title: Amazon SNS, how to find the source of an event?
body: <p>So I'm trying to find the source of a strange bug which causes unusual invocation spikes for a particular lambda function. So far, I've added logging functionality to the lambdas and redeployed to glean more info about the context and event objects that trigger the lambda.</p>
  
  <p>So I want to know where these events are originating, and from those aforementioned logged event objects I've found the TopicArn that is the culprit, but how do I go about finding the guilty publisher in this relationship? Any ideas or something I'm overlooking?</p>