How It Works: SQL Server AlwaysOn Lease Timeout

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-timeout.aspx

Bob Dorr - Principal SQL Server Escalation Engineer