Jetty vs Netty
- Netty: to deal with network protocols; non-blocking, high-performance. Used by distributed data processing frameworks like Apache Spark, Presto, Cassandra, Akka; also by gRPC.
- Jetty: a light HTTP servlet container. Similar to Tomcat; SpringBoot uses Tomcat by default but can be changed to use Jetty.
What is a servlet container:
- also known as a web container.
- a servlet receives a request and generate a response
- a Servlet Container manages the lifecycle of servlets, mapping URL to servlet; part of a web server.
- examples: Tomcat, GlassFish, JBoss, etc.
- Servlet API:
Even though the names of "Netty" and "Jetty" look confusingly similar, they are essentially 2 different things:
- Jetty is a lightweight servlet container, originated from Eclipse, easy to embed within a java application.
- Netty is an asynchronous, event-driven, non-blocking I/O, network application framework. Netty can run inside a servlet container.