错误：致命：角色“登录”不存在

时间：2018-06-22 15:55:32

标签： postgresql grails amazon-rds

某些情况：我是一名新手工程师，正在开发需要数据库连接的Grails 3.3.3应用程序。当前，有一个为此目的创建和配置的Amazon RDS实例。从应用程序到数据库的正确连接尚未建立。

由于我能够使用标准的psql命令从外壳进行连接，因此我已经确认我的安全配置以及凭据是正确的。

除非我错过了一些事情，RDS troubleshooting guide提供了见识，但几乎没有帮助。

我也看到过this很有帮助，但是（似乎）我没有操作系统特权，因为AWS限制了这种类型的访问。

我的问题似乎来自于postgresql或RDS，而不是grails项目中的application.yml配置。此外，我已经为连接安装了必要的依赖项。以下包括application.yml：

dataSource:
  pooled: true
  jmxExport: true
  logSql: true
  formatSql: true
  driverClassName: org.postgresql.Driver
  dialect: org.hibernate.dialect.PostgreSQLDialect
  dbCreate: "update"
  url: jdbc:postgresql:endpoint.rds.amazonaws.com:port/database
  username: "login"
  password: "password"

我检查了postgres角色和数据库。此外，我已经创建和删除角色，以及添加和撤消了对这些角色的各种高级权限。我无法使用角色表中的任何角色登录；错误org.postgresql.util.PSQLException: FATAL: role "login" does not exist表示该错误不存在，但是，我有相反的证据。

postgres=> \du
 login        | Create role, Create DB      +| {rds_superuser}
                 | Password valid until infinity|
 rds_replication | Cannot login                 | {}
 rds_superuser   | Cannot login                 | {rds_replication,pg_signal_backend}
 rdsadmin        | Superuser, Create role, Create DB, Replication, Bypass RLS+| {}
                 | Password valid until infinity                              |
 rdsrepladmin    | No inheritance, Cannot login, Replication              | {}

提供的具有相关第一个错误的堆栈跟踪：


| Running application...
2018-06-22 12:12:20.343 ERROR --- [           main] org.postgresql.Driver                    : Connection error:

org.postgresql.util.PSQLException: FATAL: role "login" does not exist
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2433)
        at org.postgresql.core.v3.QueryExecutorImpl.readStartupMessages(QueryExecutorImpl.java:2566)
        at org.postgresql.core.v3.QueryExecutorImpl.(QueryExecutorImpl.java:131)
        at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:210)
        at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
        at org.postgresql.jdbc.PgConnection.(PgConnection.java:195)
        at org.postgresql.Driver.makeConnection(Driver.java:452)
        at org.postgresql.Driver.connect(Driver.java:254)
        at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:310)
        at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:735)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:667)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:482)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.(ConnectionPool.java:154)
        at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
        at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
        at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:131)
        at org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy.afterPropertiesSet(LazyConnectionDataSourceProxy.java:162)
        at org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy.(LazyConnectionDataSourceProxy.java:106)
        at org.grails.datastore.gorm.jdbc.connections.DataSourceConnectionSourceFactory.proxy(DataSourceConnectionSourceFactory.java:95)
        at org.grails.datastore.gorm.jdbc.connections.DataSourceConnectionSourceFactory.create(DataSourceConnectionSourceFactory.java:88)
        at org.grails.datastore.gorm.jdbc.connections.CachedDataSourceConnectionSourceFactory.create(CachedDataSourceConnectionSourceFactory.java:37)
        at org.grails.orm.hibernate.connections.AbstractHibernateConnectionSourceFactory.create(AbstractHibernateConnectionSourceFactory.java:38)
        at org.grails.orm.hibernate.connections.AbstractHibernateConnectionSourceFactory.create(AbstractHibernateConnectionSourceFactory.java:23)
        at org.grails.datastore.mapping.core.connections.AbstractConnectionSourceFactory.create(AbstractConnectionSourceFactory.java:64)
        at org.grails.datastore.mapping.core.connections.AbstractConnectionSourceFactory.create(AbstractConnectionSourceFactory.java:52)
        at org.grails.datastore.mapping.core.connections.ConnectionSourcesInitializer.create(ConnectionSourcesInitializer.groovy:24)
        at org.grails.orm.hibernate.HibernateDatastore.(HibernateDatastore.java:204)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.springsource.loaded.ri.ReflectiveInterceptor.jlrConstructorNewInstance(ReflectiveInterceptor.java:1076)
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:122)
        at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:271)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
        at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:648)
        at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:145)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getSingletonFactoryBeanForTypeCheck(AbstractAutowireCapableBeanFactory.java:923)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryBean(AbstractAutowireCapableBeanFactory.java:804)
        at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:558)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:432)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:395)
        at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:220)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1267)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:225)
        at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:703)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:528)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
        at grails.boot.GrailsApp.run(GrailsApp.groovy:84)
        at grails.boot.GrailsApp.run(GrailsApp.groovy:393)
        at grails.boot.GrailsApp.run(GrailsApp.groovy:380)
        at grails.boot.GrailsApp$run.call(Unknown Source)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:136)
        at charity.navigator.Application.main(Application.groovy:8)

2 个答案:

答案 0 :(得分：1)

是固定的！我意识到dataSource.url连接字符串配置错误；它需要两个正斜杠。

jdbc:postgresql://endpoint.rds.amazonaws.com:port/database

当应用程序无法解释url字符串时，它默认为localhost数据源。当应用程序尝试本地连接到尚未启动的psql并导致错误时，就可以实现这一点：Unable to create initial connections of pool. org.postgresql.util.PSQLException: Connection to localhost:5432 refused.运行时，我的本地psql没有正确的角色，因此出现错误。

答案 1 :(得分：0)

您是否有机会使用“ postgres-extensions”插件？昨天，我遇到了同样的问题，发现将这个插件的版本回滚到4.6.1确实可以解决问题。由于某些原因，较新版本的插件无法与Grails 3配合使用。

要回滚，请更改 build.gradle 中将插件添加到的行：

compile 'org.grails.plugins:postgresql-extensions:4.6.1'

希望这会有所帮助！

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