Uploaded image for project: 'IMPALA'
  1. IMPALA
  2. IMPALA-4381

Incorrect results for TPC-H Q4 in test_mem_usage_scaling.py

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: Impala 2.8.0
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:

      Description

      I noticed that I was reproducibly getting incorrect results for some tests in test_mem_usage_scaling.py. E.g. q4.

      I was able to bisect the problem to the commit 61fcb489745f3f0b3f1abbf9fbf666a29a6363de "IMPALA-4300: Speed up BloomFilter::Or with SIMD"

      I'm not sure why we're not seeing on the jenkins machines - maybe it's related to the CPU I'm running on.

        Attachments

          Activity

            People

            • Assignee:
              jbapple Jim Apple
              Reporter:
              tarmstrong Tim Armstrong
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: