ERROR 5068 Exception during pool initialization – SQLSyntaxErrorException: Access denied for user ‘root’@’localhost’ to database

The exception “java.sql.SQLSyntaxErrorException: Access denied for user ‘root’@’localhost’ to database ‘testdb’” is thrown if you are using mysql database first time or newly installed.

If you start the spring boot application, the jpa will try to create a database conection pool. If any error is thrown from the database, this error message will be shown on startup.



Exception

2019-10-07 13:46:46.148 ERROR 5068 --- [  restartedMain] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.
 java.sql.SQLSyntaxErrorException: Access denied for user 'root'@'localhost' to database 'testdb'
     at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.17.jar:8.0.17]
     at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.17.jar:8.0.17]
     at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.17.jar:8.0.17]
     at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:827) ~[mysql-connector-java-8.0.17.jar:8.0.17]
     at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:447) ~[mysql-connector-java-8.0.17.jar:8.0.17]
     at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:237) ~[mysql-connector-java-8.0.17.jar:8.0.17]
     at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) ~[mysql-connector-java-8.0.17.jar:8.0.17]
     at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:na]
     at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:na]
     at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:na]
     at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) [HikariCP-3.2.0.jar:na]
     at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) [HikariCP-3.2.0.jar:na]
     at com.zaxxer.hikari.pool.HikariPool.(HikariPool.java:115) [HikariCP-3.2.0.jar:na]
     at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.2.0.jar:na]
     at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) [spring-jdbc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) [spring-jdbc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) [spring-jdbc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:320) [spring-jdbc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:357) [spring-jdbc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.boot.autoconfigure.orm.jpa.DatabaseLookup.getDatabase(DatabaseLookup.java:73) [spring-boot-autoconfigure-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.autoconfigure.orm.jpa.JpaProperties.determineDatabase(JpaProperties.java:142) [spring-boot-autoconfigure-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.jpaVendorAdapter(JpaBaseConfiguration.java:113) [spring-boot-autoconfigure-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$904ecc97.CGLIB$jpaVendorAdapter$6() [spring-boot-autoconfigure-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$904ecc97$$FastClassBySpringCGLIB$$e926f135.invoke() [spring-boot-autoconfigure-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) [spring-core-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) [spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$904ecc97.jpaVendorAdapter() [spring-boot-autoconfigure-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
     at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]
     at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:622) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:456) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1255) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1175) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:857) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:760) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:509) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1255) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1175) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:857) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:760) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:509) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1105) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
     at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
     at com.yawintutor.SpringBootMySqLApplication.main(SpringBootMySqLApplication.java:11) ~[classes/:na]
     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
     at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]
     at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.1.9.RELEASE.jar:2.1.9.RELEASE]


Root Cause

The spring boot application will create a database connection pool, if it is configured with spring data JPA. If any error occurred in database or database connection, the database pool can not be initialization with database connection. Spring boot fails on initializing the database pool.

There is nothing to do with spring boot. It could be a issue with database, database connection or database access permission.



Solution

As this exception is thrown from database, the issue is fixed in database level. Contact your database administrator if you don’t have permission to access the database.

Check the database exception thrown in the spring boot log, and fix the issue.

Example explanation

Mysql root user does not have enough permission to run database operations, such as creating, updating, deleting, selecting statements from your laptop or computer via ip or “localhost.” Root authorisation should be given in the ip. Permission can be given for a particular operation of the database. If you are new to mysql database and have created a test database, provide the root user with the full ip grant.

In the above example log shows issue with mysql database permission. Execute the below query in database to resolve this issue

CREATE USER 'root'@'localhost' IDENTIFIED BY 'root';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION;
FLUSH PRIVILEGES;

If your database is in your remote server, then run the below code to get the permission. If your computer/laptop ip address is 192.168.1.3, then run the below code in database.

CREATE USER 'root'@'192.168.1.3' IDENTIFIED BY 'root';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.3' WITH GRANT OPTION;
FLUSH PRIVILEGES;

Rollback

If you want to revoke the permission, then run the below code

revoke ALL PRIVILEGES ON *.* from 'root'@'192.168.1.3';
FLUSH PRIVILEGES;



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