).createSnapshot(any(ActorRef.class));
+
+ assertEquals(6, followerActor.getReplicatedLog().size());
+
+ //fake snapshot on index 6
+ List<ReplicatedLogEntry> entries =
+ Arrays.asList(
+ (ReplicatedLogEntry) new MockRaftActorContext.MockReplicatedLogEntry(1, 6,
+ new MockRaftActorContext.MockPayload("foo-6"))
+ );
+ followerActor.onReceiveCommand(new AppendEntries(1, leaderId, 5, 1, entries, 5, 5, (short)0));
+ assertEquals(7, followerActor.getReplicatedLog().size());
+
+ //fake snapshot on index 7
+ assertEquals(RaftState.Follower, followerActor.getCurrentBehavior().state());
+
+ entries =
+ Arrays.asList(
+ (ReplicatedLogEntry) new MockRaftActorContext.MockReplicatedLogEntry(1, 7,
+ new MockRaftActorContext.MockPayload("foo-7"))
+ );
+ followerActor.onReceiveCommand(new AppendEntries(1, leaderId, 6, 1, entries, 6, 6, (short) 0));
+ assertEquals(8, followerActor.getReplicatedLog().size());
+
+ assertEquals(RaftState.Follower, followerActor.getCurrentBehavior().state());
+
+
+ ByteString snapshotBytes = fromObject(Arrays.asList(
+ new MockRaftActorContext.MockPayload("foo-0"),
+ new MockRaftActorContext.MockPayload("foo-1"),
+ new MockRaftActorContext.MockPayload("foo-2"),
+ new MockRaftActorContext.MockPayload("foo-3"),
+ new MockRaftActorContext.MockPayload("foo-4")));
+ followerActor.onReceiveCommand(new CaptureSnapshotReply(snapshotBytes.toByteArray()));
+ assertTrue(followerActor.getRaftActorContext().getSnapshotManager().isCapturing());
+
+ // The commit is needed to complete the snapshot creation process
+ followerActor.getRaftActorContext().getSnapshotManager().commit(-1);
+
+ // capture snapshot reply should remove the snapshotted entries only till replicatedToAllIndex
+ assertEquals(3, followerActor.getReplicatedLog().size()); //indexes 5,6,7 left in the log
+ assertEquals(7, followerActor.getReplicatedLog().lastIndex());
+
+ entries =
+ Arrays.asList(
+ (ReplicatedLogEntry) new MockRaftActorContext.MockReplicatedLogEntry(1, 8,
+ new MockRaftActorContext.MockPayload("foo-7"))
+ );
+ // send an additional entry 8 with leaderCommit = 7
+ followerActor.onReceiveCommand(new AppendEntries(1, leaderId, 7, 1, entries, 7, 7, (short) 0));
+
+ // 7 and 8, as lastapplied is 7
+ assertEquals(2, followerActor.getReplicatedLog().size());
+
+ }
+ };
+ }
@Test
- public void testConstruction() {
- boolean started = new RaftActorTestKit(getSystem(), "testConstruction").waitForStartup();
- assertEquals(true, started);
+ public void testFakeSnapshotsForLeaderWithInInitiateSnapshots() throws Exception {
+ new JavaTestKit(getSystem()) {
+ {
+ String persistenceId = factory.generateActorId("leader-");
+ String follower1Id = factory.generateActorId("follower-");
+ String follower2Id = factory.generateActorId("follower-");
+
+ ActorRef followerActor1 =
+ factory.createActor(Props.create(MessageCollectorActor.class), follower1Id);
+ ActorRef followerActor2 =
+ factory.createActor(Props.create(MessageCollectorActor.class), follower2Id);
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
+
+ DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
+
+ Map<String, String> peerAddresses = new HashMap<>();
+ peerAddresses.put(follower1Id, followerActor1.path().toString());
+ peerAddresses.put(follower2Id, followerActor2.path().toString());
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
+
+ MockRaftActor leaderActor = mockActorRef.underlyingActor();
+ leaderActor.getRaftActorContext().setCommitIndex(9);
+ leaderActor.getRaftActorContext().setLastApplied(9);
+ leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
+
+ leaderActor.waitForInitializeBehaviorComplete();
+
+ Leader leader = new Leader(leaderActor.getRaftActorContext());
+ leaderActor.setCurrentBehavior(leader);
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ // create 5 entries in the log
+ MockRaftActorContext.MockReplicatedLogBuilder logBuilder = new MockRaftActorContext.MockReplicatedLogBuilder();
+ leaderActor.getRaftActorContext().setReplicatedLog(logBuilder.createEntries(5, 10, 1).build());
+
+ //set the snapshot index to 4 , 0 to 4 are snapshotted
+ leaderActor.getRaftActorContext().getReplicatedLog().setSnapshotIndex(4);
+ //setting replicatedToAllIndex = 9, for the log to clear
+ leader.setReplicatedToAllIndex(9);
+ assertEquals(5, leaderActor.getReplicatedLog().size());
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ leaderActor.onReceiveCommand(new AppendEntriesReply(follower1Id, 1, true, 9, 1, (short) 0));
+ assertEquals(5, leaderActor.getReplicatedLog().size());
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ // set the 2nd follower nextIndex to 1 which has been snapshotted
+ leaderActor.onReceiveCommand(new AppendEntriesReply(follower2Id, 1, true, 0, 1, (short)0));
+ assertEquals(5, leaderActor.getReplicatedLog().size());
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ // simulate a real snapshot
+ leaderActor.onReceiveCommand(SendHeartBeat.INSTANCE);
+ assertEquals(5, leaderActor.getReplicatedLog().size());
+ assertEquals(String.format("expected to be Leader but was %s. Current Leader = %s ",
+ leaderActor.getCurrentBehavior().state(), leaderActor.getLeaderId())
+ , RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+
+ //reply from a slow follower does not initiate a fake snapshot
+ leaderActor.onReceiveCommand(new AppendEntriesReply(follower2Id, 1, true, 9, 1, (short)0));
+ assertEquals("Fake snapshot should not happen when Initiate is in progress", 5, leaderActor.getReplicatedLog().size());
+
+ ByteString snapshotBytes = fromObject(Arrays.asList(
+ new MockRaftActorContext.MockPayload("foo-0"),
+ new MockRaftActorContext.MockPayload("foo-1"),
+ new MockRaftActorContext.MockPayload("foo-2"),
+ new MockRaftActorContext.MockPayload("foo-3"),
+ new MockRaftActorContext.MockPayload("foo-4")));
+ leaderActor.onReceiveCommand(new CaptureSnapshotReply(snapshotBytes.toByteArray()));
+ assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
+
+ assertEquals("Real snapshot didn't clear the log till replicatedToAllIndex", 0, leaderActor.getReplicatedLog().size());
+
+ //reply from a slow follower after should not raise errors
+ leaderActor.onReceiveCommand(new AppendEntriesReply(follower2Id, 1, true, 5, 1, (short) 0));
+ assertEquals(0, leaderActor.getReplicatedLog().size());
+ }
+ };
}
@Test
- public void testFindLeaderWhenLeaderIsSelf(){
- RaftActorTestKit kit = new RaftActorTestKit(getSystem(), "testFindLeader");
- kit.waitForStartup();
- kit.findLeader(kit.getRaftActor().path().toString());
+ public void testRealSnapshotWhenReplicatedToAllIndexMinusOne() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ String persistenceId = factory.generateActorId("leader-");
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setSnapshotBatchCount(5);
+
+ DataPersistenceProvider dataPersistenceProvider = new NonPersistentDataProvider();
+
+ Map<String, String> peerAddresses = ImmutableMap.<String, String>builder().put("member1", "address").build();
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
+
+ MockRaftActor leaderActor = mockActorRef.underlyingActor();
+ leaderActor.getRaftActorContext().setCommitIndex(3);
+ leaderActor.getRaftActorContext().setLastApplied(3);
+ leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
+
+ leaderActor.waitForInitializeBehaviorComplete();
+ for(int i=0;i< 4;i++) {
+ leaderActor.getReplicatedLog()
+ .append(new MockRaftActorContext.MockReplicatedLogEntry(1, i,
+ new MockRaftActorContext.MockPayload("A")));
+ }
+
+ Leader leader = new Leader(leaderActor.getRaftActorContext());
+ leaderActor.setCurrentBehavior(leader);
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ // Simulate an install snaphost to a follower.
+ leaderActor.getRaftActorContext().getSnapshotManager().captureToInstall(
+ leaderActor.getReplicatedLog().last(), -1, "member1");
+
+ // Now send a CaptureSnapshotReply
+ mockActorRef.tell(new CaptureSnapshotReply(fromObject("foo").toByteArray()), mockActorRef);
+
+ // Trimming log in this scenario is a no-op
+ assertEquals(-1, leaderActor.getReplicatedLog().getSnapshotIndex());
+ assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
+ assertEquals(-1, leader.getReplicatedToAllIndex());
+
+ }};
}
@Test
- public void testRaftActorRecovery() {
+ public void testRealSnapshotWhenReplicatedToAllIndexNotInReplicatedLog() throws Exception {
new JavaTestKit(getSystem()) {{
- new Within(duration("1 seconds")) {
- protected void run() {
-
- String persistenceId = "follower10";
-
- ActorRef followerActor = getSystem().actorOf(
- MockRaftActor.props(persistenceId, Collections.EMPTY_MAP), persistenceId);
-
- List<ReplicatedLogEntry> snapshotUnappliedEntries = new ArrayList<>();
- ReplicatedLogEntry entry1 = new MockRaftActorContext.MockReplicatedLogEntry(1, 4, new MockRaftActorContext.MockPayload("E"));
- snapshotUnappliedEntries.add(entry1);
-
- int lastAppliedDuringSnapshotCapture = 3;
- int lastIndexDuringSnapshotCapture = 4;
-
- ByteString snapshotBytes = null;
- try {
- // 4 messages as part of snapshot, which are applied to state
- snapshotBytes = fromObject(Arrays.asList(new MockRaftActorContext.MockPayload("A"),
- new MockRaftActorContext.MockPayload("B"),
- new MockRaftActorContext.MockPayload("C"),
- new MockRaftActorContext.MockPayload("D")));
- } catch (Exception e) {
- e.printStackTrace();
- }
- Snapshot snapshot = Snapshot.create(snapshotBytes.toByteArray(),
- snapshotUnappliedEntries, lastIndexDuringSnapshotCapture, 1 ,
- lastAppliedDuringSnapshotCapture, 1);
- MockSnapshotStore.setMockSnapshot(snapshot);
- MockSnapshotStore.setPersistenceId(persistenceId);
-
- // add more entries after snapshot is taken
- List<ReplicatedLogEntry> entries = new ArrayList<>();
- ReplicatedLogEntry entry2 = new MockRaftActorContext.MockReplicatedLogEntry(1, 5, new MockRaftActorContext.MockPayload("F"));
- ReplicatedLogEntry entry3 = new MockRaftActorContext.MockReplicatedLogEntry(1, 6, new MockRaftActorContext.MockPayload("G"));
- ReplicatedLogEntry entry4 = new MockRaftActorContext.MockReplicatedLogEntry(1, 7, new MockRaftActorContext.MockPayload("H"));
- entries.add(entry2);
- entries.add(entry3);
- entries.add(entry4);
-
- int lastAppliedToState = 5;
- int lastIndex = 7;
-
- MockAkkaJournal.addToJournal(5, entry2);
- // 2 entries are applied to state besides the 4 entries in snapshot
- MockAkkaJournal.addToJournal(6, new ApplyLogEntries(lastAppliedToState));
- MockAkkaJournal.addToJournal(7, entry3);
- MockAkkaJournal.addToJournal(8, entry4);
-
- // kill the actor
- followerActor.tell(PoisonPill.getInstance(), null);
-
- try {
- // give some time for actor to die
- Thread.sleep(200);
- } catch (InterruptedException e) {
- e.printStackTrace();
- }
-
- //reinstate the actor
- TestActorRef<MockRaftActor> ref = TestActorRef.create(getSystem(),
- MockRaftActor.props(persistenceId, Collections.EMPTY_MAP));
-
- try {
- //give some time for snapshot offer to get called.
- Thread.sleep(200);
- } catch (InterruptedException e) {
- e.printStackTrace();
- }
-
- RaftActorContext context = ref.underlyingActor().getRaftActorContext();
- assertEquals(snapshotUnappliedEntries.size() + entries.size(), context.getReplicatedLog().size());
- assertEquals(lastIndex, context.getReplicatedLog().lastIndex());
- assertEquals(lastAppliedToState, context.getLastApplied());
- assertEquals(lastAppliedToState, context.getCommitIndex());
- assertTrue(ref.underlyingActor().isApplySnapshotCalled());
- assertEquals(6, ref.underlyingActor().getState().size());
- }
- };
+ String persistenceId = factory.generateActorId("leader-");
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setSnapshotBatchCount(5);
+
+ DataPersistenceProvider dataPersistenceProvider = new NonPersistentDataProvider();
+
+ Map<String, String> peerAddresses = ImmutableMap.<String, String>builder().put("member1", "address").build();
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
+
+ MockRaftActor leaderActor = mockActorRef.underlyingActor();
+ leaderActor.getRaftActorContext().setCommitIndex(3);
+ leaderActor.getRaftActorContext().setLastApplied(3);
+ leaderActor.getRaftActorContext().getTermInformation().update(1, persistenceId);
+ leaderActor.getReplicatedLog().setSnapshotIndex(3);
+
+ leaderActor.waitForInitializeBehaviorComplete();
+ Leader leader = new Leader(leaderActor.getRaftActorContext());
+ leaderActor.setCurrentBehavior(leader);
+ leader.setReplicatedToAllIndex(3);
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ // Persist another entry (this will cause a CaptureSnapshot to be triggered
+ leaderActor.persistData(mockActorRef, new MockIdentifier("x"),
+ new MockRaftActorContext.MockPayload("duh"));
+
+ // Now send a CaptureSnapshotReply
+ mockActorRef.tell(new CaptureSnapshotReply(fromObject("foo").toByteArray()), mockActorRef);
+
+ // Trimming log in this scenario is a no-op
+ assertEquals(3, leaderActor.getReplicatedLog().getSnapshotIndex());
+ assertTrue(leaderActor.getRaftActorContext().getSnapshotManager().isCapturing());
+ assertEquals(3, leader.getReplicatedToAllIndex());
+
}};
+ }
+
+ @Test
+ public void testSwitchBehavior(){
+ String persistenceId = factory.generateActorId("leader-");
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setCustomRaftPolicyImplementationClass("org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy");
+ config.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setIsolatedLeaderCheckInterval(new FiniteDuration(1, TimeUnit.DAYS));
+ config.setSnapshotBatchCount(5);
+
+ DataPersistenceProvider dataPersistenceProvider = new NonPersistentDataProvider();
+
+ Map<String, String> peerAddresses = ImmutableMap.<String, String>builder().build();
+
+ TestActorRef<MockRaftActor> mockActorRef = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, config, dataPersistenceProvider), persistenceId);
+
+ MockRaftActor leaderActor = mockActorRef.underlyingActor();
+
+ leaderActor.waitForRecoveryComplete();
+
+ leaderActor.handleCommand(new SwitchBehavior(RaftState.Follower, 100));
+
+ assertEquals(100, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
+ assertEquals(RaftState.Follower, leaderActor.getCurrentBehavior().state());
+
+ leaderActor.handleCommand(new SwitchBehavior(RaftState.Leader, 110));
+ assertEquals(110, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ leaderActor.handleCommand(new SwitchBehavior(RaftState.Candidate, 125));
+
+ assertEquals(110, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
+
+ leaderActor.handleCommand(new SwitchBehavior(RaftState.IsolatedLeader, 125));
+
+ assertEquals(110, leaderActor.getRaftActorContext().getTermInformation().getCurrentTerm());
+ assertEquals(RaftState.Leader, leaderActor.getCurrentBehavior().state());
}
- private ByteString fromObject(Object snapshot) throws Exception {
+ public static ByteString fromObject(Object snapshot) throws Exception {
ByteArrayOutputStream b = null;
ObjectOutputStream o = null;
try {
}
}
}
+
+ @Test
+ public void testUpdateConfigParam() throws Exception {
+ DefaultConfigParamsImpl emptyConfig = new DefaultConfigParamsImpl();
+ String persistenceId = factory.generateActorId("follower-");
+ ImmutableMap<String, String> peerAddresses =
+ ImmutableMap.<String, String>builder().put("member1", "address").build();
+ DataPersistenceProvider dataPersistenceProvider = mock(DataPersistenceProvider.class);
+
+ TestActorRef<MockRaftActor> actorRef = factory.createTestActor(
+ MockRaftActor.props(persistenceId, peerAddresses, emptyConfig, dataPersistenceProvider), persistenceId);
+ MockRaftActor mockRaftActor = actorRef.underlyingActor();
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ RaftActorBehavior behavior = mockRaftActor.getCurrentBehavior();
+ mockRaftActor.updateConfigParams(emptyConfig);
+ assertSame("Same Behavior", behavior, mockRaftActor.getCurrentBehavior());
+ assertEquals("Behavior State", RaftState.Follower,
+ mockRaftActor.getCurrentBehavior().state());
+
+ DefaultConfigParamsImpl disableConfig = new DefaultConfigParamsImpl();
+ disableConfig.setCustomRaftPolicyImplementationClass(
+ "org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy");
+ mockRaftActor.updateConfigParams(disableConfig);
+ assertNotSame("Different Behavior", behavior, mockRaftActor.getCurrentBehavior());
+ assertEquals("Behavior State", RaftState.Follower,
+ mockRaftActor.getCurrentBehavior().state());
+
+ behavior = mockRaftActor.getCurrentBehavior();
+ mockRaftActor.updateConfigParams(disableConfig);
+ assertSame("Same Behavior", behavior, mockRaftActor.getCurrentBehavior());
+ assertEquals("Behavior State", RaftState.Follower,
+ mockRaftActor.getCurrentBehavior().state());
+
+ DefaultConfigParamsImpl defaultConfig = new DefaultConfigParamsImpl();
+ defaultConfig.setCustomRaftPolicyImplementationClass(
+ "org.opendaylight.controller.cluster.raft.policy.DefaultRaftPolicy");
+ mockRaftActor.updateConfigParams(defaultConfig);
+ assertNotSame("Different Behavior", behavior, mockRaftActor.getCurrentBehavior());
+ assertEquals("Behavior State", RaftState.Follower,
+ mockRaftActor.getCurrentBehavior().state());
+
+ behavior = mockRaftActor.getCurrentBehavior();
+ mockRaftActor.updateConfigParams(defaultConfig);
+ assertSame("Same Behavior", behavior, mockRaftActor.getCurrentBehavior());
+ assertEquals("Behavior State", RaftState.Follower,
+ mockRaftActor.getCurrentBehavior().state());
+ }
+
+ @Test
+ public void testGetSnapshot() throws Exception {
+ TEST_LOG.info("testGetSnapshot starting");
+
+ JavaTestKit kit = new JavaTestKit(getSystem());
+
+ String persistenceId = factory.generateActorId("test-actor-");
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
+
+ long term = 3;
+ long seqN = 1;
+ InMemoryJournal.addEntry(persistenceId, seqN++, new UpdateElectionTerm(term, "member-1"));
+ InMemoryJournal.addEntry(persistenceId, seqN++, new MockRaftActorContext.MockReplicatedLogEntry(term, 0,
+ new MockRaftActorContext.MockPayload("A")));
+ InMemoryJournal.addEntry(persistenceId, seqN++, new MockRaftActorContext.MockReplicatedLogEntry(term, 1,
+ new MockRaftActorContext.MockPayload("B")));
+ InMemoryJournal.addEntry(persistenceId, seqN++, new ApplyJournalEntries(1));
+ InMemoryJournal.addEntry(persistenceId, seqN++, new MockRaftActorContext.MockReplicatedLogEntry(term, 2,
+ new MockRaftActorContext.MockPayload("C")));
+
+ TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.props(persistenceId,
+ ImmutableMap.<String, String>builder().put("member1", "address").build(), config).
+ withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+ MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
+
+ mockRaftActor.waitForRecoveryComplete();
+
+ mockRaftActor.snapshotCohortDelegate = mock(RaftActorSnapshotCohort.class);
+
+ raftActorRef.tell(GetSnapshot.INSTANCE, kit.getRef());
+
+ ArgumentCaptor<ActorRef> replyActor = ArgumentCaptor.forClass(ActorRef.class);
+ verify(mockRaftActor.snapshotCohortDelegate, timeout(5000)).createSnapshot(replyActor.capture());
+
+ byte[] stateSnapshot = new byte[]{1,2,3};
+ replyActor.getValue().tell(new CaptureSnapshotReply(stateSnapshot), ActorRef.noSender());
+
+ GetSnapshotReply reply = kit.expectMsgClass(GetSnapshotReply.class);
+
+ assertEquals("getId", persistenceId, reply.getId());
+ Snapshot replySnapshot = SerializationUtils.deserialize(reply.getSnapshot());
+ assertEquals("getElectionTerm", term, replySnapshot.getElectionTerm());
+ assertEquals("getElectionVotedFor", "member-1", replySnapshot.getElectionVotedFor());
+ assertEquals("getLastAppliedIndex", 1L, replySnapshot.getLastAppliedIndex());
+ assertEquals("getLastAppliedTerm", term, replySnapshot.getLastAppliedTerm());
+ assertEquals("getLastIndex", 2L, replySnapshot.getLastIndex());
+ assertEquals("getLastTerm", term, replySnapshot.getLastTerm());
+ assertArrayEquals("getState", stateSnapshot, replySnapshot.getState());
+ assertEquals("getUnAppliedEntries size", 1, replySnapshot.getUnAppliedEntries().size());
+ assertEquals("UnApplied entry index ", 2L, replySnapshot.getUnAppliedEntries().get(0).getIndex());
+
+ // Test with timeout
+
+ mockRaftActor.getSnapshotMessageSupport().setSnapshotReplyActorTimeout(Duration.create(200, TimeUnit.MILLISECONDS));
+ reset(mockRaftActor.snapshotCohortDelegate);
+
+ raftActorRef.tell(GetSnapshot.INSTANCE, kit.getRef());
+ Failure failure = kit.expectMsgClass(akka.actor.Status.Failure.class);
+ assertEquals("Failure cause type", TimeoutException.class, failure.cause().getClass());
+
+ mockRaftActor.getSnapshotMessageSupport().setSnapshotReplyActorTimeout(Duration.create(30, TimeUnit.SECONDS));
+
+ // Test with persistence disabled.
+
+ mockRaftActor.setPersistence(false);
+ reset(mockRaftActor.snapshotCohortDelegate);
+
+ raftActorRef.tell(GetSnapshot.INSTANCE, kit.getRef());
+ reply = kit.expectMsgClass(GetSnapshotReply.class);
+ verify(mockRaftActor.snapshotCohortDelegate, never()).createSnapshot(any(ActorRef.class));
+
+ assertEquals("getId", persistenceId, reply.getId());
+ replySnapshot = SerializationUtils.deserialize(reply.getSnapshot());
+ assertEquals("getElectionTerm", term, replySnapshot.getElectionTerm());
+ assertEquals("getElectionVotedFor", "member-1", replySnapshot.getElectionVotedFor());
+ assertEquals("getLastAppliedIndex", -1L, replySnapshot.getLastAppliedIndex());
+ assertEquals("getLastAppliedTerm", -1L, replySnapshot.getLastAppliedTerm());
+ assertEquals("getLastIndex", -1L, replySnapshot.getLastIndex());
+ assertEquals("getLastTerm", -1L, replySnapshot.getLastTerm());
+ assertEquals("getState length", 0, replySnapshot.getState().length);
+ assertEquals("getUnAppliedEntries size", 0, replySnapshot.getUnAppliedEntries().size());
+
+ TEST_LOG.info("testGetSnapshot ending");
+ }
+
+ @Test
+ public void testRestoreFromSnapshot() throws Exception {
+ TEST_LOG.info("testRestoreFromSnapshot starting");
+
+ String persistenceId = factory.generateActorId("test-actor-");
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
+
+ List<ReplicatedLogEntry> snapshotUnappliedEntries = new ArrayList<>();
+ snapshotUnappliedEntries.add(new MockRaftActorContext.MockReplicatedLogEntry(1, 4,
+ new MockRaftActorContext.MockPayload("E")));
+
+ int snapshotLastApplied = 3;
+ int snapshotLastIndex = 4;
+
+ List<MockPayload> state = Arrays.asList(
+ new MockRaftActorContext.MockPayload("A"),
+ new MockRaftActorContext.MockPayload("B"),
+ new MockRaftActorContext.MockPayload("C"),
+ new MockRaftActorContext.MockPayload("D"));
+ ByteString stateBytes = fromObject(state);
+
+ Snapshot snapshot = Snapshot.create(stateBytes.toByteArray(), snapshotUnappliedEntries,
+ snapshotLastIndex, 1, snapshotLastApplied, 1, 1, "member-1");
+
+ InMemorySnapshotStore.addSnapshotSavedLatch(persistenceId);
+
+ TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).restoreFromSnapshot(SerializationUtils.serialize(snapshot)).props().
+ withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+ MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
+
+ mockRaftActor.waitForRecoveryComplete();
+
+ Snapshot savedSnapshot = InMemorySnapshotStore.waitForSavedSnapshot(persistenceId, Snapshot.class);
+ assertEquals("getElectionTerm", snapshot.getElectionTerm(), savedSnapshot.getElectionTerm());
+ assertEquals("getElectionVotedFor", snapshot.getElectionVotedFor(), savedSnapshot.getElectionVotedFor());
+ assertEquals("getLastAppliedIndex", snapshot.getLastAppliedIndex(), savedSnapshot.getLastAppliedIndex());
+ assertEquals("getLastAppliedTerm", snapshot.getLastAppliedTerm(), savedSnapshot.getLastAppliedTerm());
+ assertEquals("getLastIndex", snapshot.getLastIndex(), savedSnapshot.getLastIndex());
+ assertEquals("getLastTerm", snapshot.getLastTerm(), savedSnapshot.getLastTerm());
+ assertArrayEquals("getState", snapshot.getState(), savedSnapshot.getState());
+ assertEquals("getUnAppliedEntries", snapshot.getUnAppliedEntries(), savedSnapshot.getUnAppliedEntries());
+
+ verify(mockRaftActor.snapshotCohortDelegate, timeout(5000)).applySnapshot(any(byte[].class));
+
+ RaftActorContext context = mockRaftActor.getRaftActorContext();
+ assertEquals("Journal log size", 1, context.getReplicatedLog().size());
+ assertEquals("Last index", snapshotLastIndex, context.getReplicatedLog().lastIndex());
+ assertEquals("Last applied", snapshotLastApplied, context.getLastApplied());
+ assertEquals("Commit index", snapshotLastApplied, context.getCommitIndex());
+ assertEquals("Recovered state", state, mockRaftActor.getState());
+ assertEquals("Current term", 1L, context.getTermInformation().getCurrentTerm());
+ assertEquals("Voted for", "member-1", context.getTermInformation().getVotedFor());
+
+ // Test with data persistence disabled
+
+ snapshot = Snapshot.create(new byte[0], Collections.<ReplicatedLogEntry>emptyList(),
+ -1, -1, -1, -1, 5, "member-1");
+
+ persistenceId = factory.generateActorId("test-actor-");
+
+ raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).restoreFromSnapshot(SerializationUtils.serialize(snapshot)).
+ persistent(Optional.of(Boolean.FALSE)).props().
+ withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+ mockRaftActor = raftActorRef.underlyingActor();
+
+ mockRaftActor.waitForRecoveryComplete();
+ assertEquals("snapshot committed", true,
+ Uninterruptibles.awaitUninterruptibly(mockRaftActor.snapshotCommitted, 5, TimeUnit.SECONDS));
+
+ context = mockRaftActor.getRaftActorContext();
+ assertEquals("Current term", 5L, context.getTermInformation().getCurrentTerm());
+ assertEquals("Voted for", "member-1", context.getTermInformation().getVotedFor());
+
+ TEST_LOG.info("testRestoreFromSnapshot ending");
+ }
+
+ @Test
+ public void testRestoreFromSnapshotWithRecoveredData() throws Exception {
+ TEST_LOG.info("testRestoreFromSnapshotWithRecoveredData starting");
+
+ String persistenceId = factory.generateActorId("test-actor-");
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
+
+ List<MockPayload> state = Arrays.asList(new MockRaftActorContext.MockPayload("A"));
+ Snapshot snapshot = Snapshot.create(fromObject(state).toByteArray(), Arrays.<ReplicatedLogEntry>asList(),
+ 5, 2, 5, 2, 2, "member-1");
+
+ InMemoryJournal.addEntry(persistenceId, 1, new MockRaftActorContext.MockReplicatedLogEntry(1, 0,
+ new MockRaftActorContext.MockPayload("B")));
+
+ TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).restoreFromSnapshot(SerializationUtils.serialize(snapshot)).props().
+ withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+ MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
+
+ mockRaftActor.waitForRecoveryComplete();
+
+ Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
+ verify(mockRaftActor.snapshotCohortDelegate, never()).applySnapshot(any(byte[].class));
+
+ RaftActorContext context = mockRaftActor.getRaftActorContext();
+ assertEquals("Journal log size", 1, context.getReplicatedLog().size());
+ assertEquals("Last index", 0, context.getReplicatedLog().lastIndex());
+ assertEquals("Last applied", -1, context.getLastApplied());
+ assertEquals("Commit index", -1, context.getCommitIndex());
+ assertEquals("Current term", 0, context.getTermInformation().getCurrentTerm());
+ assertEquals("Voted for", null, context.getTermInformation().getVotedFor());
+
+ TEST_LOG.info("testRestoreFromSnapshotWithRecoveredData ending");
+ }
+
+ @Test
+ public void testNonVotingOnRecovery() throws Exception {
+ TEST_LOG.info("testNonVotingOnRecovery starting");
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setElectionTimeoutFactor(1);
+ config.setHeartBeatInterval(FiniteDuration.create(1, TimeUnit.MILLISECONDS));
+
+ String persistenceId = factory.generateActorId("test-actor-");
+ InMemoryJournal.addEntry(persistenceId, 1, new MockRaftActorContext.MockReplicatedLogEntry(1, 0,
+ new ServerConfigurationPayload(Arrays.asList(new ServerInfo(persistenceId, false)))));
+
+ TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).props().withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+ MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
+
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ // Sleep a bit and verify it didn't get an election timeout and schedule an election.
+
+ Uninterruptibles.sleepUninterruptibly(400, TimeUnit.MILLISECONDS);
+ assertEquals("getRaftState", RaftState.Follower, mockRaftActor.getRaftState());
+
+ TEST_LOG.info("testNonVotingOnRecovery ending");
+ }
+
+ @Test
+ public void testLeaderTransitioning() throws Exception {
+ TEST_LOG.info("testLeaderTransitioning starting");
+
+ TestActorRef<MessageCollectorActor> notifierActor = factory.createTestActor(
+ Props.create(MessageCollectorActor.class));
+
+ DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
+ config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
+
+ String persistenceId = factory.generateActorId("test-actor-");
+
+ TestActorRef<MockRaftActor> raftActorRef = factory.createTestActor(MockRaftActor.builder().id(persistenceId).
+ config(config).roleChangeNotifier(notifierActor).props().withDispatcher(Dispatchers.DefaultDispatcherId()), persistenceId);
+ MockRaftActor mockRaftActor = raftActorRef.underlyingActor();
+
+ mockRaftActor.waitForInitializeBehaviorComplete();
+
+ raftActorRef.tell(new AppendEntries(1L, "leader", 0L, 1L, Collections.<ReplicatedLogEntry>emptyList(),
+ 0L, -1L, (short)1), ActorRef.noSender());
+ LeaderStateChanged leaderStateChange = MessageCollectorActor.expectFirstMatching(
+ notifierActor, LeaderStateChanged.class);
+ assertEquals("getLeaderId", "leader", leaderStateChange.getLeaderId());
+
+ MessageCollectorActor.clearMessages(notifierActor);
+
+ raftActorRef.tell(LeaderTransitioning.INSTANCE, ActorRef.noSender());
+
+ leaderStateChange = MessageCollectorActor.expectFirstMatching(notifierActor, LeaderStateChanged.class);
+ assertEquals("getMemberId", persistenceId, leaderStateChange.getMemberId());
+ assertEquals("getLeaderId", null, leaderStateChange.getLeaderId());
+
+ TEST_LOG.info("testLeaderTransitioning ending");
+ }
}
Code Review / controller.git / blobdiff