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

Example 1 with PhysicalLogFileInformation

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

the class NeoStoreDataSource method buildTransactionLogs.

private NeoStoreTransactionLogModule buildTransactionLogs(File storeDir, Config config, LogProvider logProvider, JobScheduler scheduler, FileSystemAbstraction fileSystemAbstraction, StorageEngine storageEngine, LogEntryReader<ReadableClosablePositionAwareChannel> logEntryReader, SynchronizedArrayIdOrderingQueue legacyIndexTransactionOrdering, TransactionIdStore transactionIdStore, LogVersionRepository logVersionRepository) {
    TransactionMetadataCache transactionMetadataCache = new TransactionMetadataCache(100_000);
    LogHeaderCache logHeaderCache = new LogHeaderCache(1000);
    final PhysicalLogFiles logFiles = new PhysicalLogFiles(storeDir, PhysicalLogFile.DEFAULT_NAME, fileSystemAbstraction);
    final PhysicalLogFile logFile = life.add(new PhysicalLogFile(fileSystemAbstraction, logFiles, config.get(GraphDatabaseSettings.logical_log_rotation_threshold), transactionIdStore::getLastCommittedTransactionId, logVersionRepository, physicalLogMonitor, logHeaderCache));
    final PhysicalLogFileInformation.LogVersionToTimestamp logInformation = version -> {
        LogPosition position = LogPosition.start(version);
        try (ReadableLogChannel channel = logFile.getReader(position)) {
            LogEntry entry;
            while ((entry = logEntryReader.readLogEntry(channel)) != null) {
                if (entry instanceof LogEntryStart) {
                    return entry.<LogEntryStart>as().getTimeWritten();
                }
            }
        }
        return -1;
    };
    final LogFileInformation logFileInformation = new PhysicalLogFileInformation(logFiles, logHeaderCache, transactionIdStore::getLastCommittedTransactionId, logInformation);
    if (config.get(GraphDatabaseFacadeFactory.Configuration.ephemeral)) {
        config = config.withDefaults(stringMap(GraphDatabaseSettings.keep_logical_logs.name(), "1 files"));
    }
    String pruningConf = config.get(GraphDatabaseSettings.keep_logical_logs);
    LogPruneStrategy logPruneStrategy = fromConfigValue(fs, logFileInformation, logFiles, pruningConf);
    final LogPruning logPruning = new LogPruningImpl(logPruneStrategy, logProvider);
    final LogRotation logRotation = new LogRotationImpl(monitors.newMonitor(LogRotation.Monitor.class), logFile, databaseHealth);
    final TransactionAppender appender = life.add(new BatchingTransactionAppender(logFile, logRotation, transactionMetadataCache, transactionIdStore, legacyIndexTransactionOrdering, databaseHealth));
    final LogicalTransactionStore logicalTransactionStore = new PhysicalLogicalTransactionStore(logFile, transactionMetadataCache, logEntryReader);
    int txThreshold = config.get(GraphDatabaseSettings.check_point_interval_tx);
    final CountCommittedTransactionThreshold countCommittedTransactionThreshold = new CountCommittedTransactionThreshold(txThreshold);
    long timeMillisThreshold = config.get(GraphDatabaseSettings.check_point_interval_time);
    TimeCheckPointThreshold timeCheckPointThreshold = new TimeCheckPointThreshold(timeMillisThreshold, clock);
    CheckPointThreshold threshold = CheckPointThresholds.or(countCommittedTransactionThreshold, timeCheckPointThreshold);
    final CheckPointerImpl checkPointer = new CheckPointerImpl(transactionIdStore, threshold, storageEngine, logPruning, appender, databaseHealth, logProvider, tracers.checkPointTracer, ioLimiter, storeCopyCheckPointMutex);
    long recurringPeriod = Math.min(timeMillisThreshold, TimeUnit.SECONDS.toMillis(10));
    CheckPointScheduler checkPointScheduler = new CheckPointScheduler(checkPointer, scheduler, recurringPeriod, databaseHealth);
    life.add(checkPointer);
    life.add(checkPointScheduler);
    return new NeoStoreTransactionLogModule(logicalTransactionStore, logFileInformation, logFiles, logFile, logRotation, checkPointer, appender, legacyIndexTransactionOrdering);
}

Example 2 with PhysicalLogFileInformation

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

the class PhysicalLogFileInformationTest method shouldReadAndCacheFirstCommittedTransactionIdWhenNotCached.

@Test
public void shouldReadAndCacheFirstCommittedTransactionIdWhenNotCached() throws Exception {
    PhysicalLogFileInformation info = new PhysicalLogFileInformation(logFiles, logHeaderCache, transactionIdStore::getLastCommittedTransactionId, logVersionToTimestamp);
    long expected = 5;
    long version = 10L;
    when(logFiles.getHighestLogVersion()).thenReturn(version);
    when(logHeaderCache.getLogHeader(version)).thenReturn(null);
    when(logFiles.versionExists(version)).thenReturn(true);
    when(logFiles.extractHeader(version)).thenReturn(new LogHeader((byte) -1, /*ignored*/
    -1L, /*ignored*/
    expected - 1L));
    when(logFiles.hasAnyEntries(version)).thenReturn(true);
    long firstCommittedTxId = info.getFirstExistingEntryId();
    assertEquals(expected, firstCommittedTxId);
    verify(logHeaderCache, times(1)).putHeader(version, expected - 1);
}

Example 3 with PhysicalLogFileInformation

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

the class PhysicalLogFileInformationTest method shouldReturnNothingWhenThereAreNoTransactions.

@Test
public void shouldReturnNothingWhenThereAreNoTransactions() throws Exception {
    PhysicalLogFileInformation info = new PhysicalLogFileInformation(logFiles, logHeaderCache, transactionIdStore::getLastCommittedTransactionId, logVersionToTimestamp);
    long version = 10L;
    when(logFiles.getHighestLogVersion()).thenReturn(version);
    when(logFiles.hasAnyEntries(version)).thenReturn(false);
    long firstCommittedTxId = info.getFirstExistingEntryId();
    assertEquals(-1, firstCommittedTxId);
}

Example 4 with PhysicalLogFileInformation

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

the class PhysicalLogFileInformationTest method shouldReadAndCacheFirstCommittedTransactionIdForAGivenVersionWhenNotCached.

@Test
public void shouldReadAndCacheFirstCommittedTransactionIdForAGivenVersionWhenNotCached() throws Exception {
    PhysicalLogFileInformation info = new PhysicalLogFileInformation(logFiles, logHeaderCache, transactionIdStore::getLastCommittedTransactionId, logVersionToTimestamp);
    long expected = 5;
    long version = 10L;
    when(logHeaderCache.getLogHeader(version)).thenReturn(null);
    when(logFiles.versionExists(version)).thenReturn(true);
    when(logFiles.extractHeader(version)).thenReturn(new LogHeader((byte) -1, /*ignored*/
    -1L, /*ignored*/
    expected - 1L));
    long firstCommittedTxId = info.getFirstEntryId(version);
    assertEquals(expected, firstCommittedTxId);
    verify(logHeaderCache, times(1)).putHeader(version, expected - 1);
}

Example 5 with PhysicalLogFileInformation

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

the class PhysicalLogFileInformationTest method shouldReadFirstCommittedTransactionIdWhenCached.

@Test
public void shouldReadFirstCommittedTransactionIdWhenCached() throws Exception {
    PhysicalLogFileInformation info = new PhysicalLogFileInformation(logFiles, logHeaderCache, transactionIdStore::getLastCommittedTransactionId, logVersionToTimestamp);
    long expected = 5;
    long version = 10L;
    when(logFiles.getHighestLogVersion()).thenReturn(version);
    when(logFiles.versionExists(version)).thenReturn(true);
    when(logHeaderCache.getLogHeader(version)).thenReturn(expected - 1);
    when(logFiles.hasAnyEntries(version)).thenReturn(true);
    long firstCommittedTxId = info.getFirstExistingEntryId();
    assertEquals(expected, firstCommittedTxId);
}