For databases utilizing Availability Groups. This wait accumulates while availability replicas are waiting for exclusive access to the local replica event subscriber lists. This wait type is uncommon. If values are high see suggestions below

Resolved by


Suggested solutions

  1. Check the SQL Server error log for more information
  2. Examine wait statistics on the instance for other Availability Group issues. Investigate accordingly

Additional research

AlwaysOn Availability Groups Troubleshooting and Monitoring Guide

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