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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/11/26 06:34:25 UTC
[GitHub] [dubbo] feng996 opened a new issue #9322: tri使用多注册中心问题
feng996 opened a new issue #9322:
URL: https://github.com/apache/dubbo/issues/9322
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- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
### Environment
* Dubbo version: 3.0.4
* Operating System version: Ubuntu 18.04
* Java version: 11
### Steps to reproduce this issue
consumer引用多注册中心的provider，只有一个provider能使用
debug发现，其他的reference在设置serviceUrls时(ServiceInstancesChangedListener#onEvent)拿不到MetadataInfo
多配置中心没有生效。实际MetadataReportInstance只持有一个MetadataReport。
通过MetadataReportInstance#init发现
```
if (!init.compareAndSet(false, true)) {
return;
}
```
只会init一次
为什么会这么设计呢?
```
DefaultApplicationDeployer#startMetadataCenter里关于配置中心的设置
for (MetadataReportConfig metadataReportConfig : metadataReportConfigs) {
ConfigValidationUtils.validateMetadataConfig(metadataReportConfig);
if (!metadataReportConfig.isValid()) {
logger.info("Ignore invalid metadata-report config: " + metadataReportConfig);
continue;
}
metadataReportInstance.init(metadataReportConfig);
}
```
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[GitHub] [dubbo] feng996 commented on issue #9322: tri使用多注册中心问题
Posted by GitBox <gi...@apache.org>.
feng996 commented on issue #9322:
URL: https://github.com/apache/dubbo/issues/9322#issuecomment-980529487
>
是的，应该是服务发现的问题，接口级可以通过group来区分同名接口的通知，应用级group都是default不可修改，所以就会有通知的问题。
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[GitHub] [dubbo] feng996 commented on issue #9322: tri使用多注册中心问题
Posted by GitBox <gi...@apache.org>.
feng996 commented on issue #9322:
URL: https://github.com/apache/dubbo/issues/9322#issuecomment-979818226
应用级服务发现时，consumer多注册中心使用同名的provider，某个注册中心的服务下线，会通知所有的registry，导致所有的reference都失效。重启后除了这个注册中心的服务可用，其他服务不可用。
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[GitHub] [dubbo] EarthChen commented on issue #9322: tri使用多注册中心问题
Posted by GitBox <gi...@apache.org>.
EarthChen commented on issue #9322:
URL: https://github.com/apache/dubbo/issues/9322#issuecomment-980510016
看你的描述 应该tri 协议导致的把？
因为对于服务注册和发现 不在协议层处理。
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[GitHub] [dubbo] chickenlj commented on issue #9322: tri使用多注册中心问题
Posted by GitBox <gi...@apache.org>.
chickenlj commented on issue #9322:
URL: https://github.com/apache/dubbo/issues/9322#issuecomment-994569793
>if (!init.compareAndSet(false, true)) {
return;
}
该问题将在 3.0.6 版本中修复
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[GitHub] [dubbo] chickenlj commented on issue #9322: tri使用多注册中心问题
Posted by GitBox <gi...@apache.org>.
chickenlj commented on issue #9322:
URL: https://github.com/apache/dubbo/issues/9322#issuecomment-994570158
当前参见 3.0-metadata-refactor 分支
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[GitHub] [dubbo] chickenlj closed issue #9322: tri使用多注册中心问题
Posted by GitBox <gi...@apache.org>.
chickenlj closed issue #9322:
URL: https://github.com/apache/dubbo/issues/9322
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[GitHub] [dubbo] EarthChen edited a comment on issue #9322: tri使用多注册中心问题
Posted by GitBox <gi...@apache.org>.
EarthChen edited a comment on issue #9322:
URL: https://github.com/apache/dubbo/issues/9322#issuecomment-980510016
看你的描述 应该不是 tri 协议导致的把？
因为对于服务注册和发现 不在协议层处理。也就是说，如果描述的现象存在，那就是个共性问题
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