Not currently, I'm afraid. Authentication and data access go over the same connection.
To change that, Impala's clients would have to connect over another channel after authentication. The client would have to receive during authentication some shared secret token allowing it to prove to the server that it's ok to access data. We don't currently have any plans to implement this.
In that case, can you suggest a way to speed up the SSL communication with Impala ?
Currently we are using Tableau to extract data from Impala. And with SSL activated, the data extraction is at least 30x to 100x slower than before.
Did you see this behavior ? Do you have a remedy for it ?
Thanks in advance.