Distributed Tracing & TraceQL
Metrics say p95 is high. Traces show *which* span — SNS publish vs S3 put — ate the time. TraceQL lets you ask about the *shape* of the request tree, not just attributes. Audience: Final-year students and early-career engineers (0–3 years). Prerequisites: obs-02-metrics-and-logs System under observation: api (Express) → SNS → SQS → worker → S3 (+ Postgres/Redis from phase 07) Stack: Grafana ·…
Taught by Amit Ranjan
What you'll learn
- Instrument SpanKinds correctly across api and worker
- Propagate context across SNS→SQS message attributes
- Choose a sampling strategy and explain what TraceQL cannot see
- Write TraceQL attribute and structural queries
Course content
1 sections · 4 lessons · 1h 47m
1.Module materials
4 lessons- Session lesson28mPreviewOpen preview
- Exercises27m
- Session guide26m
- Facilitator notes26m
Instructor
Amit Ranjan
Industry practitioners teaching AI-augmented software engineering.
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