SQL Server Error Msg 19431 – Always On Availability Groups transport for availability database “%.*ls” has hit flow control boundary with log block whose LSN is %S_LSN. This error happens when secondary replica doesn’t have buffer to receive a new message from primary. This is an informational message only. No user action is required.

In this blog post, let’s learn about the error message “19431 – Always On Availability Groups transport for availability database “%.*ls” has hit flow control boundary with log block whose LSN is %S_LSN. This error happens when secondary replica doesn’t have buffer to receive a new message from primary. This is an informational message only. No user action is required.” in Microsoft SQL Server, the reason why it appears and the solution to fix it.

SQL Server Error Message

19431 – Always On Availability Groups transport for availability database “%.*ls” has hit flow control boundary with log block whose LSN is %S_LSN. This error happens when secondary replica doesn’t have buffer to receive a new message from primary. This is an informational message only. No user action is required.

Reason for the Error

To be update soon…

Solution

To be update soon…