@Override
  public void tearDown() throws Exception {
    if (hbaseCluster != null) {
      util.shutdownMiniCluster();
      hbaseCluster = null;
    }
  }
HBaseTestSetup defines HBase-specific test fixtures which are
reused across testcases.
itests/util/src/main/java/org/apache/hadoop/hive/hbase/HBaseTestSetup.java