The methods and techniques of building high reliability systems based on the Apache Avro IPC framework in the Java class library

Apache Avro is a data serialization system that provides a data representation method and communication protocol with unrelated language.Avro also contains a module called Avro IPC to build a high -reliability system based on AVRO.This article will introduce how to build a high reliability system with the AVRO IPC framework and provide some Java code examples. 1. Learn Apache Avro IPC: Apache Avro IPC is a remote process call (RPC) framework based on message transmission.It allows different applications to exchange messages on the Internet and call each other.AVRO IPC is based on AVRO's data serialization format, which realizes language irrelevant in this way. 2. Define interface and message protocol: First, we need to define interfaces and message protocols in the system.Use Avro's IDL (interface definition language) to define interfaces and message protocols.The example code is as follows: avdl @namespace("example.namespace") protocol ExampleProtocol { // Define a simple method, accept a string parameter and return an integer int exampleMethod(string input); } 3. Implement interface: According to the interface defined in the previous step, we can implement a specific class for the interface.The example code is as follows: public class ExampleImpl implements ExampleProtocol { @Override public int exampleMethod(String input) { // To realize the specific method logic here // For example, return to the length of the input string return input.length(); } } 4. server implementation: Next, we need to start a AVRO IPC server to accept the client request and call the corresponding method.The example code is as follows: public class Server { public static void main(String[] args) throws Exception { // Create an RPC server Server server = new HttpServer(new ExampleImpl(), 8080); // Start the server server.start(); System.out.println("Server started"); // Waiting for the server to stop server.join(); } } 5. Client call: Finally, we need to write a client program to call the server.The example code is as follows: public class Client { public static void main(String[] args) throws Exception { // Create an RPC client Client client = new SpecificRequestor(ExampleProtocol.class, new URL("http://localhost:8080")); // Call the server method String input = "Hello Avro IPC"; int result = ((ExampleProtocol)client).exampleMethod(input); System.out.println("Result: " + result); } } Through the above steps, we successfully constructed a high -reliability system based on the Apache Avro IPC framework.In this system, the server provides a simple method. The client can send a request to the server through the AVRO IPC protocol and get the result.This architecture can achieve strong communication functions in a distributed system, and provides high reliability and language irrelevant. I hope this article can help you understand how to build a high -reliability system with Apache Avro IPC framework, and the Java code examples provided to help you better understand and use the framework.