FIX: Log message displays “N/A” when using ring buffer target to hold extended event data in memory in SQL Server

Applies to: SQL Server 2017 DeveloperSQL Server 2017 EnterpriseSQL Server 2017 Enterprise Core


Assume that you have an instance of Microsoft SQL Server 2017. If you use ring buffer target to briefly hold extended event data in memory, the log message may display “N/A,” and the buffer may overflow.


The fix for this issue is included in the following update for SQL Server:

Cumulative Update 13 for SQL Server 2017


To work around this issue so that the log message is captured correctly, use a target other than a ring buffer target.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


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