@AfterClass
  public static void cleanupTest() throws Exception {
    if (CONNECTION != null) {
      CONNECTION.close();
    }
    UTIL.shutdownMiniZKCluster();
    if (POOL != null) {
      POOL.shutdownNow();
    }
  }
Setup the config for the cluster
hbase-server/src/test/java/org/apache/hadoop/hbase/backup/example/TestZooKeeperTableArchiveClient.java