Examples with LogFiles org.neo4j.kernel.impl.transaction.log.files.LogFiles used on opensource projects

Example 31 with LogFiles

use of org.neo4j.kernel.impl.transaction.log.files.LogFiles in project neo4j by neo4j.

the class DumpCommandIT method databaseThatRequireRecoveryIsNotDumpable.

@Test
void databaseThatRequireRecoveryIsNotDumpable() throws IOException {
    LogFiles logFiles = LogFilesBuilder.builder(databaseLayout, testDirectory.getFileSystem()).withLogVersionRepository(new SimpleLogVersionRepository()).withTransactionIdStore(new SimpleTransactionIdStore()).withCommandReaderFactory(StorageEngineFactory.defaultStorageEngine().commandReaderFactory()).withStoreId(StoreId.UNKNOWN).build();
    try (Lifespan ignored = new Lifespan(logFiles)) {
        LogFile logFile = logFiles.getLogFile();
        LogEntryWriter writer = logFile.getTransactionLogWriter().getWriter();
        writer.writeStartEntry(0x123456789ABCDEFL, logFile.getLogFileInformation().getLastEntryId() + 1, BASE_TX_CHECKSUM, new byte[] { 0 });
    }
    CommandFailedException commandFailed = assertThrows(CommandFailedException.class, () -> execute("foo"));
    assertThat(commandFailed.getMessage()).startsWith("Active logical log detected, this might be a source of inconsistencies.");
}

Example 32 with LogFiles

use of org.neo4j.kernel.impl.transaction.log.files.LogFiles in project neo4j by neo4j.

the class MissingStoreFilesRecoveryIT method prepareDatabaseWithTwoTxLogFiles.

private LogFiles prepareDatabaseWithTwoTxLogFiles() throws IOException {
    managementService = serviceBuilder.build();
    var databaseApi = defaultDatabase(managementService);
    LogFiles logFiles = rotateTransactionLogs(databaseApi);
    assertNotNull(logFiles.getLogFile().getLogFileForVersion(1));
    createSomeData(databaseApi);
    managementService.shutdown();
    return logFiles;
}

Example 33 with LogFiles

use of org.neo4j.kernel.impl.transaction.log.files.LogFiles in project neo4j by neo4j.

the class RecoveryCorruptedTransactionLogIT method generateTransactionsAndRotate.

private static void generateTransactionsAndRotate(GraphDatabaseAPI database, int logFilesToGenerate, boolean checkpoint) throws IOException {
    DependencyResolver resolver = database.getDependencyResolver();
    LogFiles logFiles = resolver.resolveDependency(LogFiles.class);
    CheckPointer checkpointer = resolver.resolveDependency(CheckPointer.class);
    while (logFiles.getLogFile().getHighestLogVersion() < logFilesToGenerate) {
        logFiles.getLogFile().rotate();
        generateTransaction(database);
        if (checkpoint) {
            checkpointer.forceCheckPoint(new SimpleTriggerInfo("testForcedCheckpoint"));
        }
    }
}

Example 34 with LogFiles

use of org.neo4j.kernel.impl.transaction.log.files.LogFiles in project neo4j by neo4j.

the class RecoveryCorruptedTransactionLogIT method addCorruptedCommandsToLastLogFile.

private void addCorruptedCommandsToLastLogFile(LogEntryWriterWrapper logEntryWriterWrapper) throws IOException {
    PositiveLogFilesBasedLogVersionRepository versionRepository = new PositiveLogFilesBasedLogVersionRepository(logFiles);
    LogFiles internalLogFiles = LogFilesBuilder.builder(databaseLayout, fileSystem).withLogVersionRepository(versionRepository).withTransactionIdStore(new SimpleTransactionIdStore()).withStoreId(StoreId.UNKNOWN).withCommandReaderFactory(StorageEngineFactory.defaultStorageEngine().commandReaderFactory()).build();
    try (Lifespan lifespan = new Lifespan(internalLogFiles)) {
        LogFile transactionLogFile = internalLogFiles.getLogFile();
        LogEntryWriter<FlushablePositionAwareChecksumChannel> realLogEntryWriter = transactionLogFile.getTransactionLogWriter().getWriter();
        LogEntryWriter<FlushablePositionAwareChecksumChannel> wrappedLogEntryWriter = logEntryWriterWrapper.wrap(realLogEntryWriter);
        StaticLogEntryWriterFactory<FlushablePositionAwareChecksumChannel> factory = new StaticLogEntryWriterFactory<>(wrappedLogEntryWriter);
        TransactionLogWriter writer = new TransactionLogWriter(realLogEntryWriter.getChannel(), factory);
        List<StorageCommand> commands = new ArrayList<>();
        commands.add(new Command.PropertyCommand(new PropertyRecord(1), new PropertyRecord(2)));
        commands.add(new Command.NodeCommand(new NodeRecord(2), new NodeRecord(3)));
        PhysicalTransactionRepresentation transaction = new PhysicalTransactionRepresentation(commands);
        transaction.setHeader(new byte[0], 0, 0, 0, 0, ANONYMOUS);
        writer.append(transaction, 1000, BASE_TX_CHECKSUM);
    }
}

Example 35 with LogFiles

use of org.neo4j.kernel.impl.transaction.log.files.LogFiles in project neo4j by neo4j.

the class LogVersionUpgradeCheckerIT method appendCheckpoint.

private void appendCheckpoint(byte logEntryVersion, boolean removeCheckpointFile) throws IOException {
    VersionAwareLogEntryReader logEntryReader = new VersionAwareLogEntryReader(StorageEngineFactory.defaultStorageEngine().commandReaderFactory());
    LogFiles logFiles = LogFilesBuilder.activeFilesBuilder(databaseLayout, fileSystem, pageCache).withLogEntryReader(logEntryReader).withStoreId(StoreId.UNKNOWN).build();
    if (removeCheckpointFile) {
        for (Path file : fileSystem.listFiles(logFiles.logFilesDirectory(), path -> path.getFileName().toString().startsWith(CHECKPOINT_FILE_PREFIX))) {
            fileSystem.deleteFile(file);
        }
    }
    try (Lifespan lifespan = new Lifespan(logFiles)) {
        LogFile logFile = logFiles.getLogFile();
        TransactionLogWriter transactionLogWriter = logFile.getTransactionLogWriter();
        var channel = transactionLogWriter.getChannel();
        LogPosition logPosition = transactionLogWriter.getCurrentPosition();
        // Fake record
        channel.put(logEntryVersion).put(LEGACY_CHECK_POINT).putLong(logPosition.getLogVersion()).putLong(logPosition.getByteOffset());
        logFile.flush();
    }
}