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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2022/10/26 02:18:40 UTC
[GitHub] [dubbo] AlbumenJ opened a new issue, #10831: Provide ScopeModel
AlbumenJ opened a new issue, #10831:
URL: https://github.com/apache/dubbo/issues/10831
FrameworkModel -> ApplicationModel -> ModuleModel，中间的映射都是 1:N 的
抽象这三个能力是为了实现 Dubbo 的多实例支持，FrameworkModel 是实现类似 JVM 租户级别的隔离，ApplicationModel 是为了实现一个机器上发布多个应用（如 demo-application1 和 demo-application2 一起发布），ModuleModel 是为了实现服务生命周期的独立管理（如一个 demo-application 可以由多个 Spring 容器共同提供）。
所以一个 Dubbo 服务是对应到 ModuleModel 上的。
举一个复杂一些的例子，比如:
目前需要发布 DemoInterface1、DemoInterface2、DemoInterface3、DemoInterface4 四个服务
订阅 DemoService1、DemoService2、DemoService3、DemoService4 四个服务
其中 DemoInterface1 和 DemoInterface2 由 demo-application-1 这个应用名发布（而且由 2 个 Spring Context 分别管理），DemoInterface3 和 DemoInterface4 demo-application-2 这个应用名发布 ，DemoService1、DemoService2、DemoService3、DemoService4 由 demo-application-3 这个应用名订阅。此外出于多租户的考虑，DemoInterface1、DemoInterface2、DemoInterface3、DemoInterface4 在 20880 端口和 20881 端口都独立发布，这 8 个服务（多租户 2 * 4 个服务）的实现都不一样。
那么实际上 Scope 的层级结构是：
```
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-1) -> ModuleModel (1.1.1 Spring Context 1) -> DemoInterface1 (bind on 20880)
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-1) -> ModuleModel (1.1.2 Spring Context 2) -> DemoInterface2 (bind on 20880)
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-2) -> ModuleModel (1.2.1 Spring Context) -> DemoInterface3 (bind on 20880)
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-2) -> ModuleModel (1.2.1 Spring Context) -> DemoInterface4 (bind on 20880)
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-3) -> ModuleModel (1.3.1 Spring Context) -> DemoService1
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-3) -> ModuleModel (1.3.1 Spring Context) -> DemoService2
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-3) -> ModuleModel (1.3.1 Spring Context) -> DemoService3
FrameworkModel (1) -> ApplicationModel (1.1 demo-application-3) -> ModuleModel (1.3.1 Spring Context) -> DemoService4
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-1) -> ModuleModel (2.1.1 Spring Context 1) -> DemoInterface1 (bind on 20881)
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-1) -> ModuleModel (2.1.2 Spring Context 2) -> DemoInterface2 (bind on 20881)
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-2) -> ModuleModel (2.2.1 Spring Context) -> DemoInterface3 (bind on 20881)
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-2) -> ModuleModel (2.2.1 Spring Context) -> DemoInterface4 (bind on 20881)
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-3) -> ModuleModel (2.3.1 Spring Context) -> DemoService1
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-3) -> ModuleModel (2.3.1 Spring Context) -> DemoService2
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-3) -> ModuleModel (2.3.1 Spring Context) -> DemoService3
FrameworkModel (2) -> ApplicationModel (2.1 demo-application-3) -> ModuleModel (2.3.1 Spring Context) -> DemoService4
```
上述所有服务独立工作，互相不影响
这一块需要出一个具体的文档来说明
_Originally posted by @AlbumenJ in https://github.com/apache/dubbo/issues/10829#issuecomment-1291402547_
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Re: [I] Provide ScopeModel Related Docs [dubbo]
Posted by "Sakuragi27 (via GitHub)" <gi...@apache.org>.
Sakuragi27 commented on issue #10831:
URL: https://github.com/apache/dubbo/issues/10831#issuecomment-1809751670
请问这块有文档了吗，感觉还是不好理解
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[GitHub] [dubbo] namelessssssssssss commented on issue #10831: Provide ScopeModel Related Docs
Posted by "namelessssssssssss (via GitHub)" <gi...@apache.org>.
namelessssssssssss commented on issue #10831:
URL: https://github.com/apache/dubbo/issues/10831#issuecomment-1498927134
Please assign me.
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Re: [I] Provide ScopeModel Related Docs [dubbo]
Posted by "namelessssssssssss (via GitHub)" <gi...@apache.org>.
namelessssssssssss commented on issue #10831:
URL: https://github.com/apache/dubbo/issues/10831#issuecomment-1809766736
> 请问这块有文档了吗，感觉还是不好理解
https://cn.dubbo.apache.org/zh-cn/blog/1/01/01/dubbo-3-%E4%B8%AD%E7%9A%84%E4%B8%89%E5%B1%82%E9%85%8D%E7%BD%AE%E9%9A%94%E7%A6%BB/
可以参考一下，后边会继续补充
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