@Override
  public void close() throws IOException {
    if (this.admin != null) {
      admin.close();
    }
    if (this.connection != null && !this.connection.isClosed()) {
      this.connection.close();
    }
  }
Returns a ClusterStatus for this HBase cluster
hbase-it/src/test/java/org/apache/hadoop/hbase/DistributedHBaseCluster.java