Examples with RaftLogCommand org.neo4j.causalclustering.core.consensus.outcome.RaftLogCommand used on opensource projects

Example 6 with RaftLogCommand

use of org.neo4j.causalclustering.core.consensus.outcome.RaftLogCommand in project neo4j by neo4j.

the class RaftStateTest method shouldUpdateCacheState.

@Test
public void shouldUpdateCacheState() throws Exception {
    //Test that updates applied to the raft state will be refelcted in the entry cache.
    //given
    InFlightMap<RaftLogEntry> cache = new InFlightMap<>();
    RaftState raftState = new RaftState(member(0), new InMemoryStateStorage<>(new TermState()), new FakeMembership(), new InMemoryRaftLog(), new InMemoryStateStorage<>(new VoteState()), cache, NullLogProvider.getInstance());
    List<RaftLogCommand> logCommands = new LinkedList<RaftLogCommand>() {

        {
            add(new AppendLogEntry(1, new RaftLogEntry(0L, valueOf(0))));
            add(new AppendLogEntry(2, new RaftLogEntry(0L, valueOf(1))));
            add(new AppendLogEntry(3, new RaftLogEntry(0L, valueOf(2))));
            add(new AppendLogEntry(4, new RaftLogEntry(0L, valueOf(4))));
            add(new TruncateLogCommand(3));
            add(new AppendLogEntry(3, new RaftLogEntry(0L, valueOf(5))));
        }
    };
    Outcome raftTestMemberOutcome = new Outcome(CANDIDATE, 0, null, -1, null, emptySet(), -1, initialFollowerStates(), true, logCommands, emptyOutgoingMessages(), emptySet(), -1, emptySet());
    //when
    raftState.update(raftTestMemberOutcome);
    //then
    assertNotNull(cache.get(1L));
    assertNotNull(cache.get(2L));
    assertNotNull(cache.get(3L));
    assertEquals(valueOf(5), cache.get(3L).content());
    assertNull(cache.get(4L));
}

Example 7 with RaftLogCommand

use of org.neo4j.causalclustering.core.consensus.outcome.RaftLogCommand in project neo4j by neo4j.

the class RaftState method update.

public void update(Outcome outcome) throws IOException {
    if (termState().update(outcome.getTerm())) {
        termStorage.persistStoreData(termState());
    }
    if (voteState().update(outcome.getVotedFor(), outcome.getTerm())) {
        voteStorage.persistStoreData(voteState());
    }
    logIfLeaderChanged(outcome.getLeader());
    leader = outcome.getLeader();
    leaderCommit = outcome.getLeaderCommit();
    votesForMe = outcome.getVotesForMe();
    heartbeatResponses = outcome.getHeartbeatResponses();
    lastLogIndexBeforeWeBecameLeader = outcome.getLastLogIndexBeforeWeBecameLeader();
    followerStates = outcome.getFollowerStates();
    for (RaftLogCommand logCommand : outcome.getLogCommands()) {
        logCommand.applyTo(entryLog, log);
        logCommand.applyTo(inFlightMap, log);
    }
    commitIndex = outcome.getCommitIndex();
}