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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/10/11 07:38:35 UTC
[GitHub] [dubbo] YsoulM opened a new issue #9017: 启动报warn日志，项目启动正常。
YsoulM opened a new issue #9017:
URL: https://github.com/apache/dubbo/issues/9017
- [ * ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [ * ] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.
### Environment
* Dubbo version: 3.0.3
* Operating System version: centos 7.5
* Java version: 1.8
### Steps to reproduce this issue
dubbo 3.0.3 启动项目时报warn<error state, exporter should not be null>，详细日志见下堆栈。
Pls. provide [GitHub address] to reproduce this issue.
### Expected Result
启动异常
What do you expected from the above steps？
### Actual Result
启动无异常
What actually happens?
If there is an exception, please attach the exception trace:
```
error state, exporter should not be null
java.lang.IllegalStateException: error state, exporter should not be null
at org.apache.dubbo.registry.integration.RegistryProtocol$OverrideListener.doOverrideIfNecessary(RegistryProtocol.java:731)
at org.apache.dubbo.registry.integration.RegistryProtocol$ProviderConfigurationListener.lambda$notifyOverrides$0(RegistryProtocol.java:824)
at java.util.concurrent.ConcurrentHashMap$ValuesView.forEach(ConcurrentHashMap.java:4707)
at org.apache.dubbo.registry.integration.RegistryProtocol$ProviderConfigurationListener.notifyOverrides(RegistryProtocol.java:824)
at org.apache.dubbo.registry.integration.AbstractConfiguratorListener.process(AbstractConfiguratorListener.java:100)
at org.apache.dubbo.configcenter.support.zookeeper.CacheListener.lambda$dataChanged$1(CacheListener.java:107)
at java.util.concurrent.CopyOnWriteArrayList.forEach(CopyOnWriteArrayList.java:891)
at java.util.concurrent.CopyOnWriteArraySet.forEach(CopyOnWriteArraySet.java:404)
at org.apache.dubbo.configcenter.support.zookeeper.CacheListener.dataChanged(CacheListener.java:107)
at org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient$NodeCacheListenerImpl.nodeChanged(CuratorZookeeperClient.java:345)
at org.apache.curator.framework.recipes.cache.NodeCache$4.apply(NodeCache.java:326)
at org.apache.curator.framework.recipes.cache.NodeCache$4.apply(NodeCache.java:320)
at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:100)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
```
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[GitHub] [dubbo] haoyann commented on issue #9017: 启动报warn日志，项目启动正常。
Posted by GitBox <gi...@apache.org>.
haoyann commented on issue #9017:
URL: https://github.com/apache/dubbo/issues/9017#issuecomment-943238375
这是因为这行代码抛出的异常。
https://github.com/apache/dubbo/blob/54b2096f2a3b2ccbb55409c4073324b4dc8753c7/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/integration/RegistryProtocol.java#L740-L743
这是因为你在配置中心添加了一些配置，在服务导出的时候会监听配置中心的数据，然后触发了这段代码，监听触发的时机在往 `bounds` put 数据之前也就是这段代码`final ExporterChangeableWrapper<T> exporter = doLocalExport(originInvoker, providerUrl);`。
其实这并不影响配置的重载，因为添加配置中心监听的时候，会获取配置中心的内容然后刷新 URL。
这里是否可以只打印 WARN，不抛出`IllegalStateException`？
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[GitHub] [dubbo] YsoulM edited a comment on issue #9017: 启动报warn日志，项目启动正常。
Posted by GitBox <gi...@apache.org>.
YsoulM edited a comment on issue #9017:
URL: https://github.com/apache/dubbo/issues/9017#issuecomment-940590726
是的，这个项目是一个provider。
------
Yes, this project is a provider。
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[GitHub] [dubbo] YsoulM commented on issue #9017: 启动报warn日志，项目启动正常。
Posted by GitBox <gi...@apache.org>.
YsoulM commented on issue #9017:
URL: https://github.com/apache/dubbo/issues/9017#issuecomment-940590726
是的，这个项目是一个provider。
--
Yes, this project is a provider。
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[GitHub] [dubbo] CrazyHZM commented on issue #9017: 启动报warn日志，项目启动正常。
Posted by GitBox <gi...@apache.org>.
CrazyHZM commented on issue #9017:
URL: https://github.com/apache/dubbo/issues/9017#issuecomment-939828690
Is there an exposed service?
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