Assume that you have a SQL Service Broker (SSB) application deployed as part of Always On availability groups (AGs) in Microsoft SQL Server, and then you use AG listener to connect. After an AG failover, the SSB outgoing connections on the original primary replica are left open. This causes SSB incoming messages to be dropped because the databases are read-only or inaccessible.
Therefore, it manifests that SSB messages are stuck in the transmission queue, and more than one Service Broker connections exist in the AG.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 4016361 - Last Review: 2017, മേയ് 15 - Revision: 10