Encrypt spilled data in Impala

Question

Hi. I am using Hue and Impala and there is some data spillage. I want to encrypt this spilled data. Is it possible to do that?

Answer 1

Yes, Impala allows you to encrypt spilled data. All you have to do for this is start every impalad process with the 

--disk_spill_encryption=true

flag. This encrypts all spilled data using AES-256-CFB.