Tim Armstrong created IMPALA-6645:

             Summary: Consider enabling disk spill encryption by default
                 Key: IMPALA-6645
                 URL: https://issues.apache.org/jira/browse/IMPALA-6645
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
    Affects Versions: Not Applicable
            Reporter: Tim Armstrong
            Assignee: Tim Armstrong

We currently have integrity checks disabled by default because of the 
additional CPU cost. 

Now that IMPALA-6219, the integrity checks are cheaper so it may be worth just 
paying the cost. We could also consider doing a lighter-weight CRC checksum, 
but AES-GCM may be fast enough at 2.3GB/s to do by default.

We should do an experiment to see if there's a major impact on spill-to-disk 

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