Examples with BatchImporter org.neo4j.internal.batchimport.BatchImporter used on opensource projects

Example 1 with BatchImporter

use of org.neo4j.internal.batchimport.BatchImporter in project neo4j by neo4j.

the class MultipleIndexPopulationStressIT method createRandomData.

private void createRandomData(long nodeCount, long relCount) throws Exception {
    Config config = Config.defaults(neo4j_home, directory.homePath());
    RecordFormats recordFormats = RecordFormatSelector.selectForConfig(config, NullLogProvider.getInstance());
    try (RandomDataInput input = new RandomDataInput(nodeCount, relCount);
        JobScheduler jobScheduler = new ThreadPoolJobScheduler()) {
        DatabaseLayout layout = Neo4jLayout.of(directory.homePath()).databaseLayout(DEFAULT_DATABASE_NAME);
        IndexImporterFactory indexImporterFactory = new IndexImporterFactoryImpl(config);
        BatchImporter importer = new ParallelBatchImporter(layout, fileSystemAbstraction, PageCacheTracer.NULL, DEFAULT, NullLogService.getInstance(), ExecutionMonitor.INVISIBLE, EMPTY, config, recordFormats, NO_MONITOR, jobScheduler, Collector.EMPTY, TransactionLogInitializer.getLogFilesInitializer(), indexImporterFactory, INSTANCE);
        importer.doImport(input);
    }
}

Example 2 with BatchImporter

use of org.neo4j.internal.batchimport.BatchImporter in project neo4j by neo4j.

the class QuickImport method main.

public static void main(String[] arguments) throws IOException {
    Args args = Args.parse(arguments);
    long nodeCount = parseLongWithUnit(args.get("nodes", null));
    long relationshipCount = parseLongWithUnit(args.get("relationships", null));
    int labelCount = args.getNumber("labels", 4).intValue();
    int relationshipTypeCount = args.getNumber("relationship-types", 4).intValue();
    Path dir = Path.of(args.get("into"));
    long randomSeed = args.getNumber("random-seed", currentTimeMillis()).longValue();
    Configuration config = Configuration.COMMAS;
    Extractors extractors = new Extractors(config.arrayDelimiter());
    IdType idType = IdType.valueOf(args.get("id-type", IdType.INTEGER.name()));
    Groups groups = new Groups();
    Header nodeHeader = parseNodeHeader(args, idType, extractors, groups);
    Header relationshipHeader = parseRelationshipHeader(args, idType, extractors, groups);
    Config dbConfig;
    String dbConfigFileName = args.get("db-config", null);
    if (dbConfigFileName != null) {
        dbConfig = Config.newBuilder().fromFile(Path.of(dbConfigFileName)).build();
    } else {
        dbConfig = Config.defaults();
    }
    Boolean highIo = args.has("high-io") ? args.getBoolean("high-io") : null;
    LogProvider logging = NullLogProvider.getInstance();
    long pageCacheMemory = args.getNumber("pagecache-memory", org.neo4j.internal.batchimport.Configuration.MAX_PAGE_CACHE_MEMORY).longValue();
    org.neo4j.internal.batchimport.Configuration importConfig = new org.neo4j.internal.batchimport.Configuration.Overridden(defaultConfiguration(dir)) {

        @Override
        public int maxNumberOfProcessors() {
            return args.getNumber("processors", super.maxNumberOfProcessors()).intValue();
        }

        @Override
        public boolean highIO() {
            return highIo != null ? highIo : super.highIO();
        }

        @Override
        public long pageCacheMemory() {
            return pageCacheMemory;
        }

        @Override
        public long maxMemoryUsage() {
            String custom = args.get("max-memory", null);
            return custom != null ? parseMaxMemory(custom) : super.maxMemoryUsage();
        }

        @Override
        public IndexConfig indexConfig() {
            return IndexConfig.create().withLabelIndex().withRelationshipTypeIndex();
        }
    };
    float factorBadNodeData = args.getNumber("factor-bad-node-data", 0).floatValue();
    float factorBadRelationshipData = args.getNumber("factor-bad-relationship-data", 0).floatValue();
    Input input = new DataGeneratorInput(nodeCount, relationshipCount, idType, randomSeed, 0, nodeHeader, relationshipHeader, labelCount, relationshipTypeCount, factorBadNodeData, factorBadRelationshipData);
    try (FileSystemAbstraction fileSystem = new DefaultFileSystemAbstraction();
        Lifespan life = new Lifespan()) {
        BatchImporter consumer;
        if (args.getBoolean("to-csv")) {
            consumer = new CsvOutput(dir, nodeHeader, relationshipHeader, config);
        } else {
            System.out.println("Seed " + randomSeed);
            final JobScheduler jobScheduler = life.add(createScheduler());
            boolean verbose = args.getBoolean("v");
            ExecutionMonitor monitor = verbose ? new SpectrumExecutionMonitor(2, TimeUnit.SECONDS, System.out, 100) : defaultVisible();
            consumer = BatchImporterFactory.withHighestPriority().instantiate(DatabaseLayout.ofFlat(dir), fileSystem, PageCacheTracer.NULL, importConfig, new SimpleLogService(logging, logging), monitor, EMPTY, dbConfig, RecordFormatSelector.selectForConfig(dbConfig, logging), NO_MONITOR, jobScheduler, Collector.EMPTY, TransactionLogInitializer.getLogFilesInitializer(), new IndexImporterFactoryImpl(dbConfig), INSTANCE);
        }
        consumer.doImport(input);
    }
}

Example 3 with BatchImporter

use of org.neo4j.internal.batchimport.BatchImporter in project neo4j by neo4j.

the class CsvImporter method doImport.

private void doImport(Input input, Collector badCollector) {
    boolean success = false;
    Path internalLogFile = databaseConfig.get(store_internal_log_path);
    try (JobScheduler jobScheduler = createInitialisedScheduler();
        OutputStream outputStream = FileSystemUtils.createOrOpenAsOutputStream(fileSystem, internalLogFile, true);
        Log4jLogProvider logProvider = Util.configuredLogProvider(databaseConfig, outputStream)) {
        ExecutionMonitor executionMonitor = verbose ? new SpectrumExecutionMonitor(2, TimeUnit.SECONDS, stdOut, SpectrumExecutionMonitor.DEFAULT_WIDTH) : ExecutionMonitors.defaultVisible();
        BatchImporter importer = BatchImporterFactory.withHighestPriority().instantiate(databaseLayout, fileSystem, pageCacheTracer, importConfig, new SimpleLogService(NullLogProvider.getInstance(), logProvider), executionMonitor, EMPTY, databaseConfig, RecordFormatSelector.selectForConfig(databaseConfig, logProvider), new PrintingImportLogicMonitor(stdOut, stdErr), jobScheduler, badCollector, TransactionLogInitializer.getLogFilesInitializer(), new IndexImporterFactoryImpl(databaseConfig), memoryTracker);
        printOverview(databaseLayout.databaseDirectory(), nodeFiles, relationshipFiles, importConfig, stdOut);
        importer.doImport(input);
        success = true;
    } catch (Exception e) {
        throw andPrintError("Import error", e, verbose, stdErr);
    } finally {
        long numberOfBadEntries = badCollector.badEntries();
        if (reportFile != null) {
            if (numberOfBadEntries > 0) {
                stdOut.println("There were bad entries which were skipped and logged into " + reportFile.toAbsolutePath());
            }
        }
        if (!success) {
            stdErr.println("WARNING Import failed. The store files in " + databaseLayout.databaseDirectory().toAbsolutePath() + " are left as they are, although they are likely in an unusable state. " + "Starting a database on these store files will likely fail or observe inconsistent records so " + "start at your own risk or delete the store manually");
        }
    }
}

Example 4 with BatchImporter

use of org.neo4j.internal.batchimport.BatchImporter in project neo4j by neo4j.

the class CsvInputBatchImportIT method shouldImportDataComingFromCsvFiles.

@Test
void shouldImportDataComingFromCsvFiles() throws Exception {
    // GIVEN
    Config dbConfig = Config.newBuilder().set(db_timezone, LogTimeZone.SYSTEM).set(dense_node_threshold, 5).build();
    try (JobScheduler scheduler = new ThreadPoolJobScheduler()) {
        BatchImporter importer = new ParallelBatchImporter(databaseLayout, fileSystem, PageCacheTracer.NULL, smallBatchSizeConfig(), NullLogService.getInstance(), ExecutionMonitor.INVISIBLE, EMPTY, dbConfig, defaultFormat(), ImportLogic.NO_MONITOR, scheduler, Collector.EMPTY, TransactionLogInitializer.getLogFilesInitializer(), new IndexImporterFactoryImpl(dbConfig), INSTANCE);
        List<InputEntity> nodeData = randomNodeData();
        List<InputEntity> relationshipData = randomRelationshipData(nodeData);
        // WHEN
        importer.doImport(csv(nodeDataAsFile(nodeData), relationshipDataAsFile(relationshipData), IdType.STRING, lowBufferSize(COMMAS)));
        // THEN
        verifyImportedData(nodeData, relationshipData);
    }
}