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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/08/26 07:10:31 UTC
[GitHub] [dubbo] abel533 opened a new issue #8604: 本地调试超时导致forbiden设置
abel533 opened a new issue #8604:
URL: https://github.com/apache/dubbo/issues/8604
- [x] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [x] 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: 2.7
* Operating System version: Windows 10
* Java version: 11.0.5
>用的 spring cloud alibaba, nacos 1.x
### Steps to reproduce this issue
A->B 两个服务，如果A调用B服务超时（例如debug时），会把 RegistryDirectory 中的 forbidden 设置 true。
B现在仍然在正常提供服务，但是因为A认为B挂了，就老死不相往来。。
如果把B下线再上线，此时A刷新invoker会把 forbidden 设置 false，就又可以连接了。
A是否应该有策略根据 forbidden = true 定期尝试服务是否可用。
在开发环境中debug时，这个问题由于断点超时，非常常见，体验非常差。
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[GitHub] [dubbo] abel533 commented on issue #8604: 本地调试超时导致forbiden设置
Posted by GitBox <gi...@apache.org>.
abel533 commented on issue #8604:
URL: https://github.com/apache/dubbo/issues/8604#issuecomment-908084754
补充，发现问题在 nacos 30秒的定时任务
```
"Nacos-Watch-Task-Scheduler-1" Id=95 TIMED_WAITING on io.netty.bootstrap.AbstractBootstrap$PendingRegistrationPromise@e6c8d28
at java.base@11.0.5/java.lang.Object.wait(Native Method)
- waiting on io.netty.bootstrap.AbstractBootstrap$PendingRegistrationPromise@e6c8d28
at java.base@11.0.5/java.lang.Object.wait(Object.java:462)
at io.netty.util.concurrent.DefaultPromise.await0(DefaultPromise.java:679)
at io.netty.util.concurrent.DefaultPromise.awaitUninterruptibly(DefaultPromise.java:304)
at org.apache.dubbo.remoting.transport.netty4.NettyClient.doConnect(NettyClient.java:134)
at org.apache.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:191)
at org.apache.dubbo.remoting.transport.AbstractClient.send(AbstractClient.java:171)
at org.apache.dubbo.remoting.transport.AbstractPeer.send(AbstractPeer.java:53)
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeChannel.request(HeaderExchangeChannel.java:135)
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeClient.request(HeaderExchangeClient.java:95)
at org.apache.dubbo.rpc.protocol.dubbo.LazyConnectExchangeClient.request(LazyConnectExchangeClient.java:129)
at org.apache.dubbo.rpc.protocol.dubbo.ReferenceCountExchangeClient.request(ReferenceCountExchangeClient.java:91)
at org.apache.dubbo.rpc.protocol.dubbo.DubboInvoker.doInvoke(DubboInvoker.java:105)
at org.apache.dubbo.rpc.protocol.AbstractInvoker.invoke(AbstractInvoker.java:163)
at org.apache.dubbo.rpc.protocol.AsyncToSyncInvoker.invoke(AsyncToSyncInvoker.java:52)
at org.apache.dubbo.rpc.listener.ListenerInvokerWrapper.invoke(ListenerInvokerWrapper.java:78)
at org.apache.dubbo.rpc.filter.GenericImplFilter.invoke(GenericImplFilter.java:125)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:89)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.rpc.protocol.dubbo.filter.FutureFilter.invoke(FutureFilter.java:51)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.rpc.filter.ConsumerContextFilter.invoke(ConsumerContextFilter.java:69)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:83)
at org.apache.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:56)
at org.apache.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:82)
at org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:260)
at org.apache.dubbo.rpc.cluster.interceptor.ClusterInterceptor.intercept(ClusterInterceptor.java:47)
at org.apache.dubbo.rpc.cluster.support.wrapper.AbstractCluster$InterceptorInvokerNode.invoke(AbstractCluster.java:92)
at org.apache.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:88)
at org.apache.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:74)
at org.apache.dubbo.common.bytecode.proxy60.$invoke(proxy60.java)
at com.alibaba.cloud.dubbo.service.DubboMetadataServiceInvocationHandler.invoke(DubboMetadataServiceInvocationHandler.java:48)
at com.sun.proxy.$Proxy196.getExportedURLs(Unknown Source)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.getExportedURLs(DubboCloudRegistry.java:424)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.getTemplateExportedURLs(DubboCloudRegistry.java:324)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.lambda$cloneExportedURLs$6(DubboCloudRegistry.java:288)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry$$Lambda$845/0x0000000100857840.accept(Unknown Source)
at java.base@11.0.5/java.util.ArrayList.forEach(ArrayList.java:1540)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.cloneExportedURLs(DubboCloudRegistry.java:284)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.getExportedURLs(DubboCloudRegistry.java:265)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.subscribeURLs(DubboCloudRegistry.java:240)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.subscribeURLs(DubboCloudRegistry.java:227)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.lambda$subscribeURLs$2(DubboCloudRegistry.java:206)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry$$Lambda$841/0x000000010082b840.accept(Unknown Source)
at java.base@11.0.5/java.lang.Iterable.forEach(Iterable.java:75)
at java.base@11.0.5/java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1085)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.subscribeURLs(DubboCloudRegistry.java:204)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry.lambda$subscribeURLs$0(DubboCloudRegistry.java:194)
at com.alibaba.cloud.dubbo.registry.DubboCloudRegistry$$Lambda$895/0x0000000100934440.onApplicationEvent(Unknown Source)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:404)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:361)
at com.alibaba.cloud.dubbo.autoconfigure.DubboServiceDiscoveryAutoConfiguration.dispatchServiceInstancesChangedEvent(DubboServiceDiscoveryAutoConfiguration.java:175)
at com.alibaba.cloud.dubbo.autoconfigure.DubboServiceDiscoveryAutoConfiguration.lambda$null$0(DubboServiceDiscoveryAutoConfiguration.java:245)
at com.alibaba.cloud.dubbo.autoconfigure.DubboServiceDiscoveryAutoConfiguration$$Lambda$1309/0x0000000100a3fc40.accept(Unknown Source)
at java.base@11.0.5/java.util.Iterator.forEachRemaining(Iterator.java:133)
at java.base@11.0.5/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.base@11.0.5/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658)
at com.alibaba.cloud.dubbo.autoconfigure.DubboServiceDiscoveryAutoConfiguration.lambda$onHeartbeatEvent$1(DubboServiceDiscoveryAutoConfiguration.java:243)
at com.alibaba.cloud.dubbo.autoconfigure.DubboServiceDiscoveryAutoConfiguration$$Lambda$1308/0x0000000100a3f840.accept(Unknown Source)
at org.springframework.beans.factory.ObjectProvider.ifAvailable(ObjectProvider.java:93)
at com.alibaba.cloud.dubbo.autoconfigure.DubboServiceDiscoveryAutoConfiguration.onHeartbeatEvent(DubboServiceDiscoveryAutoConfiguration.java:240)
at jdk.internal.reflect.GeneratedMethodAccessor541.invoke(Unknown Source)
at java.base@11.0.5/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base@11.0.5/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:305)
at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:190)
at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:153)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:404)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:361)
at com.alibaba.cloud.nacos.discovery.NacosWatch.nacosServicesWatch(NacosWatch.java:190)
at com.alibaba.cloud.nacos.discovery.NacosWatch$$Lambda$1149/0x0000000100b7f840.run(Unknown Source)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at java.base@11.0.5/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base@11.0.5/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at java.base@11.0.5/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at java.base@11.0.5/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base@11.0.5/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base@11.0.5/java.lang.Thread.run(Thread.java:834)
Number of locked synchronizers = 2
- java.util.concurrent.ThreadPoolExecutor$Worker@f9cd1e6
- java.util.concurrent.locks.ReentrantLock$NonfairSync@231f2405
```
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[GitHub] [dubbo] abel533 closed issue #8604: 本地调试超时导致forbiden设置
Posted by GitBox <gi...@apache.org>.
abel533 closed issue #8604:
URL: https://github.com/apache/dubbo/issues/8604
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[GitHub] [dubbo] DevenWen commented on issue #8604: 本地调试超时导致forbiden设置
Posted by GitBox <gi...@apache.org>.
DevenWen commented on issue #8604:
URL: https://github.com/apache/dubbo/issues/8604#issuecomment-907087442
这看起来是一个保护性机制，在生产环境中这样的实现应该没问题。A 在不清楚 B 是否可用的情况下，最好的策略还是 forbidden 。不过我也觉得这个功能可以配置化。
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[GitHub] [dubbo] abel533 commented on issue #8604: 本地调试超时导致forbiden设置
Posted by GitBox <gi...@apache.org>.
abel533 commented on issue #8604:
URL: https://github.com/apache/dubbo/issues/8604#issuecomment-906849292
补充：调用 spring-cloud-starter-dubbo 中的 `DubboMetadataService` 超时（或由于存在断点，其他启动的服务调用该接口超时）
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