@Before
  public void setUp() throws Exception {
    LOG.info("Initializing cluster with " + NUM_SERVERS + " servers");
    util.initializeCluster(NUM_SERVERS);
    LOG.info("Done initializing cluster");
    createTable();
    // after table creation, ACLs need time to be propagated to RSs in a secure deployment
    // so we sleep a little bit because we don't have a good way to know when permissions
    // are received by RSs
    Thread.sleep(3000);
  }
Custom LoadTestDataGenerator. Uses key generation and verification from LoadTestKVGenerator.
Creates 3 column families; one with an integer column to filter on, the 2nd one with an integer
column that matches the first integer column (for test-specific verification), and byte[] value
that is used for general verification; and the third one with just the value.
hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestLazyCfLoading.java