Description
This wait accumulates while SQL Server is waiting for failover cluster operations to complete. This typically occurs during Availability Group operations such as failover, setting changes and modifying Group Listeners. Some values in this wait type are expected but if values are high see the suggested solutions below. Pre-emptive waits are different from regular (emptive) waits as their execution is controlled by an external processes such as the operating system
Resolved by
DBAs
Suggested solutions
- Check the SQL Server error log for more information
- Examine Windows Failover Clustering logs to determine the cause of listener status changes
- Examine wait statistics on the instance for other Availability Group issues. Investigate accordingly
Additional research
Availability Group Listeners, Client Connectivity, and Application Failover
PREEMPTIVE and Non-PREEMPTIVE
AlwaysOn Availability Groups Troubleshooting and Monitoring Guide