static String getMetastoreJdbcDriverUrl(Configuration conf) throws SQLException {
    return MetastoreConf.getVar(conf, MetastoreConf.ConfVars.CONNECT_URL_KEY);
  }
@param hdpConfig
@return subset of properties prefixed by a connection pool specific substring
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/datasource/DataSourceProvider.java