[Spring Boot] JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

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관리 메뉴

코린이의 기록

[Spring Boot] JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 본문

Framework/Spring

[Spring Boot] JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

코린이예요 2020. 8. 14. 20:47

boot Run Error log

전체 로그는 더보기 클릭

### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

### The error may exist in class path resource [sql/map/master/common-mapper.xml]

### The error may involve common.selectAllProperties

### The error occurred while executing a query

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

2020-08-14 00:18:34 INFO org.apache.catalina.core.StandardService:180 - Stopping service [Tomcat]

2020-08-14 00:18:34 INFO org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener:142 -

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.

2020-08-14 00:18:34 ERROR org.springframework.boot.SpringApplication:837 - Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'emailService': Unsatisfied dependency expressed through field 'emailSender'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'getJavaMailSender' defined in class path resource [com/otoride/biz/config/Beans.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.mail.javamail.JavaMailSender]: Factory method 'getJavaMailSender' threw exception; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

### The error may exist in class path resource [sql/map/master/common-mapper.xml]

### The error may involve common.selectAllProperties

### The error occurred while executing a query

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584)

at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:370)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1336)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759)

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:548)

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754)

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386)

at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242)

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230)

at com.otoride.api.config.OtorideApiApplication.main(OtorideApiApplication.java:49)

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.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'getJavaMailSender' defined in class path resource [com/otoride/biz/config/Beans.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.mail.javamail.JavaMailSender]: Factory method 'getJavaMailSender' threw exception; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

### The error may exist in class path resource [sql/map/master/common-mapper.xml]

### The error may involve common.selectAllProperties

### The error occurred while executing a query

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:591)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1246)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)

at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062)

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:581)

... 24 common frames omitted

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.mail.javamail.JavaMailSender]: Factory method 'getJavaMailSender' threw exception; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

### The error may exist in class path resource [sql/map/master/common-mapper.xml]

### The error may involve common.selectAllProperties

### The error occurred while executing a query

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)

at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:583)

... 36 common frames omitted

Caused by: org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

### The error may exist in class path resource [sql/map/master/common-mapper.xml]

### The error may involve common.selectAllProperties

### The error occurred while executing a query

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:77)

at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)

at com.sun.proxy.$Proxy109.selectList(Unknown Source)

at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:222)

at com.otoride.biz.common.DbProp.checkDbPropertyUpdate(DbProp.java:272)

at com.otoride.biz.common.DbProp.getCorpS(DbProp.java:224)

at com.otoride.biz.common.DbProp.getCorpS(DbProp.java:211)

at com.otoride.biz.config.Beans.getJavaMailSender(Beans.java:28)

at com.otoride.biz.config.Beans$$EnhancerBySpringCGLIB$$db6c97ad.CGLIB$getJavaMailSender$0(<generated>)

at com.otoride.biz.config.Beans$$EnhancerBySpringCGLIB$$db6c97ad$$FastClassBySpringCGLIB$$b082c0ba.invoke(<generated>)

at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)

at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:365)

at com.otoride.biz.config.Beans$$EnhancerBySpringCGLIB$$db6c97ad.getJavaMailSender(<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)

... 37 common frames omitted

Caused by: org.apache.ibatis.exceptions.PersistenceException:

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

### The error may exist in class path resource [sql/map/master/common-mapper.xml]

### The error may involve common.selectAllProperties

### The error occurred while executing a query

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:136)

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.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)

... 53 common frames omitted

Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81)

at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82)

at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68)

at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336)

at org.apache.ibatis.executor.ReuseExecutor.prepareStatement(ReuseExecutor.java:88)

at org.apache.ibatis.executor.ReuseExecutor.doQuery(ReuseExecutor.java:59)

at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)

at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)

at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:136)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)

... 60 common frames omitted

Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

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 com.mysql.jdbc.Util.handleNewInstance(Util.java:425)

at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)

at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:342)

at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2197)

at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2230)

at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2025)

at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:778)

at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)

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 com.mysql.jdbc.Util.handleNewInstance(Util.java:425)

at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)

at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)

at net.sf.log4jdbc.DriverSpy.connect(DriverSpy.java:719)

at java.sql.DriverManager.getConnection(DriverManager.java:664)

at java.sql.DriverManager.getConnection(DriverManager.java:208)

at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:154)

at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:145)

at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:205)

at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:169)

at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151)

at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115)

at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78)

... 69 common frames omitted

Caused by: java.net.SocketException: Network is unreachable (connect failed)

at java.net.PlainSocketImpl.socketConnect(Native Method)

at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)

at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)

at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

at java.net.Socket.connect(Socket.java:607)

at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211)

at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:301)

... 91 common frames omitted

JDBC Connection error 부분

### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
### The error may exist in class path resource [sql/map/master/common-mapper.xml]
### The error may involve common.selectAllProperties
### The error occurred while executing a query
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 
2020-08-14 20:40:18 INFO  org.apache.catalina.core.StandardService:180 - Stopping service [Tomcat] 
2020-08-14 20:40:18 INFO  org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener:142 - 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 
2020-08-14 20:40:18 ERROR org.springframework.boot.SpringApplication:837 - Application run failed 
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'emailService': Unsatisfied dependency expressed through field 'emailSender'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'getJavaMailSender' defined in class path resource [com/otoride/biz/config/Beans.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.mail.javamail.JavaMailSender]: Factory method 'getJavaMailSender' threw exception; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

소스를 역 추적해보자

1. common-mapper.xml에 정의된 select query문 (selectAllProperties)에서 에러

2. DpProp.java에서 checkDbPropertyUpdate()에서

List<PropertiesVo> list = SpringContextBridge.services().getSql().selectList("common.selectAllProperties"); 해오는 부분이 있음

3. checkDbPropertyUpdate를 호출하는 곳은 getCorpS(), getS() 두곳임, 에러 로그를 보니 getCoprs()에서 호출된것이었음

4. getCopS()는 Beans에서 getJavaMailSender()에서 호출됨.

Beans

/**
 * 메일 발송
 */
@Configuration
public class Beans {

	@Bean
	public JavaMailSender getJavaMailgetJavaMailSenderSender() {
		JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
		mailSender.setHost("smtp.gmail.com");
		mailSender.setPort(587);

		String senderId = DbProp.getCorpS("", "MAIL.SENDER.ID", true);
		String senderPw = DbProp.getCorpS("", "MAIL.SENDER.PW", true);

		mailSender.setUsername(senderId);
		mailSender.setPassword(senderPw);

		Properties props = mailSender.getJavaMailProperties();
		props.put("mail.transport.protocol", "smtp");
		props.put("mail.smtp.auth", true);
		props.put("mail.smtp.starttls.enable", true);
		props.put("mail.debug", true);

		return mailSender;
	}

	@Bean
	public ErrorCodeManager errorCodeManager() {
			// 생략
	}
}

결론은

Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

jdbc 관련 에러를 해결해야 할듯

해결 ...

원인 : mysql 접속 정보가 잘못되있었다.. 즉 접속이 안돼는 connection이었던것..

깨달은 교훈.. 에러 로그를 잘보다

참고로 SMTP Socket Connect error 에 대한 해결방안

첫번째 시도

intellij > help > Edit Custom VM Options에

-Djava.net.preferIPv4Stack=true

를 추가

reference : https://confluence.atlassian.com/jirakb/error-socketexception-network-is-unreachable-connect-when-setting-outgoing-smtp-mail-server-in-jira-780865909.html

참고

port를 587로 바꾸라고 하는사람도 있는데 원래 587로 설정함 ㅜㅜ

터미널에서 telnet smtp.gmail.com 587이 정상적으로 연결되는지 확인

reference : https://stackoverflow.com/questions/56237199/mutt-could-not-connect-to-smtp-gmail-com-network-is-unreachable

Reference

https://confluence.atlassian.com/jirakb/error-socketexception-network-is-unreachable-connect-when-setting-outgoing-smtp-mail-server-in-jira-780865909.html

https://github.com/thingsboard/thingsboard/issues/524

https://github.com/PHPMailer/PHPMailer/issues/149

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