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System Error: AqlProcessor evaluation failed: [SQLSTATE:08003] There is no connection to the server


Published: 27 Nov 2020
Last Modified Date: 08 Jul 2022

Issue

Upon web authoring Tableau Prep flow xxxxxxxxx
Excel Connection in Tableau Prep Web Authoring is unrecoverable after the error in the backend.

Environment

  • Tableau Server 2020.4
  • Tableau Prep Conductor

Resolution

Option 1

Upgrade to Tableau Server 2021.3 or later.

Option 2

Refresh the browser page or pressing F5

Cause

This is a known issue that is fixed in more recent versions of Tableau products.
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