Examples with Request org.neo4j.causalclustering.core.consensus.RaftMessages.NewEntry.Request used on opensource projects

Example 1 with Request

use of org.neo4j.causalclustering.core.consensus.RaftMessages.NewEntry.Request in project neo4j by neo4j.

the class CatchUpTest method newMemberWithNoLogShouldCatchUpFromPeers.

@Test
public void newMemberWithNoLogShouldCatchUpFromPeers() throws Throwable {
    DirectNetworking net = new DirectNetworking();
    // given
    final MemberId leaderId = member(0);
    final MemberId sleepyId = member(2);
    final MemberId[] awakeMembers = { leaderId, member(1) };
    final MemberId[] allMembers = { leaderId, member(1), sleepyId };
    RaftTestFixture fixture = new RaftTestFixture(net, 3, allMembers);
    fixture.bootstrap(allMembers);
    fixture.members().withId(leaderId).raftInstance().installCoreState(new RaftCoreState(new MembershipEntry(0, new HashSet<>(Arrays.asList(allMembers)))));
    fixture.members().withId(leaderId).timeoutService().invokeTimeout(RaftMachine.Timeouts.ELECTION);
    net.processMessages();
    final MemberId leader = fixture.members().withId(leaderId).member();
    net.disconnect(sleepyId);
    // when
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(10)));
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(20)));
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(30)));
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(40)));
    net.processMessages();
    // then
    for (MemberId awakeMember : awakeMembers) {
        assertThat(integerValues(fixture.members().withId(awakeMember).raftLog()), hasItems(10, 20, 30, 40));
    }
    assertThat(integerValues(fixture.members().withId(sleepyId).raftLog()), empty());
    // when
    net.reconnect(sleepyId);
    // TODO: This needs an injectable/controllable timeout service for the log shipper.
    Thread.sleep(500);
    net.processMessages();
    // then
    assertThat(integerValues(fixture.members().withId(sleepyId).raftLog()), hasItems(10, 20, 30, 40));
}

Example 2 with Request

use of org.neo4j.causalclustering.core.consensus.RaftMessages.NewEntry.Request in project neo4j by neo4j.

the class CatchUpTest method happyClusterPropagatesUpdates.

@Test
public void happyClusterPropagatesUpdates() throws Throwable {
    DirectNetworking net = new DirectNetworking();
    // given
    final MemberId leader = member(0);
    final MemberId[] allMembers = { leader, member(1), member(2) };
    final RaftTestFixture fixture = new RaftTestFixture(net, 3, allMembers);
    fixture.bootstrap(allMembers);
    final MemberId leaderMember = fixture.members().withId(leader).member();
    // when
    fixture.members().withId(leader).timeoutService().invokeTimeout(RaftMachine.Timeouts.ELECTION);
    net.processMessages();
    fixture.members().withId(leader).raftInstance().handle(new Request(leaderMember, valueOf(42)));
    net.processMessages();
    // then
    for (MemberId aMember : allMembers) {
        assertThat(integerValues(fixture.members().withId(aMember).raftLog()), hasItems(42));
    }
}