Play metrics come from Lightbend Telemetry (Cinammon), and describe performance of the Play HTTP client. Play applications will also be covered by Akka monitors, for actor and HTTP server monitoring.
Play applications may communicate with remote HTTP servers by making requests and waiting for a response. The
play_http_client_response_time monitor warns if that waiting time is anomalous compared to average wait time, in similar manner to the
Lightbend Telemetry provides a timer measuring client wait time as play_http_client_response_time