Examples with RaftActorSnapshotCohort org.opendaylight.controller.cluster.raft.RaftActorSnapshotCohort used on opensource projects

Example 1 with RaftActorSnapshotCohort

use of org.opendaylight.controller.cluster.raft.RaftActorSnapshotCohort in project controller by opendaylight.

the class FollowerTest method testCaptureSnapshotOnAppendEntriesWithUnapplied.

@Test
public void testCaptureSnapshotOnAppendEntriesWithUnapplied() {
    String id = "testCaptureSnapshotOnAppendEntriesWithUnapplied";
    logStart(id);
    InMemoryJournal.addEntry(id, 1, new UpdateElectionTerm(1, null));
    DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
    config.setSnapshotBatchCount(1);
    config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
    final AtomicReference<MockRaftActor> followerRaftActor = new AtomicReference<>();
    RaftActorSnapshotCohort snapshotCohort = newRaftActorSnapshotCohort(followerRaftActor);
    Builder builder = MockRaftActor.builder().persistent(Optional.of(true)).id(id).peerAddresses(ImmutableMap.of("leader", "")).config(config).snapshotCohort(snapshotCohort);
    TestActorRef<MockRaftActor> followerActorRef = actorFactory.createTestActor(builder.props().withDispatcher(Dispatchers.DefaultDispatcherId()), id);
    followerRaftActor.set(followerActorRef.underlyingActor());
    followerRaftActor.get().waitForInitializeBehaviorComplete();
    InMemorySnapshotStore.addSnapshotSavedLatch(id);
    InMemoryJournal.addDeleteMessagesCompleteLatch(id);
    InMemoryJournal.addWriteMessagesCompleteLatch(id, 1, ApplyJournalEntries.class);
    List<ReplicatedLogEntry> entries = Arrays.asList(newReplicatedLogEntry(1, 0, "one"), newReplicatedLogEntry(1, 1, "two"), newReplicatedLogEntry(1, 2, "three"));
    AppendEntries appendEntries = new AppendEntries(1, "leader", -1, -1, entries, 0, -1, (short) 0);
    followerActorRef.tell(appendEntries, leaderActor);
    AppendEntriesReply reply = MessageCollectorActor.expectFirstMatching(leaderActor, AppendEntriesReply.class);
    assertEquals("isSuccess", true, reply.isSuccess());
    final Snapshot snapshot = InMemorySnapshotStore.waitForSavedSnapshot(id, Snapshot.class);
    InMemoryJournal.waitForDeleteMessagesComplete(id);
    InMemoryJournal.waitForWriteMessagesComplete(id);
    // We expect the ApplyJournalEntries for index 0 to remain in the persisted log b/c it's still queued for
    // persistence by the time we initiate capture so the last persisted journal sequence number doesn't include it.
    // This is OK - on recovery it will be a no-op since index 0 has already been applied.
    List<Object> journalEntries = InMemoryJournal.get(id, Object.class);
    assertEquals("Persisted journal entries size: " + journalEntries, 1, journalEntries.size());
    assertEquals("Persisted journal entry type", ApplyJournalEntries.class, journalEntries.get(0).getClass());
    assertEquals("ApplyJournalEntries index", 0, ((ApplyJournalEntries) journalEntries.get(0)).getToIndex());
    assertEquals("Snapshot unapplied size", 2, snapshot.getUnAppliedEntries().size());
    assertEquals("Snapshot unapplied entry index", 1, snapshot.getUnAppliedEntries().get(0).getIndex());
    assertEquals("Snapshot unapplied entry index", 2, snapshot.getUnAppliedEntries().get(1).getIndex());
    assertEquals("Snapshot getLastAppliedTerm", 1, snapshot.getLastAppliedTerm());
    assertEquals("Snapshot getLastAppliedIndex", 0, snapshot.getLastAppliedIndex());
    assertEquals("Snapshot getLastTerm", 1, snapshot.getLastTerm());
    assertEquals("Snapshot getLastIndex", 2, snapshot.getLastIndex());
    assertEquals("Snapshot state", ImmutableList.of(entries.get(0).getData()), MockRaftActor.fromState(snapshot.getState()));
}

Example 2 with RaftActorSnapshotCohort

use of org.opendaylight.controller.cluster.raft.RaftActorSnapshotCohort in project controller by opendaylight.

the class FollowerTest method testCaptureSnapshotOnMiddleEntryInAppendEntries.

@Test
public void testCaptureSnapshotOnMiddleEntryInAppendEntries() {
    String id = "testCaptureSnapshotOnMiddleEntryInAppendEntries";
    logStart(id);
    InMemoryJournal.addEntry(id, 1, new UpdateElectionTerm(1, null));
    DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
    config.setSnapshotBatchCount(2);
    config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
    final AtomicReference<MockRaftActor> followerRaftActor = new AtomicReference<>();
    RaftActorSnapshotCohort snapshotCohort = newRaftActorSnapshotCohort(followerRaftActor);
    Builder builder = MockRaftActor.builder().persistent(Optional.of(true)).id(id).peerAddresses(ImmutableMap.of("leader", "")).config(config).snapshotCohort(snapshotCohort);
    TestActorRef<MockRaftActor> followerActorRef = actorFactory.createTestActor(builder.props().withDispatcher(Dispatchers.DefaultDispatcherId()), id);
    followerRaftActor.set(followerActorRef.underlyingActor());
    followerRaftActor.get().waitForInitializeBehaviorComplete();
    InMemorySnapshotStore.addSnapshotSavedLatch(id);
    InMemoryJournal.addDeleteMessagesCompleteLatch(id);
    InMemoryJournal.addWriteMessagesCompleteLatch(id, 1, ApplyJournalEntries.class);
    List<ReplicatedLogEntry> entries = Arrays.asList(newReplicatedLogEntry(1, 0, "one"), newReplicatedLogEntry(1, 1, "two"), newReplicatedLogEntry(1, 2, "three"));
    AppendEntries appendEntries = new AppendEntries(1, "leader", -1, -1, entries, 2, -1, (short) 0);
    followerActorRef.tell(appendEntries, leaderActor);
    AppendEntriesReply reply = MessageCollectorActor.expectFirstMatching(leaderActor, AppendEntriesReply.class);
    assertEquals("isSuccess", true, reply.isSuccess());
    final Snapshot snapshot = InMemorySnapshotStore.waitForSavedSnapshot(id, Snapshot.class);
    InMemoryJournal.waitForDeleteMessagesComplete(id);
    InMemoryJournal.waitForWriteMessagesComplete(id);
    // We expect the ApplyJournalEntries for index 2 to remain in the persisted log b/c it's still queued for
    // persistence by the time we initiate capture so the last persisted journal sequence number doesn't include it.
    // This is OK - on recovery it will be a no-op since index 2 has already been applied.
    List<Object> journalEntries = InMemoryJournal.get(id, Object.class);
    assertEquals("Persisted journal entries size: " + journalEntries, 1, journalEntries.size());
    assertEquals("Persisted journal entry type", ApplyJournalEntries.class, journalEntries.get(0).getClass());
    assertEquals("ApplyJournalEntries index", 2, ((ApplyJournalEntries) journalEntries.get(0)).getToIndex());
    assertEquals("Snapshot unapplied size", 0, snapshot.getUnAppliedEntries().size());
    assertEquals("Snapshot getLastAppliedTerm", 1, snapshot.getLastAppliedTerm());
    assertEquals("Snapshot getLastAppliedIndex", 2, snapshot.getLastAppliedIndex());
    assertEquals("Snapshot getLastTerm", 1, snapshot.getLastTerm());
    assertEquals("Snapshot getLastIndex", 2, snapshot.getLastIndex());
    assertEquals("Snapshot state", ImmutableList.of(entries.get(0).getData(), entries.get(1).getData(), entries.get(2).getData()), MockRaftActor.fromState(snapshot.getState()));
    assertEquals("Journal size", 0, followerRaftActor.get().getReplicatedLog().size());
    assertEquals("Snapshot index", 2, followerRaftActor.get().getReplicatedLog().getSnapshotIndex());
    // Reinstate the actor from persistence
    actorFactory.killActor(followerActorRef, new TestKit(getSystem()));
    followerActorRef = actorFactory.createTestActor(builder.props().withDispatcher(Dispatchers.DefaultDispatcherId()), id);
    followerRaftActor.set(followerActorRef.underlyingActor());
    followerRaftActor.get().waitForInitializeBehaviorComplete();
    assertEquals("Journal size", 0, followerRaftActor.get().getReplicatedLog().size());
    assertEquals("Last index", 2, followerRaftActor.get().getReplicatedLog().lastIndex());
    assertEquals("Last applied index", 2, followerRaftActor.get().getRaftActorContext().getLastApplied());
    assertEquals("Commit index", 2, followerRaftActor.get().getRaftActorContext().getCommitIndex());
    assertEquals("State", ImmutableList.of(entries.get(0).getData(), entries.get(1).getData(), entries.get(2).getData()), followerRaftActor.get().getState());
}

Example 3 with RaftActorSnapshotCohort

use of org.opendaylight.controller.cluster.raft.RaftActorSnapshotCohort in project controller by opendaylight.

the class FollowerTest method testCaptureSnapshotOnLastEntryInAppendEntries.

@Test
public void testCaptureSnapshotOnLastEntryInAppendEntries() {
    String id = "testCaptureSnapshotOnLastEntryInAppendEntries";
    logStart(id);
    InMemoryJournal.addEntry(id, 1, new UpdateElectionTerm(1, null));
    DefaultConfigParamsImpl config = new DefaultConfigParamsImpl();
    config.setSnapshotBatchCount(2);
    config.setCustomRaftPolicyImplementationClass(DisableElectionsRaftPolicy.class.getName());
    final AtomicReference<MockRaftActor> followerRaftActor = new AtomicReference<>();
    RaftActorSnapshotCohort snapshotCohort = newRaftActorSnapshotCohort(followerRaftActor);
    Builder builder = MockRaftActor.builder().persistent(Optional.of(true)).id(id).peerAddresses(ImmutableMap.of("leader", "")).config(config).snapshotCohort(snapshotCohort);
    TestActorRef<MockRaftActor> followerActorRef = actorFactory.createTestActor(builder.props().withDispatcher(Dispatchers.DefaultDispatcherId()), id);
    followerRaftActor.set(followerActorRef.underlyingActor());
    followerRaftActor.get().waitForInitializeBehaviorComplete();
    InMemorySnapshotStore.addSnapshotSavedLatch(id);
    InMemoryJournal.addDeleteMessagesCompleteLatch(id);
    InMemoryJournal.addWriteMessagesCompleteLatch(id, 1, ApplyJournalEntries.class);
    List<ReplicatedLogEntry> entries = Arrays.asList(newReplicatedLogEntry(1, 0, "one"), newReplicatedLogEntry(1, 1, "two"));
    AppendEntries appendEntries = new AppendEntries(1, "leader", -1, -1, entries, 1, -1, (short) 0);
    followerActorRef.tell(appendEntries, leaderActor);
    AppendEntriesReply reply = MessageCollectorActor.expectFirstMatching(leaderActor, AppendEntriesReply.class);
    assertEquals("isSuccess", true, reply.isSuccess());
    final Snapshot snapshot = InMemorySnapshotStore.waitForSavedSnapshot(id, Snapshot.class);
    InMemoryJournal.waitForDeleteMessagesComplete(id);
    InMemoryJournal.waitForWriteMessagesComplete(id);
    // We expect the ApplyJournalEntries for index 1 to remain in the persisted log b/c it's still queued for
    // persistence by the time we initiate capture so the last persisted journal sequence number doesn't include it.
    // This is OK - on recovery it will be a no-op since index 1 has already been applied.
    List<Object> journalEntries = InMemoryJournal.get(id, Object.class);
    assertEquals("Persisted journal entries size: " + journalEntries, 1, journalEntries.size());
    assertEquals("Persisted journal entry type", ApplyJournalEntries.class, journalEntries.get(0).getClass());
    assertEquals("ApplyJournalEntries index", 1, ((ApplyJournalEntries) journalEntries.get(0)).getToIndex());
    assertEquals("Snapshot unapplied size", 0, snapshot.getUnAppliedEntries().size());
    assertEquals("Snapshot getLastAppliedTerm", 1, snapshot.getLastAppliedTerm());
    assertEquals("Snapshot getLastAppliedIndex", 1, snapshot.getLastAppliedIndex());
    assertEquals("Snapshot getLastTerm", 1, snapshot.getLastTerm());
    assertEquals("Snapshot getLastIndex", 1, snapshot.getLastIndex());
    assertEquals("Snapshot state", ImmutableList.of(entries.get(0).getData(), entries.get(1).getData()), MockRaftActor.fromState(snapshot.getState()));
}