I have an application that needs to have two instances installed, one in each of our remote data centers. Both application servers will expect to point to a common listener and will manage the database semantics internally.
Our DBA is saying there is no deployment strategy that can create an available scenario across both data centers such that either application server can operate simultaneously on the same listener due to latency. Traffic across DC's typically see's 5ms latency
which to me seems far too low to be concerned.
Can anyone share some guidance from their experience?