Examples with TitanTransaction com.thinkaurelius.titan.core.TitanTransaction used on opensource projects

Example 1 with TitanTransaction

use of com.thinkaurelius.titan.core.TitanTransaction in project titan by thinkaurelius.

the class TitanGraphTest method simpleLogTest.

public void simpleLogTest(final boolean withLogFailure) throws InterruptedException {
    final String userlogName = "test";
    final Serializer serializer = graph.getDataSerializer();
    final EdgeSerializer edgeSerializer = graph.getEdgeSerializer();
    final TimestampProvider times = graph.getConfiguration().getTimestampProvider();
    final Instant startTime = times.getTime();
    clopen(option(SYSTEM_LOG_TRANSACTIONS), true, option(LOG_BACKEND, USER_LOG), (withLogFailure ? TestMockLog.class.getName() : LOG_BACKEND.getDefaultValue()), option(TestMockLog.LOG_MOCK_FAILADD, USER_LOG), withLogFailure, option(KCVSLog.LOG_READ_LAG_TIME, USER_LOG), Duration.ofMillis(50), option(LOG_READ_INTERVAL, USER_LOG), Duration.ofMillis(250), option(LOG_SEND_DELAY, USER_LOG), Duration.ofMillis(100), option(KCVSLog.LOG_READ_LAG_TIME, TRANSACTION_LOG), Duration.ofMillis(50), option(LOG_READ_INTERVAL, TRANSACTION_LOG), Duration.ofMillis(250), option(MAX_COMMIT_TIME), Duration.ofSeconds(1));
    final String instanceid = graph.getConfiguration().getUniqueGraphId();
    PropertyKey weight = tx.makePropertyKey("weight").dataType(Float.class).cardinality(Cardinality.SINGLE).make();
    EdgeLabel knows = tx.makeEdgeLabel("knows").make();
    TitanVertex n1 = tx.addVertex("weight", 10.5);
    newTx();
    final Instant[] txTimes = new Instant[4];
    //Transaction with custom userlog name
    txTimes[0] = times.getTime();
    TitanTransaction tx2 = graph.buildTransaction().logIdentifier(userlogName).start();
    TitanVertex v1 = tx2.addVertex("weight", 111.1);
    v1.addEdge("knows", v1);
    tx2.commit();
    final long v1id = getId(v1);
    txTimes[1] = times.getTime();
    tx2 = graph.buildTransaction().logIdentifier(userlogName).start();
    TitanVertex v2 = tx2.addVertex("weight", 222.2);
    v2.addEdge("knows", getV(tx2, v1id));
    tx2.commit();
    final long v2id = getId(v2);
    //Only read tx
    tx2 = graph.buildTransaction().logIdentifier(userlogName).start();
    v1 = getV(tx2, v1id);
    assertEquals(111.1, v1.<Float>value("weight").doubleValue(), 0.01);
    assertEquals(222.2, getV(tx2, v2).<Float>value("weight").doubleValue(), 0.01);
    tx2.commit();
    //Deleting transaction
    txTimes[2] = times.getTime();
    tx2 = graph.buildTransaction().logIdentifier(userlogName).start();
    v2 = getV(tx2, v2id);
    assertEquals(222.2, v2.<Float>value("weight").doubleValue(), 0.01);
    v2.remove();
    tx2.commit();
    //Edge modifying transaction
    txTimes[3] = times.getTime();
    tx2 = graph.buildTransaction().logIdentifier(userlogName).start();
    v1 = getV(tx2, v1id);
    assertEquals(111.1, v1.<Float>value("weight").doubleValue(), 0.01);
    Edge e = getOnlyElement(v1.query().direction(Direction.OUT).labels("knows").edges());
    assertFalse(e.property("weight").isPresent());
    e.property("weight", 44.4);
    tx2.commit();
    close();
    final Instant endTime = times.getTime();
    final ReadMarker startMarker = ReadMarker.fromTime(startTime);
    Log txlog = openTxLog();
    Log userLog = openUserLog(userlogName);
    final EnumMap<LogTxStatus, AtomicInteger> txMsgCounter = new EnumMap<LogTxStatus, AtomicInteger>(LogTxStatus.class);
    for (LogTxStatus status : LogTxStatus.values()) txMsgCounter.put(status, new AtomicInteger(0));
    final AtomicInteger userlogMeta = new AtomicInteger(0);
    txlog.registerReader(startMarker, new MessageReader() {

        @Override
        public void read(Message message) {
            Instant msgTime = message.getTimestamp();
            assertTrue(msgTime.isAfter(startTime) || msgTime.equals(startTime));
            assertNotNull(message.getSenderId());
            TransactionLogHeader.Entry txEntry = TransactionLogHeader.parse(message.getContent(), serializer, times);
            TransactionLogHeader header = txEntry.getHeader();
            //                System.out.println(header.getTimestamp(TimeUnit.MILLISECONDS));
            assertTrue(header.getTimestamp().isAfter(startTime) || header.getTimestamp().equals(startTime));
            assertTrue(header.getTimestamp().isBefore(msgTime) || header.getTimestamp().equals(msgTime));
            assertNotNull(txEntry.getMetadata());
            assertNull(txEntry.getMetadata().get(LogTxMeta.GROUPNAME));
            LogTxStatus status = txEntry.getStatus();
            if (status == LogTxStatus.PRECOMMIT) {
                assertTrue(txEntry.hasContent());
                Object logid = txEntry.getMetadata().get(LogTxMeta.LOG_ID);
                if (logid != null) {
                    assertTrue(logid instanceof String);
                    assertEquals(userlogName, logid);
                    userlogMeta.incrementAndGet();
                }
            } else if (withLogFailure) {
                assertTrue(status.isPrimarySuccess() || status == LogTxStatus.SECONDARY_FAILURE);
                if (status == LogTxStatus.SECONDARY_FAILURE) {
                    TransactionLogHeader.SecondaryFailures secFail = txEntry.getContentAsSecondaryFailures(serializer);
                    assertTrue(secFail.failedIndexes.isEmpty());
                    assertTrue(secFail.userLogFailure);
                }
            } else {
                assertFalse(txEntry.hasContent());
                assertTrue(status.isSuccess());
            }
            txMsgCounter.get(txEntry.getStatus()).incrementAndGet();
        }
    });
    final EnumMap<Change, AtomicInteger> userChangeCounter = new EnumMap<Change, AtomicInteger>(Change.class);
    for (Change change : Change.values()) userChangeCounter.put(change, new AtomicInteger(0));
    final AtomicInteger userLogMsgCounter = new AtomicInteger(0);
    userLog.registerReader(startMarker, new MessageReader() {

        @Override
        public void read(Message message) {
            Instant msgTime = message.getTimestamp();
            assertTrue(msgTime.isAfter(startTime) || msgTime.equals(startTime));
            assertNotNull(message.getSenderId());
            StaticBuffer content = message.getContent();
            assertTrue(content != null && content.length() > 0);
            TransactionLogHeader.Entry txentry = TransactionLogHeader.parse(content, serializer, times);
            Instant txTime = txentry.getHeader().getTimestamp();
            assertTrue(txTime.isBefore(msgTime) || txTime.equals(msgTime));
            assertTrue(txTime.isAfter(startTime) || txTime.equals(msgTime));
            long txid = txentry.getHeader().getId();
            assertTrue(txid > 0);
            for (TransactionLogHeader.Modification modification : txentry.getContentAsModifications(serializer)) {
                assertTrue(modification.state == Change.ADDED || modification.state == Change.REMOVED);
                userChangeCounter.get(modification.state).incrementAndGet();
            }
            userLogMsgCounter.incrementAndGet();
        }
    });
    Thread.sleep(4000);
    assertEquals(5, txMsgCounter.get(LogTxStatus.PRECOMMIT).get());
    assertEquals(4, txMsgCounter.get(LogTxStatus.PRIMARY_SUCCESS).get());
    assertEquals(1, txMsgCounter.get(LogTxStatus.COMPLETE_SUCCESS).get());
    assertEquals(4, userlogMeta.get());
    if (withLogFailure)
        assertEquals(4, txMsgCounter.get(LogTxStatus.SECONDARY_FAILURE).get());
    else
        assertEquals(4, txMsgCounter.get(LogTxStatus.SECONDARY_SUCCESS).get());
    //User-Log
    if (withLogFailure) {
        assertEquals(0, userLogMsgCounter.get());
    } else {
        assertEquals(4, userLogMsgCounter.get());
        assertEquals(7, userChangeCounter.get(Change.ADDED).get());
        assertEquals(4, userChangeCounter.get(Change.REMOVED).get());
    }
    clopen(option(VERBOSE_TX_RECOVERY), true);
    /*
        Transaction Recovery
         */
    TransactionRecovery recovery = TitanFactory.startTransactionRecovery(graph, startTime);
    /*
        Use user log processing framework
         */
    final AtomicInteger userLogCount = new AtomicInteger(0);
    LogProcessorFramework userlogs = TitanFactory.openTransactionLog(graph);
    userlogs.addLogProcessor(userlogName).setStartTime(startTime).setRetryAttempts(1).addProcessor(new ChangeProcessor() {

        @Override
        public void process(TitanTransaction tx, TransactionId txId, ChangeState changes) {
            assertEquals(instanceid, txId.getInstanceId());
            //Just some reasonable upper bound
            assertTrue(txId.getTransactionId() > 0 && txId.getTransactionId() < 100);
            final Instant txTime = txId.getTransactionTime();
            assertTrue(String.format("tx timestamp %s not between start %s and end time %s", txTime, startTime, endTime), //Times should be within a second
            (txTime.isAfter(startTime) || txTime.equals(startTime)) && (txTime.isBefore(endTime) || txTime.equals(endTime)));
            assertTrue(tx.containsRelationType("knows"));
            assertTrue(tx.containsRelationType("weight"));
            EdgeLabel knows = tx.getEdgeLabel("knows");
            PropertyKey weight = tx.getPropertyKey("weight");
            Instant txTimeMicro = txId.getTransactionTime();
            int txNo;
            if (txTimeMicro.isBefore(txTimes[1])) {
                txNo = 1;
                //v1 addition transaction
                assertEquals(1, Iterables.size(changes.getVertices(Change.ADDED)));
                assertEquals(0, Iterables.size(changes.getVertices(Change.REMOVED)));
                assertEquals(1, Iterables.size(changes.getVertices(Change.ANY)));
                assertEquals(2, Iterables.size(changes.getRelations(Change.ADDED)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.ADDED, knows)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.ADDED, weight)));
                assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
                assertEquals(0, Iterables.size(changes.getRelations(Change.REMOVED)));
                TitanVertex v = Iterables.getOnlyElement(changes.getVertices(Change.ADDED));
                assertEquals(v1id, getId(v));
                VertexProperty<Float> p = Iterables.getOnlyElement(changes.getProperties(v, Change.ADDED, "weight"));
                assertEquals(111.1, p.value().doubleValue(), 0.01);
                assertEquals(1, Iterables.size(changes.getEdges(v, Change.ADDED, OUT)));
                assertEquals(1, Iterables.size(changes.getEdges(v, Change.ADDED, BOTH)));
            } else if (txTimeMicro.isBefore(txTimes[2])) {
                txNo = 2;
                //v2 addition transaction
                assertEquals(1, Iterables.size(changes.getVertices(Change.ADDED)));
                assertEquals(0, Iterables.size(changes.getVertices(Change.REMOVED)));
                assertEquals(2, Iterables.size(changes.getVertices(Change.ANY)));
                assertEquals(2, Iterables.size(changes.getRelations(Change.ADDED)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.ADDED, knows)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.ADDED, weight)));
                assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
                assertEquals(0, Iterables.size(changes.getRelations(Change.REMOVED)));
                TitanVertex v = Iterables.getOnlyElement(changes.getVertices(Change.ADDED));
                assertEquals(v2id, getId(v));
                VertexProperty<Float> p = Iterables.getOnlyElement(changes.getProperties(v, Change.ADDED, "weight"));
                assertEquals(222.2, p.value().doubleValue(), 0.01);
                assertEquals(1, Iterables.size(changes.getEdges(v, Change.ADDED, OUT)));
                assertEquals(1, Iterables.size(changes.getEdges(v, Change.ADDED, BOTH)));
            } else if (txTimeMicro.isBefore(txTimes[3])) {
                txNo = 3;
                //v2 deletion transaction
                assertEquals(0, Iterables.size(changes.getVertices(Change.ADDED)));
                assertEquals(1, Iterables.size(changes.getVertices(Change.REMOVED)));
                assertEquals(2, Iterables.size(changes.getVertices(Change.ANY)));
                assertEquals(0, Iterables.size(changes.getRelations(Change.ADDED)));
                assertEquals(2, Iterables.size(changes.getRelations(Change.REMOVED)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.REMOVED, knows)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.REMOVED, weight)));
                assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
                TitanVertex v = Iterables.getOnlyElement(changes.getVertices(Change.REMOVED));
                assertEquals(v2id, getId(v));
                VertexProperty<Float> p = Iterables.getOnlyElement(changes.getProperties(v, Change.REMOVED, "weight"));
                assertEquals(222.2, p.value().doubleValue(), 0.01);
                assertEquals(1, Iterables.size(changes.getEdges(v, Change.REMOVED, OUT)));
                assertEquals(0, Iterables.size(changes.getEdges(v, Change.ADDED, BOTH)));
            } else {
                txNo = 4;
                //v1 edge modification
                assertEquals(0, Iterables.size(changes.getVertices(Change.ADDED)));
                assertEquals(0, Iterables.size(changes.getVertices(Change.REMOVED)));
                assertEquals(1, Iterables.size(changes.getVertices(Change.ANY)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.ADDED)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.REMOVED)));
                assertEquals(1, Iterables.size(changes.getRelations(Change.REMOVED, knows)));
                assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
                TitanVertex v = Iterables.getOnlyElement(changes.getVertices(Change.ANY));
                assertEquals(v1id, getId(v));
                TitanEdge e = Iterables.getOnlyElement(changes.getEdges(v, Change.REMOVED, Direction.OUT, "knows"));
                assertFalse(e.property("weight").isPresent());
                assertEquals(v, e.vertex(Direction.IN));
                e = Iterables.getOnlyElement(changes.getEdges(v, Change.ADDED, Direction.OUT, "knows"));
                assertEquals(44.4, e.<Float>value("weight").doubleValue(), 0.01);
                assertEquals(v, e.vertex(Direction.IN));
            }
            //See only current state of graph in transaction
            TitanVertex v1 = getV(tx, v1id);
            assertNotNull(v1);
            assertTrue(v1.isLoaded());
            if (txNo != 2) {
                //In the transaction that adds v2, v2 will be considered "loaded"
                assertMissing(tx, v2id);
            //                    assertTrue(txNo + " - " + v2, v2 == null || v2.isRemoved());
            }
            assertEquals(111.1, v1.<Float>value("weight").doubleValue(), 0.01);
            assertCount(1, v1.query().direction(Direction.OUT).edges());
            userLogCount.incrementAndGet();
        }
    }).build();
    //wait
    Thread.sleep(22000L);
    recovery.shutdown();
    long[] recoveryStats = ((StandardTransactionLogProcessor) recovery).getStatistics();
    if (withLogFailure) {
        assertEquals(1, recoveryStats[0]);
        assertEquals(4, recoveryStats[1]);
    } else {
        assertEquals(5, recoveryStats[0]);
        assertEquals(0, recoveryStats[1]);
    }
    userlogs.removeLogProcessor(userlogName);
    userlogs.shutdown();
    assertEquals(4, userLogCount.get());
}

Example 2 with TitanTransaction

use of com.thinkaurelius.titan.core.TitanTransaction in project titan by thinkaurelius.

the class TitanGraphTest method executeParallelTransactions.

private int executeParallelTransactions(final TransactionJob job, int number) {
    final CountDownLatch startLatch = new CountDownLatch(number);
    final CountDownLatch finishLatch = new CountDownLatch(number);
    final AtomicInteger txSuccess = new AtomicInteger(0);
    for (int i = 0; i < number; i++) {
        new Thread() {

            public void run() {
                awaitAllThreadsReady();
                TitanTransaction tx = graph.newTransaction();
                try {
                    job.run(tx);
                    tx.commit();
                    txSuccess.incrementAndGet();
                } catch (Exception ex) {
                    ex.printStackTrace();
                    if (tx.isOpen())
                        tx.rollback();
                } finally {
                    finishLatch.countDown();
                }
            }

            private void awaitAllThreadsReady() {
                startLatch.countDown();
                try {
                    startLatch.await();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }
    try {
        finishLatch.await(10000, TimeUnit.MILLISECONDS);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    return txSuccess.get();
}

Example 3 with TitanTransaction

use of com.thinkaurelius.titan.core.TitanTransaction in project titan by thinkaurelius.

the class TitanGraphTest method testConcurrentConsistencyEnforcement.

@Test
public void testConcurrentConsistencyEnforcement() throws Exception {
    PropertyKey name = mgmt.makePropertyKey("name").dataType(String.class).cardinality(Cardinality.SINGLE).make();
    TitanGraphIndex nameIndex = mgmt.buildIndex("name", Vertex.class).addKey(name).unique().buildCompositeIndex();
    mgmt.setConsistency(nameIndex, ConsistencyModifier.LOCK);
    EdgeLabel married = mgmt.makeEdgeLabel("married").multiplicity(Multiplicity.ONE2ONE).make();
    mgmt.setConsistency(married, ConsistencyModifier.LOCK);
    EdgeLabel friend = mgmt.makeEdgeLabel("friend").multiplicity(Multiplicity.MULTI).make();
    finishSchema();
    TitanVertex baseV = tx.addVertex("name", "base");
    newTx();
    final long baseVid = getId(baseV);
    final String nameA = "a", nameB = "b";
    final int parallelThreads = 4;
    final AtomicInteger totalExe = new AtomicInteger();
    int numSuccess = executeParallelTransactions(new TransactionJob() {

        @Override
        public void run(TitanTransaction tx) {
            TitanVertex a = tx.addVertex();
            TitanVertex base = getV(tx, baseVid);
            base.addEdge("married", a);
        }
    }, parallelThreads);
    assertTrue("At most 1 tx should succeed: " + numSuccess, numSuccess <= 1);
    numSuccess = executeParallelTransactions(new TransactionJob() {

        @Override
        public void run(TitanTransaction tx) {
            TitanVertex a = tx.addVertex("name", nameA);
            TitanVertex b = tx.addVertex("name", nameB);
            b.addEdge("friend", b);
        }
    }, parallelThreads);
    newTx();
    long numA = Iterables.size(tx.query().has("name", nameA).vertices());
    long numB = Iterables.size(tx.query().has("name", nameB).vertices());
    //        System.out.println(numA + " - " + numB);
    assertTrue("At most 1 tx should succeed: " + numSuccess, numSuccess <= 1);
    assertTrue(numA <= 1);
    assertTrue(numB <= 1);
}

Example 4 with TitanTransaction

use of com.thinkaurelius.titan.core.TitanTransaction in project titan by thinkaurelius.

the class TitanGraphIterativeBenchmark method loadData.

public void loadData(final int numVertices, final int numThreads) throws Exception {
    makeKey("w", Integer.class);
    PropertyKey time = makeKey("t", Long.class);
    ((StandardEdgeLabelMaker) mgmt.makeEdgeLabel("l")).sortKey(time).make();
    finishSchema();
    final int maxQueue = 1000;
    final int verticesPerTask = 1000;
    final int maxWeight = 10;
    final int maxTime = 10000;
    BlockingQueue<Runnable> tasks = new ArrayBlockingQueue<Runnable>(maxQueue);
    ExecutorService exe = Executors.newFixedThreadPool(numThreads);
    for (int i = 0; i < numVertices / verticesPerTask; i++) {
        while (tasks.size() >= maxQueue) Thread.sleep(maxQueue);
        assert tasks.size() < maxQueue;
        exe.submit(new Runnable() {

            @Override
            public void run() {
                TitanTransaction tx = graph.newTransaction();
                TitanVertex[] vs = new TitanVertex[verticesPerTask];
                for (int j = 0; j < verticesPerTask; j++) {
                    vs[j] = tx.addVertex();
                    vs[j].property(VertexProperty.Cardinality.single, "w", random.nextInt(maxWeight));
                }
                for (int j = 0; j < verticesPerTask * 10; j++) {
                    TitanEdge e = vs[random.nextInt(verticesPerTask)].addEdge("l", vs[random.nextInt(verticesPerTask)]);
                    e.property("t", random.nextInt(maxTime));
                }
                System.out.print(".");
                tx.commit();
            }
        });
    }
    exe.shutdown();
    exe.awaitTermination(numVertices / 1000, TimeUnit.SECONDS);
    if (!exe.isTerminated())
        System.err.println("Could not load data in time");
    System.out.println("Loaded " + numVertices + "vertices");
}

Example 5 with TitanTransaction

use of com.thinkaurelius.titan.core.TitanTransaction in project titan by thinkaurelius.

the class TitanGraphTest method failTransactionOnCommit.

private void failTransactionOnCommit(final TransactionJob job) {
    TitanTransaction tx = graph.newTransaction();
    try {
        job.run(tx);
        tx.commit();
        fail();
    } catch (Exception e) {
    //e.printStackTrace();
    } finally {
        if (tx.isOpen())
            tx.rollback();
    }
}