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Low performance on havy load on frontend pages requested with unique query params when the page cache profile is set with varyByParams = "*"

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Article Number000099495
EnvironmentProduct: Sitefinity
Version:11.1, 12.x
OS: All supported OS versions
Database: All supported Microsoft SQL Server versions
Question/Problem Description
Site upgraded to Sitefinity 11.1 started to exhibit slowness in page edit and content edit when there is a high frontend load on the site.
Steps to ReproduceThe problem can be reproduced in load test scenario after setting varyByParams = "*" of the standard pages outout cache profile (which is the default one for pages) and simultaniously:
- browse different fronend pages (5 users in parallel)
- edit those page (1 user)
- browse another page (not edited) with different unique query string parameters
Clarifying Information
Error Message
Defect/Enhancement NumberBug 263057
This problem is caused by a bug in Sitefinity. For more information about bug 263057,see

Sitefinity cache dependency functionality that saves data in tables [sf_oc_itms] and [sf_oc_dpendencies] tables makes excessive database queries.
Fixed in Sitefinity 12.1.7126.0
Last Modified Date2/20/2020 1:29 PM