dubbo启动时报错dubbo.cache is not exclusive
issue from: https://github.com/apache/dubbo/issues/9891
一、问题背景
项目版本
spring boot 2.6.6
nacos 2.0.4
dubbo 3.0.7
问题描述
provider启动正常
consumer启动时报如下错误：
2022-04-03 16:27:28.360 INFO 33240 --- [ main] o.a.d.c.cache.FileCacheStoreFactory : [DUBBO] Failed to create file store cache. Local file cache will be disabled. Cache file name: C:\Users\liguo\.dubbo\.metadata.nacos127.0.0.1%003a8848.dubbo.cache, dubbo version: 3.0.7, current host: 192.168.137.1 org.apache.dubbo.common.cache.FileCacheStoreFactory$PathNotExclusiveException: C:\Users\liguo\.dubbo\.metadata.nacos127.0.0.1%003a8848.dubbo.cache is not exclusive. at org.apache.dubbo.common.cache.FileCacheStoreFactory.tryFileLock(FileCacheStoreFactory.java:149) [dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.common.cache.FileCacheStoreFactory.getFile(FileCacheStoreFactory.java:115) [dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.common.cache.FileCacheStoreFactory.lambda$getInstance$0(FileCacheStoreFactory.java:82) [dubbo-3.0.7.jar:3.0.7] at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_311] at org.apache.dubbo.common.cache.FileCacheStoreFactory.getInstance(FileCacheStoreFactory.java:82) [dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.metadata.AbstractCacheManager.init(AbstractCacheManager.java:47) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.metadata.store.MetaCacheManager.<init>(MetaCacheManager.java:59) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.AbstractServiceDiscovery.<init>(AbstractServiceDiscovery.java:85) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.AbstractServiceDiscovery.<init>(AbstractServiceDiscovery.java:66) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.nacos.NacosServiceDiscovery.<init>(NacosServiceDiscovery.java:59) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.nacos.NacosServiceDiscoveryFactory.createDiscovery(NacosServiceDiscoveryFactory.java:27) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.AbstractServiceDiscoveryFactory.lambda$getServiceDiscovery$0(AbstractServiceDiscoveryFactory.java:53) ~[dubbo-3.0.7.jar:3.0.7] at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_311] at org.apache.dubbo.registry.client.AbstractServiceDiscoveryFactory.getServiceDiscovery(AbstractServiceDiscoveryFactory.java:53) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.getServiceDiscovery(ServiceDiscoveryRegistry.java:122) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.createServiceDiscovery(ServiceDiscoveryRegistry.java:109) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.ServiceDiscoveryRegistry.<init>(ServiceDiscoveryRegistry.java:86) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.ServiceDiscoveryRegistryFactory.createRegistry(ServiceDiscoveryRegistryFactory.java:35) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.support.AbstractRegistryFactory.getRegistry(AbstractRegistryFactory.java:89) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.RegistryFactoryWrapper.getRegistry(RegistryFactoryWrapper.java:33) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.RegistryFactory$Adaptive.getRegistry(RegistryFactory$Adaptive.java) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.integration.RegistryProtocol.getRegistry(RegistryProtocol.java:393) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.integration.InterfaceCompatibleRegistryProtocol.getServiceDiscoveryInvoker(InterfaceCompatibleRegistryProtocol.java:63) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.migration.MigrationInvoker.refreshServiceDiscoveryInvoker(MigrationInvoker.java:428) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.migration.MigrationInvoker.migrateToApplicationFirstInvoker(MigrationInvoker.java:244) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.migration.MigrationRuleHandler.refreshInvoker(MigrationRuleHandler.java:73) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.migration.MigrationRuleHandler.doMigrate(MigrationRuleHandler.java:57) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.client.migration.MigrationRuleListener.onRefer(MigrationRuleListener.java:243) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.integration.RegistryProtocol.interceptInvoker(RegistryProtocol.java:535) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.integration.RegistryProtocol.doRefer(RegistryProtocol.java:505) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.registry.integration.RegistryProtocol.refer(RegistryProtocol.java:487) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.qos.protocol.QosProtocolWrapper.refer(QosProtocolWrapper.java:83) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:74) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:71) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper.refer(ProtocolSerializationWrapper.java:52) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.ReferenceConfig.createInvokerForRemote(ReferenceConfig.java:494) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:397) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:285) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:219) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.utils.SimpleReferenceCache.get(SimpleReferenceCache.java:110) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.deploy.DefaultModuleDeployer.lambda$referServices$6(DefaultModuleDeployer.java:387) ~[dubbo-3.0.7.jar:3.0.7] at java.util.concurrent.ConcurrentHashMap$ValuesView.forEach(ConcurrentHashMap.java:4707) ~[na:1.8.0_311] at org.apache.dubbo.config.deploy.DefaultModuleDeployer.referServices(DefaultModuleDeployer.java:367) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.deploy.DefaultModuleDeployer.start(DefaultModuleDeployer.java:154) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onContextRefreshedEvent(DubboDeployApplicationListener.java:111) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:100) ~[dubbo-3.0.7.jar:3.0.7] at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:45) ~[dubbo-3.0.7.jar:3.0.7] at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.18.jar:5.3.18] at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.18.jar:5.3.18] at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.18.jar:5.3.18] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.18.jar:5.3.18] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.18.jar:5.3.18] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:938) ~[spring-context-5.3.18.jar:5.3.18] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.18.jar:5.3.18] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.6.jar:2.6.6] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) ~[spring-boot-2.6.6.jar:2.6.6] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) ~[spring-boot-2.6.6.jar:2.6.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-2.6.6.jar:2.6.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) ~[spring-boot-2.6.6.jar:2.6.6] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.6.jar:2.6.6] at org.liguo.dubbo.consumer.ConsumerApplication.main(ConsumerApplication.java:13) ~[classes/:na]
但是dubbo 3.0.5 没有这样的问题！
二、问题解析
dubbo的默认缓存文件是在{user.home}/.dubbo/目录下，默认会跟进提供者和消费者生成一些文件，源码：
三、问题解决
方式一：修改user.home
System.setProperty("user.home", "myhome")
方式二：修改dubbo.meta.cache.filePath和dubbo.mapping.cache.filePath
1 System.setProperty("dubbo.meta.cache.filePath", "myHome"); 2 System.setProperty("dubbo.mapping.cache.filePath", "myHome");
