Splunk AppDynamics automatically detects HTTP backends when outbound calls are made through supported HTTP clients, and by default names them according to their host and port. If the default configuration results in names that are not meaningful for your application (such as EC2 host names, file paths, and ports in the name) you can change the default discovery rule.

Additionally, if an HTTP call is destined for an http router which could route the request to one of several instrumented downstream tiers then the default naming rules will need to be modified such that the name includes enough segments of the target URL such that each destination tier is associated with a differently named backend.