Uploaded image for project: 'IMPALA'
  1. IMPALA
  2. IMPALA-3393

Report thread wake up interval is not well distributed

    XMLWordPrintableJSON

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Later
    • Affects Version/s: Impala 2.5.0
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:
      None

      Description

      https://github.com/cloudera/Impala/blob/cdh5-trunk/be/src/runtime/plan-fragment-executor.cc#L398

      We take an integer from 0 to 4. so if there are 200 nodes then ~40 of them will report at the same time every 5 seconds. This does not take into account fragment start time is basically random...

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                Unassigned
                Reporter:
                HuaisiXu Huaisi Xu
              • Votes:
                0 Vote for this issue
                Watchers:
                4 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: