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New Contributor
Posts: 3
Registered: ‎10-29-2016

Advantages of Cloudera JDBC Connector over Hive jdbc driver for impala

Hi,

 

Cloudera document says "Cloudera recommends using the Cloudera JDBC Connector where practical"

 

What are the advantages of Cloudera JDBC Connector over Hive jdbc driver for impala? why does cloudera recommend cloudera jdbc connector? 

 

Thanks,

Sudhir

Posts: 633
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Registered: ‎08-16-2016

Re: Advantages of Cloudera JDBC Connector over Hive jdbc driver for impala

Simply because they maintain and control it. I haven't compared them side by side but Cloudera probably has more client side control options.
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Cloudera Employee
Posts: 241
Registered: ‎07-29-2015

Re: Advantages of Cloudera JDBC Connector over Hive jdbc driver for impala

We don't officially support the Hive JDBC driver with Impala so we don't really guarantee that it will work in all cases, e.g. especially with the various secure communication and authentication options.

 

The Cloudera JDBC driver also implements various features client-side like substitution variables. It also does some query rewrites to support additional SQL constructs if you have "UseNativeQuery=0", although Impala's SQL support is a lot more complete now so I'm not sure how many cases this still applies to.

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