We have been getting AG Lease Timeouts. The cause is being investigated and looks to be storage IO performance related. Anyway, I increased the lease timeout as mitigation but was wondering if there was any way of seeing the lease timeout renewal process in action?
I wanted to confirm the new timeout value is being used somehow. I have the situation where I'm not getting timeouts but I don't know if that's due to the larger lease timeout value or the problem not occurring to cause the timeout.
I can see when timeouts occur via the Alwaysonhealth extended even session, but it doesn't seem to have anything for successful renewals. I have seen articles that reference a hadr_ag_lease_renewal extended event but I can't seem to locate that event.