Examples with PaxosProposer com.palantir.paxos.PaxosProposer used on opensource projects

Example 1 with PaxosProposer

use of com.palantir.paxos.PaxosProposer in project atlasdb by palantir.

the class Leaders method createInstrumentedLocalServices.

public static LocalPaxosServices createInstrumentedLocalServices(LeaderConfig config, Supplier<LeaderRuntimeConfig> runtime, RemotePaxosServerSpec remotePaxosServerSpec, String userAgent) {
    UUID leaderUuid = UUID.randomUUID();
    PaxosLeadershipEventRecorder leadershipEventRecorder = PaxosLeadershipEventRecorder.create(AtlasDbMetrics.getMetricRegistry(), leaderUuid.toString());
    PaxosAcceptor ourAcceptor = AtlasDbMetrics.instrument(PaxosAcceptor.class, PaxosAcceptorImpl.newAcceptor(config.acceptorLogDir().getPath()));
    PaxosLearner ourLearner = AtlasDbMetrics.instrument(PaxosLearner.class, PaxosLearnerImpl.newLearner(config.learnerLogDir().getPath(), leadershipEventRecorder));
    Optional<SSLSocketFactory> sslSocketFactory = ServiceCreator.createSslSocketFactory(config.sslConfiguration());
    List<PaxosLearner> learners = createProxyAndLocalList(ourLearner, remotePaxosServerSpec.remoteLearnerUris(), sslSocketFactory, PaxosLearner.class, userAgent);
    List<PaxosAcceptor> acceptors = createProxyAndLocalList(ourAcceptor, remotePaxosServerSpec.remoteAcceptorUris(), sslSocketFactory, PaxosAcceptor.class, userAgent);
    Map<PingableLeader, HostAndPort> otherLeaders = generatePingables(remotePaxosServerSpec.remoteLeaderUris(), sslSocketFactory, userAgent);
    InstrumentedExecutorService proposerExecutorService = new InstrumentedExecutorService(PTExecutors.newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat("atlas-proposer-%d").setDaemon(true).build()), AtlasDbMetrics.getMetricRegistry(), MetricRegistry.name(PaxosProposer.class, "executor"));
    PaxosProposer proposer = AtlasDbMetrics.instrument(PaxosProposer.class, PaxosProposerImpl.newProposer(ourLearner, acceptors, learners, config.quorumSize(), leaderUuid, proposerExecutorService));
    InstrumentedExecutorService leaderElectionExecutor = new InstrumentedExecutorService(PTExecutors.newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat("atlas-leaders-election-%d").setDaemon(true).build()), AtlasDbMetrics.getMetricRegistry(), MetricRegistry.name(PaxosLeaderElectionService.class, "executor"));
    PaxosLeaderElectionService paxosLeaderElectionService = new PaxosLeaderElectionServiceBuilder().proposer(proposer).knowledge(ourLearner).potentialLeadersToHosts(otherLeaders).acceptors(acceptors).learners(learners).executor(leaderElectionExecutor).pingRateMs(config.pingRateMs()).randomWaitBeforeProposingLeadershipMs(config.randomWaitBeforeProposingLeadershipMs()).leaderPingResponseWaitMs(config.leaderPingResponseWaitMs()).eventRecorder(leadershipEventRecorder).onlyLogOnQuorumFailure(JavaSuppliers.compose(LeaderRuntimeConfig::onlyLogOnQuorumFailure, runtime)).build();
    LeaderElectionService leaderElectionService = AtlasDbMetrics.instrument(LeaderElectionService.class, paxosLeaderElectionService);
    PingableLeader pingableLeader = AtlasDbMetrics.instrument(PingableLeader.class, paxosLeaderElectionService);
    return ImmutableLocalPaxosServices.builder().ourAcceptor(ourAcceptor).ourLearner(ourLearner).leaderElectionService(leaderElectionService).pingableLeader(pingableLeader).build();
}

Example 2 with PaxosProposer

use of com.palantir.paxos.PaxosProposer in project atlasdb by palantir.

the class PaxosTimestampBoundStoreTest method retriesProposeUntilSuccessful.

@Test
public void retriesProposeUntilSuccessful() throws Exception {
    PaxosProposer wrapper = spy(new OnceFailingPaxosProposer(createPaxosProposer(0)));
    store = createPaxosTimestampBoundStore(0, wrapper);
    store.storeUpperLimit(TIMESTAMP_1);
    assertThat(store.getUpperLimit()).isGreaterThanOrEqualTo(TIMESTAMP_1);
    verify(wrapper, times(2)).propose(anyLong(), anyObject());
}

Example 3 with PaxosProposer

use of com.palantir.paxos.PaxosProposer in project atlasdb by palantir.

the class PaxosTimestampCreator method createTimestampService.

@Override
public Supplier<ManagedTimestampService> createTimestampService(String client, LeaderConfig unused) {
    ExecutorService executor = PTExecutors.newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat("atlas-consensus-" + client + "-%d").setDaemon(true).build());
    Set<String> namespacedUris = PaxosTimeLockUriUtils.getClientPaxosUris(remoteServers, client);
    List<PaxosAcceptor> acceptors = Leaders.createProxyAndLocalList(paxosResource.getPaxosAcceptor(client), namespacedUris, optionalSecurity, PaxosAcceptor.class, "timestamp-bound-store." + client);
    PaxosLearner ourLearner = paxosResource.getPaxosLearner(client);
    List<PaxosLearner> learners = Leaders.createProxyAndLocalList(ourLearner, namespacedUris, optionalSecurity, PaxosLearner.class, "timestamp-bound-store." + client);
    PaxosProposer proposer = instrument(PaxosProposer.class, PaxosProposerImpl.newProposer(ourLearner, ImmutableList.copyOf(acceptors), ImmutableList.copyOf(learners), PaxosRemotingUtils.getQuorumSize(acceptors), UUID.randomUUID(), executor), client);
    PaxosSynchronizer.synchronizeLearner(ourLearner, learners);
    return () -> createManagedPaxosTimestampService(proposer, client, acceptors, learners);
}

Example 4 with PaxosProposer

use of com.palantir.paxos.PaxosProposer in project atlasdb by palantir.

the class PaxosTimestampBoundStoreTest method retriesForceAgreedStateUntilSuccessful.

@Test
public void retriesForceAgreedStateUntilSuccessful() throws Exception {
    PaxosProposer wrapper = spy(new OnceFailingPaxosProposer(createPaxosProposer(0)));
    store = createPaxosTimestampBoundStore(0, wrapper);
    store.forceAgreedState(1, TIMESTAMP_1);
    assertThat(store.getUpperLimit()).isGreaterThanOrEqualTo(TIMESTAMP_1);
    verify(wrapper, times(2)).propose(anyLong(), anyObject());
}