학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요. 1. 강의 내용과 관련된 질문을 남겨주세요. 2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요. (자주 하는 질문 링크: https://bit.ly/3fX6ygx) 3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요. (질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG) 질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요. ========================================= [질문 템플릿] 1. 강의 내용과 관련된 질문인가요? (예/아니오) 2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) [질문 내용] 여기에 질문 내용을 남겨주세요. @Column에서 unique나 length제약조건을 거는것은 런타임에 영향을 주지 않는다 하시고 @Table에서 name을 사용해서 테이블 명을 바꾸는것은 런타임에 영향을 주신다고 하셧는데 둘의 차이를 이해하지 못하고 있습니다. @Table의 name을 변경하는것이 인서트 쿼리나 업데이트 쿼리에 영향을 준다고 하셧는데 이 말 자체를 이해하지 못하고 있는 것 같습니다..
학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요. 1. 강의 내용과 관련된 질문을 남겨주세요. 2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요. (자주 하는 질문 링크: https://bit.ly/3fX6ygx) 3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요. (질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG) 질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요. ========================================= [질문 템플릿] 1. 강의 내용과 관련된 질문인가요? (예/아니오) 2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예/아니오) [질문 내용] 윈도우 cmb창에서 명령 프롬프트에서 gradlew.bat 를 실행하려면 gradlew 하고 엔터를 치면 됩니다. --> 여기까지는 실행이 됬으나 gradlew build에서 BUILD FAILED 됩니다... 도저히 모르겠습니다.
안녕하세요 현재 파이썬을 공부중인 학생입니다. 이전까지는 태그의 값을 텍스트로 출력하고 있었는데 태그안에 속성값을 텍스트로 출력할일이 생겨서 여러 방면으로 검색 및 시도를 해보고 있는데 잘 안되네요 여기서 data-taitle="BLACK(99)" 의 BLACK(99) 를 텍스트로 출력하고 싶습니다. 어떻게 하면 될까요? #python
K8S나 Docker Swarm 없이 2대 이상의 Host PC에 Multi Cluster를 구성할 수 있을까요? 혹시 2대의 PC에 각각 Docker를 설치하고, 여기에 분산되서 올라간 Container들을 하나의 Network으로 묶는것이 가능한가 해서요. 방법이 있으면 알고 싶습니다
안녕하세요. 강의를 듣던 중 에러가 발생하여 질문드립니다. order service에 마리아디비 연동시 에러가 발생합니다. (pom.xml 파일에 마리아디비 의존성 추가 했습니다) order-service: application.yml server: port: 0 spring: application: name: order-service h2: console: enabled: true settings: web-allow-others: true path: /h2-console datasource: # driver-class-name: org.h2.Driver # url: jdbc:h2:mem:testdb # username: sa driver-class-name: org.mariadb.jdbc.Driver url: jdbc:mysql://localhost:3306/mydb username: root password: 0422 jpa: hibernate: ddl-auto: update show-sql: true generate-ddl: true eureka: instance: hostname: localhost instance-id: ${spring.application.name}:${spring.application.instance_id:${random.value}} # ???? ??? random?? ?? client: register-with-eureka: true # #eureka server? ???? ???? fetch-registry: true service-url: defaultZone: http://127.0.0.1:8761/eureka # ??? eureka ??? ?? logging: level: com.example.orderservice: DEBUG 에러 내용 "C:\Program Files\Java\jdk-11.0.12\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-Dmanagement.endpoints.jmx.exposure.include=*" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2022.3.2\lib\idea_rt.jar=53302:C:\Program Files\JetBrains\IntelliJ IDEA 2022.3.2\bin" -Dfile.encoding=UTF-8 -classpath 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0.41.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-web\5.3.3\spring-web-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-webmvc\5.3.3\spring-webmvc-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-expression\5.3.3\spring-expression-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\cloud\spring-cloud-starter-netflix-eureka-client\3.0.0\spring-cloud-starter-netflix-eureka-client-3.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\cloud\spring-cloud-starter\3.0.0\spring-cloud-starter-3.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\cloud\spring-cloud-context\3.0.0\spring-cloud-context-3.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\security\spring-security-crypto\5.4.2\spring-security-crypto-5.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\cloud\spring-cloud-commons\3.0.0\spring-cloud-commons-3.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\security\spring-security-rsa\1.0.9.RELEASE\spring-security-rsa-1.0.9.RELEASE.jar;C:\Users\JUNGMINJI\.m2\repository\org\bouncycastle\bcpkix-jdk15on\1.64\bcpkix-jdk15on-1.64.jar;C:\Users\JUNGMINJI\.m2\repository\org\bouncycastle\bcprov-jdk15on\1.64\bcprov-jdk15on-1.64.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\cloud\spring-cloud-netflix-eureka-client\3.0.0\spring-cloud-netflix-eureka-client-3.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\com\netflix\eureka\eureka-client\1.10.10\eureka-client-1.10.10.jar;C:\Users\JUNGMINJI\.m2\repository\com\netflix\netflix-commons\netflix-eventbus\0.3.0\netflix-eventbus-0.3.0.jar;C:\Users\JUNGMINJI\.m2\repository\com\netflix\netflix-commons\netflix-infix\0.3.0\netflix-infix-0.3.0.jar;C:\Users\JUNGMINJI\.m2\repository\commons-jxpath\commons-jxpath\1.3\commons-jxpath-1.3.jar;C:\Users\JUNGMINJI\.m2\repository\joda-time\joda-time\2.3\joda-time-2.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\antlr\antlr-runtime\3.4\antlr-runtime-3.4.jar;C:\Users\JUNGMINJI\.m2\repository\org\antlr\stringtemplate\3.2.1\stringtemplate-3.2.1.jar;C:\Users\JUNGMINJI\.m2\repository\com\google\code\gson\gson\2.8.6\gson-2.8.6.jar;C:\Users\JUNGMINJI\.m2\repository\org\apache\commons\commons-math\2.2\commons-math-2.2.jar;C:\Users\JUNGMINJI\.m2\repository\javax\ws\rs\jsr311-api\1.1.1\jsr311-api-1.1.1.jar;C:\Users\JUNGMINJI\.m2\repository\com\netflix\servo\servo-core\0.12.21\servo-core-0.12.21.jar;C:\Users\JUNGMINJI\.m2\repository\com\google\guava\guava\19.0\guava-19.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\apache\httpcomponents\httpclient\4.5.13\httpclient-4.5.13.jar;C:\Users\JUNGMINJI\.m2\repository\org\apache\httpcomponents\httpcore\4.4.14\httpcore-4.4.14.jar;C:\Users\JUNGMINJI\.m2\repository\commons-codec\commons-codec\1.15\commons-codec-1.15.jar;C:\Users\JUNGMINJI\.m2\repository\commons-configuration\commons-configuration\1.10\commons-configuration-1.10.jar;C:\Users\JUNGMINJI\.m2\repository\commons-lang\commons-lang\2.6\commons-lang-2.6.jar;C:\Users\JUNGMINJI\.m2\repository\com\google\inject\guice\4.1.0\guice-4.1.0.jar;C:\Users\JUNGMINJI\.m2\repository\javax\inject\javax.inject\1\javax.inject-1.jar;C:\Users\JUNGMINJI\.m2\repository\aopalliance\aopalliance\1.0\aopalliance-1.0.jar;C:\Users\JUNGMINJI\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.11.4\jackson-annotations-2.11.4.jar;C:\Users\JUNGMINJI\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.11.4\jackson-core-2.11.4.jar;C:\Users\JUNGMINJI\.m2\repository\org\codehaus\jettison\jettison\1.4.0\jettison-1.4.0.jar;C:\Users\JUNGMINJI\.m2\repository\com\netflix\eureka\eureka-core\1.10.10\eureka-core-1.10.10.jar;C:\Users\JUNGMINJI\.m2\repository\com\fasterxml\woodstox\woodstox-core\5.3.0\woodstox-core-5.3.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\codehaus\woodstox\stax2-api\4.2\stax2-api-4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\cloud\spring-cloud-starter-loadbalancer\3.0.0\spring-cloud-starter-loadbalancer-3.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\cloud\spring-cloud-loadbalancer\3.0.0\spring-cloud-loadbalancer-3.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\boot\spring-boot-starter-validation\2.4.2\spring-boot-starter-validation-2.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\hibernate\validator\hibernate-validator\6.1.7.Final\hibernate-validator-6.1.7.Final.jar;C:\Users\JUNGMINJI\.m2\repository\jakarta\validation\jakarta.validation-api\2.0.2\jakarta.validation-api-2.0.2.jar;C:\Users\JUNGMINJI\.m2\repository\io\projectreactor\reactor-core\3.4.2\reactor-core-3.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\reactivestreams\reactive-streams\1.0.3\reactive-streams-1.0.3.jar;C:\Users\JUNGMINJI\.m2\repository\io\projectreactor\addons\reactor-extra\3.4.2\reactor-extra-3.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\boot\spring-boot-starter-cache\2.4.2\spring-boot-starter-cache-2.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-context-support\5.3.3\spring-context-support-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\com\stoyanr\evictor\1.0.0\evictor-1.0.0.jar;C:\Users\JUNGMINJI\.m2\repository\com\thoughtworks\xstream\xstream\1.4.14\xstream-1.4.14.jar;C:\Users\JUNGMINJI\.m2\repository\xmlpull\xmlpull\1.1.3.1\xmlpull-1.1.3.1.jar;C:\Users\JUNGMINJI\.m2\repository\xpp3\xpp3_min\1.1.4c\xpp3_min-1.1.4c.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\boot\spring-boot-devtools\2.4.2\spring-boot-devtools-2.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\boot\spring-boot\2.4.2\spring-boot-2.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.4.2\spring-boot-autoconfigure-2.4.2.jar;C:\Users\JUNGMINJI\.m2\repository\com\h2database\h2\1.3.176\h2-1.3.176.jar;C:\Users\JUNGMINJI\.m2\repository\org\modelmapper\modelmapper\2.3.8\modelmapper-2.3.8.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\kafka\spring-kafka\2.6.5\spring-kafka-2.6.5.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-context\5.3.3\spring-context-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-messaging\5.3.3\spring-messaging-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-tx\5.3.3\spring-tx-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\retry\spring-retry\1.3.1\spring-retry-1.3.1.jar;C:\Users\JUNGMINJI\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\apache\kafka\kafka-clients\2.6.0\kafka-clients-2.6.0.jar;C:\Users\JUNGMINJI\.m2\repository\com\github\luben\zstd-jni\1.4.4-7\zstd-jni-1.4.4-7.jar;C:\Users\JUNGMINJI\.m2\repository\org\lz4\lz4-java\1.7.1\lz4-java-1.7.1.jar;C:\Users\JUNGMINJI\.m2\repository\org\xerial\snappy\snappy-java\1.1.7.3\snappy-java-1.1.7.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\projectlombok\lombok\1.18.16\lombok-1.18.16.jar;C:\Users\JUNGMINJI\.m2\repository\jakarta\xml\bind\jakarta.xml.bind-api\2.3.3\jakarta.xml.bind-api-2.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\jakarta\activation\jakarta.activation-api\1.2.2\jakarta.activation-api-1.2.2.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-core\5.3.3\spring-core-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\springframework\spring-jcl\5.3.3\spring-jcl-5.3.3.jar;C:\Users\JUNGMINJI\.m2\repository\org\mariadb\jdbc\mariadb-java-client\2.7.1\mariadb-java-client-2.7.1.jar com.example.orderservice.OrderServiceApplication . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.4.2) 2023-04-15 21:57:34.182 INFO 14488 --- [ restartedMain] c.e.o.OrderServiceApplication : Starting OrderServiceApplication using Java 11.0.12 on BOOK-V7E4AM7Q4G with PID 14488 (C:\work\springcloud\msa_with_spring_cloud\order-service\target\classes started by JUNGMINJI in C:\work\springcloud\msa_with_spring_cloud\order-service) 2023-04-15 21:57:34.183 DEBUG 14488 --- [ restartedMain] c.e.o.OrderServiceApplication : Running with Spring Boot v2.4.2, Spring v5.3.3 2023-04-15 21:57:34.184 INFO 14488 --- [ restartedMain] c.e.o.OrderServiceApplication : No active profile set, falling back to default profiles: default 2023-04-15 21:57:34.208 INFO 14488 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable 2023-04-15 21:57:34.209 INFO 14488 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG' 2023-04-15 21:57:34.626 INFO 14488 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode. 2023-04-15 21:57:34.670 INFO 14488 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 35 ms. Found 1 JPA repository interfaces. 2023-04-15 21:57:34.828 INFO 14488 --- [ restartedMain] o.s.cloud.context.scope.GenericScope : BeanFactory id=3562463c-b5e6-3ddc-abee-96251adfcd9a 2023-04-15 21:57:35.150 INFO 14488 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 0 (http) 2023-04-15 21:57:35.156 INFO 14488 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2023-04-15 21:57:35.156 INFO 14488 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.41] 2023-04-15 21:57:35.243 INFO 14488 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2023-04-15 21:57:35.243 INFO 14488 --- [ restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1034 ms 2023-04-15 21:57:35.265 INFO 14488 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... Debug is true storeKey false useTicketCache true useKeyTab false doNotPrompt true ticketCache is null isInitiator true KeyTab is null refreshKrb5Config is false principal is null tryFirstPass is false useFirstPass is false storePass is false clearPass is false Acquire TGT from Cache Principal is null null credentials from Ticket Cache [Krb5LoginModule] authentication failed Unable to obtain Principal Name for authentication 2023-04-15 21:57:36.324 ERROR 14488 --- [ restartedMain] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization. java.sql.SQLInvalidAuthorizationSpecException: Could not connect to address=(host=localhost)(port=3306)(type=master) : GSS-API authentication exception at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.createException(ExceptionFactory.java:66) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.create(ExceptionFactory.java:192) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1392) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:635) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:150) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.Driver.connect(Driver.java:89) ~[mariadb-java-client-2.7.1.jar:na] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.4.5.jar:na] at org.springframework.boot.autoconfigure.h2.H2ConsoleAutoConfiguration.lambda$h2Console$0(H2ConsoleAutoConfiguration.java:67) ~[spring-boot-autoconfigure-2.4.2.jar:2.4.2] at org.springframework.beans.factory.support.DefaultListableBeanFactory$DependencyObjectProvider.ifAvailable(DefaultListableBeanFactory.java:2035) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.boot.autoconfigure.h2.H2ConsoleAutoConfiguration.h2Console(H2ConsoleAutoConfiguration.java:66) ~[spring-boot-autoconfigure-2.4.2.jar:2.4.2] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1179) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:571) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:212) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:203) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:97) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:86) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:259) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:233) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:53) ~[spring-boot-2.4.2.jar:2.4.2] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5166) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na] at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) ~[na:na] at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.StandardService.startInternal(StandardService.java:434) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.41.jar:9.0.41] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:451) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:200) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:159) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2] at com.example.orderservice.OrderServiceApplication.main(OrderServiceApplication.java:12) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.2.jar:2.4.2] Caused by: java.sql.SQLException: GSS-API authentication exception at org.mariadb.jdbc.internal.com.send.authentication.gssapi.StandardGssapiAuthentication.authenticate(StandardGssapiAuthentication.java:169) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.com.send.authentication.SendGssApiAuthPacket.process(SendGssApiAuthPacket.java:133) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.authenticationHandler(AbstractConnectProtocol.java:752) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createConnection(AbstractConnectProtocol.java:553) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1387) ~[mariadb-java-client-2.7.1.jar:na] ... 78 common frames omitted Caused by: javax.security.auth.login.LoginException: Unable to obtain Principal Name for authentication at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.promptForName(Krb5LoginModule.java:819) ~[jdk.security.auth:na] at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:682) ~[jdk.security.auth:na] at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:592) ~[jdk.security.auth:na] at java.base/javax.security.auth.login.LoginContext.invoke(LoginContext.java:726) ~[na:na] at java.base/javax.security.auth.login.LoginContext$4.run(LoginContext.java:665) ~[na:na] at java.base/javax.security.auth.login.LoginContext$4.run(LoginContext.java:663) ~[na:na] at java.base/java.security.AccessController.doPrivileged(Native Method) ~[na:na] at java.base/javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:663) ~[na:na] at java.base/javax.security.auth.login.LoginContext.login(LoginContext.java:574) ~[na:na] at org.mariadb.jdbc.internal.com.send.authentication.gssapi.StandardGssapiAuthentication.authenticate(StandardGssapiAuthentication.java:119) ~[mariadb-java-client-2.7.1.jar:na] ... 82 common frames omitted 2023-04-15 21:57:36.376 INFO 14488 --- [ restartedMain] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default] 2023-04-15 21:57:36.394 INFO 14488 --- [ restartedMain] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.4.27.Final 2023-04-15 21:57:36.447 INFO 14488 --- [ restartedMain] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final} 2023-04-15 21:57:36.484 INFO 14488 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... Debug is true storeKey false useTicketCache true useKeyTab false doNotPrompt true ticketCache is null isInitiator true KeyTab is null refreshKrb5Config is false principal is null tryFirstPass is false useFirstPass is false storePass is false clearPass is false Acquire TGT from Cache Principal is null null credentials from Ticket Cache [Krb5LoginModule] authentication failed Unable to obtain Principal Name for authentication 2023-04-15 21:57:37.498 ERROR 14488 --- [ restartedMain] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization. java.sql.SQLInvalidAuthorizationSpecException: Could not connect to address=(host=localhost)(port=3306)(type=master) : GSS-API authentication exception at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.createException(ExceptionFactory.java:66) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.create(ExceptionFactory.java:192) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1392) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:635) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:150) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.Driver.connect(Driver.java:89) ~[mariadb-java-client-2.7.1.jar:na] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.4.5.jar:na] at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1847) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1784) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1159) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2] at com.example.orderservice.OrderServiceApplication.main(OrderServiceApplication.java:12) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.2.jar:2.4.2] Caused by: java.sql.SQLException: GSS-API authentication exception at org.mariadb.jdbc.internal.com.send.authentication.gssapi.StandardGssapiAuthentication.authenticate(StandardGssapiAuthentication.java:169) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.com.send.authentication.SendGssApiAuthPacket.process(SendGssApiAuthPacket.java:133) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.authenticationHandler(AbstractConnectProtocol.java:752) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createConnection(AbstractConnectProtocol.java:553) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1387) ~[mariadb-java-client-2.7.1.jar:na] ... 55 common frames omitted Caused by: javax.security.auth.login.LoginException: Unable to obtain Principal Name for authentication at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.promptForName(Krb5LoginModule.java:819) ~[jdk.security.auth:na] at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:682) ~[jdk.security.auth:na] at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:592) ~[jdk.security.auth:na] at java.base/javax.security.auth.login.LoginContext.invoke(LoginContext.java:726) ~[na:na] at java.base/javax.security.auth.login.LoginContext$4.run(LoginContext.java:665) ~[na:na] at java.base/javax.security.auth.login.LoginContext$4.run(LoginContext.java:663) ~[na:na] at java.base/java.security.AccessController.doPrivileged(Native Method) ~[na:na] at java.base/javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:663) ~[na:na] at java.base/javax.security.auth.login.LoginContext.login(LoginContext.java:574) ~[na:na] at org.mariadb.jdbc.internal.com.send.authentication.gssapi.StandardGssapiAuthentication.authenticate(StandardGssapiAuthentication.java:119) ~[mariadb-java-client-2.7.1.jar:na] ... 59 common frames omitted 2023-04-15 21:57:37.500 WARN 14488 --- [ restartedMain] o.h.e.j.e.i.JdbcEnvironmentInitiator : HHH000342: Could not obtain connection to query metadata java.sql.SQLInvalidAuthorizationSpecException: Could not connect to address=(host=localhost)(port=3306)(type=master) : GSS-API authentication exception at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.createException(ExceptionFactory.java:66) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.create(ExceptionFactory.java:192) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1392) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:635) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:150) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.Driver.connect(Driver.java:89) ~[mariadb-java-client-2.7.1.jar:na] at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.4.5.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.4.5.jar:na] at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1847) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1784) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1159) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2] at com.example.orderservice.OrderServiceApplication.main(OrderServiceApplication.java:12) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.2.jar:2.4.2] Caused by: java.sql.SQLException: GSS-API authentication exception at org.mariadb.jdbc.internal.com.send.authentication.gssapi.StandardGssapiAuthentication.authenticate(StandardGssapiAuthentication.java:169) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.com.send.authentication.SendGssApiAuthPacket.process(SendGssApiAuthPacket.java:133) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.authenticationHandler(AbstractConnectProtocol.java:752) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createConnection(AbstractConnectProtocol.java:553) ~[mariadb-java-client-2.7.1.jar:na] at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1387) ~[mariadb-java-client-2.7.1.jar:na] ... 55 common frames omitted Caused by: javax.security.auth.login.LoginException: Unable to obtain Principal Name for authentication at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.promptForName(Krb5LoginModule.java:819) ~[jdk.security.auth:na] at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:682) ~[jdk.security.auth:na] at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:592) ~[jdk.security.auth:na] at java.base/javax.security.auth.login.LoginContext.invoke(LoginContext.java:726) ~[na:na] at java.base/javax.security.auth.login.LoginContext$4.run(LoginContext.java:665) ~[na:na] at java.base/javax.security.auth.login.LoginContext$4.run(LoginContext.java:663) ~[na:na] at java.base/java.security.AccessController.doPrivileged(Native Method) ~[na:na] at java.base/javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:663) ~[na:na] at java.base/javax.security.auth.login.LoginContext.login(LoginContext.java:574) ~[na:na] at org.mariadb.jdbc.internal.com.send.authentication.gssapi.StandardGssapiAuthentication.authenticate(StandardGssapiAuthentication.java:119) ~[mariadb-java-client-2.7.1.jar:na] ... 59 common frames omitted 2023-04-15 21:57:37.501 ERROR 14488 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 2023-04-15 21:57:37.502 WARN 14488 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 2023-04-15 21:57:37.505 INFO 14488 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2023-04-15 21:57:37.512 INFO 14488 --- [ restartedMain] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2023-04-15 21:57:37.525 ERROR 14488 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1788) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1159) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.3.jar:5.3.3] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2] at com.example.orderservice.OrderServiceApplication.main(OrderServiceApplication.java:12) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.2.jar:2.4.2] Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1847) ~[spring-beans-5.3.3.jar:5.3.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1784) ~[spring-beans-5.3.3.jar:5.3.3] ... 22 common frames omitted Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:100) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:54) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:137) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] ... 39 common frames omitted Process finished with exit code 0 Could not connect to address=(host= localhost )(port=3306)(type=master) 이 내용을 봐서, 마리아 디비 서버와 연결이 안되는 것 같은데 도무지 어디에서 잘못된 것인지 모르겠습니다.. MySQLClient를 통해 마리아db서버에 정상적으로 접속했습니다. 시도한 방법 1. url, username, password 정보 확인 2. org.mariadb.jdbc 버전 다운그레이드 3. 마리아db 재설치
안녕하세요! 제가 강의를 다 듣고 난 뒤 추가로 공부를 해볼 생각으로 catalog-service 에서 example-catalog-topic 를 받은 뒤 상품의 개수를 파악 후 재고 유무의 따라 order-service 에 주문 상태를 전달 해주는 example-order-topic 를 만들어 구독 중인 order-service 에서 example-order-topic 에서 전달 받은 주문 상태를 업데이트 하는 로직을 구현하려고 했습니다. 로컬에서 order-service 와 catalog-service 의 consumer groupId 를 consumerGroupId 로 통일해서 사용 했을 때는 괜찮았으나, docker 에 올리니 example-order-topic 이 생성은 됐으나 구독 및 전달이 되지 않더라구요.... 혹시나 해서 order-service 의 consumer groupId 를 consumerGroupId2 로 변경하여 docker 에 올리니 정상 작동이 됩니다. 혹시 각각의 service 는 groupId 를 다르게 해주어야 할까요??
author이랑 isbn이 null로 나와있는데 싱글테이블에서 Album이랑 Movie에 관련된 컬럼은 안나오고 딱 Book이랑만 관련된 author이랑 isbn 만 null로 표시됐는데 이건 JPA가 Book인 걸 알아서 그것만 표시해주는건가요 ?? 어떻게 author이랑 isbn만 표시해주게 되는건지 궁금합니다 ..
안녕하세요 나도코딩님 오늘도 열심히 공부중인 학생입니다 ㅠㅠㅠ 복수전공 과목 중 자바로 배우는 자료구조를 수강중인데 사전에 자바 공부도 없이 듣는 수업이라 도통 무슨 소린지 이해가 가질 않네요.. 그래서 현재 고급편 결제하고 섹션9 추상클래스 까지 들은 상태인데 뒤로 갈수록 내용이 어려워져서 복습한다고 속도가 너무 늦어지는 상태에요.. 자료구조 내용을 이해하려면 일단 어떤 파트를 필수적으로 빨리 들어야 하고 어떤 파트는 빼도 되는지 알려주실 수 있을까요??ㅜ 답변 주시는데 도움이 될 지 모르겠지만 교재 한 챕터에 {자바 데이터 타입(기본타입, 참조타입), 제어문(조건문,반복문), 메소드(호출문,메인), try문} 이렇게만 존재하긴 하는데 중간중간 책에는 없는 추상클래스, 입력문 같은 파트도 보여서 감이 안잡히네요..
안녕하세요~ 강사님, 인터페이스(후반전) 강의를 듣고 있는데, 왜 인터페이스 변수를 만드는지 이해가 가지 않습니다. 수업 내용에서 FactoryCam이 인터페이스 Detectable과 Reportable을 구현하여 인터페이스에 있는 메소드를 FacstoryCam에서 구현해야한다는 것은 이해했습니다. 그리고 다른 클래스의 detect 메소드와 report 메소드를 호출하는것이라서 public void detect(){detecter.detect();} 이고, detecter은 객체이잖아요. 여기서 막힙니다. 이 객체랑 인터페이스 변수랑 무슨 상관인지? FactoryCam 의 인터페이스 변수를 생성해서 변수에 값 저장하는 걸로 하면 되지 않는지? 왜 인터페이스 변수를 선언해서 거기다가 값을 저장하는지, 잘 이해가 안 됩니다.... ㅠㅠ 그리고 추가로, 인터페이스로 다중 상속이 가능하다고 하셨는데, 수업 내용 중 어떤 것이 다중 상속이 되고 있는지 파악하기가 어렵습니다. 혹시, 다른 클래스의 메소드를 호출할 수 있는 부분때문에 다중 상속이 가능한 것인가요? 후반부로 갈수록 어렵네요 ㅠㅠ
학습하는 분들께 도움이 되고, 더 좋은 답변을 드릴 수 있도록 질문전에 다음을 꼭 확인해주세요. 1. 강의 내용과 관련된 질문을 남겨주세요. 2. 인프런의 질문 게시판과 자주 하는 질문(링크)을 먼저 확인해주세요. (자주 하는 질문 링크: https://bit.ly/3fX6ygx) 3. 질문 잘하기 메뉴얼(링크)을 먼저 읽어주세요. (질문 잘하기 메뉴얼 링크: https://bit.ly/2UfeqCG) 질문 시에는 위 내용은 삭제하고 다음 내용을 남겨주세요. ========================================= [질문 템플릿] 1. 강의 내용과 관련된 질문인가요? (예/아니오) 2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? (예/아니오) 3. 질문 잘하기 메뉴얼을 읽어보셨나요? (예) [질문 내용] 여기에 질문 내용을 남겨주세요. 안녕하십니까, 자주하는 질문 에서 학습방법을 봤는데 코드를 쭉 따라하는식 방법이 적혀있었는데, 이렇게 따라만 해도 공부가 되는게 맞을까 혹시나 하는 마음에 따로 질문을 올리게 되었습니다. 따로 국비학원 수료 없이 학교 졸업하자마자 취업했는데 백엔드 스프링을 사용한다해서 선생님 강의 커리큘럼을 따라갈려고합니다. 스프링을 배우는데 자바 기본 지식이 필요하다해서 자바의 정석 유튜브를 먼저 보고, 부족하지만 최대한 자바 기본 문법개념 같은걸 숙지한 상태에서 선생님 영상 시청하고있습니다. 선생님의 이론수업이 정말로 재밌고 스프링 입문하는데 좋은걸 알겠는데 이론설명뒤에 선생님이 치시는 코드가 무엇을 의미 해석이 안되고, 코드형식(?) 코드 구조 (문법?) 이게 정말 와닿지 않는 상태이다보니 ,영상을 보고 타이핑하니깐 공부 하는 느낌이 안들어서 걱정이 됩니다. 프로그래밍 능력, 자바기초실력이 부족해서 이런 느낌을 받는 거 같은데 회사 실무에 도움이 될까 걱정이 됩니다.처음 취직한 회사라서 최대한 적응하고 회사에 도움이 되는 개발자가 되어보고싶은데 어떠한 방식으로 공부를 해야할 지 조언이 가능할까요? (혹시 책이나 강의같은걸 추천해주시면 감사하겠습니다.)
안녕하세요, 빅디님 ! 좋은강의 감사합니다. 가상서버 설치 + 설정에서 문제가 있어 질문남깁니다. macOS에서 M1칩을 탑재한 모델을 사용중인데, 최신버전의 virtualbox만 설치가 됩니다. (이하 버전은 설치조차 되지 않습니다..ㅠ) 설치는 되었으나 청천벽력같이.... 최신버전의 버츄얼박스에서는 server01/02가 시작이 되질 않습니다. 네트워크 구성 에러로 보입니다. [에러 전문] === Host-only adapters are no longer supported! For your convenience a host-only network named 'Legacy Network' has been created with network mask '255.255.255.0' and IP address range '192.168.56.1' - '192.168.56.254'. === 이러한 경우에 유일한 해결방법은 최신버전의 VM을 설치하고 네트워크 구성을 하지 않아야 시작이 되는 것으로 파악했습니다. 서버에 네트워크가 없다면 의미가 없어보입니다.. 이 수업에서는 네트워크 구성이 필수일까요? 혹은 다른 방법(가상화 서버 등) 아신다면 말씀 부탁드리겠습니다!! 감사합니다.
자바가 느려서인지, 아니면 제가 첨부터 접근을 잘못한건지 모르겠습니다. ㅠㅠ package lecture4; import java.util.*; public class Prob1062 { static List<Set<Character>> sets = new ArrayList<>(); public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int k = sc.nextInt(); if(k<5){ System.out.println(0); return; }else if (k==26){ System.out.println(n); return; } List<String> list = new ArrayList<>(); for (int i = 0; i < n; i++) { // 문자열 입력 받기 String str = sc.next(); list.add(str); Set<Character> set = new HashSet<>(); // 각 문자열의 문자들을 Set에 저장. for (char c : str.toCharArray()) { set.add(c); } sets.add(set); } List<Set<Character>> filtered = new ArrayList<>(); for (int i = 0; i < n; i++) { // K 보다 많은 알파벳으로 이루어진 경우 제외 if(sets.get(i).size()<=k){ filtered.add(sets.get(i)); } } List<Integer> masks = new ArrayList<>(); for (Set<Character> set : filtered) { // Set의 각 알파벳을 대응되는 비트마스크로 표현 masks.add(setToMask(set)); } int mask = 1; int max = 0; while (mask < (1<<26)-1){ // 모든 경우의 수 탐색 if(Integer.bitCount(mask)>k){ // 비트마스크의 1 개수가 k 보다 크면 다음 경우로 넘어가기 mask++; continue; } int count = 0; for (Integer m : masks) { // 문자열을 비트마스크로 표현한 것을 비교해서 읽을 수 있는건지 개수 샘 if((mask & m) == m){ count++; } } max = Math.max(max,count); // 최대값 저장 mask++; } System.out.println(max); } private static int setToMask(Set<Character> set){ int[] num = new int[26]; for (Character character : set) { num[25 - (character-'a')] = 1; } StringBuffer sb = new StringBuffer(); for (int i : num) { sb.append(i); } return Integer.parseInt(sb.toString(),2); } }
안녕하세요, 강의 내용을 Colab를 통해서 실습을 하고 있습니다. 다른 코드를 실행 할때는 별 문제가 없었지만, 산탄데르 은행 데이터셋과 사기검출 데이터셋을 실행할때 read_csv를 통해 csv파일을 읽어오면 실행 할때마다(런타임이 바뀔때 마다) read된 결과가 다른데 왜 그런지 알 수 있을까요? 사기검출 데이터의 경우 25838 rows × 31 columns 로 읽히는 경우도 있고, 39702 rows × 31 columns로 읽어지는 경우도 있습니다. 두 데이터셋다 공통적으로 Nan 값도 생기기도 하네요. 런타임을 몇번 초기화 하다보면 운좋게(?) 정상적으로 읽어지는 경우도 있습니다. 왜 실행할때마다 결과가 다르게 나오는지 궁금합니다!
