Wait Type PRINT_ROLLBACK_PROGRESS

Wait statistics, in the context of SQL Server, refer to the amount of time that a query spends waiting to access data in the database. When a client application requests data from the database, the request is placed in a queue and the client application must wait for its turn to access the data. The time that the query spends waiting is called a "wait" and is tracked by SQL Server. This information can be used to identify potential performance bottlenecks and optimize the performance of the database. Wait statistics are commonly used by database administrators to diagnose and troubleshoot performance issues in SQL Server.

The SQL Server PRINT_ROLLBACK_PROGRESS wait type is used to indicate that a thread is waiting on a rollback operation to complete. This typically occurs when a transaction is being rolled back, either because it was explicitly cancelled by a user or because it encountered an error and could not be completed successfully.

When a thread encounters a PRINT_ROLLBACK_PROGRESS wait, it means that it is unable to continue with its current task until the rollback operation has finished. This can cause performance issues, as other threads may also be waiting on the same rollback to complete before they can continue with their own tasks.

To alleviate this problem, it is important to monitor for PRINT_ROLLBACK_PROGRESS waits and take action to address any underlying issues that may be causing long rollback times. This could include optimizing the rollback process itself, or identifying and addressing any problems with the transactions that are being rolled back.

Overall, the SQL Server PRINT_ROLLBACK_PROGRESS wait type is an important indicator of potential performance issues related to rollback operations. By monitoring for this wait type and taking action to address any underlying issues, it is possible to improve the overall performance of your SQL Server database.

Applies to

• SQL Server 2019
• SQL Server 2022

See Also

• More About PRINT_ROLLBACK_PROGRESS