Integration / Apache Pulsar Interview questions
What is an Information Point?
An Information Point lets you turn the return value or a parameter of any method call into a custom metric, even if that method has nothing to do with entry points, exit points, or Business Transactions at all.
You configure it by pointing at a class and method (similar to a Service Endpoint's match rule), then specifying what to capture — the method's numeric return value, a specific parameter value, or simply a count of how often it's called — and AppDynamics reports that as a custom metric alongside the standard ones.
A common use case is exposing a business-specific number buried in application logic, such as a shopping cart's current item count or a queue's current backlog size returned by an internal method, so it can appear on a dashboard and be alerted on just like any built-in metric.
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