public String getRpcConnnectionURI() throws UnknownHostException {
    return "hbase+rpc://" + MasterRegistry.getMasterAddr(conf);
  }
Do a small get/scan against one store. This is required because store has no actual methods of
querying itself, and relies on StoreScanner.
hbase-testing-util/src/main/java/org/apache/hadoop/hbase/HBaseTestingUtility.java