Uploaded image for project: 'IMPALA'
  1. IMPALA
  2. IMPALA-6128 Spill-to-disk Encryption(AES-CFB + SHA256) can be a performance bottleneck while IO is getting faster
  3. IMPALA-6219

Use AES-GCM for spill-to-disk encryption when CLMUL instruction is present and performant

    XMLWordPrintableJSON

Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • Impala 2.11.0
    • Impala 3.0, Impala 2.12.0
    • Backend
    • None
    • ghx-label-5

    Description

      See parent ticket: IMPALA-6128. AES-GCM can be very fast, but it requires an instruction that Impala can currently run without (CLMUL) in order to be fast, so we could dispatch at run-time based on the CPU, using this mode when it is fast.

      Attachments

        Issue Links

          Activity

            People

              kexianda Xianda Ke
              jbapple Jim Apple
              Votes:
              0 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: