Download and configure the ODBC driver to integrate your
    applications with Impala.
        
            Impala has been tested with the Impala ODBC driver version
        2.5.42, and Cloudera recommends that you use this version with the
        current version of Impala. 
        
        - Download and install an ODBC driver.
      
 - Configure the ODBC port.
Versions 2.5 and 2.0 of the
          Cloudera ODBC Connector use the HiveServer2 protocol, corresponding to
          Impala port 21050.
Version 1.x of the Cloudera ODBC
          Connector uses the original HiveServer1 protocol, corresponding to
          Impala port 21000.