Examples with MultiPaxosContext org.neo4j.cluster.protocol.atomicbroadcast.multipaxos.context.MultiPaxosContext used on opensource projects

Example 26 with MultiPaxosContext

use of org.neo4j.cluster.protocol.atomicbroadcast.multipaxos.context.MultiPaxosContext in project neo4j by neo4j.

the class LearnerContextTest method shouldTrackLastKnownUpToDateAliveInstance.

@Test
public void shouldTrackLastKnownUpToDateAliveInstance() throws Exception {
    // Given
    Config config = mock(Config.class);
    when(config.get(ClusterSettings.max_acceptors)).thenReturn(10);
    MultiPaxosContext mpCtx = new MultiPaxosContext(null, Iterables.<ElectionRole>empty(), mock(ClusterConfiguration.class), null, NullLogProvider.getInstance(), null, null, null, null, null, config);
    LearnerContext state = mpCtx.getLearnerContext();
    // When
    state.setLastKnownLearnedInstanceInCluster(1, new InstanceId(2));
    state.setLastKnownLearnedInstanceInCluster(1, new InstanceId(3));
    state.setLastKnownLearnedInstanceInCluster(0, new InstanceId(4));
    // Then
    assertThat(state.getLastKnownLearnedInstanceInCluster(), equalTo(1L));
    assertThat(state.getLastKnownAliveUpToDateInstance(), equalTo(new InstanceId(3)));
}

Example 27 with MultiPaxosContext

use of org.neo4j.cluster.protocol.atomicbroadcast.multipaxos.context.MultiPaxosContext in project neo4j by neo4j.

the class ClusterInstance method newClusterInstance.

public static ClusterInstance newClusterInstance(InstanceId id, URI uri, Monitors monitors, ClusterConfiguration configuration, int maxSurvivableFailedMembers, LogProvider logging) {
    MultiPaxosServerFactory factory = new MultiPaxosServerFactory(configuration, logging, monitors.newMonitor(StateMachines.Monitor.class));
    ClusterInstanceInput input = new ClusterInstanceInput();
    ClusterInstanceOutput output = new ClusterInstanceOutput(uri);
    ObjectStreamFactory objStreamFactory = new ObjectStreamFactory();
    ProverTimeouts timeouts = new ProverTimeouts(uri);
    InMemoryAcceptorInstanceStore acceptorInstances = new InMemoryAcceptorInstanceStore();
    Config config = mock(Config.class);
    when(config.get(ClusterSettings.max_acceptors)).thenReturn(maxSurvivableFailedMembers);
    DelayedDirectExecutor executor = new DelayedDirectExecutor(logging);
    final MultiPaxosContext context = new MultiPaxosContext(id, Iterables.<ElectionRole, ElectionRole>iterable(new ElectionRole(ClusterConfiguration.COORDINATOR)), new ClusterConfiguration(configuration.getName(), logging, configuration.getMemberURIs()), executor, logging, objStreamFactory, objStreamFactory, acceptorInstances, timeouts, new DefaultElectionCredentialsProvider(id, new StateVerifierLastTxIdGetter(), new MemberInfoProvider()), config);
    context.getClusterContext().setBoundAt(uri);
    SnapshotContext snapshotContext = new SnapshotContext(context.getClusterContext(), context.getLearnerContext());
    DelayedDirectExecutor taskExecutor = new DelayedDirectExecutor(logging);
    ProtocolServer ps = factory.newProtocolServer(id, input, output, DIRECT_EXECUTOR, taskExecutor, timeouts, context, snapshotContext);
    return new ClusterInstance(DIRECT_EXECUTOR, logging, factory, ps, context, acceptorInstances, timeouts, input, output, uri);
}