private final Set<String> createdTableNames;
private HaeinsaTestingCluster() throws Exception {
Configuration conf = HBaseConfiguration.create();
HBaseTestingUtility utility = new HBaseTestingUtility(conf);
utility.cleanupTestDir();
cluster = utility.startMiniCluster();
configuration = cluster.getConfiguration();
threadPool = Executors.newCachedThreadPool();
haeinsaTablePool = TestingUtility.createHaeinsaTablePool(configuration, threadPool);