2 Replies Latest reply on Aug 7, 2017 7:21 AM by Thomas Mueller

    Live DB conn: Tableau idles ~3 seconds between datasource connection and first query

    Thomas Mueller

      Hi all,

       

      We are using Tableau with a live database (Vertica) connection.

       

      To improve dashboard performance, we regularly use the nice Performance Recording feature from Tableau.

       

      In the performance reports, we _always_ see a time gap of ~3 seconds between the two events:
      - datasource connection has been established

      - first query is issued.

       

      I attached a screenshot that visualizes what I mean. First, a datasource connection is created, then Tableau is doing nothing for 3 seconds, then it starts running the actual queries.

       

      This behavior does not really help to provide live dashboards that should show data in a timely manner.

       

      My questions:

      • What is happening here?
      • How to prevent this?

       

      Thank you for your input and help in advance!

       

      Thomas