Examples with ClusterMembers org.neo4j.kernel.ha.cluster.member.ClusterMembers used on opensource projects

Example 6 with ClusterMembers

use of org.neo4j.kernel.ha.cluster.member.ClusterMembers in project neo4j by neo4j.

the class SwitchToSlave method checkMyStoreIdAndMastersStoreId.

void checkMyStoreIdAndMastersStoreId(StoreId myStoreId, URI masterUri, DependencyResolver resolver) {
    ClusterMembers clusterMembers = resolver.resolveDependency(ClusterMembers.class);
    InstanceId serverId = HighAvailabilityModeSwitcher.getServerId(masterUri);
    Iterable<ClusterMember> members = clusterMembers.getMembers();
    ClusterMember master = firstOrNull(filter(hasInstanceId(serverId), members));
    if (master == null) {
        throw new IllegalStateException("Cannot find the master among " + members + " with master serverId=" + serverId + " and uri=" + masterUri);
    }
    StoreId masterStoreId = master.getStoreId();
    if (!myStoreId.equals(masterStoreId)) {
        throw new MismatchingStoreIdException(myStoreId, master.getStoreId());
    } else if (!myStoreId.equalsByUpgradeId(master.getStoreId())) {
        throw new BranchedDataException("My store with " + myStoreId + " was updated independently from " + "master's store " + masterStoreId);
    }
}

Example 7 with ClusterMembers

use of org.neo4j.kernel.ha.cluster.member.ClusterMembers in project neo4j by neo4j.

the class SwitchToSlaveBranchThenCopyTest method newSwitchToSlaveSpy.

@SuppressWarnings("unchecked")
private SwitchToSlaveBranchThenCopy newSwitchToSlaveSpy(PageCache pageCacheMock, StoreCopyClient storeCopyClient) throws IOException {
    ClusterMembers clusterMembers = mock(ClusterMembers.class);
    ClusterMember master = mock(ClusterMember.class);
    when(master.getStoreId()).thenReturn(storeId);
    when(master.getHARole()).thenReturn(HighAvailabilityModeSwitcher.MASTER);
    when(master.hasRole(eq(HighAvailabilityModeSwitcher.MASTER))).thenReturn(true);
    when(master.getInstanceId()).thenReturn(new InstanceId(1));
    when(clusterMembers.getMembers()).thenReturn(singletonList(master));
    Dependencies resolver = new Dependencies();
    resolver.satisfyDependencies(requestContextFactory, clusterMembers, mock(TransactionObligationFulfiller.class), mock(OnlineBackupKernelExtension.class), mock(IndexConfigStore.class), mock(TransactionCommittingResponseUnpacker.class), mock(DataSourceManager.class), mock(StoreLockerLifecycleAdapter.class), mock(FileSystemWatcherService.class));
    NeoStoreDataSource dataSource = mock(NeoStoreDataSource.class);
    when(dataSource.getStoreId()).thenReturn(storeId);
    TransactionStats transactionCounters = mock(TransactionStats.class);
    when(transactionCounters.getNumberOfActiveTransactions()).thenReturn(0L);
    Response<HandshakeResult> response = mock(Response.class);
    when(response.response()).thenReturn(new HandshakeResult(42, 2));
    when(masterClient.handshake(anyLong(), any(StoreId.class))).thenReturn(response);
    when(masterClient.getProtocolVersion()).thenReturn(MasterClient320.PROTOCOL_VERSION);
    TransactionIdStore transactionIdStoreMock = mock(TransactionIdStore.class);
    // note that the checksum (the second member of the array) is the same as the one in the handshake mock above
    when(transactionIdStoreMock.getLastCommittedTransaction()).thenReturn(new TransactionId(42, 42, 42));
    MasterClientResolver masterClientResolver = mock(MasterClientResolver.class);
    when(masterClientResolver.instantiate(anyString(), anyInt(), anyString(), any(Monitors.class), any(StoreId.class), any(LifeSupport.class))).thenReturn(masterClient);
    return spy(new SwitchToSlaveBranchThenCopy(new File(""), NullLogService.getInstance(), configMock(), resolver, mock(HaIdGeneratorFactory.class), mock(DelegateInvocationHandler.class), mock(ClusterMemberAvailability.class), requestContextFactory, pullerFactory, masterClientResolver, mock(SwitchToSlave.Monitor.class), storeCopyClient, Suppliers.singleton(dataSource), Suppliers.singleton(transactionIdStoreMock), slave -> {
        SlaveServer server = mock(SlaveServer.class);
        InetSocketAddress inetSocketAddress = InetSocketAddress.createUnresolved("localhost", 42);
        when(server.getSocketAddress()).thenReturn(inetSocketAddress);
        return server;
    }, updatePuller, pageCacheMock, mock(Monitors.class), transactionCounters));
}

Example 8 with ClusterMembers

use of org.neo4j.kernel.ha.cluster.member.ClusterMembers in project neo4j by neo4j.

the class ClusterManager method allSeesAllAsAvailable.

public static Predicate<ManagedCluster> allSeesAllAsAvailable() {
    return new Predicate<ManagedCluster>() {

        @Override
        public boolean test(ManagedCluster cluster) {
            if (!allSeesAllAsJoined().test(cluster)) {
                return false;
            }
            int clusterMembersChecked = 0;
            for (HighlyAvailableGraphDatabase database : cluster.getAllMembers()) {
                clusterMembersChecked++;
                ClusterMembers members = database.getDependencyResolver().resolveDependency(ClusterMembers.class);
                for (ClusterMember clusterMember : members.getMembers()) {
                    if (!cluster.isAvailable(clusterMember)) {
                        return false;
                    }
                }
            }
            if (clusterMembersChecked == 0) {
                return false;
            }
            // Everyone sees everyone else as available!
            for (HighlyAvailableGraphDatabase database : cluster.getAllMembers()) {
                Log log = database.getDependencyResolver().resolveDependency(LogService.class).getInternalLog(getClass());
                log.debug(this.toString());
            }
            return true;
        }

        @Override
        public String toString() {
            return "All instances should see all others as available";
        }
    };
}

Example 9 with ClusterMembers

use of org.neo4j.kernel.ha.cluster.member.ClusterMembers in project neo4j by neo4j.

the class ClusterManager method stateToString.

public static String stateToString(ManagedCluster cluster) {
    StringBuilder buf = new StringBuilder("\n");
    for (HighlyAvailableGraphDatabase database : cluster.getAllMembers()) {
        ClusterClient client = database.getDependencyResolver().resolveDependency(ClusterClient.class);
        buf.append("Instance ").append(client.getServerId()).append(":State ").append(database.getInstanceState()).append(" (").append(client.getClusterServer()).append("):").append("\n");
        ClusterMembers members = database.getDependencyResolver().resolveDependency(ClusterMembers.class);
        buf.append(members);
    }
    return buf.toString();
}

Example 10 with ClusterMembers

use of org.neo4j.kernel.ha.cluster.member.ClusterMembers in project neo4j by neo4j.

the class ClusterMetricsTest method clusterMetricsReportSlaveAvailable.

@Test
public void clusterMetricsReportSlaveAvailable() {
    // given
    Supplier<ClusterMembers> clusterMembers = getClusterMembers(HighAvailabilityModeSwitcher.SLAVE, HighAvailabilityMemberState.SLAVE);
    life.add(new ClusterMetrics(monitors, metricRegistry, clusterMembers));
    life.start();
    // when
    TestReporter reporter = new TestReporter(metricRegistry);
    reporter.start(10, TimeUnit.MILLISECONDS);
    //then wait for the reporter to get a report
    reporter.report();
    assertEquals(0, reporter.isMasterValue);
    assertEquals(1, reporter.isAvailableValue);
}