Examples with LogService org.neo4j.kernel.impl.logging.LogService used on opensource projects

Example 16 with LogService

use of org.neo4j.kernel.impl.logging.LogService in project neo4j by neo4j.

the class ImportTool method doImport.

public static void doImport(PrintStream out, PrintStream err, File storeDir, File logsDir, File badFile, FileSystemAbstraction fs, Collection<Option<File[]>> nodesFiles, Collection<Option<File[]>> relationshipsFiles, boolean enableStacktrace, Input input, Config dbConfig, OutputStream badOutput, org.neo4j.unsafe.impl.batchimport.Configuration configuration) throws IOException {
    boolean success;
    LifeSupport life = new LifeSupport();
    LogService logService = life.add(StoreLogService.inLogsDirectory(fs, logsDir));
    life.start();
    //TODO: add file watcher here?
    BatchImporter importer = new ParallelBatchImporter(storeDir, fs, configuration, logService, ExecutionMonitors.defaultVisible(), dbConfig);
    printOverview(storeDir, nodesFiles, relationshipsFiles, configuration, out);
    success = false;
    try {
        importer.doImport(input);
        success = true;
    } catch (Exception e) {
        throw andPrintError("Import error", e, enableStacktrace, err);
    } finally {
        Collector collector = input.badCollector();
        int numberOfBadEntries = collector.badEntries();
        collector.close();
        badOutput.close();
        if (numberOfBadEntries > 0) {
            out.println("There were bad entries which were skipped and logged into " + badFile.getAbsolutePath());
        }
        life.shutdown();
        if (!success) {
            try {
                StoreFile.fileOperation(FileOperation.DELETE, fs, storeDir, null, Iterables.<StoreFile, StoreFile>iterable(StoreFile.values()), false, ExistingTargetStrategy.FAIL, StoreFileType.values());
            } catch (IOException e) {
                err.println("Unable to delete store files after an aborted import " + e);
                if (enableStacktrace) {
                    e.printStackTrace();
                }
            }
        }
    }
}

Example 17 with LogService

use of org.neo4j.kernel.impl.logging.LogService in project neo4j by neo4j.

the class StoreMigrator method migrateWithBatchImporter.

private void migrateWithBatchImporter(File storeDir, File migrationDir, long lastTxId, long lastTxChecksum, long lastTxLogVersion, long lastTxLogByteOffset, MigrationProgressMonitor.Section progressMonitor, RecordFormats oldFormat, RecordFormats newFormat) throws IOException {
    prepareBatchImportMigration(storeDir, migrationDir, oldFormat, newFormat);
    boolean requiresDynamicStoreMigration = !newFormat.dynamic().equals(oldFormat.dynamic());
    boolean requiresPropertyMigration = !newFormat.property().equals(oldFormat.property()) || requiresDynamicStoreMigration;
    File badFile = new File(storeDir, Configuration.BAD_FILE_NAME);
    try (NeoStores legacyStore = instantiateLegacyStore(oldFormat, storeDir);
        RecordCursors nodeInputCursors = new RecordCursors(legacyStore);
        RecordCursors relationshipInputCursors = new RecordCursors(legacyStore);
        OutputStream badOutput = new BufferedOutputStream(new FileOutputStream(badFile, false))) {
        Configuration importConfig = new Configuration.Overridden(config);
        AdditionalInitialIds additionalInitialIds = readAdditionalIds(lastTxId, lastTxChecksum, lastTxLogVersion, lastTxLogByteOffset);
        // We have to make sure to keep the token ids if we're migrating properties/labels
        BatchImporter importer = new ParallelBatchImporter(migrationDir.getAbsoluteFile(), fileSystem, pageCache, importConfig, logService, withDynamicProcessorAssignment(migrationBatchImporterMonitor(legacyStore, progressMonitor, importConfig), importConfig), additionalInitialIds, config, newFormat);
        InputIterable<InputNode> nodes = legacyNodesAsInput(legacyStore, requiresPropertyMigration, nodeInputCursors);
        InputIterable<InputRelationship> relationships = legacyRelationshipsAsInput(legacyStore, requiresPropertyMigration, relationshipInputCursors);
        importer.doImport(Inputs.input(nodes, relationships, IdMappers.actual(), IdGenerators.fromInput(), Collectors.badCollector(badOutput, 0)));
        // During migration the batch importer doesn't necessarily writes all entities, depending on
        // which stores needs migration. Node, relationship, relationship group stores are always written
        // anyways and cannot be avoided with the importer, but delete the store files that weren't written
        // (left empty) so that we don't overwrite those in the real store directory later.
        Collection<StoreFile> storesToDeleteFromMigratedDirectory = new ArrayList<>();
        storesToDeleteFromMigratedDirectory.add(StoreFile.NEO_STORE);
        if (!requiresPropertyMigration) {
            // We didn't migrate properties, so the property stores in the migrated store are just empty/bogus
            storesToDeleteFromMigratedDirectory.addAll(asList(StoreFile.PROPERTY_STORE, StoreFile.PROPERTY_STRING_STORE, StoreFile.PROPERTY_ARRAY_STORE));
        }
        if (!requiresDynamicStoreMigration) {
            // We didn't migrate labels (dynamic node labels) or any other dynamic store
            storesToDeleteFromMigratedDirectory.addAll(asList(StoreFile.NODE_LABEL_STORE, StoreFile.LABEL_TOKEN_STORE, StoreFile.LABEL_TOKEN_NAMES_STORE, StoreFile.RELATIONSHIP_TYPE_TOKEN_STORE, StoreFile.RELATIONSHIP_TYPE_TOKEN_NAMES_STORE, StoreFile.PROPERTY_KEY_TOKEN_STORE, StoreFile.PROPERTY_KEY_TOKEN_NAMES_STORE, StoreFile.SCHEMA_STORE));
        }
        StoreFile.fileOperation(DELETE, fileSystem, migrationDir, null, storesToDeleteFromMigratedDirectory, true, null, StoreFileType.values());
        // When migrating on a block device there might be some files only accessible via the page cache.
        try {
            Predicate<FileHandle> fileHandlePredicate = fileHandle -> storesToDeleteFromMigratedDirectory.stream().anyMatch(storeFile -> storeFile.fileName(StoreFileType.STORE).equals(fileHandle.getFile().getName()));
            pageCache.streamFilesRecursive(migrationDir).filter(fileHandlePredicate).forEach(FileHandle.HANDLE_DELETE);
        } catch (NoSuchFileException e) {
        // This means that we had no files only present in the page cache, this is fine.
        }
    }
}

Example 18 with LogService

use of org.neo4j.kernel.impl.logging.LogService in project neo4j by neo4j.

the class StoreMigratorIT method shouldBeAbleToResumeMigrationOnMoving.

@Test
public void shouldBeAbleToResumeMigrationOnMoving() throws Exception {
    // GIVEN a legacy database
    File storeDirectory = directory.graphDbDir();
    File prepare = directory.directory("prepare");
    MigrationTestUtils.prepareSampleLegacyDatabase(version, fs, storeDirectory, prepare);
    // and a state of the migration saying that it has done the actual migration
    LogService logService = NullLogService.getInstance();
    PageCache pageCache = pageCacheRule.getPageCache(fs);
    UpgradableDatabase upgradableDatabase = new UpgradableDatabase(fs, new StoreVersionCheck(pageCache), new LegacyStoreVersionCheck(fs), selectFormat());
    String versionToMigrateFrom = upgradableDatabase.checkUpgradeable(storeDirectory).storeVersion();
    SilentMigrationProgressMonitor progressMonitor = new SilentMigrationProgressMonitor();
    StoreMigrator migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    File migrationDir = new File(storeDirectory, StoreUpgrader.MIGRATION_DIRECTORY);
    fs.mkdirs(migrationDir);
    migrator.migrate(storeDirectory, migrationDir, progressMonitor.startSection("section"), versionToMigrateFrom, upgradableDatabase.currentVersion());
    // WHEN simulating resuming the migration
    progressMonitor = new SilentMigrationProgressMonitor();
    migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    migrator.moveMigratedFiles(migrationDir, storeDirectory, versionToMigrateFrom, upgradableDatabase.currentVersion());
    // THEN starting the new store should be successful
    StoreFactory storeFactory = new StoreFactory(storeDirectory, pageCache, fs, logService.getInternalLogProvider());
    storeFactory.openAllNeoStores().close();
}

Example 19 with LogService

use of org.neo4j.kernel.impl.logging.LogService in project neo4j by neo4j.

the class StoreMigratorIT method shouldComputeTheLastTxLogPositionCorrectly.

@Test
public void shouldComputeTheLastTxLogPositionCorrectly() throws Throwable {
    // GIVEN a legacy database
    File storeDirectory = directory.graphDbDir();
    File prepare = directory.directory("prepare");
    MigrationTestUtils.prepareSampleLegacyDatabase(version, fs, storeDirectory, prepare);
    // and a state of the migration saying that it has done the actual migration
    LogService logService = NullLogService.getInstance();
    PageCache pageCache = pageCacheRule.getPageCache(fs);
    UpgradableDatabase upgradableDatabase = new UpgradableDatabase(fs, new StoreVersionCheck(pageCache), new LegacyStoreVersionCheck(fs), selectFormat());
    String versionToMigrateFrom = upgradableDatabase.checkUpgradeable(storeDirectory).storeVersion();
    SilentMigrationProgressMonitor progressMonitor = new SilentMigrationProgressMonitor();
    StoreMigrator migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    File migrationDir = new File(storeDirectory, StoreUpgrader.MIGRATION_DIRECTORY);
    fs.mkdirs(migrationDir);
    // WHEN migrating
    migrator.migrate(storeDirectory, migrationDir, progressMonitor.startSection("section"), versionToMigrateFrom, upgradableDatabase.currentVersion());
    // THEN it should compute the correct last tx log position
    assertEquals(expectedLogPosition, migrator.readLastTxLogPosition(migrationDir));
}

Example 20 with LogService

use of org.neo4j.kernel.impl.logging.LogService in project neo4j by neo4j.

the class StoreMigratorIT method shouldBeAbleToResumeMigrationOnRebuildingCounts.

@Test
public void shouldBeAbleToResumeMigrationOnRebuildingCounts() throws Exception {
    // GIVEN a legacy database
    File storeDirectory = directory.graphDbDir();
    File prepare = directory.directory("prepare");
    MigrationTestUtils.prepareSampleLegacyDatabase(version, fs, storeDirectory, prepare);
    // and a state of the migration saying that it has done the actual migration
    LogService logService = NullLogService.getInstance();
    PageCache pageCache = pageCacheRule.getPageCache(fs);
    UpgradableDatabase upgradableDatabase = new UpgradableDatabase(fs, new StoreVersionCheck(pageCache), new LegacyStoreVersionCheck(fs), selectFormat());
    String versionToMigrateFrom = upgradableDatabase.checkUpgradeable(storeDirectory).storeVersion();
    SilentMigrationProgressMonitor progressMonitor = new SilentMigrationProgressMonitor();
    StoreMigrator migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    File migrationDir = new File(storeDirectory, StoreUpgrader.MIGRATION_DIRECTORY);
    fs.mkdirs(migrationDir);
    migrator.migrate(storeDirectory, migrationDir, progressMonitor.startSection("section"), versionToMigrateFrom, upgradableDatabase.currentVersion());
    migrator.moveMigratedFiles(migrationDir, storeDirectory, versionToMigrateFrom, upgradableDatabase.currentVersion());
    // WHEN simulating resuming the migration
    progressMonitor = new SilentMigrationProgressMonitor();
    migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    migrator.rebuildCounts(storeDirectory, versionToMigrateFrom, upgradableDatabase.currentVersion());
    // THEN starting the new store should be successful
    StoreFactory storeFactory = new StoreFactory(storeDirectory, pageCache, fs, logService.getInternalLogProvider());
    storeFactory.openAllNeoStores().close();
}