Denodo Platform 7.0 and 8.0 supports Impala 2.3 JDBC driver for connecting to Cloudera Impala Environment.
The latest Impala driver is not yet officially tested with CDP 7 but you can connect to a higher version of driver and choose the latest Database adapter from Virtual DataPort. Latest driver can be downloaded from the vendor website and the driver should be imported in Virtual Dataport Administration Tool by following the steps mentioned in [Importing a JDBC Driver](https://community.denodo.com/docs/html/browse/8.0/en/vdp/administration/importing_extensions/importing_extensions#importing-a-jdbc-driver) documentation.
Have a look at the [Connecting to Cloudera Impala from Denodo Platform](https://community.denodo.com/kb/en/view/document/How%20to%20connect%20to%20Cloudera%20Impala%20from%20the%20Denodo%20Platform) document for connection based information and the [JDBC data sources](https://community.denodo.com/docs/html/browse/8.0/en/vdp/administration/appendix/supported_jdbc_data_sources/supported_jdbc_data_sources) document to know about the support data sources and its versions.
Besides, if you overcome any issues in future then if you are a valid support user you can open a support case and, our support team would help you with it.
Hope this helps!