Issue link: https://read.uberflip.com/i/1322200
© 2020, Amazon Web Services, Inc. or its Affiliates. What are our challenges? • Unpredictable traffic peaks on both shopping website and mobile APP • Triggered by marketing activities / promotions • Triggered by releasing hot and limited items • Limited capacity on concurrent users due to the performance bottlenecks on application and servers • Scaling up servers to serve all users at the same time may not cost effective • Poor customer experience due to traffic peaks and led to server down • High drop-off rate • Lost sales