AWS Lambda has launched three new metrics AsyncEventsReceived, AsyncEventAge and AsyncEventsDropped, to monitor the performance of asynchronous event processing. Until now, Lambda customers had little visibility into the processing of asynchronous requests and had to rely on Lambda service teams to resolve any processing delays leading to inefficiencies in asynchronous event processing. With these new metrics customers have better visibility into their asynchronous invocations and can track the events sent to Lambda, monitor delays in event processing and take corrective actions if required.