Examples with RaftState org.neo4j.causalclustering.core.consensus.state.RaftState used on opensource projects

Example 21 with RaftState

use of org.neo4j.causalclustering.core.consensus.state.RaftState in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldAcceptContinuousEntries.

@Test
public void shouldAcceptContinuousEntries() throws Exception {
    InMemoryRaftLog raftLog = new InMemoryRaftLog();
    RaftState state = raftState().myself(myself).entryLog(raftLog).build();
    long leaderTerm = state.term() + leaderTermDifference;
    raftLog.append(new RaftLogEntry(leaderTerm, content()));
    // when
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(raftLog.appendIndex()).prevLogTerm(leaderTerm).logEntry(new RaftLogEntry(leaderTerm, content())).build(), state, log());
    // then
    assertTrue(((Response) messageFor(outcome, leader)).success());
}

Example 22 with RaftState

use of org.neo4j.causalclustering.core.consensus.state.RaftState in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldTruncateOnReceiptOfConflictingEntry.

@Test
public void shouldTruncateOnReceiptOfConflictingEntry() throws Exception {
    // given
    InMemoryRaftLog raftLog = new InMemoryRaftLog();
    RaftState state = raftState().myself(myself).term(5).entryLog(raftLog).build();
    long leaderTerm = state.term() + leaderTermDifference;
    raftLog.append(new RaftLogEntry(state.term() - 1, content()));
    raftLog.append(new RaftLogEntry(state.term() - 1, content()));
    // when
    long previousIndex = raftLog.appendIndex() - 1;
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(previousIndex).prevLogTerm(raftLog.readEntryTerm(previousIndex)).logEntry(new RaftLogEntry(leaderTerm, content())).build(), state, log());
    // then
    assertTrue(((Response) messageFor(outcome, leader)).success());
    assertThat(outcome.getLogCommands(), hasItem(new TruncateLogCommand(1)));
}

Example 23 with RaftState

use of org.neo4j.causalclustering.core.consensus.state.RaftState in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldAcceptInitialEntryAfterBootstrap.

@Test
public void shouldAcceptInitialEntryAfterBootstrap() throws Exception {
    RaftLog raftLog = bootstrappedLog();
    RaftState state = raftState().entryLog(raftLog).myself(myself).build();
    long leaderTerm = state.term() + leaderTermDifference;
    RaftLogEntry logEntry = new RaftLogEntry(leaderTerm, content());
    // when
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(0).prevLogTerm(0).logEntry(logEntry).build(), state, log());
    // then
    assertTrue(((Response) messageFor(outcome, leader)).success());
    assertThat(outcome.getLogCommands(), hasItem(new BatchAppendLogEntries(1, 0, new RaftLogEntry[] { logEntry })));
}

Example 24 with RaftState

use of org.neo4j.causalclustering.core.consensus.state.RaftState in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldNotCommitAheadOfMatchingHistory.

@Test
public void shouldNotCommitAheadOfMatchingHistory() throws Exception {
    // given
    InMemoryRaftLog raftLog = new InMemoryRaftLog();
    RaftState state = raftState().entryLog(raftLog).myself(myself).build();
    long leaderTerm = state.term() + leaderTermDifference;
    RaftLogEntry previouslyAppendedEntry = new RaftLogEntry(leaderTerm, content());
    raftLog.append(previouslyAppendedEntry);
    // when
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(raftLog.appendIndex() + 1).prevLogTerm(leaderTerm).leaderCommit(0).build(), state, log());
    // then
    assertFalse(((Response) messageFor(outcome, leader)).success());
    assertThat(outcome.getLogCommands(), empty());
}

Example 25 with RaftState

use of org.neo4j.causalclustering.core.consensus.state.RaftState in project neo4j by neo4j.

the class AppendEntriesRequestTest method shouldAppendNewEntryAndCommitPreviouslyAppendedEntry.

@Test
public void shouldAppendNewEntryAndCommitPreviouslyAppendedEntry() throws Exception {
    // given
    InMemoryRaftLog raftLog = new InMemoryRaftLog();
    RaftState state = raftState().entryLog(raftLog).myself(myself).build();
    long leaderTerm = state.term() + leaderTermDifference;
    RaftLogEntry previouslyAppendedEntry = new RaftLogEntry(leaderTerm, content());
    raftLog.append(previouslyAppendedEntry);
    RaftLogEntry newLogEntry = new RaftLogEntry(leaderTerm, content());
    // when
    Outcome outcome = role.handler.handle(appendEntriesRequest().from(leader).leaderTerm(leaderTerm).prevLogIndex(raftLog.appendIndex()).prevLogTerm(leaderTerm).logEntry(newLogEntry).leaderCommit(0).build(), state, log());
    // then
    assertTrue(((Response) messageFor(outcome, leader)).success());
    assertThat(outcome.getCommitIndex(), Matchers.equalTo(0L));
    assertThat(outcome.getLogCommands(), hasItem(new BatchAppendLogEntries(1, 0, new RaftLogEntry[] { newLogEntry })));
}