Examples with StoreMigrator org.neo4j.kernel.impl.storemigration.participant.StoreMigrator used on opensource projects

Example 6 with StoreMigrator

use of org.neo4j.kernel.impl.storemigration.participant.StoreMigrator in project neo4j by neo4j.

the class StoreMigratorFrom20IT method shouldMigrate.

@Test
public void shouldMigrate() throws IOException, ConsistencyCheckIncompleteException {
    // WHEN
    StoreMigrator storeMigrator = new StoreMigrator(fs, pageCache, getConfig(), NullLogService.getInstance(), schemaIndexProvider);
    SchemaIndexMigrator indexMigrator = new SchemaIndexMigrator(fs, schemaIndexProvider, labelScanStoreProvider);
    upgrader(indexMigrator, storeMigrator).migrateIfNeeded(find20FormatStoreDirectory(storeDir.directory()));
    // THEN
    assertEquals(2, monitor.progresses().size());
    assertTrue(monitor.isStarted());
    assertTrue(monitor.isFinished());
    GraphDatabaseService database = new EnterpriseGraphDatabaseFactory().newEmbeddedDatabaseBuilder(storeDir.absolutePath()).newGraphDatabase();
    try {
        verifyDatabaseContents(database);
    } finally {
        // CLEANUP
        database.shutdown();
    }
    LogProvider logProvider = NullLogProvider.getInstance();
    StoreFactory storeFactory = new StoreFactory(storeDir.directory(), pageCache, fs, logProvider);
    try (NeoStores neoStores = storeFactory.openAllNeoStores(true)) {
        verifyNeoStore(neoStores);
    }
    assertConsistentStore(storeDir.directory());
}

Example 7 with StoreMigrator

use of org.neo4j.kernel.impl.storemigration.participant.StoreMigrator in project neo4j by neo4j.

the class StoreUpgraderInterruptionTestIT method shouldSucceedWithUpgradeAfterPreviousAttemptDiedDuringMigration.

@Test
public void shouldSucceedWithUpgradeAfterPreviousAttemptDiedDuringMigration() throws IOException, ConsistencyCheckIncompleteException {
    MigrationTestUtils.prepareSampleLegacyDatabase(version, fs, workingDirectory, prepareDirectory);
    PageCache pageCache = pageCacheRule.getPageCache(fs);
    StoreVersionCheck check = new StoreVersionCheck(pageCache);
    UpgradableDatabase upgradableDatabase = new UpgradableDatabase(fs, check, new LegacyStoreVersionCheck(fs), Standard.LATEST_RECORD_FORMATS);
    SilentMigrationProgressMonitor progressMonitor = new SilentMigrationProgressMonitor();
    LogService logService = NullLogService.getInstance();
    StoreMigrator failingStoreMigrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider) {

        @Override
        public void migrate(File sourceStoreDir, File targetStoreDir, MigrationProgressMonitor.Section progressMonitor, String versionToMigrateFrom, String versionToMigrateTo) throws IOException {
            super.migrate(sourceStoreDir, targetStoreDir, progressMonitor, versionToMigrateFrom, versionToMigrateTo);
            throw new RuntimeException("This upgrade is failing");
        }
    };
    assertEquals(!StandardV2_3.STORE_VERSION.equals(version), allLegacyStoreFilesHaveVersion(fs, workingDirectory, version));
    try {
        newUpgrader(upgradableDatabase, pageCache, progressMonitor, createIndexMigrator(), failingStoreMigrator).migrateIfNeeded(workingDirectory);
        fail("Should throw exception");
    } catch (RuntimeException e) {
        assertEquals("This upgrade is failing", e.getMessage());
    }
    assertEquals(!StandardV2_3.STORE_VERSION.equals(version), allLegacyStoreFilesHaveVersion(fs, workingDirectory, version));
    progressMonitor = new SilentMigrationProgressMonitor();
    StoreMigrator migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    SchemaIndexMigrator indexMigrator = createIndexMigrator();
    newUpgrader(upgradableDatabase, pageCache, progressMonitor, indexMigrator, migrator).migrateIfNeeded(workingDirectory);
    assertTrue(checkNeoStoreHasDefaultFormatVersion(check, workingDirectory));
    assertTrue(allStoreFilesHaveNoTrailer(fs, workingDirectory));
    // Since consistency checker is in read only mode we need to start/stop db to generate label scan store.
    startStopDatabase(workingDirectory);
    assertConsistentStore(workingDirectory);
}

Example 8 with StoreMigrator

use of org.neo4j.kernel.impl.storemigration.participant.StoreMigrator in project neo4j by neo4j.

the class StoreUpgraderTest method failMigrationWhenFailDuringTransactionInformationRetrieval.

@Test
public void failMigrationWhenFailDuringTransactionInformationRetrieval() throws IOException {
    File storeDirectory = directory.graphDbDir();
    File prepare = directory.directory("prepare");
    FileSystemAbstraction fs = new DelegatingFileSystemAbstraction(fileSystem) {

        @Override
        public File[] listFiles(File directory, FilenameFilter filter) {
            if (filter == LegacyLogFilenames.versionedLegacyLogFilesFilter) {
                sneakyThrow(new IOException("Enforced IO Exception Fail to open file"));
            }
            return super.listFiles(directory, filter);
        }
    };
    prepareSampleDatabase(version, fs, storeDirectory, prepare);
    // and a state of the migration saying that it has done the actual migration
    PageCache pageCache = pageCacheRule.getPageCache(fs);
    // remove metadata store record to force tx info lookup in tx logs
    MetaDataStore.setRecord(pageCache, new File(storeDirectory, MetaDataStore.DEFAULT_NAME), MetaDataStore.Position.LAST_TRANSACTION_COMMIT_TIMESTAMP, MetaDataRecordFormat.FIELD_NOT_PRESENT);
    UpgradableDatabase upgradableDatabase = new UpgradableDatabase(fs, new StoreVersionCheck(pageCache), new LegacyStoreVersionCheck(fs), getRecordFormats()) {

        @Override
        public RecordFormats checkUpgradeable(File storeDirectory) {
            return getRecordFormats();
        }
    };
    SilentMigrationProgressMonitor progressMonitor = new SilentMigrationProgressMonitor();
    StoreMigrator defaultMigrator = new StoreMigrator(fs, pageCache, getTuningConfig(), NullLogService.getInstance(), schemaIndexProvider);
    StoreUpgrader upgrader = new StoreUpgrader(upgradableDatabase, progressMonitor, allowMigrateConfig, fs, pageCache, NullLogProvider.getInstance());
    upgrader.addParticipant(defaultMigrator);
    expectedException.expect(UnableToUpgradeException.class);
    expectedException.expectCause(instanceOf(IOException.class));
    expectedException.expectCause(hasMessage(containsString("Enforced IO Exception Fail to open file")));
    upgrader.migrateIfNeeded(storeDirectory);
}