Examples with MasterClient org.neo4j.kernel.ha.com.slave.MasterClient used on opensource projects

Example 1 with MasterClient

use of org.neo4j.kernel.ha.com.slave.MasterClient in project neo4j by neo4j.

the class SwitchToSlaveBranchThenCopyTest method shouldHandleBranchedStoreWhenHandshakeFailsWithBranchedDataException.

@Test
public void shouldHandleBranchedStoreWhenHandshakeFailsWithBranchedDataException() throws Throwable {
    // Given
    SwitchToSlaveBranchThenCopy switchToSlave = newSwitchToSlaveSpy();
    URI masterUri = new URI("cluster://localhost?serverId=1");
    URI me = new URI("cluster://localhost?serverId=2");
    MasterClient masterClient = mock(MasterClient.class);
    when(masterClient.handshake(anyLong(), any(StoreId.class))).thenThrow(new BranchedDataException(""));
    TransactionIdStore transactionIdStore = mock(TransactionIdStore.class);
    when(transactionIdStore.getLastCommittedTransaction()).thenReturn(new TransactionId(42, 42, 42));
    when(transactionIdStore.getLastCommittedTransactionId()).thenReturn(TransactionIdStore.BASE_TX_ID);
    // When
    try {
        switchToSlave.checkDataConsistency(masterClient, transactionIdStore, storeId, masterUri, me, CancellationRequest.NEVER_CANCELLED);
        fail("Should have thrown " + BranchedDataException.class.getSimpleName() + " exception");
    } catch (BranchedDataException e) {
    // good we got the expected exception
    }
    // Then
    verify(switchToSlave).stopServicesAndHandleBranchedStore(any(BranchedDataPolicy.class));
}

Example 2 with MasterClient

use of org.neo4j.kernel.ha.com.slave.MasterClient in project neo4j by neo4j.

the class SwitchToSlaveCopyThenBranchTest method shouldHandleBranchedStoreWhenMyStoreIdDiffersFromMasterStoreId.

@Test
@SuppressWarnings("unchecked")
public void shouldHandleBranchedStoreWhenMyStoreIdDiffersFromMasterStoreId() throws Throwable {
    // Given
    SwitchToSlaveCopyThenBranch switchToSlave = newSwitchToSlaveSpy();
    URI me = new URI("cluster://localhost?serverId=2");
    MasterClient masterClient = mock(MasterClient.class);
    Response<HandshakeResult> response = mock(Response.class);
    when(response.response()).thenReturn(new HandshakeResult(1, 2));
    when(masterClient.handshake(anyLong(), any(StoreId.class))).thenReturn(response);
    StoreId storeId = newStoreIdForCurrentVersion(1, 2, 3, 4);
    TransactionIdStore transactionIdStore = mock(TransactionIdStore.class);
    when(transactionIdStore.getLastCommittedTransaction()).thenReturn(new TransactionId(42, 42, 42));
    when(transactionIdStore.getLastCommittedTransactionId()).thenReturn(TransactionIdStore.BASE_TX_ID);
    // When
    try {
        switchToSlave.checkDataConsistency(masterClient, transactionIdStore, storeId, new URI("cluster://localhost?serverId=1"), me, CancellationRequest.NEVER_CANCELLED);
        fail("Should have thrown " + MismatchingStoreIdException.class.getSimpleName() + " exception");
    } catch (MismatchingStoreIdException e) {
    // good we got the expected exception
    }
    // Then
    verify(switchToSlave).stopServicesAndHandleBranchedStore(any(BranchedDataPolicy.class), any(URI.class), any(URI.class), any(CancellationRequest.class));
}

Example 3 with MasterClient

use of org.neo4j.kernel.ha.com.slave.MasterClient in project neo4j by neo4j.

the class SwitchToSlaveCopyThenBranchTest method newSwitchToSlaveSpy.

@SuppressWarnings("unchecked")
private SwitchToSlaveCopyThenBranch 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(asList(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(MasterClient.CURRENT);
    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 SwitchToSlaveCopyThenBranch(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 4 with MasterClient

use of org.neo4j.kernel.ha.com.slave.MasterClient in project neo4j by neo4j.

the class SwitchToSlaveCopyThenBranchTest method shouldNotBranchStoreUnlessWeHaveCopiedDownAReplacement.

@Test
public void shouldNotBranchStoreUnlessWeHaveCopiedDownAReplacement() throws Throwable {
    // Given
    StoreCopyClient storeCopyClient = mock(StoreCopyClient.class);
    doAnswer(invocation -> {
        MoveAfterCopy moveAfterCopy = invocation.getArgumentAt(2, MoveAfterCopy.class);
        moveAfterCopy.move(Stream.empty(), new File(""), new File(""));
        return null;
    }).when(storeCopyClient).copyStore(any(StoreCopyClient.StoreCopyRequester.class), any(CancellationRequest.class), any(MoveAfterCopy.class));
    PageCache pageCacheMock = mock(PageCache.class);
    PagedFile pagedFileMock = mock(PagedFile.class);
    when(pagedFileMock.getLastPageId()).thenReturn(1L);
    when(pageCacheMock.map(any(File.class), anyInt())).thenReturn(pagedFileMock);
    SwitchToSlaveCopyThenBranch switchToSlave = newSwitchToSlaveSpy(pageCacheMock, storeCopyClient);
    URI masterUri = new URI("cluster://localhost?serverId=1");
    URI me = new URI("cluster://localhost?serverId=2");
    CancellationRequest cancellationRequest = CancellationRequest.NEVER_CANCELLED;
    MasterClient masterClient = mock(MasterClient.class);
    when(masterClient.handshake(anyLong(), any(StoreId.class))).thenThrow(new BranchedDataException(""));
    TransactionIdStore transactionIdStore = mock(TransactionIdStore.class);
    when(transactionIdStore.getLastCommittedTransaction()).thenReturn(new TransactionId(42, 42, 42));
    when(transactionIdStore.getLastCommittedTransactionId()).thenReturn(TransactionIdStore.BASE_TX_ID);
    // When
    BranchedDataPolicy branchPolicy = mock(BranchedDataPolicy.class);
    switchToSlave.stopServicesAndHandleBranchedStore(branchPolicy, masterUri, me, cancellationRequest);
    // Then
    InOrder inOrder = Mockito.inOrder(storeCopyClient, branchPolicy);
    inOrder.verify(storeCopyClient).copyStore(any(StoreCopyClient.StoreCopyRequester.class), any(CancellationRequest.class), any(MoveAfterCopy.class));
    inOrder.verify(branchPolicy).handle(new File(""), pageCacheMock, NullLogService.getInstance());
}

Example 5 with MasterClient

use of org.neo4j.kernel.ha.com.slave.MasterClient in project neo4j by neo4j.

the class SwitchToSlaveCopyThenBranchTest method shouldHandleBranchedStoreWhenHandshakeFailsWithBranchedDataException.

@Test
public void shouldHandleBranchedStoreWhenHandshakeFailsWithBranchedDataException() throws Throwable {
    // Given
    SwitchToSlaveCopyThenBranch switchToSlave = newSwitchToSlaveSpy();
    URI masterUri = new URI("cluster://localhost?serverId=1");
    URI me = new URI("cluster://localhost?serverId=2");
    MasterClient masterClient = mock(MasterClient.class);
    when(masterClient.handshake(anyLong(), any(StoreId.class))).thenThrow(new BranchedDataException(""));
    TransactionIdStore transactionIdStore = mock(TransactionIdStore.class);
    when(transactionIdStore.getLastCommittedTransaction()).thenReturn(new TransactionId(42, 42, 42));
    when(transactionIdStore.getLastCommittedTransactionId()).thenReturn(TransactionIdStore.BASE_TX_ID);
    // When
    try {
        switchToSlave.checkDataConsistency(masterClient, transactionIdStore, storeId, masterUri, me, CancellationRequest.NEVER_CANCELLED);
        fail("Should have thrown " + BranchedDataException.class.getSimpleName() + " exception");
    } catch (BranchedDataException e) {
    // good we got the expected exception
    }
    // Then
    verify(switchToSlave).stopServicesAndHandleBranchedStore(any(BranchedDataPolicy.class), any(URI.class), any(URI.class), any(CancellationRequest.class));
}