reactor
- Every Route Registered. Every Request 404'd.
A registered Micronaut route returning 404 under load. The route matched. The controller ran. Mono.zip ate the response.
- Reactor to Mutiny: the operator phrasebook
A field translation guide from Project Reactor to SmallRye Mutiny, from a real 28-API port that compiled and ran.
- flatMap's Second Argument Saved 1.7 Million Requests
Midway through a code review of the reactive pipeline, staring at this line in NeoService.java: .flatMap(neo -> saveAsteroidWithApproaches(sessionId, neo)) That's Flux.flatMap() with one argument. The function. No concurrency limit. Reactor's default: 256 …
- Seven Fixes, Zero Errors
The fix for "JVM dies at 256 MB under load" was not a JVM flag. Part 4 ended with Serial GC — the only GC that fits in 256 MB — serving 4,550 requests before the OOM killer showed up. 81% error rate. Same flags, same container, same load profile. Seven code …