configuration service provider reference

ġ.2 Dubbo Service registration and discovery process Dubbo The core domain object is Invoker, The consumer proxy object is proxy, Packaged Invoker Call to The server proxy object is a Invoker, He passed exporter packing, When the server receives the call request, adopt exporter find Invoker,Invoker To actually execute the user's business logic. įrom Dubbo From the perspective of core domain objects, We quote Dubbo Official documentation, As shown in the figure below. Is briefly described in combination with the above figure rpc Call the process ：įrom D ubbo From a layered perspective, The detailed sequence diagram is as follows, The blue part is the service consumer, The light green part is the service provider, The sequence diagram starts from the consumer once D ubbo Method call begins, To the end of the server local method execution. , Cross language support through serialization, Support cross language rpc call ĭubbo The purpose of such layering is to realize the decoupling between layers, Each layer defines the interface specification, It can also be customized according to different business needs 、 Load different implementations, It's highly scalable. Serialize： Abstract serialization model, Compatible with a variety of serialization frameworks, Include ：fastjson、fst、hessian2、kryo、kryo2、protobuf etc. Transport： Abstract transport layer model, compatible netty、mina、grizzly And other communication frameworks Protocol： encapsulation RPC Call interface, Manage the lifecycle of the calling entity Įxchange： Encapsulate request response patterns, Synchronous to asynchronous Monitor： Define monitoring services, Load monitoring implementation provider

Registry： Responsible for the definition of registration services and the loading of implementation classes Ĭluster： Only consumers have such a layer, Responsible for packaging multiple service providers into one ‘ Big providers ’, Load balancing 、 The road has equal expansion points Proxy： It is mainly responsible for generating proxy objects for consumers and providers, Load frame function, For example, the provider filter chain, The extension point Service： User defined interfaces and implementation classes Ĭonfig： Responsible for parsing D ubbo Defined configuration, Such as annotations and xml To configure, Various parameters （ Quote from Duboo Development of guidelines - Framework design document ）Īs shown in the figure D ubbo Realized RPC Integral score 10 layer ：service、config、proxy、registry、cluster、monitor、protocol、exchange、transport、serialize.

Let's start with the following figure Dubbo Layered design concept ： One 、Dubbo Overview of layered overall design I author ：vivo Internet server team -Wang Genfu

Configuration service provider reference