Nacos 做到 AP 协 议的关键。  存储模块：解决数据持久化、非持久化存储，解决数据分片问题。 插件  Nameserver：解决 Namespace 到 ClusterID 的路由问题，解决用户环境与 Nacos 物理环境 映射问题。  CMDB：解决元数据存储，与三方 CMDB 系统对接问题，解决应用，人，资源关系。  Metrics：暴露标准 Metrics 数据，方便与三方监控系统打通。 节点都可以接收到读写请求。所有的 Distro 协议的请 求场景主要分为三种情况： 1. 当该节点接收到属于该节点负责的实例的写请求时，直接写入。 2. 当该节点接收到不属于该节点负责的实例的写请求时，将在集群内部路由，转发给对应的节点， 从而完成读写。 3. 当该节点接收到任何读请求时，都直接在本机查询并返回（因为所有实例都被同步到了每台机 器上）。 Distro 协议作为 Nacos 的内嵌临时实例⼀ 可能是⼀个企业或者独立的个体，这个数 据⼀般情况下不会透传到服务注册中心。⼀个用户账号可以新建多个命名空间，每个命名空间对应 ⼀个客户端实例，这个命名空间对应的注册中心物理集群是可以根据规则进行路由的，这样可以让 注册中心内部的升级和迁移对用户是无感知的，同时可以根据用户的级别，为用户提供不同服务级 别的物理集群。再往下是服务分组和服务名组成的二维服务标识，可以满足接口级别的服务隔离。 Nacos

model. You can think of this as a small library or a set of utilities that an application can use to route and handle requests. The big difference with annotated controllers is that the application is in WebFlux includes WebFlux.fn, a lightweight functional programming model in which functions are used to route and handle requests and contracts are designed for immutability. It is an alternative to the annotation-based major difference that router functions provide not just data, but also behavior. RouterFunctions.route() provides a router builder that facilitates the creation of routers, as the following example shows:

whole. Message Format RSocket messages contain data and metadata. Metadata can be used to send a route, a security token, etc. Data and metadata can be formatted differently. Mime types for each are declared requests on a given connection. While all messages can have metadata, typically metadata such as a route are per-request and therefore only included in the first message on a request, i.e. with one of the applications: • Composite Metadata-- multiple, independently formatted metadata entries. • Routing — the route for a request. 1.2. Java Implementation The Java implementation for RSocket is built on Project

MVC includes WebMvc.fn, a lightweight functional programming model in which functions are used to route and handle requests and contracts are designed for immutability. It is an alternative to the annotation-based major difference that router functions provide not just data, but also behavior. RouterFunctions.route() provides a router builder that facilitates the creation of routers, as the following example shows: servlet.function.RouterFunctions.route; PersonRepository repository = ... PersonHandler handler = new PersonHandler(repository); RouterFunction route = route() .GET("/person/{id}", a

sent to a particular address, that has both ANYCAST and MULTICAST routing types enable, it will route a copy of the message to one of the ANYCAST queues and to all of the MULTICAST queues. However consumer the exclusive flag can be enabled on the queue. When exclusive is set to true the queue will route messages to the a single active consumer. When the active consumer that is being routed to is detached > 0 route>trueroute> -1

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sent to a particular address, that has both ANYCAST and MULTICAST routing types enable, it will route a copy of the message to one of the ANYCAST queues and to all of the MULTICAST queues. However consumer the exclusive flag can be enabled on the queue. When exclusive is set to true the queue will route messages to the a single active consumer. When the active consumer that is being routed to is detached > 0 route>trueroute> -1

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sent to a particular address, that has both ANYCAST and MULTICAST routing types enable, it will route a copy of the message to one of the ANYCAST queues and to all of the MULTICAST queues. However consumer the exclusive flag can be enabled on the queue. When exclusive is set to true the queue will route messages to the a single active consumer. When the active consumer that is being routed to is detached > 0 route>trueroute> -1

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sent to a particular address, that has both ANYCAST and MULTICAST routing types enable, it will route a copy of the message to one of the ANYCAST queues and to all of the MULTICAST queues. However consumer the exclusive flag can be enabled on the queue. When exclusive is set to true the queue will route messages to the a single active consumer. When the active consumer that is being routed to is detached > 0 route>trueroute> -1

0 码力 | 317 页 | 4.82 MB | 1 年前

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sent to a particular address, that has both ANYCAST and MULTICAST routing types enable, it will route a copy of the message to one of the ANYCAST queues and to all of the MULTICAST queues. However consumer the exclusive flag can be enabled on the queue. When exclusive is set to true the queue will route messages to the a single active consumer. When the active consumer that is being routed to is detached > 0 route>trueroute> -1

0 码力 | 539 页 | 5.24 MB | 1 年前

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sent to a particular address, that has both ANYCAST and MULTICAST routing types enable, it will route a copy of the message to one of the ANYCAST queues and to all of the MULTICAST queues. However consumer the exclusive flag can be enabled on the queue. When exclusive is set to true the queue will route messages to the a single active consumer. When the active consumer that is being routed to is detached > 0 route>trueroute> -1

0 码力 | 534 页 | 5.23 MB | 1 年前

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