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README
Apache-2.0

DeFiBus(Decentralized Financial Message Bus) -- 分布式金融级消息总线

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       DeFiBus=RPC+MQ,是基于开源消息中间件打造的安全可控的分布式金融级消息总线。DeFiBus不仅提供了RPC同步调用,还提供了MQ的异步事件通知、事件组播和广播等常用服务调用和消息模式,同时增加了应用多中心多活、服务就近、灰度发布等分布式场景下的高可用能力。在对于机器故障的容错能力方面的增强,也让消息总线的服务更加稳定可靠,为业务提供7x24的服务。

整体架构

architecture1

architecture2

DeFiBus主要包括以下几个组件(模块):

  • Broker:通过轻量的Topic和Queue机制提供消息存储功能。Broker定期将Topic信息上报到NameServer中,同集群中的Broker实例上报的NameServer必须保持一致,避免路由信息不一致。

  • NameServer:NameServer提供Topic的发现和路由,每一个NameServer接受Broker上报的Topic信息,并维护Topic的路由信息供客户端查询。

  • Sync:NameServer的数据一致性服务,全局唯一。

  • GSL:全局服务定位(Global Service Location)服务提供服务级别的路由发现。服务可以部署在不同的区域(比如不同的数据中心、逻辑分区等),服务请求方在请求某一个具体服务时,无需关注服务部署的区域,GSL能够根据服务发现规则自动定位到具体的服务,将服务信息返回给客户端。

  • SGS:服务治理系统(Service Government System)负责全局的服务管理,包括服务的申请、服务部署规划、服务下线等服务全生命周期的管理。在DeFiBus中,服务与Topic一一对应,Topic的名称由对应的服务按照一定的规则来命名。Topic的创建、更新和删除由SGS统一管理。SGS在服务的部署区域对应的Broker集群中创建Topic之后,将更新全局服务路由数据,供GSL定位服务使用。

  • Proxy:服务代理(Proxy)提供TCP/HTTP接入方式,同时允许按照协议规范开发的C、GO、Python等其他语言客户端的接入。

  • ConfigCenter:配置中心,提供HTTP接入方式,比如Namesrv的寻址以及其他配置。

  • ACL:访问控制服务,TOPIC级别的IP访问控制,提供黑白名单功能。

服务和Topic的定义

       DeFiBus把服务和Topic做了一一对应,每个服务必须对应一个Topic。Topic根据服务的唯一ID和服务的部署区域来命名。每个服务需要有服务的唯一标识,可以用数字ID或者字符串来表示。每个部署区域使用3位长度的字符串(限数字和字母构成)表示。
Topic按照如下格式来命名:

[区域代码]-[服务唯一ID]

比如,余额查询服务的服务ID为20190001,部署在“A10”这个区域,那么该服务在A10区域的Topic就命名为“A10-20190001”。

特性列表:

Quick Start

DeFiBus的安装部署流程请参考:《DeFiBus使用指引》
examples模块中提供了最佳实践样例:defibus-examples

License

DeFiBus is licensed under Apache License.

非常感谢以下项目对开源做出的贡献

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简介

DeFiBus=RPC+MQ,是基于开源消息中间件打造的安全可控的分布式金融级消息总线。DeFiBus不仅提供了RPC同步调用,还提供了MQ的异步事件通知、事件组播和广播等常用服务调用和消息模式,同时增加了应用多中心多活、服务就近、灰度发布等分布式场景下的高可用能力。在对于机器故障的容错能力方面的增强,也让消息总线的服务更加稳定可靠,为业务提供7x24的服务。 展开 收起
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