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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/06/18 20:54:19 UTC

[GitHub] [dubbo] caofei88 opened a new issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

caofei88 opened a new issue #8097:
URL: https://github.com/apache/dubbo/issues/8097


   背景：provider起两个服务，使用parameters参数，consumer中去订阅，发现在Directory拿到List<Invoker<T>>与nacos注册中心不一致
   问题定位代码在类DubboCloudRegistry  154行 方法subscribeURLs里面调用
   172的这行代码有问题：
      List<URL> subscribedURLs = this.cloneExportedURLs(subscribedURL, serviceInstances);
   拿到的url对象跟nacos中metadata信息不一致，  多次debug执行会产生不一样的结果 （dubbo 2.7.6 2.7.8同样存在）
   
   demo地址见：git@github.com:caofei88/dubbo-spring-cloud-demo.git
   
    部分provider配置
     provider:                                      
       filter: tracing
       parameters:
         dcCode: "dcCode1"         
    
     provider:
       filter: tracing
       parameters:
         dcCode: "dcCode2"


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[GitHub] [dubbo] AlbumenJ commented on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-864682466


   `DubboCloudRegistry` is in SCA. 
   If you use ServiceDiscovery, it is true that parameters not the same in Nacos. ServiceDiscovery will use MetadataService to fetch real URLs.


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[GitHub] [dubbo] CrazyHZM closed issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
CrazyHZM closed issue #8097:
URL: https://github.com/apache/dubbo/issues/8097


   


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[GitHub] [dubbo] icankeep commented on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
icankeep commented on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-864341720


   I'll take a look at this demo


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[GitHub] [dubbo] icankeep removed a comment on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
icankeep removed a comment on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-864341720


   I'll take a look at this demo


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[GitHub] [dubbo] caofei88 edited a comment on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
caofei88 edited a comment on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-864688404


   > `DubboCloudRegistry` is in SCA.
   > If you use ServiceDiscovery, it is true that parameters not the same in Nacos. ServiceDiscovery will use MetadataService to fetch real URLs.
   
   > `
   ![image](https://user-images.githubusercontent.com/64238311/122701634-43331480-d280-11eb-969a-b50e72fda14f.png)
   ![image](https://user-images.githubusercontent.com/64238311/122701650-4a5a2280-d280-11eb-95ef-e12840add870.png)
   `上面是nacos注册元数据和代码debug截图，请看下


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[GitHub] [dubbo] caofei88 commented on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
caofei88 commented on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-864072436


   这个bug还是比较严重，希望社区有同学尽快跟踪验证并完成修复


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[GitHub] [dubbo] CrazyHZM commented on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
CrazyHZM commented on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-927094558


   See the above reply has been resolved, temporarily close this issue
   @caofei88 


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[GitHub] [dubbo] theonefx commented on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
theonefx commented on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-865951684


   你好，我是 sca 这边的同学，你反馈的这个问题之前确实是存在的。
   之前的逻辑，是为了提升效率，直接使用clone的方式来创建新的 URL。
   在之前的实现中，认为同一个应用的同一个接口，除了ip和端口其他都应该是一致的。这就导致了你现在碰到的这个问题。
   
   最新的实现，参照了 dubbo3 的 revision 机制，会对所有提供的服务计算一个版本号，不再单独使用应用名做分组。应该是能解决这个问题的。
   
   最新的代码已经包含了这部分逻辑，正式版本最近会发布，目前你可以使用 2.2.6-bugfix5-SNAPSHOT 试一下。
   期待你的答复。


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[GitHub] [dubbo] caofei88 commented on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
caofei88 commented on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-864688404


   > `DubboCloudRegistry` is in SCA.
   > If you use ServiceDiscovery, it is true that parameters not the same in Nacos. ServiceDiscovery will use MetadataService to fetch real URLs.
   
   > `
   ![image](https://user-images.githubusercontent.com/64238311/122701634-43331480-d280-11eb-969a-b50e72fda14f.png)
   ![image](https://user-images.githubusercontent.com/64238311/122701650-4a5a2280-d280-11eb-95ef-e12840add870.png)
   `


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[GitHub] [dubbo] caofei88 edited a comment on issue #8097: dubbo2.7.11自定义负载loadBalance，使用provider中parameters参数标签，发现consumer中Directory拿到List>与nacos注册中心不一致

Posted by GitBox <gi...@apache.org>.
caofei88 edited a comment on issue #8097:
URL: https://github.com/apache/dubbo/issues/8097#issuecomment-864688404


   > `DubboCloudRegistry` is in SCA.
   > If you use ServiceDiscovery, it is true that parameters not the same in Nacos. ServiceDiscovery will use MetadataService to fetch real URLs.
   
   > `
   ![image](https://user-images.githubusercontent.com/64238311/122701634-43331480-d280-11eb-969a-b50e72fda14f.png)
   ![image](https://user-images.githubusercontent.com/64238311/122701650-4a5a2280-d280-11eb-95ef-e12840add870.png)
   ![image](https://user-images.githubusercontent.com/64238311/122701802-9b6a1680-d280-11eb-9fb6-1feb0cd8cb00.png)
   ![image](https://user-images.githubusercontent.com/64238311/122701824-a45ae800-d280-11eb-8bbf-8fd410b49cc6.png)
   
   `上面是nacos注册元数据和代码debug截图，请看下


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