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Vertx Basics

S
Souvik Maji

Vert.x is a reactive application framework for the JVM that is resource efficient, concurrent, asynchronous, flexible, simple, and has a mature ecosystem. It was created in 2011 by VMWare and is now maintained by the Eclipse Foundation. Vert.x uses event-driven architecture with non-blocking code and message passing between single-threaded verticle units to provide high performance and scalability.

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Vert.x Reactiveapplications on the JVM
Vert.x Created by VMWare Currently maintained by the Eclipse Foundation. 10 years old. Created in 2011 History
Features Resource e ffi cient Concurrent and asynchronous Flexible Simple Mature Ecosystem
Hello from Vert.x import io.vertx.core.AbstractVerticle; public class Server extends AbstractVerticle { public void start() { vertx.createHttpServer().requestHandler(req -> { req.response() .putHeader("content-type", "text/plain") .end("Hello from Vert.x!"); }).listen(8080); } }
Core Concepts Verticle Vert.x instances Event Bus JVMJVMJVM JVM JAR/ Vertx Instance Verticle 1 Verticle 2 Verticle 3
Programming Model Event loop Based (Similar to Node.js) Event Handlers
Programming Model Small set of threads per vertx instance Verticles are executed using the same thread Message passing communication using the event bus.
Vert.x Core TCP/SSL, UDP Client and Servers HTTP/HTTPS Client and Servers Web sockets Distributed Event bus access DNS File System Logging Etc
Verticle Execution unit of vertx Single threaded - less scope for race condition Verticles communicate by message passing Actor model Should not block the event loop
Event Bus Allows verticles to talk to each other. Works cross language. Works across the cluster. Supports Point to point, Request/Response or PubSub model. Pass strings, bu ff ers, primitive types or JSON
Benchmarks Framework Package size (MB) Startup time (ms) GET (over 5 min) POST (over 10 min) total failed mean (ms) throughput (req/s) total failed mean (ms) throughput (req/s) Spring Boot / Tomcat 14 6905 200000 0 274 685 200000 0 232 814 Spring Boot / Jetty 13 6905 180000 196 300 590 200000 0 229 817 Spring Boot / Undertow 14 6905 82926 12 702 277 200000 0 226 824 vertx 5.1 200 200000 0 258 739 200000 0 210 891
Benchmarks
References Wikipedia: https://en.wikipedia.org/wiki/Vert.x O ffi cial Docs: https://vertx.io/ Source Code: https://github.com/eclipse-vertx/vert.x Collection of vertx resources: https://github.com/vert-x3/vertx-awesome

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Vertx Basics

  • 2. Vert.x Created by VMWare Currently maintained by the Eclipse Foundation. 10 years old. Created in 2011 History
  • 3. Features Resource e ffi cient Concurrent and asynchronous Flexible Simple Mature Ecosystem
  • 4. Hello from Vert.x import io.vertx.core.AbstractVerticle; public class Server extends AbstractVerticle { public void start() { vertx.createHttpServer().requestHandler(req -> { req.response() .putHeader("content-type", "text/plain") .end("Hello from Vert.x!"); }).listen(8080); } }
  • 5. Core Concepts Verticle Vert.x instances Event Bus JVMJVMJVM JVM JAR/ Vertx Instance Verticle 1 Verticle 2 Verticle 3
  • 6. Programming Model Event loop Based (Similar to Node.js) Event Handlers
  • 7. Programming Model Small set of threads per vertx instance Verticles are executed using the same thread Message passing communication using the event bus.
  • 8. Vert.x Core TCP/SSL, UDP Client and Servers HTTP/HTTPS Client and Servers Web sockets Distributed Event bus access DNS File System Logging Etc
  • 9. Verticle Execution unit of vertx Single threaded - less scope for race condition Verticles communicate by message passing Actor model Should not block the event loop
  • 10. Event Bus Allows verticles to talk to each other. Works cross language. Works across the cluster. Supports Point to point, Request/Response or PubSub model. Pass strings, bu ff ers, primitive types or JSON
  • 11. Benchmarks Framework Package size (MB) Startup time (ms) GET (over 5 min) POST (over 10 min) total failed mean (ms) throughput (req/s) total failed mean (ms) throughput (req/s) Spring Boot / Tomcat 14 6905 200000 0 274 685 200000 0 232 814 Spring Boot / Jetty 13 6905 180000 196 300 590 200000 0 229 817 Spring Boot / Undertow 14 6905 82926 12 702 277 200000 0 226 824 vertx 5.1 200 200000 0 258 739 200000 0 210 891
  • 13. References Wikipedia: https://en.wikipedia.org/wiki/Vert.x O ffi cial Docs: https://vertx.io/ Source Code: https://github.com/eclipse-vertx/vert.x Collection of vertx resources: https://github.com/vert-x3/vertx-awesome