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1, BackgroundWhen the server provides interface services to the outside, whether it is providing HTTP interfaces to the front end or RPC interfaces to other internal servers, it often faces such a problem, that is, how to gracefully solve the verification of various interface parameters?In the early days, when making the HTTP interface provided ...

The previous article explained the use and source code of zookeeper, so this time we continue to understand the relevant contents of dubbo, the golden partner of zookeeper. Of course, dubbo is also a typical rpc framework, so we analyze it one by one from the client and server, and there are a series of subsequent articles. Take your time. SP ...

catalogue     catalogue One background Second RPC 1. How to call other people's remote services? How to call remote services transparently? 1.2} how to encode and decode messages? 1.3 communication 1.4 # why is there a requestID in the message? 2 how to publish your own services? 3. RPC instance analysis in Hadoop 3.1 how is the co ...

Evolution of software architecture The development of software architecture has experienced the evolution process from single architecture, vertical architecture, SOA architecture to micro service architecture. Let's learn about these architectures respectively. Monomer architecture Architecture description All in one Architecture advant ...

Write in front In the java community, some excellent NIO frameworks are netty (netty3.x,netty4.x), Mina, grizzly and dubbo. They have implemented their own NIO server based on dubbo: \ \ protocol and thrift: \ \ protocol. Of course, the underlying layer will directly use the existing NIO framework (after all, the cost of repeatedly building wh ...

Summary record / Zhu Jiqian Recently, I bought a 4-core 16 Tencent cloud lightweight application server, which cost me nearly 400 oceans. I plan to build a pile of docker component clusters. First, I plan to build a redis cluster through docker. I plan to use three ports, 700170027003. Tencent ECS has firewall restrictions, so these six ports n ...

Foreword: in the last blog, I introduced how zookeeper works as the registry of dubbo. There is a very important point. Our program is a distributed application. The service is deployed on several nodes (servers). When consumers call the service, zk returns a node list to dubbo, but dubbo only selects one server, So which one will it choose? Th ...

Spring MVC annotation parameter verification support Introduction: JSR provides a set of API for Bean verification specification, which is maintained in the package javax validation. Constraints. The specification uses a set of concise and easy-to-use annotations on attribute or method parameters or classes for parameter verification. During ...

preface reference material: <Spring Microservices in Action> Principles and practice of Spring Cloud Alibaba microservice "Spring cloud framework development tutorial in Silicon Valley of station B" Zhou Yang Apache Dubbo is a distributed service framework, which mainly realizes high-performance and transparent calls bet ...

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it catalogue preface 1, Brain map of Dubbo SPI & Java SPI 2, Java SPI 1. Code application 2. Source code analysis 3. Problem analysis summary preface What is SPI? What problems ...