Error "Session Ended by Server" When Dashboard Load Times Out After 30 Minutes

Published: 05 Dec 2013
Last Modified Date: 25 Aug 2020


When loading a dashboard on Tableau Server, the dashboard fails to load within 30 minutes and the following error might occur:
Session Ended by Server
An unexpected error occurred on the server. If you continue to receive this error please contact your Tableau Server Administrator.
Tableau Server (<version>) encountered an error while working with this worksheet.


  • Tableau Server


Increase the query time out limit.
  1. On the computer running Tableau Server, open the Command Prompt window as an administrator and run one of the following commands:
    • On a 32-bit computer: cd "C:\Program Files\Tableau\Tableau Server\[version]\bin"
    • On a 64-bit computer: cd "C:\Program Files (x86)\Tableau\Tableau Server\[version]\bin"
  2. At the command prompt, run the following commands in order:
    • tabadmin stop 
    • tabadmin set vizqlserver.querylimit 3600 
    • tabadmin config
    • tabadmin start
Note: 3600 is one hour in seconds. The default value 1800.


The default query timeout on Tableau Server is 30 minutes. If running a query takes more than 30 minutes, Tableau Server stops the query, and this error message displays.
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