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Posted to notifications@dubbo.apache.org by "chenglutao (via GitHub)" <gi...@apache.org> on 2023/03/16 08:35:25 UTC
[GitHub] [dubbo] chenglutao opened a new issue, #11852: dubbo 3.1.7 Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
chenglutao opened a new issue, #11852:
URL: https://github.com/apache/dubbo/issues/11852
dubbo version: 3.1.7
nacos version:2.2.0
yml
`
spring:
application:
name: rpc
server:
port: 9001
dubbo:
application:
name: rpc
qos-enable: true
qos-port: 44444
qos-accept-foreign-ip: false
protocol:
name: dubbo
port: -1
registry:
address: nacos://localhost:8848?username=nacos&password=nacos
config-center:
address: nacos://localhost:8848?username=nacos&password=nacos
metadata-report:
address: nacos://localhost:8848?username=nacos&password=nacos
`
`
spring:
application:
name: consumer
server:
port: 9000
dubbo:
application:
name: consumer
qos-accept-foreign-ip: false
qos-enable: true
qos-port: 33333
scan:
base-packages: com.xxx
protocol:
name: dubbo
port: -1
registry:
address: nacos://localhost:8848?username=nacos&password=nacos
config-center:
address: nacos://localhost:8848?username=nacos&password=nacos
metadata-report:
address: nacos://localhost:8848?username=nacos&password=nacos
`
2023-03-16 16:23:14.063 ERROR 15300 --- [ncesChangeEvent] .d.r.c.ServiceDiscoveryRegistryDirectory : [DUBBO] Failed to refer invoker for interface:interface com.modules.service.DemoService,url:(DefaultServiceInstance{serviceName='rpc', host='172.0.4.184', port=9001, enabled=true, healthy=true, metadata={preserved.register.source=SPRING_CLOUD}}, service{name='com.modules.service.DemoService',group='null',version='null',protocol='null',port='9001',params={},})Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null, dubbo version: 3.1.7, current host: 172.0.4.184, error code: 4-3. This may be caused by , go to https://dubbo.apache.org/faq/4/3 to find instructions.
java.lang.IllegalStateException: Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
at org.apache.dubbo.common.extension.ExtensionLoader.createExtension(ExtensionLoader.java:806) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.common.extension.ExtensionLoader.getExtension(ExtensionLoader.java:561) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.common.extension.ExtensionLoader.getExtension(ExtensionLoader.java:535) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.toInvokers(ServiceDiscoveryRegistryDirectory.java:352) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.refreshInvoker(ServiceDiscoveryRegistryDirectory.java:254) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.refreshOverrideAndInvoker(ServiceDiscoveryRegistryDirectory.java:182) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.notify(ServiceDiscoveryRegistryDirectory.java:176) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.lambda$notifyAddressChanged$9(ServiceInstancesChangedListener.java:417) [dubbo-3.1.7.jar:3.1.7]
at java.util.concurrent.ConcurrentHashMap.forEach(ConcurrentHashMap.java:1597) ~[na:1.8.0_331]
at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.notifyAddressChanged(ServiceInstancesChangedListener.java:410) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.doOnEvent(ServiceInstancesChangedListener.java:217) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.onEvent(ServiceInstancesChangedListener.java:113) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.nacos.NacosServiceDiscovery.handleEvent(NacosServiceDiscovery.java:231) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.nacos.NacosServiceDiscovery.access$000(NacosServiceDiscovery.java:64) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.nacos.NacosServiceDiscovery$NacosEventListener.onEvent(NacosServiceDiscovery.java:202) ~[dubbo-3.1.7.jar:3.1.7]
at com.alibaba.nacos.client.naming.event.InstancesChangeNotifier.onEvent(InstancesChangeNotifier.java:126) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.client.naming.event.InstancesChangeNotifier.onEvent(InstancesChangeNotifier.java:42) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.common.notify.DefaultPublisher.lambda$notifySubscriber$0(DefaultPublisher.java:199) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.common.notify.DefaultPublisher.notifySubscriber(DefaultPublisher.java:206) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.common.notify.DefaultPublisher.receiveEvent(DefaultPublisher.java:190) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.common.notify.DefaultPublisher.openEventHandler(DefaultPublisher.java:112) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.common.notify.DefaultPublisher.run(DefaultPublisher.java:95) ~[nacos-client-2.2.0.jar:na]
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_331]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_331]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_331]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_331]
at org.apache.dubbo.common.beans.support.InstantiationStrategy.instantiate(InstantiationStrategy.java:94) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.common.extension.ExtensionLoader.createExtensionInstance(ExtensionLoader.java:811) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.common.extension.ExtensionLoader.createExtension(ExtensionLoader.java:772) ~[dubbo-3.1.7.jar:3.1.7]
... 22 common frames omitted
Caused by: java.lang.NoClassDefFoundError: javax/ws/rs/ProcessingException
at org.apache.dubbo.rpc.protocol.rest.RestProtocol.<init>(RestProtocol.java:80) ~[dubbo-3.1.7.jar:3.1.7]
... 29 common frames omitted
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[GitHub] [dubbo] chenglutao commented on issue #11852: dubbo 3.1.7 Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
Posted by "chenglutao (via GitHub)" <gi...@apache.org>.
chenglutao commented on issue #11852:
URL: https://github.com/apache/dubbo/issues/11852#issuecomment-1473601247
dubbo 和 Spring Cloud Alibaba 的分组要分开，不要使用同一个分组名，这样会导致错误订阅到 Spring Cloud 的应用，使用了 Rest 协议
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[GitHub] [dubbo] AlbumenJ commented on issue #11852: dubbo 3.1.7 Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
Posted by "AlbumenJ (via GitHub)" <gi...@apache.org>.
AlbumenJ commented on issue #11852:
URL: https://github.com/apache/dubbo/issues/11852#issuecomment-1473194516
Please check if your nacos cluster was shared with apps written with spring cloud alibaba.
If so, please seprate them into several namespaces.
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[GitHub] [dubbo] chenglutao closed issue #11852: dubbo 3.1.7 Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
Posted by "chenglutao (via GitHub)" <gi...@apache.org>.
chenglutao closed issue #11852: dubbo 3.1.7 Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
URL: https://github.com/apache/dubbo/issues/11852
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[GitHub] [dubbo] mytang0 commented on issue #11852: dubbo 3.1.7 Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
Posted by "mytang0 (via GitHub)" <gi...@apache.org>.
mytang0 commented on issue #11852:
URL: https://github.com/apache/dubbo/issues/11852#issuecomment-1471586780
<img width="722" alt="image" src="https://user-images.githubusercontent.com/29346818/225570694-ef889c4e-04d6-4aa9-a0c0-1188190817d3.png">
Check the dependencies.
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[GitHub] [dubbo] chenglutao commented on issue #11852: dubbo 3.1.7 Extension instance (name: rest, class: interface org.apache.dubbo.rpc.Protocol) couldn't be instantiated: null
Posted by "chenglutao (via GitHub)" <gi...@apache.org>.
chenglutao commented on issue #11852:
URL: https://github.com/apache/dubbo/issues/11852#issuecomment-1471683790
> <img alt="image" width="722" src="https://user-images.githubusercontent.com/29346818/225570694-ef889c4e-04d6-4aa9-a0c0-1188190817d3.png">
>
> Check the dependencies.
新增依赖
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-client</artifactId>
<version>3.0.20.Final</version>
</dependency>
解决了上述报错又有了新的错误，我想这是Dubbo RestProtocol机制导致的吧？
而我并不使用Dubbo RestProtocol机制，那么我应该怎么解决这个问题？
2023-03-16 18:03:27.850 ERROR 11800 --- [ternal.notifier] .d.r.c.ServiceDiscoveryRegistryDirectory : [DUBBO] Failed to refer invoker for interface:interface com.rpc.modules.service.DemoService,url:(DefaultServiceInstance{serviceName='rpc', host='172.0.4.184', port=9001, enabled=true, healthy=true, metadata={preserved.register.source=SPRING_CLOUD}}, service{name='com.rpc.modules.service.DemoService',group='null',version='null',protocol='null',port='9001',params={},})RESTEASY004600: You must use at least one, but no more than one http method annotation on: public abstract java.lang.String com.rpc.modules.service.DemoService.abc(), dubbo version: 3.1.7, current host: 172.0.4.184, error code: 4-3. This may be caused by , go to https://dubbo.apache.org/faq/4/3 to find instructions.
java.lang.RuntimeException: RESTEASY004600: You must use at least one, but no more than one http method annotation on: public abstract java.lang.String com.rpc.modules.service.DemoService.abc()
at org.jboss.resteasy.client.jaxrs.ProxyBuilder.createClientInvoker(ProxyBuilder.java:87) ~[resteasy-client-3.0.20.Final.jar:3.0.20.Final]
at org.jboss.resteasy.client.jaxrs.ProxyBuilder.proxy(ProxyBuilder.java:63) ~[resteasy-client-3.0.20.Final.jar:3.0.20.Final]
at org.jboss.resteasy.client.jaxrs.ProxyBuilder.build(ProxyBuilder.java:131) ~[resteasy-client-3.0.20.Final.jar:3.0.20.Final]
at org.jboss.resteasy.client.jaxrs.internal.ClientWebTarget.proxy(ClientWebTarget.java:74) ~[resteasy-client-3.0.20.Final.jar:3.0.20.Final]
at org.apache.dubbo.rpc.protocol.rest.RestProtocol.doRefer(RestProtocol.java:162) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.protocol.AbstractProxyProtocol.protocolBindingRefer(AbstractProxyProtocol.java:110) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.protocol.AbstractProtocol.refer(AbstractProtocol.java:134) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:77) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.protocol.ProtocolSecurityWrapper.refer(ProtocolSecurityWrapper.java:107) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.qos.protocol.QosProtocolWrapper.refer(QosProtocolWrapper.java:83) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:74) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper.refer(ProtocolSerializationWrapper.java:52) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java) ~[dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.toInvokers(ServiceDiscoveryRegistryDirectory.java:352) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.refreshInvoker(ServiceDiscoveryRegistryDirectory.java:254) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.refreshOverrideAndInvoker(ServiceDiscoveryRegistryDirectory.java:182) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.notify(ServiceDiscoveryRegistryDirectory.java:176) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.addListenerAndNotify(ServiceInstancesChangedListener.java:237) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.subscribeURLs(ServiceDiscoveryRegistry.java:326) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry$DefaultMappingListener.onEvent(ServiceDiscoveryRegistry.java:386) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.metadata.store.nacos.NacosMetadataReport$MappingDataListener.lambda$process$0(NacosMetadataReport.java:514) [dubbo-3.1.7.jar:3.1.7]
at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_331]
at org.apache.dubbo.metadata.store.nacos.NacosMetadataReport$MappingDataListener.process(NacosMetadataReport.java:514) [dubbo-3.1.7.jar:3.1.7]
at org.apache.dubbo.metadata.store.nacos.NacosMetadataReport$NacosConfigListener.lambda$innerReceive$0(NacosMetadataReport.java:445) ~[dubbo-3.1.7.jar:3.1.7]
at java.util.concurrent.CopyOnWriteArrayList.forEach(CopyOnWriteArrayList.java:895) ~[na:1.8.0_331]
at java.util.concurrent.CopyOnWriteArraySet.forEach(CopyOnWriteArraySet.java:404) ~[na:1.8.0_331]
at org.apache.dubbo.metadata.store.nacos.NacosMetadataReport$NacosConfigListener.innerReceive(NacosMetadataReport.java:445) ~[dubbo-3.1.7.jar:3.1.7]
at com.alibaba.nacos.api.config.listener.AbstractSharedListener.receiveConfigInfo(AbstractSharedListener.java:40) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.client.config.impl.CacheData.lambda$safeNotifyListener$1(CacheData.java:334) ~[nacos-client-2.2.0.jar:na]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_331]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_331]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_331]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_331]
at java.lang.Thread.run(Thread.java:750) ~[na:1.8.0_331]
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