title: AWS AutoScaling - how does the "Request count per target" measurement works?
body: <p>When using a scaling policy in AWS fargate service, i want to scale using the &quot;request count per target&quot; metric.</p>
  <p>But i am having difficulty understanding how this is determined. Is there a time period associated with the request count?</p>
  <p>eg: requests per target per minute</p>
  <p>Or are these concurrent requests? If it is concurrent requests, would concurrent requests be determined as requests which have been sent but not responded to?</p>