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

Example 16 with UpgradableDatabase

use of org.neo4j.kernel.impl.storemigration.UpgradableDatabase in project neo4j by neo4j.

the class StoreMigratorIT method shouldComputeTheLastTxLogPositionCorrectly.

@Test
public void shouldComputeTheLastTxLogPositionCorrectly() throws Throwable {
    // GIVEN a legacy database
    File storeDirectory = directory.graphDbDir();
    File prepare = directory.directory("prepare");
    MigrationTestUtils.prepareSampleLegacyDatabase(version, fs, storeDirectory, prepare);
    // and a state of the migration saying that it has done the actual migration
    LogService logService = NullLogService.getInstance();
    PageCache pageCache = pageCacheRule.getPageCache(fs);
    UpgradableDatabase upgradableDatabase = new UpgradableDatabase(fs, new StoreVersionCheck(pageCache), new LegacyStoreVersionCheck(fs), selectFormat());
    String versionToMigrateFrom = upgradableDatabase.checkUpgradeable(storeDirectory).storeVersion();
    SilentMigrationProgressMonitor progressMonitor = new SilentMigrationProgressMonitor();
    StoreMigrator migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    File migrationDir = new File(storeDirectory, StoreUpgrader.MIGRATION_DIRECTORY);
    fs.mkdirs(migrationDir);
    // WHEN migrating
    migrator.migrate(storeDirectory, migrationDir, progressMonitor.startSection("section"), versionToMigrateFrom, upgradableDatabase.currentVersion());
    // THEN it should compute the correct last tx log position
    assertEquals(expectedLogPosition, migrator.readLastTxLogPosition(migrationDir));
}

Example 17 with UpgradableDatabase

use of org.neo4j.kernel.impl.storemigration.UpgradableDatabase in project neo4j by neo4j.

the class StoreMigratorIT method shouldBeAbleToResumeMigrationOnRebuildingCounts.

@Test
public void shouldBeAbleToResumeMigrationOnRebuildingCounts() throws Exception {
    // GIVEN a legacy database
    File storeDirectory = directory.graphDbDir();
    File prepare = directory.directory("prepare");
    MigrationTestUtils.prepareSampleLegacyDatabase(version, fs, storeDirectory, prepare);
    // and a state of the migration saying that it has done the actual migration
    LogService logService = NullLogService.getInstance();
    PageCache pageCache = pageCacheRule.getPageCache(fs);
    UpgradableDatabase upgradableDatabase = new UpgradableDatabase(fs, new StoreVersionCheck(pageCache), new LegacyStoreVersionCheck(fs), selectFormat());
    String versionToMigrateFrom = upgradableDatabase.checkUpgradeable(storeDirectory).storeVersion();
    SilentMigrationProgressMonitor progressMonitor = new SilentMigrationProgressMonitor();
    StoreMigrator migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    File migrationDir = new File(storeDirectory, StoreUpgrader.MIGRATION_DIRECTORY);
    fs.mkdirs(migrationDir);
    migrator.migrate(storeDirectory, migrationDir, progressMonitor.startSection("section"), versionToMigrateFrom, upgradableDatabase.currentVersion());
    migrator.moveMigratedFiles(migrationDir, storeDirectory, versionToMigrateFrom, upgradableDatabase.currentVersion());
    // WHEN simulating resuming the migration
    progressMonitor = new SilentMigrationProgressMonitor();
    migrator = new StoreMigrator(fs, pageCache, CONFIG, logService, schemaIndexProvider);
    migrator.rebuildCounts(storeDirectory, versionToMigrateFrom, upgradableDatabase.currentVersion());
    // THEN starting the new store should be successful
    StoreFactory storeFactory = new StoreFactory(storeDirectory, pageCache, fs, logService.getInternalLogProvider());
    storeFactory.openAllNeoStores().close();
}