The Messaging SQL database in Sitecore XP 9.1 deployed to Azure may suffer from high DTU (up to 100%) out of the box. The issue is relevant to:
- Managed Cloud customers
- Sitecore XP deployed via Azure Marketplace
- Sitecore XP deployed with Azure Toolkit
To resolve this issue, download and install the following hotfix on all web apps:
For Sitecore XP 9.1 Initial Release and 9.1 Update-1: SC Hotfix 325852-2 Sitecore.Messaging 2.0.1
Notes:
- See the readme.txt file inside the archive for the installation instructions.
- If you have any hotfixes already installed for the Sitecore.Framework.Messaging.*.dll or Sitecore.Messaging.*.dll assemblies, contact Sitecore Support.