Instiq
Chapter 4 · Monitoring and Logging·v2.2.0·Updated 6/14/2026·~10 min

What's changed: In-scope coverage (fix): added a Trusted Advisor best-practice-checks block to §4.3 (closes an Axis-B textbook gap)

4.3Tracing and Unified Observability

Key points

Understand unified observability—X-Ray (distributed tracing), ServiceLens, Synthetics (canaries), Container/Lambda Insights, and CloudTrail. Correlate metrics, logs, and traces to find causes fast.

Unifying the three pillars—metrics, logs, traces—speeds root-cause analysis. X-Ray and CloudWatch enable this.

4.3.1Unified observability

Diagram of unified observability: the three pillars—metrics (CloudWatch), logs (CloudWatch Logs), traces (X-Ray distributed tracing visualizing cross-service latency)—correlated by ServiceLens in one view for root-cause analysis; Synthetics canaries provide outside-in monitoring of endpoints (continuous user-perspective tests); Container Insights/Lambda Insights capture detailed container/serverless metrics; and CloudTrail audits API actions.
Unified observability
  • X-Ray: distributed tracing to visualize cross-service latency/errors and find bottlenecks.
  • ServiceLens: correlates metrics/logs/traces in one view.
  • Synthetics: canaries for outside-in monitoring, continuously testing endpoints as a user.
  • Container/Lambda Insights: collect detailed metrics for containers/serverless. CloudTrail audits APIs.
Exam point

Common on DOP-C02: distributed tracing = X-Ray, correlate 3 pillars = ServiceLens, user-perspective outside-in = Synthetics canaries, container/Lambda detailed metrics = Container/Lambda Insights, API auditing = CloudTrail. Unify metrics/logs/traces to cut MTTR.

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