Dev.to
7/14/2026

The original title is "AWS Observability Guide: X-Ray Tracing, CloudWatch Alarms, and Structured Logging"
Original: Instrument Code For Observability | 🏗️ Build An Observable Order Service
Short summary
An AWS Developer Associate exam prep guide covering observability instrumentation with X-Ray, CloudWatch, and structured logging. Explains the three pillars (logs, metrics, traces), X-Ray concepts like segments and annotations vs metadata, and sampling rule configuration. Not AI-related but practical for operations engineers working on AWS.
- •Covers logging vs monitoring vs observability with AWS service mapping (CloudWatch, X-Ray)
- •Details X-Ray tracing concepts: traces, segments, subsegments, annotations vs metadata, sampling rules
- •Includes comparison tables and configuration examples for exam preparation
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