KNOWLEDGE BASE

Concurrency limits in REST APIs on Tableau Online


Published: 05 Oct 2021
Last Modified Date: 11 Oct 2021

Issue

HTTP 429 error occurs on Tableau Online
 

Environment

  • Tableau Online

Resolution

Retry accessing site on Tableau Online. The request should be tried at another time, sequentially instead of concurrently.

Cause

Too many concurrent requests coming form a single site. Concurrent requests to endpoints that start long-running jobs, including this one, are limited to 20 at a time. A 429 HTML response means that a request exceeded the limits and should be retried at a later time 
 

Additional Information

The following APIs are impacted:
Query view data
Download Workbook PowerPoint
Download workbook pdf
Query view pdf
Query view image
Export Data
Query view crosstab excel
Download datasource
 
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