"Serverless" Is What J2EE Was Meant To Be
Talkat JCON Europe 2023 · on Tuesday, 2023-06-20· at 13:00· Cinema 9, Im Mediapark 1, 50670 Köln, Germany·
summary
Argues J2EE patterns (EJB lifecycle, pooling, bulkheads, statelessness) map one-to-one to AWS Lambda and modern runtimes, uses Java 17 with Quarkus/Micronaut, CDK for deployment and demoed a live deploy that shows ~3.7s cold start and ~200ms warm responses. Claims serverless reduces CO2 and costs (example: 2 req/s, 100ms, 1GB ≈ $8/month), warns about DB connections and uses RDS Proxy or single-connection patterns, recommends application-scoped beans and treats functions as one invocation one process for migration.
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chapters (13)
- 0:00Intro
- 1:28Why Im not using Java 19
- 4:33Green IT
- 7:55Infinite Budget
- 12:30J2EE
- 15:28EBS
- 18:50EJB
- 22:55Lambda States
- 23:33Lambda Updates
- 29:01Serverless
- 31:48Management Slide
- 35:02Serverless Ideas
- 45:45monolith
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