How to Move Fast Without Breaking Things
summary
Demonstrates using Lightrun to inspect live systems with non‑breaking snapshots, injected logs and method‑duration metrics while idle overhead is near zero. Builds a Node + React front end with a Spring Boot backend to reproduce a Netflix‑style bug, uses conditional snapshots to capture a single user’s request, and discovers a cache corruption caused by a Spring @Cacheable gotcha (annotations only applied when called from another class). Shows sandboxed actions, PII masking, tagging, and cloud or on‑prem installs.
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chapters (7)
- 0:00Start
- 8:40But Debuggers aren't the Right tool...
- 9:22They can't Cross Server Boundaries
- 9:36They Can't Handle Different Languages
- 10:42Why do APMs Impact Performance?
- 19:58Front End JavaScript with NodeJS
- 20:35The Backend is Spring Boot
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