First published on MSDN on Nov 15, 2013
The
LeaseTimeout
controls the lease mechanism and when the lease expires there is a very high probability of a system wide event taking place. Let me explain more and why I make this statement.
Based in recent cases I needed to extend and clarify this post.
http://blogs.msdn.com/b/psssql/archive/2012/09/07/how-it-works-sql-server-alwayson-lease-timeou...
Bob Dorr - Principal SQL Server Escalation Engineer