The AlwaysOn availability replica manager is waiting for serialized access to the runtime state of a background task that processes Windows Server Failover Clustering notifications. Internal use only. Information from Microsoft®
Waitopedia is a comprehensive resource of information about SQL Server waits.
The description shown below is the top answer as voted by the Spotlight community.
The charts are based on 2.1 TB of data collected from 4207 instances uploaded by 323 Spotlight users over an 8 week period.
HADR_NOTIFICATION_WORKER_EXCLUSIVE_ACCESS
Category: Idle
SQL Server versions: 2012, 2014, 2016, 2017
This is an idle wait and so it can be safely ignored.
What is HADR_NOTIFICATION_WORKER_EXCLUSIVE_ACCESS?
1 Answer
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answered 3105 days ago
Spotlight Essentials
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This wait has never occurred recently
HADR_NOTIFICATION_WORKER_EXCLUSIVE_ACCESS has not occurred recently on 4207 instances checked.