Uploaded image for project: 'IMPALA'
  1. IMPALA
  2. IMPALA-6311

Evaluate smaller FPP for Bloom filters

    XMLWordPrintableJSON

    Details

    • Type: Task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Perf Investigation
    • Labels:
      None
    • Epic Color:
      ghx-label-2

      Description

      The Bloom filters are created by estimating the NDV and then using the FPP of 75% to get the right size for the filter. This is may be too high to be very useful - if our filters are currently filtering more than 75% out, then it is only because we are overestimating NDV.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                rizaon Riza Suminto
                Reporter:
                jbapple Jim Apple
              • Votes:
                0 Vote for this issue
                Watchers:
                6 Start watching this issue

                Dates

                • Created:
                  Updated: