linux 配置nacos遇见的问题及解决办法
本次的集群是启动一个服务的三个不同端口，配置如下：
一.application.properties
加上下列配置，目的是使用自己的mysql数据库：
spring.datasource.platform=mysql
db.num=1
db.url.0=jdbc:mysql://127.0.0.1:3306/nacos_config?serverTimezone=Asia/Shanghai&characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true
db.user=root
db.password=root
注意：属性serverTimezone=Asia/Shanghai必须加上,否则报错。
二 .配置不同的端口号：
修改bin目录下startup.sh文件，需要修改两个地方：
- 新增参数o,表示端口号
2.启动时加上端口号
保存，退出。
三、修改cluster.conf
注意：①这里的ip不能写成127.0.0.1，否则识别不了。②这里的ip是虚拟机固定的ip，即使服务重启也不变（需要配置）
遇见的问题：
nacos版本2.2.1，启动一个服务的三个不同端口，结果发现第一个启动正常，启动第二个报错如下：
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:124)
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86)
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:416)
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:180)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:180)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:153)
... 16 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'distroFilterRegistration' defined in class path resource [com/alibaba/nacos/naming/web/NamingConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.FilterRegistrationBean]: Factory method 'distroFilterRegistration' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroFilter': Unsatisfied dependency expressed through field 'distroTagGenerator'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroTagGeneratorImpl' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/web/DistroTagGeneratorImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'upgradeJudgement' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/core/v2/upgrade/UpgradeJudgement.class]: Unsatisfied dependency expressed through constructor parameter 4; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceManager': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'consistencyDelegate' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/consistency/DelegateConsistencyServiceImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'persistentConsistencyServiceDelegate' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/consistency/persistent/PersistentConsistencyServiceDelegateImpl.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.naming.consistency.persistent.PersistentConsistencyServiceDelegateImpl]: Constructor threw exception; nested exception is java.lang.IllegalStateException: Fail to init node, please see the logs to find the reason.
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:627)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:456)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1158)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:554)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:514)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:319)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204)
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:211)
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:202)
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:96)
at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:85)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:253)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:227)
at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:53)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5128)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486)
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:105)
... 21 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.FilterRegistrationBean]: Factory method 'distroFilterRegistration' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroFilter': Unsatisfied dependency expressed through field 'distroTagGenerator'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroTagGeneratorImpl' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/web/DistroTagGeneratorImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'upgradeJudgement' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/core/v2/upgrade/UpgradeJudgement.class]: Unsatisfied dependency expressed through constructor parameter 4; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceManager': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'consistencyDelegate' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/consistency/DelegateConsistencyServiceImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'persistentConsistencyServiceDelegate' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/consistency/persistent/PersistentConsistencyServiceDelegateImpl.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.naming.consistency.persistent.PersistentConsistencyServiceDelegateImpl]: Constructor threw exception; nested exception is java.lang.IllegalStateException: Fail to init node, please see the logs to find the reason.
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:622)
... 61 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroFilter': Unsatisfied dependency expressed through field 'distroTagGenerator'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroTagGeneratorImpl' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/web/DistroTagGeneratorImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'upgradeJudgement' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/core/v2/upgrade/UpgradeJudgement.class]: Unsatisfied dependency expressed through constructor parameter 4; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serviceManager': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'consistencyDelegate' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/consistency/DelegateConsistencyServiceImpl.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'persistentConsistencyServiceDelegate' defined in URL [jar:file:/usr/local/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.0.3.jar!/com/alibaba/nacos/naming/consistency/persistent/PersistentConsistencyServiceDelegateImpl.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.naming.consistency.persistent.PersistentConsistencyServiceDelegateImpl]: Constructor threw exception; nested exception is java.lang.IllegalStateException: Fail to init node, please see the logs to find the reason.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:598)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:376)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1402)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:591)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:514)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:319)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.resolveBeanReference(ConfigurationClassEnhancer.java:394)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:366)
at com.alibaba.nacos.naming.web.NamingConfig$$EnhancerBySpringCGLIB$$8d2db8c.distroFilter(<generated>)
at com.alibaba.nacos.naming.web.NamingConfig.distroFilterRegistration(NamingConfig.java:42)
at com.alibaba.nacos.naming.web.NamingConfig$$EnhancerBySpringCGLIB$$8d2db8c.CGLIB$distroFilterRegistration$5(<generated>)
at com.alibaba.nacos.naming.web.NamingConfig$$EnhancerBySpringCGLIB$$8d2db8c$$FastClassBySpringCGLIB$$47f890a7.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363)
at com.alibaba.nacos.naming.web.NamingConfig$$EnhancerBySpringCGLIB$$8d2db8c.distroFilterRegistration(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
... 62 common frames omitted
网上查了，让建三个不同的文件夹：
建了之后，三个端口都能启动，但是执行：ps -ef|grep nacos | grep -v grep |wc -l 的值为1，就是虽然不报错，但是其实只有最新的那个端口启动成功。无奈之下，将版本换成1.4.2，也将nacos放在三个不同的文件夹下，分别启动，又报如下错误：
报错内容显示内存不足，查看startup.sh,配置如下：
默认启动2g的内存空间，修改下内存分配：
重启。执行ps -ef|grep nacos | grep -v grep |wc -l 值为3，成功！！！