While some IT folks assume that cloud applications are easy to maintain and scale, others believe that performance, availability, and SLAs assurance are the responsibility of the cloud provider. This is far from the truth. Our real-world experience supporting a large, globally distributed ERP deployment on AWS reveals that scaling web applications in the cloud is far more complex than simply adding compute or upgrading databases. When slowness hits, pinpointing the root-cause becomes a multi-dimensional challenge: is it the cloud, the web, the application, the database, the network, or something deeper?
This white paper uncovers the hidden complexities of cloud performance troubleshooting and the elaborate diagnostic journey required to identify true bottlenecks. Based on our experience, we have shared eight powerful lessons that every IT, SRE, and cloud engineering team must internalize to reliably scale applications in the cloud. You will learn why observability, correlation, and cross-tier visibility matter far more than raw cloud capacity.