Tag: performance

All the articles with the tag "performance".

• Why an Innocent Logging Filter Crashed Our Spring WebClient: Streaming, Netty, and the 256 KB Trap

  3 Sep, 2026

  · 6 min read

  A production post-mortem on how a common HTTP logging filter caused 500 DataBufferLimitException crashes on large payloads in Spring WebClient, and the mechanics of TCP streaming, Netty ByteBufs, and wiretaps.

• Deep Dive: PostgreSQL Connection Pooling & HikariCP Internals in Spring Boot

  1 Jun, 2026

  · 13 min read

  A highly technical masterclass exploring PostgreSQL's process-per-connection architecture, OS socket constraints, HikariCP's lock-free ConcurrentBag internals, and precision performance tuning for Spring Boot.