Application monitoring—often referred to as Application Performance Monitoring (APM)—is the process of using software tools to track the health, availability, and performance of applications in real time. Its primary goal is to detect and fix software bugs, system slowdowns, and server crashes before they impact the end-user experience or hurt a business’s revenue. It goes beyond basic infrastructure tracking (like checking if a server is turned on) to provide code-level visibility into exactly how an application behaves. Key Telemetry Data Tracked
APM software relies on three main types of telemetry data, commonly known as M.E.T. or the pillars of observability:
Metrics: Numerical data measuring resource consumption over time, such as CPU utilization, memory usage, and request throughput.
Events / Logs: Chronological text records generated by the application that provide details about specific occurrences, failures, or user actions.
Traces: Digital breadcrumbs that track the path of a user request across a complex, multi-service backend architecture to isolate where delays happen. Core Metrics Monitored Application monitoring – Dynatrace
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