shelltea opened a new issue, #10656: URL: https://github.com/apache/dubbo/issues/10656
<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy --> - [x] 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: 3.1.0 * Java version: 1.8 ### Steps to reproduce this issue 1. 在官方示例上稍微修改了一些进行测试，https://dubbo.apache.org/zh/overview/tasks/mesh/proxyless/ 2. Consumer调用Provider接口时报错： ``` java.lang.NullPointerException: null at org.apache.dubbo.registry.xds.XdsServiceDiscovery.getInstances(XdsServiceDiscovery.java:72) at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.subscribeURLs(ServiceDiscoveryRegistry.java:314) at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.doSubscribe(ServiceDiscoveryRegistry.java:216) at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.subscribe(ServiceDiscoveryRegistry.java:184) at org.apache.dubbo.registry.ListenerRegistryWrapper.subscribe(ListenerRegistryWrapper.java:111) at org.apache.dubbo.registry.integration.DynamicDirectory.subscribe(DynamicDirectory.java:180) at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.subscribe(ServiceDiscoveryRegistryDirectory.java:124) at org.apache.dubbo.registry.integration.RegistryProtocol.doCreateInvoker(RegistryProtocol.java:571) at org.apache.dubbo.registry.integration.InterfaceCompatibleRegistryProtocol.getServiceDiscoveryInvoker(InterfaceCompatibleRegistryProtocol.java:65) at org.apache.dubbo.registry.client.migration.MigrationInvoker.refreshServiceDiscoveryInvoker(MigrationInvoker.java:436) at org.apache.dubbo.registry.client.migration.MigrationInvoker.migrateToApplicationFirstInvoker(MigrationInvoker.java:244) at org.apache.dubbo.registry.client.migration.MigrationRuleHandler.refreshInvoker(MigrationRuleHandler.java:73) at org.apache.dubbo.registry.client.migration.MigrationRuleHandler.doMigrate(MigrationRuleHandler.java:57) at org.apache.dubbo.registry.client.migration.MigrationRuleListener.onRefer(MigrationRuleListener.java:243) at org.apache.dubbo.registry.integration.RegistryProtocol.interceptInvoker(RegistryProtocol.java:536) at org.apache.dubbo.registry.integration.RegistryProtocol.doRefer(RegistryProtocol.java:506) at org.apache.dubbo.registry.integration.RegistryProtocol.refer(RegistryProtocol.java:488) at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:74) at org.apache.dubbo.qos.protocol.QosProtocolWrapper.refer(QosProtocolWrapper.java:80) at org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:71) at org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper.refer(ProtocolSerializationWrapper.java:52) at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java) at org.apache.dubbo.config.ReferenceConfig.createInvokerForRemote(ReferenceConfig.java:600) at org.apache.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:441) at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:295) at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:227) at org.apache.dubbo.config.utils.SimpleReferenceCache.destroyReference(SimpleReferenceCache.java:262) at org.apache.dubbo.config.utils.SimpleReferenceCache.destroy(SimpleReferenceCache.java:215) at org.apache.dubbo.config.utils.SimpleReferenceCache.destroy(SimpleReferenceCache.java:239) at org.apache.dubbo.config.deploy.DefaultModuleDeployer.lambda$referServices$6(DefaultModuleDeployer.java:388) at java.util.concurrent.ConcurrentHashMap$ValuesView.forEach(ConcurrentHashMap.java:4707) at org.apache.dubbo.config.deploy.DefaultModuleDeployer.referServices(DefaultModuleDeployer.java:363) at org.apache.dubbo.config.deploy.DefaultModuleDeployer.start(DefaultModuleDeployer.java:154) at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onContextRefreshedEvent(DubboDeployApplicationListener.java:111) at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:100) at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:45) 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 org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:898) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:554) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:755) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:402) at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1247) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1236) ``` Consumer端和Provider端配置相同，如下： ``` dubbo.consumer.check = false dubbo.registry.address = xds://istiod.istio-system.svc:15012 dubbo.application.qosEnable = true dubbo.application.qosAcceptForeignIp = true dubbo.protocols.triple.name = tri dubbo.protocols.triple.port = 20881 dubbo.application.metadata-service-port = 20885 ``` -- This is an automated message from the Apache Git Service. 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