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

Example 26 with LogFiles

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

the class RecoveryIT method countCheckPointsInTransactionLogs.

private int countCheckPointsInTransactionLogs() throws IOException {
    LogFiles logFiles = buildLogFiles();
    var checkpoints = logFiles.getCheckpointFile().reachableCheckpoints();
    return checkpoints.size();
}

Example 27 with LogFiles

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

the class LogPruningIT method pruningStrategyShouldBeDynamic.

@Test
void pruningStrategyShouldBeDynamic() throws IOException {
    LogFiles logFiles = LogFilesBuilder.builder(db.databaseLayout(), fs).withLogVersionRepository(new SimpleLogVersionRepository()).withLastCommittedTransactionIdSupplier(() -> 1).withCommandReaderFactory(db.getDependencyResolver().resolveDependency(StorageEngineFactory.class).commandReaderFactory()).withTransactionIdStore(new SimpleTransactionIdStore()).build();
    // Force transaction log rotation
    writeTransactionsAndRotateTwice();
    // Checkpoint to make sure strategy is evaluated
    checkPointer.forceCheckPoint(triggerInfo);
    // Make sure file is still there since we have disable pruning. 3 transaction logs and 1 separate checkpoint file.
    assertThat(countTransactionLogs(logFiles)).isEqualTo(4);
    // Change pruning to true
    config.setDynamic(keep_logical_logs, FALSE, "LogPruningIT");
    // Checkpoint to make sure strategy is evaluated
    checkPointer.forceCheckPoint(triggerInfo);
    // Make sure file is removed
    assertThat(countTransactionLogs(logFiles)).isEqualTo(3);
}

Example 28 with LogFiles

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

the class MissingStoreFilesRecoveryIT method failToStartOnMissingFilesAndPartialTransactionLogs.

@Test
void failToStartOnMissingFilesAndPartialTransactionLogs() throws IOException {
    LogFiles logFiles = prepareDatabaseWithTwoTxLogFiles();
    fileSystem.deleteFile(logFiles.getLogFile().getLogFileForVersion(0));
    fileSystem.deleteFile(databaseLayout.nodeStore());
    var dbStateService = getDatabaseStateService();
    var failure = dbStateService.causeOfFailure(defaultNamedDatabaseId);
    assertFalse(failure.isPresent());
    assertFalse(fileSystem.fileExists(databaseLayout.nodeStore()));
}

Example 29 with LogFiles

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

the class MissingStoreFilesRecoveryIT method rotateTransactionLogs.

private static LogFiles rotateTransactionLogs(GraphDatabaseAPI databaseApi) throws IOException {
    LogFiles logFiles = databaseApi.getDependencyResolver().resolveDependency(LogFiles.class);
    LogFile logFile = logFiles.getLogFile();
    logFile.rotate();
    return logFiles;
}

Example 30 with LogFiles

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

the class Runner method call.

@Override
public Long call() throws Exception {
    long lastCommittedTransactionId;
    try (FileSystemAbstraction fileSystem = new DefaultFileSystemAbstraction();
        Lifespan life = new Lifespan()) {
        TransactionIdStore transactionIdStore = new SimpleTransactionIdStore();
        TransactionMetadataCache transactionMetadataCache = new TransactionMetadataCache();
        LogFiles logFiles = life.add(createLogFiles(transactionIdStore, fileSystem));
        TransactionAppender transactionAppender = life.add(createBatchingTransactionAppender(transactionIdStore, transactionMetadataCache, logFiles));
        ExecutorService executorService = Executors.newFixedThreadPool(threads);
        try {
            List<Future<?>> handlers = new ArrayList<>(threads);
            for (int i = 0; i < threads; i++) {
                TransactionRepresentationFactory factory = new TransactionRepresentationFactory();
                Worker task = new Worker(transactionAppender, factory, condition);
                handlers.add(executorService.submit(task));
            }
            // wait for all the workers to complete
            Futures.getAll(handlers);
        } finally {
            executorService.shutdown();
        }
        lastCommittedTransactionId = transactionIdStore.getLastCommittedTransactionId();
    }
    return lastCommittedTransactionId;
}