Unknown connection string. Name: 'master' error on CD server

  • When a Sitecore XP instance is operating as a CD server, the cache is not refreshed and the following Exception appears:

    Exception: System.InvalidOperationException
    Message: Unknown connection string. Name: 'master'

    The cause of this error is that eventQueue node references the Master database in the Sitecore.config file without the role:require attribute (while the master connection string is not present on the CD server).

  • To exclude Master database references, when the role is set to ContentDelivery, add the text highlighted in bold  to the EventQueue configuration in the Sitecore.config file:

    <eventqueueprovider defaulteventqueue="core">
      <eventqueue role:require="ContentManagement or Standalone" name="master" type="Sitecore.Data.Eventing.$(database)EventQueue, Sitecore.Kernel">
        <param ref="dataApis/dataApi[@name='$(database)']" param1="$(name)">
        <param hint="" ref="PropertyStoreProvider/store[@name='$(name)']">

Applies to:

CMS 9.0 Update-1 - 9.0 Update-2

CMS 9.1 Initial Release

September 03, 2019
September 03, 2019

Reference number: