https://www.pistack.xyz/tags/vertx/ Recent content in Vertx on Pi Stack Hugo en-us Mon, 10 Aug 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-08-10-java-reactive-libraries-project-reactor-rxjava-vertx-guide/ Mon, 10 Aug 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-08-10-java-reactive-libraries-project-reactor-rxjava-vertx-guide/ <h2 id="blocking-threads-are-the-silent-killer-of-java-services">Blocking Threads Are the Silent Killer of Java Services</h2> <p>A single slow database call can pin a 200-thread Tomcat pool, and when one endpoint degrades, the whole application grinds to a halt. Reactive programming flips the model: instead of one thread per request, a handful of event-loop threads process thousands of concurrent requests using non-blocking I/O. Three frameworks dominate this space on the JVM — <strong>Project Reactor</strong>, <strong>RxJava</strong>, and <strong>Eclipse Vert.x</strong> — and choosing the wrong one can lock you into an architecture you will fight for years.</p>