S2E7: Advanced AWS Lambda
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S2E7: Advanced AWS Lambda
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About this listen
This discussion covers:
* Error-handling tactics – synchronous vs. asynchronous invocations, DLQs, and why API Gateway sometimes hides your 500s.
* Tracing, logging & metrics – setting up AWS X-Ray and reading traces that flag cold starts, retries and faults.
* Scaling & concurrency – live Java demo shows Lambda spinning up extra instances (watch the function IDs change).
* Versioning, aliases & traffic shifting – when they help, and when they just add risk.
* Cold-start realities – why they now affect less than 1 % of invocations and when provisioned concurrency is (or isn’t) worth the bill.
* State, VPCs, layers & custom runtimes – persist data the right way and plug Lambda into the rest of your stack.
📂 Code from the episode
Grab every demo (Java *and* Python) in the repo:
https://github.com/covertocode/season-2-programming-aws-lambda/tree/main/chapter-8-advanced-aws-lambda
Find us online at covertocode.com.
Hosted by:
- Angela A. @scooterphoenix
- Michael J. @managedkaos
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