PRCS-01134
Server category {0} of server pool {1} has the following non-LEAF CSS role: {2}
Cause
An attempt to add or modify a reader farm service was rejected because the server category of the specified server pool did not have ACTIVE_CSS_ROLE=LEAF as required for reader farm services.
Action
Modify the server pool to use a server category that has the LEAF active CSS role or modify the server category to use ACTIVE_CSS_ROLE=LEAF and retry the operation.