zhuangchong commented on issue #4248:
URL: 
https://github.com/apache/incubator-dolphinscheduler/issues/4248#issuecomment-747150636


   There are two JDBC connections, impala-JDBC and Hive-JDBC, and the Hive-JDBC 
connection is also used in the Cloudera test case (dolphin is currently using 
the same method). It is planned that the latter two can be supported.
   
   ---
   impala 是有两种jdbc连接方式,使用impala-jdbc和hive-jdbc,在Cloudera 
测试用例中也是使用hive-jdbc方式连接impala(dolphin目前也是这种),规划是后面两种都可以支持


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