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Example 1 with LOG_BACKEND

use of org.janusgraph.graphdb.configuration.GraphDatabaseConfiguration.LOG_BACKEND in project janusgraph by JanusGraph.

the class JanusGraphTest 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();
    JanusGraphVertex n1 = tx.addVertex("weight", 10.5);
    tx.addProperties(knows, weight);
    newTx();
    final Instant[] txTimes = new Instant[4];
    // Transaction with custom user log name
    txTimes[0] = times.getTime();
    JanusGraphTransaction tx2 = graph.buildTransaction().logIdentifier(userLogName).start();
    JanusGraphVertex 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();
    JanusGraphVertex 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);
    final Edge e = Iterables.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);
    final Log transactionLog = openTxLog();
    final Log userLog = openUserLog(userLogName);
    final EnumMap<LogTxStatus, AtomicInteger> txMsgCounter = new EnumMap<>(LogTxStatus.class);
    for (final LogTxStatus status : LogTxStatus.values()) txMsgCounter.put(status, new AtomicInteger(0));
    final AtomicInteger userLogMeta = new AtomicInteger(0);
    transactionLog.registerReader(startMarker, new MessageReader() {

        @Override
        public void read(Message message) {
            final Instant msgTime = message.getTimestamp();
            assertTrue(msgTime.isAfter(startTime) || msgTime.equals(startTime));
            assertNotNull(message.getSenderId());
            final TransactionLogHeader.Entry txEntry = TransactionLogHeader.parse(message.getContent(), serializer, times);
            final 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));
            final LogTxStatus status = txEntry.getStatus();
            if (status == LogTxStatus.PRECOMMIT) {
                assertTrue(txEntry.hasContent());
                final 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) {
                    final 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();
        }

        @Override
        public void updateState() {
        }
    });
    final EnumMap<Change, AtomicInteger> userChangeCounter = new EnumMap<>(Change.class);
    for (final 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) {
            final Instant msgTime = message.getTimestamp();
            assertTrue(msgTime.isAfter(startTime) || msgTime.equals(startTime));
            assertNotNull(message.getSenderId());
            final StaticBuffer content = message.getContent();
            assertTrue(content != null && content.length() > 0);
            final TransactionLogHeader.Entry transactionEntry = TransactionLogHeader.parse(content, serializer, times);
            final Instant txTime = transactionEntry.getHeader().getTimestamp();
            assertTrue(txTime.isBefore(msgTime) || txTime.equals(msgTime));
            assertTrue(txTime.isAfter(startTime) || txTime.equals(msgTime));
            final long transactionId = transactionEntry.getHeader().getId();
            assertTrue(transactionId > 0);
            transactionEntry.getContentAsModifications(serializer).forEach(modification -> {
                assertTrue(modification.state == Change.ADDED || modification.state == Change.REMOVED);
                userChangeCounter.get(modification.state).incrementAndGet();
            });
            userLogMsgCounter.incrementAndGet();
        }

        @Override
        public void updateState() {
        }
    });
    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
         */
    final TransactionRecovery recovery = JanusGraphFactory.startTransactionRecovery(graph, startTime);
    /*
        Use user log processing framework
         */
    final AtomicInteger userLogCount = new AtomicInteger(0);
    final LogProcessorFramework userLogs = JanusGraphFactory.openTransactionLog(graph);
    userLogs.addLogProcessor(userLogName).setStartTime(startTime).setRetryAttempts(1).addProcessor((tx, txId, changes) -> {
        assertEquals(instanceId, txId.getInstanceId());
        // Just some reasonable upper bound
        assertTrue(txId.getTransactionId() > 0 && txId.getTransactionId() < 100);
        final Instant txTime = txId.getTransactionTime();
        // Times should be within a second
        assertTrue((txTime.isAfter(startTime) || txTime.equals(startTime)) && (txTime.isBefore(endTime) || txTime.equals(endTime)), String.format("tx timestamp %s not between start %s and end time %s", txTime, startTime, endTime));
        assertTrue(tx.containsRelationType("knows"));
        assertTrue(tx.containsRelationType("weight"));
        final EdgeLabel knows1 = tx.getEdgeLabel("knows");
        final PropertyKey weight1 = 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, knows1)));
            assertEquals(1, Iterables.size(changes.getRelations(Change.ADDED, weight1)));
            assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
            assertEquals(0, Iterables.size(changes.getRelations(Change.REMOVED)));
            final JanusGraphVertex v = Iterables.getOnlyElement(changes.getVertices(Change.ADDED));
            assertEquals(v1id, getId(v));
            final 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, knows1)));
            assertEquals(1, Iterables.size(changes.getRelations(Change.ADDED, weight1)));
            assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
            assertEquals(0, Iterables.size(changes.getRelations(Change.REMOVED)));
            final JanusGraphVertex v = Iterables.getOnlyElement(changes.getVertices(Change.ADDED));
            assertEquals(v2id, getId(v));
            final 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, knows1)));
            assertEquals(1, Iterables.size(changes.getRelations(Change.REMOVED, weight1)));
            assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
            final JanusGraphVertex v = Iterables.getOnlyElement(changes.getVertices(Change.REMOVED));
            assertEquals(v2id, getId(v));
            final 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, knows1)));
            assertEquals(2, Iterables.size(changes.getRelations(Change.ANY)));
            final JanusGraphVertex v = Iterables.getOnlyElement(changes.getVertices(Change.ANY));
            assertEquals(v1id, getId(v));
            JanusGraphEdge e1 = Iterables.getOnlyElement(changes.getEdges(v, Change.REMOVED, Direction.OUT, "knows"));
            assertFalse(e1.property("weight").isPresent());
            assertEquals(v, e1.vertex(Direction.IN));
            e1 = Iterables.getOnlyElement(changes.getEdges(v, Change.ADDED, Direction.OUT, "knows"));
            assertEquals(44.4, e1.<Float>value("weight").doubleValue(), 0.01);
            assertEquals(v, e1.vertex(Direction.IN));
        }
        // See only current state of graph in transaction
        final JanusGraphVertex v11 = getV(tx, v1id);
        assertNotNull(v11);
        assertTrue(v11.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, v11.<Float>value("weight").doubleValue(), 0.01);
        assertCount(1, v11.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());
}
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Aggregations

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