Examples with TransactionStats org.neo4j.kernel.impl.transaction.TransactionStats used on opensource projects

Example 1 with TransactionStats

use of org.neo4j.kernel.impl.transaction.TransactionStats in project neo4j by neo4j.

the class AppsIT method canTerminateAnActiveCommand.

@Test
public void canTerminateAnActiveCommand() throws Exception {
    TransactionStats txStats = db.getDependencyResolver().resolveDependency(TransactionStats.class);
    assertEquals(0, txStats.getNumberOfActiveTransactions());
    Serializable clientId = shellClient.getId();
    Future<?> result = ForkJoinPool.commonPool().submit(() -> {
        try {
            while (txStats.getNumberOfActiveTransactions() == 0) {
                Thread.sleep(10);
            }
            assertEquals(1, txStats.getNumberOfActiveTransactions());
            shellServer.terminate(clientId);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    });
    executeCommandExpectingException("FOREACH(i IN range(0, " + Integer.MAX_VALUE + ") | CREATE ());", "has been terminated");
    assertNull(result.get());
}

Example 2 with TransactionStats

use of org.neo4j.kernel.impl.transaction.TransactionStats 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 3 with TransactionStats

use of org.neo4j.kernel.impl.transaction.TransactionStats in project neo4j by neo4j.

the class HighAvailabilityMemberStateMachineTest method whenHAModeSwitcherSwitchesToSlaveTheOtherModeSwitcherDoNotGetTheOldMasterClient.

@Test
public void whenHAModeSwitcherSwitchesToSlaveTheOtherModeSwitcherDoNotGetTheOldMasterClient() throws Throwable {
    InstanceId me = new InstanceId(1);
    StoreId storeId = newStoreIdForCurrentVersion();
    HighAvailabilityMemberContext context = mock(HighAvailabilityMemberContext.class);
    when(context.getMyId()).thenReturn(me);
    AvailabilityGuard guard = mock(AvailabilityGuard.class);
    ObservedClusterMembers members = mock(ObservedClusterMembers.class);
    ClusterMember masterMember = mock(ClusterMember.class);
    when(masterMember.getHARole()).thenReturn("master");
    when(masterMember.hasRole("master")).thenReturn(true);
    when(masterMember.getInstanceId()).thenReturn(new InstanceId(2));
    when(masterMember.getStoreId()).thenReturn(storeId);
    ClusterMember self = new ClusterMember(me);
    when(members.getMembers()).thenReturn(Arrays.asList(self, masterMember));
    when(members.getCurrentMember()).thenReturn(self);
    DependencyResolver dependencyResolver = mock(DependencyResolver.class);
    FileSystemAbstraction fs = mock(FileSystemAbstraction.class);
    when(fs.fileExists(any(File.class))).thenReturn(true);
    when(dependencyResolver.resolveDependency(FileSystemAbstraction.class)).thenReturn(fs);
    when(dependencyResolver.resolveDependency(Monitors.class)).thenReturn(new Monitors());
    NeoStoreDataSource dataSource = mock(NeoStoreDataSource.class);
    when(dataSource.getDependencyResolver()).thenReturn(dependencyResolver);
    when(dataSource.getStoreId()).thenReturn(storeId);
    when(dependencyResolver.resolveDependency(NeoStoreDataSource.class)).thenReturn(dataSource);
    when(dependencyResolver.resolveDependency(TransactionIdStore.class)).thenReturn(new DeadSimpleTransactionIdStore());
    when(dependencyResolver.resolveDependency(ObservedClusterMembers.class)).thenReturn(members);
    UpdatePuller updatePuller = mock(UpdatePuller.class);
    when(updatePuller.tryPullUpdates()).thenReturn(true);
    when(dependencyResolver.resolveDependency(UpdatePuller.class)).thenReturn(updatePuller);
    ClusterMemberAvailability clusterMemberAvailability = mock(ClusterMemberAvailability.class);
    final TriggerableClusterMemberEvents events = new TriggerableClusterMemberEvents();
    Election election = mock(Election.class);
    HighAvailabilityMemberStateMachine stateMachine = new HighAvailabilityMemberStateMachine(context, guard, members, events, election, NullLogProvider.getInstance());
    ClusterMembers clusterMembers = new ClusterMembers(members, stateMachine);
    when(dependencyResolver.resolveDependency(ClusterMembers.class)).thenReturn(clusterMembers);
    stateMachine.init();
    stateMachine.start();
    final DelegateInvocationHandler<Master> handler = new DelegateInvocationHandler<>(Master.class);
    MasterClientResolver masterClientResolver = mock(MasterClientResolver.class);
    MasterClient masterClient = mock(MasterClient.class);
    when(masterClient.getProtocolVersion()).thenReturn(MasterClient214.PROTOCOL_VERSION);
    when(masterClient.handshake(anyLong(), any(StoreId.class))).thenReturn(new Response<HandshakeResult>(new HandshakeResult(0, 42), storeId, mock(ResourceReleaser.class)) {

        @Override
        public void accept(Handler handler) throws IOException {
        }

        @Override
        public boolean hasTransactionsToBeApplied() {
            return false;
        }
    });
    when(masterClient.toString()).thenReturn("TheExpectedMasterClient!");
    when(masterClientResolver.instantiate(anyString(), anyInt(), anyString(), any(Monitors.class), any(StoreId.class), any(LifeSupport.class))).thenReturn(masterClient);
    final CountDownLatch latch = new CountDownLatch(2);
    final AtomicBoolean switchedSuccessfully = new AtomicBoolean();
    SwitchToSlave.Monitor monitor = new SwitchToSlave.Monitor() {

        @Override
        public void switchToSlaveCompleted(boolean wasSuccessful) {
            switchedSuccessfully.set(wasSuccessful);
            latch.countDown();
        }
    };
    Config config = Config.embeddedDefaults(Collections.singletonMap(ClusterSettings.server_id.name(), me.toString()));
    TransactionStats transactionCounters = mock(TransactionStats.class);
    when(transactionCounters.getNumberOfActiveTransactions()).thenReturn(0L);
    PageCache pageCacheMock = mock(PageCache.class);
    PagedFile pagedFileMock = mock(PagedFile.class);
    when(pagedFileMock.getLastPageId()).thenReturn(1L);
    when(pageCacheMock.map(any(File.class), anyInt())).thenReturn(pagedFileMock);
    TransactionIdStore transactionIdStoreMock = mock(TransactionIdStore.class);
    when(transactionIdStoreMock.getLastCommittedTransaction()).thenReturn(new TransactionId(0, 0, 0));
    SwitchToSlaveCopyThenBranch switchToSlave = new SwitchToSlaveCopyThenBranch(new File(""), NullLogService.getInstance(), mock(FileSystemAbstraction.class), config, dependencyResolver, mock(HaIdGeneratorFactory.class), handler, mock(ClusterMemberAvailability.class), mock(RequestContextFactory.class), mock(PullerFactory.class, RETURNS_MOCKS), Iterables.empty(), masterClientResolver, monitor, new StoreCopyClient.Monitor.Adapter(), Suppliers.singleton(dataSource), Suppliers.singleton(transactionIdStoreMock), slave -> {
        SlaveServer mock = mock(SlaveServer.class);
        when(mock.getSocketAddress()).thenReturn(new InetSocketAddress("localhost", 123));
        return mock;
    }, updatePuller, pageCacheMock, mock(Monitors.class), transactionCounters);
    ComponentSwitcherContainer switcherContainer = new ComponentSwitcherContainer();
    HighAvailabilityModeSwitcher haModeSwitcher = new HighAvailabilityModeSwitcher(switchToSlave, mock(SwitchToMaster.class), election, clusterMemberAvailability, mock(ClusterClient.class), storeSupplierMock(), me, switcherContainer, neoStoreDataSourceSupplierMock(), NullLogService.getInstance());
    haModeSwitcher.init();
    haModeSwitcher.start();
    haModeSwitcher.listeningAt(URI.create("http://localhost:12345"));
    stateMachine.addHighAvailabilityMemberListener(haModeSwitcher);
    final AtomicReference<Master> ref = new AtomicReference<>(null);
    //noinspection unchecked
    AbstractComponentSwitcher<Object> otherModeSwitcher = new AbstractComponentSwitcher<Object>(mock(DelegateInvocationHandler.class)) {

        @Override
        protected Object getSlaveImpl() {
            Master master = handler.cement();
            ref.set(master);
            latch.countDown();
            return null;
        }

        @Override
        protected Object getMasterImpl() {
            return null;
        }
    };
    switcherContainer.add(otherModeSwitcher);
    // When
    events.switchToSlave(me);
    // Then
    latch.await();
    assertTrue("mode switch failed", switchedSuccessfully.get());
    Master actual = ref.get();
    // let's test the toString()s since there are too many wrappers of proxies
    assertEquals(masterClient.toString(), actual.toString());
    stateMachine.stop();
    stateMachine.shutdown();
    haModeSwitcher.stop();
    haModeSwitcher.shutdown();
}

Example 4 with TransactionStats

use of org.neo4j.kernel.impl.transaction.TransactionStats in project neo4j by neo4j.

the class TransactionIT method executing_single_statement_in_new_transaction_and_failing_to_read_the_output_should_interrupt.

@Test
public void executing_single_statement_in_new_transaction_and_failing_to_read_the_output_should_interrupt() throws Exception {
    // given
    long initialNodes = countNodes();
    TransactionStats txMonitor = ((GraphDatabaseAPI) graphdb()).getDependencyResolver().resolveDependency(TransactionStats.class);
    long initialTerminations = txMonitor.getNumberOfTerminatedTransactions();
    // when sending a request and aborting in the middle of receiving the result
    Socket socket = new Socket("localhost", 7474);
    PrintStream out = new PrintStream(socket.getOutputStream());
    String output = quotedJson("{ 'statements': [ { 'statement': 'WITH * UNWIND range(0, 9999) AS i CREATE (n {i: i}) RETURN n' } ] " + "}").get();
    out.print("POST /db/data/transaction/commit HTTP/1.1\r\n");
    out.print("Host: localhost:7474\r\n");
    out.print("Content-type: application/json; charset=utf-8\r\n");
    out.print("Content-length: " + output.getBytes().length + "\r\n");
    out.print("\r\n");
    out.print(output);
    out.print("\r\n");
    InputStream inputStream = socket.getInputStream();
    Reader reader = new InputStreamReader(inputStream);
    int numRead = 0;
    while (numRead < 300) {
        numRead += reader.read(new char[300]);
    }
    socket.close();
    try (Transaction ignored = graphdb().beginTx()) {
        assertEquals(initialNodes, countNodes());
    }
    // then soon the transaction should have been terminated
    long endTime = System.currentTimeMillis() + 5000;
    long additionalTerminations = 0;
    while (true) {
        additionalTerminations = txMonitor.getNumberOfTerminatedTransactions() - initialTerminations;
        if (additionalTerminations > 0 || System.currentTimeMillis() > endTime) {
            break;
        }
        Thread.sleep(100);
    }
    assertEquals(1, additionalTerminations);
}

Example 5 with TransactionStats

use of org.neo4j.kernel.impl.transaction.TransactionStats 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));
}