Helidon - Microservices on Modern Java
summary
Helidon 4 (Alpha 5) ships a new Helidon Nima web server built for Project Loom virtual threads, creates and destroys millions of virtual threads in benchmarks and achieves throughput comparable to raw Netty (notably strong on HTTP/2 multiplexing). It supports HTTP/1.1, HTTP/2, gRPC and WebSockets, runs MicroProfile apps with almost no change, and offers JAR, jlink and GraalVM packaging. Caveats: synchronized blocks, certain native or filesystem calls and thread‑local caching can pin carriers and hurt scalability.
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chapters (8)
- 0:00Start
- 2:09Helidon Programming Models
- 4:50Eclipse MicroProfile in Helidon MP
- 9:04Helidon Status
- 13:30Virtual Threads scheduling onto Platform Threads
- 16:39Virtual Threads new APIs
- 25:07Reactive vs Blocking
- 35:44Lessons learned
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