DB ) db 동기화 오류

박우영·2023년 4월 20일
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트러블 슈팅

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4/19

Study - StudyRule - Rule
StudyRule 기준으로
ManyToOne. ManyToOne
이렇게 설정 되어있다 즉 studyRule 엔티티 기준으로
1:m m: 1 이라는 것이다

intellij 를 재실행 하는데도 studyRule 이 초기화가 안됐고

오류를 모르고 단순히 왜 create 로 되어있는데 db 초기화가 안되는거지?
라고만 생각했었다 아래는 그 사진이다

위 사진은 studyRule select 문을 날렸을때 이다

위 사진은 rule select 문을 날렸을때 이다


위 사진은 studyRule 에서의 desc 이다.

그러다 실행할때 오류로그를 확인해보자 했더니 stuyRule 뿐만 아니라
mystudy에서도 오류로그 발견

오류 로그

org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "
    alter table my_study 
       add constraint FKdfocui7jkkvoc86dt530qucij 
       foreign key (member_id) 
       references member (id)" via JDBC Statement
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:502) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:486) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:433) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:176) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:144) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:128) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:254) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.lambda$process$5(SchemaManagementToolCoordinator.java:143) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at java.base/java.util.HashMap.forEach(HashMap.java:1421) ~[na:na]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:140) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:336) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:415) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1423) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:66) ~[spring-orm-6.0.7.jar:6.0.7]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376) ~[spring-orm-6.0.7.jar:6.0.7]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.0.7.jar:6.0.7]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.0.7.jar:6.0.7]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352) ~[spring-orm-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1816) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1766) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:598) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.7.jar:6.0.7]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1132) ~[spring-context-6.0.7.jar:6.0.7]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:907) ~[spring-context-6.0.7.jar:6.0.7]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[spring-context-6.0.7.jar:6.0.7]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.5.jar:3.0.5]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732) ~[spring-boot-3.0.5.jar:3.0.5]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) ~[spring-boot-3.0.5.jar:3.0.5]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:310) ~[spring-boot-3.0.5.jar:3.0.5]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1304) ~[spring-boot-3.0.5.jar:3.0.5]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1293) ~[spring-boot-3.0.5.jar:3.0.5]
	at com.baeker.baeker.BaekerApplication.main(BaekerApplication.java:15) ~[classes/:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-3.0.5.jar:3.0.5]
Caused by: java.sql.SQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`baeker`.`#sql-1e34_2805`, CONSTRAINT `FKdfocui7jkkvoc86dt530qucij` FOREIGN KEY (`member_id`) REFERENCES `member` (`id`))
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:117) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.StatementImpl.executeInternal(StatementImpl.java:763) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.StatementImpl.execute(StatementImpl.java:648) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:94) ~[HikariCP-5.0.1.jar:na]
	at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-5.0.1.jar:na]
	at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-6.1.7.Final.jar:6.1.7.Final]
	... 41 common frames omitted

오류로그가 더 많이 있지만 대략 내용은
1. 이미 테이블이 있어서 create 할 수 없다.
2. 무결성 제약조건 위배 되었다

와 같은 내용들 이었고

조치사항

  1. 맵핑 다시해주기 기존에 id컬럼명을 설정 해주지 않았는데 이것때문에 생긴 오류인가 싶어서 설정 해봤다.
    -> 오류
  2. db를 변경 baeker2 라는 새로운 db 를 만들어서 연결
    -> 오류 X
  3. 기존 db의 문제라고 생각하고 전에 작업했던 goal 이라는 테이블이 있는데 (지금은 코드상에서 삭제해서 없음) goal 이 남아있던 것. drop table goal 로 삭제
    -> 데이터 초기화는 됐지만 오류로그는 계속 나옴
  4. 관련 없는 db상의 table 전부 삭제 결국 db를 초기화 했다
    -> 문제 자체는 해결됐지만 배포 db라면 db를 삭제할 수도없는 문제

db 백업과 db를 관리하고 jpa와 db가 어떻게 동작되는지 좀더 이해가 필요할 것같다.

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