Introduction to RPC and a Step-by-Step Guide to Building a Simple RPC Framework

1. Introduction to RPC RPC (Remote Procedure Call) is a protocol that enables a program to request services from a remote computer without needing to understand the underlying network technology, typically relying on transport protocols like TCP or UDP and spanning the transport and application layers.

2. Principles and Frameworks of RPC The article explains the origins of RPC and lists common Java RPC frameworks—Thrift, Dubbo, and Spring Cloud—while also contrasting RPC with message queues. It highlights core technical points such as service exposure, remote proxy communication, and provides a simple implementation example.

3. Step-by-Step Guide to Implement a Simple RPC Building on the previous sections, the tutorial describes how RPC addresses service‑to‑service invocation problems in distributed systems, aiming for seamless local‑like calls, and walks the reader through creating a minimal RPC framework to illustrate the concepts.

The piece is part of the "Big Data Becoming a God" series, which plans to publish over 500 articles; currently more than 60 have been released, covering advanced Java topics like collections, multithreading, synchronization, volatile, concurrent collections, distributed systems, Zookeeper, JVM, and NIO.