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

Example 11 with SimpleTransactionIdStore

use of org.neo4j.kernel.impl.transaction.SimpleTransactionIdStore in project neo4j by neo4j.

the class VersionAwareLogEntryReaderIT method readOnlyLogFilesWhileCommandsAreAvailable.

@Test
@EnabledOnOs(OS.LINUX)
void readOnlyLogFilesWhileCommandsAreAvailable() throws IOException {
    LogFiles logFiles = LogFilesBuilder.builder(databaseLayout, fs).withLogEntryReader(entryReader).withLogVersionRepository(new SimpleLogVersionRepository()).withTransactionIdStore(new SimpleTransactionIdStore()).withStoreId(StoreId.UNKNOWN).build();
    try (Lifespan lifespan = new Lifespan(logFiles)) {
        assertEquals(kibiBytes(128), Files.size(logFiles.getLogFile().getHighestLogFile()));
        LogPosition logPosition = entryReader.lastPosition();
        assertEquals(0L, logPosition.getLogVersion());
        // this position in a log file before 0's are actually starting
        assertEquals(END_OF_DATA_OFFSET, logPosition.getByteOffset());
    }
}

Example 12 with SimpleTransactionIdStore

use of org.neo4j.kernel.impl.transaction.SimpleTransactionIdStore in project neo4j by neo4j.

the class VersionAwareLogEntryReaderIT method readTillTheEndOfNotPreallocatedFile.

@Test
@DisabledOnOs(OS.LINUX)
void readTillTheEndOfNotPreallocatedFile() throws IOException {
    LogFiles logFiles = LogFilesBuilder.builder(databaseLayout, fs).withLogEntryReader(entryReader).withLogVersionRepository(new SimpleLogVersionRepository()).withTransactionIdStore(new SimpleTransactionIdStore()).withStoreId(StoreId.UNKNOWN).build();
    try (Lifespan lifespan = new Lifespan(logFiles)) {
        LogPosition logPosition = entryReader.lastPosition();
        assertEquals(0L, logPosition.getLogVersion());
        assertEquals(Files.size(logFiles.getLogFile().getHighestLogFile()), logPosition.getByteOffset());
    }
}

Example 13 with SimpleTransactionIdStore

use of org.neo4j.kernel.impl.transaction.SimpleTransactionIdStore in project neo4j by neo4j.

the class CorruptedLogsTruncatorTest method setUp.

@BeforeEach
void setUp() throws Exception {
    databaseDirectory = testDirectory.homePath();
    logVersionRepository = new SimpleLogVersionRepository();
    SimpleTransactionIdStore transactionIdStore = new SimpleTransactionIdStore();
    logFiles = LogFilesBuilder.logFilesBasedOnlyBuilder(databaseDirectory, fs).withRotationThreshold(SINGLE_LOG_FILE_SIZE).withLogVersionRepository(logVersionRepository).withTransactionIdStore(transactionIdStore).withLogEntryReader(logEntryReader()).withStoreId(StoreId.UNKNOWN).withConfig(Config.newBuilder().set(GraphDatabaseInternalSettings.checkpoint_logical_log_rotation_threshold, 1024L).build()).build();
    life.add(logFiles);
    logPruner = new CorruptedLogsTruncator(databaseDirectory, logFiles, fs, INSTANCE);
}

Example 14 with SimpleTransactionIdStore

use of org.neo4j.kernel.impl.transaction.SimpleTransactionIdStore in project neo4j by neo4j.

the class ReversedSingleFileTransactionCursorTest method setUp.

@BeforeEach
void setUp() throws IOException {
    LogVersionRepository logVersionRepository = new SimpleLogVersionRepository();
    SimpleTransactionIdStore transactionIdStore = new SimpleTransactionIdStore();
    logFiles = LogFilesBuilder.builder(databaseLayout, fs).withRotationThreshold(ByteUnit.mebiBytes(10)).withLogVersionRepository(logVersionRepository).withTransactionIdStore(transactionIdStore).withLogEntryReader(logEntryReader()).withStoreId(StoreId.UNKNOWN).build();
    life.add(logFiles);
    logFile = logFiles.getLogFile();
}

Example 15 with SimpleTransactionIdStore

use of org.neo4j.kernel.impl.transaction.SimpleTransactionIdStore in project neo4j by neo4j.

the class TransactionLogAppendAndRotateIT method shouldKeepTransactionsIntactWhenConcurrentlyRotationAndAppending.

@Test
void shouldKeepTransactionsIntactWhenConcurrentlyRotationAndAppending() throws Throwable {
    // GIVEN
    LogVersionRepository logVersionRepository = new SimpleLogVersionRepository();
    LogFiles logFiles = LogFilesBuilder.builder(databaseLayout, fileSystem).withLogVersionRepository(logVersionRepository).withRotationThreshold(ByteUnit.mebiBytes(1)).withTransactionIdStore(new SimpleTransactionIdStore()).withLogEntryReader(logEntryReader()).withStoreId(StoreId.UNKNOWN).build();
    life.add(logFiles);
    final AtomicBoolean end = new AtomicBoolean();
    AllTheMonitoring monitoring = new AllTheMonitoring(end, 100);
    TransactionIdStore txIdStore = new SimpleTransactionIdStore();
    TransactionMetadataCache metadataCache = new TransactionMetadataCache();
    monitoring.setLogFile(logFiles.getLogFile());
    Health health = new DatabaseHealth(mock(DatabasePanicEventGenerator.class), NullLog.getInstance());
    LogRotation rotation = transactionLogRotation(logFiles, Clock.systemUTC(), health, monitoring);
    final TransactionAppender appender = life.add(new BatchingTransactionAppender(logFiles, rotation, metadataCache, txIdStore, health));
    // WHEN
    Race race = new Race();
    for (int i = 0; i < 4; i++) {
        race.addContestant(() -> {
            while (!end.get()) {
                try {
                    appender.append(new TransactionToApply(sillyTransaction(1_000), CursorContext.NULL), LogAppendEvent.NULL);
                } catch (Exception e) {
                    e.printStackTrace(System.out);
                    end.set(true);
                    fail(e.getMessage(), e);
                }
            }
        });
    }
    race.addContestant(endAfterMax(250, MILLISECONDS, end, monitoring));
    race.go();
    // THEN
    assertTrue(monitoring.numberOfRotations() > 0);
}