Examples with TransactionSystemClient org.apache.tephra.TransactionSystemClient used on opensource projects

Example 1 with TransactionSystemClient

use of org.apache.tephra.TransactionSystemClient in project cdap by caskdata.

the class JobQueueDatasetTest method before.

@Before
public void before() throws Exception {
    DatasetFramework dsFramework = getInjector().getInstance(DatasetFramework.class);
    TransactionSystemClient txClient = getInjector().getInstance(TransactionSystemClient.class);
    TransactionExecutorFactory txExecutorFactory = new DynamicTransactionExecutorFactory(txClient);
    jobQueue = dsFramework.getDataset(Schedulers.JOB_QUEUE_DATASET_ID, new HashMap<String, String>(), null);
    Assert.assertNotNull(jobQueue);
    this.txExecutor = txExecutorFactory.createExecutor(Collections.singleton((TransactionAware) jobQueue));
}

Example 2 with TransactionSystemClient

use of org.apache.tephra.TransactionSystemClient in project cdap by caskdata.

the class CDAPOperationalStatsTest method setup.

@BeforeClass
public static void setup() throws Exception {
    injector = AppFabricTestHelper.getInjector();
    namespaceAdmin = injector.getInstance(NamespaceAdmin.class);
    namespaceAdmin.create(new NamespaceMeta.Builder().setName(NAMESPACE).build());
    CConfiguration cConf = injector.getInstance(CConfiguration.class);
    AppFabricTestHelper.deployApplication(Id.Namespace.fromEntityId(NAMESPACE), AllProgramsApp.class, null, cConf);
    TransactionSystemClient txClient = injector.getInstance(TransactionSystemClient.class);
    Transaction tx1 = txClient.startShort();
    txClient.canCommitOrThrow(tx1, Collections.singleton(Bytes.toBytes("foo")));
    Transaction tx2 = txClient.startShort();
    txClient.commitOrThrow(tx2);
    Transaction tx3 = txClient.startShort();
    txClient.invalidate(tx3.getTransactionId());
}

Example 3 with TransactionSystemClient

use of org.apache.tephra.TransactionSystemClient in project cdap by caskdata.

the class TransactionServiceClientTest method testGetSnapshot.

@Test
public void testGetSnapshot() throws Exception {
    TransactionSystemClient client = getClient();
    SnapshotCodecProvider codecProvider = new SnapshotCodecProvider(injector.getInstance(Configuration.class));
    Transaction tx1 = client.startShort();
    long currentTime = System.currentTimeMillis();
    TransactionSnapshot snapshot;
    try (InputStream in = client.getSnapshotInputStream()) {
        snapshot = codecProvider.decode(in);
    }
    Assert.assertTrue(snapshot.getTimestamp() >= currentTime);
    Assert.assertTrue(snapshot.getInProgress().containsKey(tx1.getWritePointer()));
    // Ensures that getSnapshot didn't persist a snapshot
    TransactionSnapshot snapshotAfter = getStateStorage().getLatestSnapshot();
    if (snapshotAfter != null) {
        Assert.assertTrue(snapshot.getTimestamp() > snapshotAfter.getTimestamp());
    }
}

Example 4 with TransactionSystemClient

use of org.apache.tephra.TransactionSystemClient in project cdap by caskdata.

the class DatasetServiceTestBase method initializeAndStartService.

protected static void initializeAndStartService(CConfiguration cConf) throws Exception {
    // TODO: this whole method is a mess. Streamline it!
    injector = Guice.createInjector(new ConfigModule(cConf), new DiscoveryRuntimeModule().getInMemoryModules(), new NonCustomLocationUnitTestModule().getModule(), new NamespaceClientRuntimeModule().getInMemoryModules(), new SystemDatasetRuntimeModule().getInMemoryModules(), new TransactionInMemoryModule(), new AuthorizationTestModule(), new AuthorizationEnforcementModule().getInMemoryModules(), new AuthenticationContextModules().getMasterModule(), new AbstractModule() {

        @Override
        protected void configure() {
            bind(MetricsCollectionService.class).to(NoOpMetricsCollectionService.class).in(Singleton.class);
            install(new FactoryModuleBuilder().implement(DatasetDefinitionRegistry.class, DefaultDatasetDefinitionRegistry.class).build(DatasetDefinitionRegistryFactory.class));
            // through the injector, we only need RemoteDatasetFramework in these tests
            bind(RemoteDatasetFramework.class);
            bind(OwnerStore.class).to(InMemoryOwnerStore.class);
            bind(OwnerAdmin.class).to(DefaultOwnerAdmin.class);
        }
    });
    AuthorizationEnforcer authEnforcer = injector.getInstance(AuthorizationEnforcer.class);
    AuthenticationContext authenticationContext = injector.getInstance(AuthenticationContext.class);
    DiscoveryService discoveryService = injector.getInstance(DiscoveryService.class);
    discoveryServiceClient = injector.getInstance(DiscoveryServiceClient.class);
    dsFramework = injector.getInstance(RemoteDatasetFramework.class);
    // Tx Manager to support working with datasets
    txManager = injector.getInstance(TransactionManager.class);
    txManager.startAndWait();
    TransactionSystemClient txSystemClient = injector.getInstance(TransactionSystemClient.class);
    TransactionSystemClientService txSystemClientService = new DelegatingTransactionSystemClientService(txSystemClient);
    NamespacedLocationFactory namespacedLocationFactory = injector.getInstance(NamespacedLocationFactory.class);
    SystemDatasetInstantiatorFactory datasetInstantiatorFactory = new SystemDatasetInstantiatorFactory(locationFactory, dsFramework, cConf);
    // ok to pass null, since the impersonator won't actually be called, if kerberos security is not enabled
    Impersonator impersonator = new DefaultImpersonator(cConf, null);
    DatasetAdminService datasetAdminService = new DatasetAdminService(dsFramework, cConf, locationFactory, datasetInstantiatorFactory, new NoOpMetadataStore(), impersonator);
    ImmutableSet<HttpHandler> handlers = ImmutableSet.<HttpHandler>of(new DatasetAdminOpHTTPHandler(datasetAdminService));
    MetricsCollectionService metricsCollectionService = injector.getInstance(MetricsCollectionService.class);
    opExecutorService = new DatasetOpExecutorService(cConf, discoveryService, metricsCollectionService, handlers);
    opExecutorService.startAndWait();
    Map<String, DatasetModule> defaultModules = injector.getInstance(Key.get(new TypeLiteral<Map<String, DatasetModule>>() {
    }, Constants.Dataset.Manager.DefaultDatasetModules.class));
    ImmutableMap<String, DatasetModule> modules = ImmutableMap.<String, DatasetModule>builder().putAll(defaultModules).putAll(DatasetMetaTableUtil.getModules()).build();
    registryFactory = injector.getInstance(DatasetDefinitionRegistryFactory.class);
    inMemoryDatasetFramework = new InMemoryDatasetFramework(registryFactory, modules);
    DiscoveryExploreClient exploreClient = new DiscoveryExploreClient(discoveryServiceClient, authenticationContext);
    ExploreFacade exploreFacade = new ExploreFacade(exploreClient, cConf);
    namespaceAdmin = injector.getInstance(NamespaceAdmin.class);
    namespaceAdmin.create(NamespaceMeta.DEFAULT);
    ownerAdmin = injector.getInstance(OwnerAdmin.class);
    NamespaceQueryAdmin namespaceQueryAdmin = injector.getInstance(NamespaceQueryAdmin.class);
    TransactionExecutorFactory txExecutorFactory = new DynamicTransactionExecutorFactory(txSystemClient);
    DatasetTypeManager typeManager = new DatasetTypeManager(cConf, locationFactory, txSystemClientService, txExecutorFactory, inMemoryDatasetFramework, impersonator);
    DatasetOpExecutor opExecutor = new InMemoryDatasetOpExecutor(dsFramework);
    DatasetInstanceManager instanceManager = new DatasetInstanceManager(txSystemClientService, txExecutorFactory, inMemoryDatasetFramework);
    DatasetTypeService noAuthTypeService = new DefaultDatasetTypeService(typeManager, namespaceAdmin, namespacedLocationFactory, cConf, impersonator, txSystemClientService, inMemoryDatasetFramework, defaultModules);
    DatasetTypeService typeService = new AuthorizationDatasetTypeService(noAuthTypeService, authEnforcer, authenticationContext);
    instanceService = new DatasetInstanceService(typeService, noAuthTypeService, instanceManager, opExecutor, exploreFacade, namespaceQueryAdmin, ownerAdmin, authEnforcer, authenticationContext);
    service = new DatasetService(cConf, discoveryService, discoveryServiceClient, metricsCollectionService, opExecutor, new HashSet<DatasetMetricsReporter>(), typeService, instanceService);
    // Start dataset service, wait for it to be discoverable
    service.startAndWait();
    waitForService(Constants.Service.DATASET_EXECUTOR);
    waitForService(Constants.Service.DATASET_MANAGER);
    // this usually happens while creating a namespace, however not doing that in data fabric tests
    Locations.mkdirsIfNotExists(namespacedLocationFactory.get(NamespaceId.DEFAULT));
}

Example 5 with TransactionSystemClient

use of org.apache.tephra.TransactionSystemClient in project cdap by caskdata.

the class CubeDatasetTest method testTxRetryOnFailure.

@Test
public void testTxRetryOnFailure() throws Exception {
    // This test ensures that there's no non-transactional cache used in cube dataset. For that, it
    // 1) simulates transaction conflict for the first write to cube
    // 2) attempts to write again, writes successfully
    // 3) uses second cube instance to read the result
    // 
    // In case there's a non-transactional cache used in cube, it would fill entity mappings in the first tx, and only
    // use them to write data. Hence, when reading - there will be no mapping in entity table to decode, as first tx
    // that wrote it is not visible (was aborted on conflict).
    Aggregation agg1 = new DefaultAggregation(ImmutableList.of("dim1", "dim2", "dim3"));
    int resolution = 1;
    Cube cube1 = getCubeInternal("concurrCube", new int[] { resolution }, ImmutableMap.of("agg1", agg1));
    Cube cube2 = getCubeInternal("concurrCube", new int[] { resolution }, ImmutableMap.of("agg1", agg1));
    Configuration txConf = HBaseConfiguration.create();
    TransactionManager txManager = new TransactionManager(txConf);
    txManager.startAndWait();
    try {
        TransactionSystemClient txClient = new InMemoryTxSystemClient(txManager);
        // 1) write and abort after commit to simlate conflict
        Transaction tx = txClient.startShort();
        ((TransactionAware) cube1).startTx(tx);
        writeInc(cube1, "metric1", 1, 1, "1", "1", "1");
        ((TransactionAware) cube1).commitTx();
        txClient.abort(tx);
        ((TransactionAware) cube1).rollbackTx();
        // 2) write successfully
        tx = txClient.startShort();
        ((TransactionAware) cube1).startTx(tx);
        writeInc(cube1, "metric1", 1, 1, "1", "1", "1");
        // let's pretend we had conflict and rollback it
        ((TransactionAware) cube1).commitTx();
        txClient.commitOrThrow(tx);
        ((TransactionAware) cube1).postTxCommit();
        // 3) read using different cube instance
        tx = txClient.startShort();
        ((TransactionAware) cube2).startTx(tx);
        verifyCountQuery(cube2, 0, 2, resolution, "metric1", AggregationFunction.SUM, new HashMap<String, String>(), new ArrayList<String>(), ImmutableList.of(new TimeSeries("metric1", new HashMap<String, String>(), timeValues(1, 1))));
        // let's pretend we had conflict and rollback it
        ((TransactionAware) cube2).commitTx();
        txClient.commitOrThrow(tx);
        ((TransactionAware) cube2).postTxCommit();
    } finally {
        txManager.stopAndWait();
    }
}