VM Name: Server01Failed to open/create the internal network 'HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter' (VERR_INTNET_FLT_IF_NOT_FOUND).Failed to attach the network LUN (VERR_INTNET_FLT_IF_NOT_FOUND).Result Code:E_FAIL (0X80004005)Component:ConsoleWrapInterface:IConsole {6ac83d89-6ee7-4e33-8ae6-b257b2e81be8}  이런 오류가 뜨는데 어떻게 해결하면 좋을까요?? 구글링 해보니 host-only-ethernet을 새로만들고 다시 해보라고 하던데 그 방법도 되지 않습니다.Virtualbox 버전은 7.0.8 최신버전입니다.

안녕하세요. 강의 끝까지 잘 들었습니다.이해한 바가 맞는지 궁금해서 문의 드립니다.카프카 커넥트데이터 파이프라인을 반복적이라고 하는 것이 1분에 한번씩 브로커로 Record를 전송하고 이를 Consumer에서 가져와서 사용하는 경우에 카프카 커넥터가 적합하다고 하신 것으로 이해하면 될까요? 반면 1회 데이터를 Producer가 전송하고 Consumer가 처리하는 경우에는 일반적인 Producer/Consumer가 적합하다는 것으로 이해했는데 맞는지 궁금합니다.Producer/Consumer or Source Connector/Sync ConnectorProducer(Source Connector)쪽이 3개의 Server, Consumer쪽이 3개의 서버로 구성된다고 할때 실제 각 Producer/Consumer는 개별 서버에서 Application을 실행시켜줘야 하는 것으로 이해가 되는데 이게 맞을까요?좋은 강의 제공해주셔서 감사합니다.

랜덤 포트를 지정하는게 좋다고 설명해주셨는데요Kakao login OAuth2 를 사용해서 로그인하는 경우 Redirect URI를 지정해야합니다. Gateway 주소(http://localhsot:8080/user-service/api/...)를 등록해도 결국 localhost:54241 이렇게 넘어 가기 때문에 에러가 발생하는데 이 경우에도 랜덤 포트 사용하는게 맞나요?

windows 10, eclipse에서 수업을 따라하고 있습니다.서버 동작도 안 되었는데.m2파일 중 configu와 관련된 내용 지우고 이클립스 다시 시작하니 config서버가 동작은 합니다.그런데git 레파지토리에 있는 ecommerce.yml파일을 읽지 못 하는지, 아니면 자신이 일반 서버로 착각하는지 404 에러가 납니다.이미지를 첨부했습니다.어떻게 해야 이 고통에서 벗어날 수 있을까요?동영상 강의 보면, 쉽게 배울 수 있을 거라 생각했는데동영상 강의 촬영일과 2년 정도 차이가 나니 이런 저런 걸로 계속 에러가 나네요.

안녕하세요 강사님!강의 잘보고 있습니다.강의시간 18:58에 sink 생성 후 status 확인 값에서 tasks.state 값이 failed라고 뜹니다.그래서 connect 로그를 보면 아래와 같이 뜹니다.[2023-05-02 00:04:12,636] ERROR [my-order-sink-connect|task-0] WorkerSinkTask{id=my-order-sink-connect-0} Task threw an uncaught and unrecoverable exception. Task is being killed and will not recover until manually restarted (org.apache.kafka.connect.runtime.WorkerTask:196) org.apache.kafka.connect.errors.ConnectException: Tolerance exceeded in error handler at org.apache.kafka.connect.runtime.errors.RetryWithToleranceOperator.execAndHandleError(RetryWithToleranceOperator.java:223) at org.apache.kafka.connect.runtime.errors.RetryWithToleranceOperator.execute(RetryWithToleranceOperator.java:149) at org.apache.kafka.connect.runtime.WorkerSinkTask.convertAndTransformRecord(WorkerSinkTask.java:516) at org.apache.kafka.connect.runtime.WorkerSinkTask.convertMessages(WorkerSinkTask.java:493) at org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:332) at org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:234) at org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:203) at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:189) at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:244) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.kafka.connect.errors.DataException: JsonConverter with schemas.enable requires "schema" and "payload" fields and may not contain additional fields. If you are trying to deserialize plain JSON data, set schemas.enable=false in your converter configuration. at org.apache.kafka.connect.json.JsonConverter.toConnectData(JsonConverter.java:328) at org.apache.kafka.connect.storage.Converter.toConnectData(Converter.java:88) at org.apache.kafka.connect.runtime.WorkerSinkTask.lambda$convertAndTransformRecord$4(WorkerSinkTask.java:516) at org.apache.kafka.connect.runtime.errors.RetryWithToleranceOperator.execAndRetry(RetryWithToleranceOperator.java:173) at org.apache.kafka.connect.runtime.errors.RetryWithToleranceOperator.execAndHandleError(RetryWithToleranceOperator.java:207) ... 13 more 구글링 해봐도 원하는 답변들이 없어 남겨봅니다.

안녕 하세요 궁금한 사항이 있어서 문의드립니다.Debezium CDC source connector 강의 내용중redo 로그에 commit되지 않은 데이터도 쓰여진다고 말씀해주셨는데요저보다 당연히 잘 아시겠지만 제가 알기로는 commit하면 버퍼에 쌓이고 디스크에는 반영되지 않고 그 이후에 주기적으로redo log에 쌓이는 것으로 알고 있습니다즉 commit이 되어야 redo log에 쌓이는 걸로 알고 있는데 제가 잘못알고 있는걸까요? 감사합니다.

현재 학습하고 있는 스프링 버전은 3.0.5 버전입니다.implementation 'org.springframework.cloud:spring-cloud-starter-config' implementation 'org.springframework.cloud:spring-cloud-starter-bootstrap'위 두개의 라이브러리를 추가한 후 bootstrap.yml 파일을 생성해서 아래와 같이 작성을 하면 spring: cloud: config: uri: http://localhost:8888 name: ecommerce서버 실행 후 아래와 같이 로그가 출력됩니다. . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v3.0.5) 2023-05-01T17:24:26.009+09:00 INFO 81323 --- [ restartedMain] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at : http://localhost:8888 2023-05-01T17:24:26.117+09:00 INFO 81323 --- [ restartedMain] c.c.c.ConfigServicePropertySourceLocator : Located environment: name=ecommerce, profiles=[default], label=null, version=6bb0cd579b695bb651be6edc215d85335734c939, state=null 2023-05-01T17:24:26.117+09:00 INFO 81323 --- [ restartedMain] b.c.PropertySourceBootstrapConfiguration : Located property source: [BootstrapPropertySource {name='bootstrapProperties-configClient'}, BootstrapPropertySource {name='bootstrapProperties-file:///Users/..../git-local-repo/ecommerce.yml'}]name=ecommerce로 정상적으로 불러지고 있고, yml 파일 위치도 정상적으로 출력이 됩니다.하지만 서버가 실행되다가 8888포트를 이미 사용을 하고 있다는 메시지와 함께 서버가 종료가 되었습니다.검색을 해 보니 2.4버전대부터 설정하는 방법이 바뀌었다고 해서 변경된 방법으로 적용을 했습니다.bootstrap 라이브러리를 삭제했습니다.implementation 'org.springframework.cloud:spring-cloud-starter-config'bootstrap.yml 파일을 삭제했습니다.application.yml 파일에 내용을 추가했습니다.spring: config: name: ecommerce import: optional:configserver:http://localhost:8888그리고 실행을 하면 아래와 같이 name=user-service로 적용이 됩니다.2023-05-01T17:33:51.792+09:00 INFO 82127 --- [ restartedMain] o.s.c.c.c.ConfigServerConfigDataLoader : Fetching config from server at : http://localhost:8888 2023-05-01T17:33:51.792+09:00 INFO 82127 --- [ restartedMain] o.s.c.c.c.ConfigServerConfigDataLoader : Located environment: name=user-service, profiles=[default], label=null, version=6bb0cd579b695bb651be6edc215d85335734c939, state=null이유가 application.yml 파일에서 config 설정 윗 부분에spring: application: name: user-service이렇게 application name을 설정을 해서 그렇게 나오는것 같습니다.그리고 로그중에 아래와 같이 뜨는데2023-05-01T17:33:51.793+09:00 INFO 82127 --- [ restartedMain] o.s.b.devtools.restart.ChangeableUrls : The Class-Path manifest attribute in /Users/.../.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/4.0.1/bad26cea1d483dda57b6f634cdeaca3238637aea/jaxb-impl-4.0.1.jar referenced one or more files that do not exist: file:/Users/.../.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/4.0.1/bad26cea1d483dda57b6f634cdeaca3238637aea/jaxb-core.jar,file:/Users/.../.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/4.0.1/bad26cea1d483dda57b6f634cdeaca3238637aea/angus-activation.jar 2023-05-01T17:33:51.794+09:00 INFO 82127 --- [ restartedMain] o.s.b.devtools.restart.ChangeableUrls : The Class-Path manifest attribute in /Users/.../.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/4.0.1/e8bf2d711d2d4250537199602bccae0cd4e62726/jaxb-core-4.0.1.jar referenced one or more files that do not exist: file:/Users/.../.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/4.0.1/e8bf2d711d2d4250537199602bccae0cd4e62726/jakarta.activation-api.jar,file:/Users/.../.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/4.0.1/e8bf2d711d2d4250537199602bccae0cd4e62726/jakarta.xml.bind-api.jar아래의 라이브러리중 어떤것을 설치를 해도 똑같은 로그가 출력됩니다.파일이 존재하지 않는다는 내용인데.. INFO레벨로 출력이 되서 우선은 그냥 넘어갔습니다. implementation 'javax.xml.bind:jaxb-api:2.4.0-b180830.0359' // implementation group: 'javax.xml.bind', name: 'jaxb-api', version: '2.2.4' user-service를 실행을 시켜보면 아래와 같이 외부 설정 파일의 값을 읽어오지 못하고 있습니다.It's Working in User Service, port(local.server.port)=56942, port(server.port)=0, token secret=null, token expiration time=null아래의 공식 문서도 참고를 해 봤는데 어느 부분이 잘못됐는지 모르겠더라구요..https://docs.spring.io/spring-cloud-config/docs/current/reference/html/이 전단계의 git-local-repo 디렉토리를 만들어서 git을 commit까지 하는것은 정상적으로 됐고, 설정파일을 읽어오는것까지는 정상적으로 됐었습니다.제 경우 한가지 이슈사항이 있던 부분은 git branch가 master로 되어있어서 오류가 나는 부분이 있어서 그 부분은 git branch를 main으로 하나 만들어서 적용을 하니 해당 오류는 해결이 됐었습니다. 최신 버전으로 적용을 할려고 하니 이리저리 쉽지가 않네요..    

안녕하세요. 강의에서 config-service의 yml 파일 내 uri와 jks 파일의 위치를 바꿔서 docker에서 실행해도 강의에서 나왔던 오류가 발생합니다. bootstrap.ymlencrypt: # key: abcdefghijkimnopqrstuvwxz0123456789 key-store: location: file:/apiEncryptionKey.jks password: test1234 alias: apiEncryptionKeyjks 파일의 위치를 Dockerfile과 동일한 경로에 복사했습니다. application.ymlserver: port: 8888 spring: application: name: config-server rabbitmq: host: 127.0.0.1 port: 5672 username: guest password: guest cloud: config: server: native: search-locations: file://C:\work\springcloud\git-local-repo git: uri: https://github.com/mjjunng/spring-cloud-config management: endpoints: web: exposure: include: health, busrefresh docker 실행 로그해당 에러를 확인해보면, 강의에서 파일의 위치를 변경하지 않았던 에러와 동일한 것으로 생각됩니다. 강의와 마찬가지로 파일 경로를 바꿔도 해당 에러가 발생하는데, 제가 놓친 부분이 있을까요?

강사님이 제공하기 파일로 진행하고 있었습니다..\bin\windows\connect-distributed.bat . \etc\kafka\connect-distributed.properties위의 명령어로 kafka connect을 실행하려하는데 아래와 같은 에러가 발생합니다.log4j:ERROR Could not read configuration file from URL [file:C:/Work/confluent-7.3.1/config/connect-log4j.properties].java.io.FileNotFoundException: C:\Work\confluent-7.3.1\config\connect-log4j.properties (지정된 경로를 찾을 수 없습니다)at java.base/java.io.FileInputStream.open0(Native Method)at java.base/java.io.FileInputStream.open(FileInputStream.java:219)at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)at java.base/java.io.FileInputStream.<init>(FileInputStream.java:112)at java.base/sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:86)at java.base/sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:184)at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:557)at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:504)at org.apache.log4j.LogManager.<clinit>(LogManager.java:119)at org.slf4j.impl.Reload4jLoggerFactory.<init>(Reload4jLoggerFactory.java:67)at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:72)at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:45)at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:417)at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:362)at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:388)at org.apache.kafka.connect.cli.ConnectDistributed.<clinit>(ConnectDistributed.java:59)log4j:ERROR Ignoring configuration file [file:C:/Work/confluent-7.3.1/config/connect-log4j.properties].log4j:WARN No appenders could be found for logger (org.apache.kafka.connect.runtime.WorkerInfo).log4j:WARN Please initialize the log4j system properly.log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.log4j 가 없다는거 같은데 어떻게 해결할지 알려주시면 감사하겠습니다..

이왕 강의를 들은 김에 자격증도 한번 생각해보려고 하는데요.강의 내용만 충실하게 들으면 자격증 시험에 도전해볼만할까요?아니면 별도로 더 준비를 해야 하는지 궁금합니다.

안녕하세요, 제 질문은 아래와 같습니다. '강의를 시작하며' 수업에서 본 강의는 'Spring Boot를 이용한 RESTful Web Services 개발' 강의의 후속 강의라고 말씀해주셨습니다. 기존에 Rest API를 알고 있음에도, 'Spring Boot를 이용한 RESTful Web Services 개발' 강의를 먼저 들어야만 할까요? 감사합니다.

https://github.com/chulminkw/KafkaConnect/blob/723d598394241434f424184998176c903c0967f9/%EC%8B%A4%EC%8A%B5%EC%88%98%ED%96%89/JDBC%20Sink%20Connector%20%EC%8B%A4%EC%8A%B5.mdSource 테이블과 연계하여 Sink 테이블에 데이터 연동 테스트다른 테이블에 대해서도 Sink Connector를 생성하고 Source 테이블에 데이터 입력하여 Sink(Target) 테이블에 데이터가 동기화 되는지 확인.products_sink용 sink connector를 위해서 아래 설정을 mysql_jdbc_sink_products.json 파일에 저장.{ "name": "mysql_jdbc_sink_products", "config": { "connector.class":"io.confluent.connect.jdbc.JdbcSinkConnector", "tasks.max": "1", "topics": "mysql_jdbc_products", "connection.url": "jdbc:mysql://localhost:3306/om_sink", "connection.user": "connect_dev", "connection.password": "connect_dev", "insert.mode": "upsert", "pk.mode": "record_key" "pk.fields": "product_id", "delete.enabled": "true", "table.name.format": "om_sink.products_sink", "key.converter": "org.apache.kafka.connect.json.JsonConverter", "value.converter": "org.apache.kafka.connect.json.JsonConverter" } } 실습하다가 발견해서 제보드립니다.해당부분 Git에 "pk.mode": "record_key" 다음에 쉼표가 없어 register_connector 가 작동되지 않았었습니다.쉼표를 추가하니 해결되었습니다 ㅎㅎ 

DB 패스워드를 암호화하기 위해 key-store를 생성하게 되는데여기에서도 key-store의 패스워드가 yml 설정파일에 존재하게 되는 것으로 이해했습니다.key-store의 패스워드는 암호화 하지 않아도 되는건지 헷갈려서 질문드립니다.만약 암호화가 필요하다면 DB 패스워드를 암호화 하기 위한 key-store의 패스워드를 암호화 하기위한 key-store..... 이런식으로 무한루프가 돌 것 같은데 실무 환경에서는 어떻게 사용하고 있는지 궁금합니다.

eureka.clinet.fetch-registry : true 의미가 클라이언트가 유레카 서버를 통해 다른 서비스 정보를 얻기을 수 있다고 알고있습니다. 여기서 궁금한 점이 있는데인스턴스가 다른 인스턴스의 정보가 필요한 이유가 자신이 받은 요청이 다른 인스턴스의 서비스가 필요할 떄가 있어서 그런 건가요??

kafka-console-consumer --bootstrap-server localhost:9092 --topic spooldir-test-topic --from-beginning --property print.key=true으로 명령어를 쳤을 경우 응답 값이 강사님의 경우에는 schema와 payload로 값이 나오는데 저 같은 경우에는Struct{} {"id":"1000","first_name":"Phineas","last_name":"Frede","email":"pfrederr@weather.com","gender":"Male","ip_address":"59.83.98.78","last_login":"2015-12-04T22:18:07Z","account_balance":"14095.22","country":"PK","favorite_color":"#4f2f2b"}이렇게 나오게 되는데요버전 차이 일까요? connector 설정은 아래와 같습니다{ "name": "csv_spooldir_source", "config": { "tasks.max": "3", "connector.class": "com.github.jcustenborder.kafka.connect.spooldir.SpoolDirCsvSourceConnector", "input.path": "/home/appuser/spool_test_dir", "input.file.pattern": "^.*\\.csv", "error.path": "/home/appuser/spool_test_dir/error", "finished.path": "/home/appuser/spool_test_dir/finished", "empty.poll.wait.ms": 30000, "halt.on.error": "false", "topic": "spooldir-test-topic", "csv.first.row.as.header": "true", "schema.generation.enabled": "true" } }감사합니다.

환경 문제로 인하여 Oracle Cloud Vm 서버 3개를 별도로 띄어 실습 환경을 구성하였습니다.문제는 Hbase 에 적재가 안된다는 것입니다.일단 환경구성에서 모든 모듈들을 latest기준으로 구성을하여서 강의내용과는 다를수가 있을듯한데요.데이터 수집 적재 파이프라인 에서 kafka 까지 들어오는것은 확인하였으나 storm 토폴로지에서 kafkaspout 에서 반응이 없는것으로 봤을때 bigdata.smartcar.storm-1.0.jar 에서 바라보는 어떠한 환경설정정보가 맞지 않아 생긴문제로 생각이되어 소스를 봤으나 별다르게 찾은것은 없습니다.zookeeper cli 에서는 kafa producer 노드가 있는것은 확인했고 SmartCar-Topic 노드는 없는것으로 확인했습니다.혹시 놓친부분이 있을까요?

고생하십니다.질문은 해당 강의 진행중에 에러가 발생하여 질문드립니다. vi ~/connector_configs/mysql_jdbc_om_source_00.json을 통한 사전 설정값{ "name": "mysql_jdbc_om_source_00", "config": { "connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector", "tasks.max": "1", "connection.url": "jdbc:mysql://localhost:3306/om", "connection.user": "connect_dev", "connection.password": "connect_dev", "topic.prefix": "mysql_om_", "topic.creation.default.replication.factor": 1, "topic.creation.default.partitions": 1, "catalog.pattern": "om", "table.whitelist": "om.customers", "poll.interval.ms": 10000, "mode": "incrementing", "incrementing.column.name": "customer_id" } }  명령실행값http POST http://localhost:8083/connectors @mysql_jdbc_om_source_00.json명령 결과값HTTP/1.1 201 Created Content-Length: 566 Content-Type: application/json Date: Tue, 25 Apr 2023 01:47:21 GMT Location: http://localhost:8083/connectors/mysql_jdbc_om_source_00 Server: Jetty(9.4.44.v20210927) { "config": { "catalog.pattern": "om", "connection.password": "connect_dev", "connection.url": "jdbc:mysql://localhost:3306/om", "connection.user": "connect_dev", "connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector", "incrementing.column.name": "customer_id", "mode": "incrementing", "name": "mysql_jdbc_om_source_00", "poll.interval.ms": "10000", "table.whitelist": "om.customers", "tasks.max": "1", "topic.creation.default.partitions": "1", "topic.creation.default.replication.factor": "1", "topic.prefix": "mysql_om_" }, "name": "mysql_jdbc_om_source_00", "tasks": [], "type": "source" } 이렇게 post를 통해서 올렸을 때, CONNECT쪽에서 아래와 같은 문제가 계속 발생하고 있습니다. Either no records were produced by the task since the last offset commit, or every record has been filtered out by a transformation or dropped due to transformation or conversion errors. (org.apache.kafka.connect.runtime.WorkerSourceTask:484)connect에 에러가 발생해 일단 강의 진행을 멈춘 상태입니다. 제가 혹시 놓친 부분이 있을지 질문드립니다. 

안녕하세요. 저같은사람이 없기를 바라며 오류 해결법을 올립니다...환경은 23년 기준 스프링부트. 스프링클라우드 모두 최신버전입니다. (대신 강의처럼 maven이 아닌 gradle입니다)23년 4월중순부터 강의를 잘 따라하다가 빌드후 실행하면 user-service에서 에러가 나는겁니다.openfeign 관련 에러였습니다.  org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'rabbitConnectionFactory': Singleton bean creation not allowed while singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:220) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:205) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.context.event.AbstractApplicationEventMulticaster.retrieveApplicationListeners(AbstractApplicationEventMulticaster.java:264) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.event.AbstractApplicationEventMulticaster.getApplicationListeners(AbstractApplicationEventMulticaster.java:221) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:413) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:419) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:370) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1036) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1003) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.cloud.context.named.NamedContextFactory.destroy(NamedContextFactory.java:113) ~[spring-cloud-context-4.0.1.jar:4.0.1] at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:200) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1177) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1170) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1084) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:597) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.run(SpringApplication.java:310) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1304) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1293) ~[spring-boot-3.0.4.jar:3.0.4] at com.example.userservice.UserServiceApplication.main(UserServiceApplication.java:20) ~[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-3.0.4.jar:3.0.4] 2023-04-24T23:38:38.274+09:00 INFO 14780 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default' 2023-04-24T23:38:38.274+09:00 INFO 14780 --- [ restartedMain] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down' 2023-04-24T23:38:38.480+09:00 WARN 14780 --- [ restartedMain] o.s.b.f.support.DisposableBeanAdapter : Invocation of destroy method failed on bean with name 'inMemoryDatabaseShutdownExecutor': org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database is already closed (to disable automatic closing at VM shutdown, add ";DB_CLOSE_ON_EXIT=FALSE" to the db URL) [90121-214] 2023-04-24T23:38:38.481+09:00 INFO 14780 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2023-04-24T23:38:38.484+09:00 INFO 14780 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed. 2023-04-24T23:38:38.486+09:00 INFO 14780 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2023-04-24T23:38:38.509+09:00 INFO 14780 --- [ restartedMain] .s.b.a.l.ConditionEvaluationReportLogger : Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled. 2023-04-24T23:38:38.534+09:00 ERROR 14780 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController' defined in file [E:\study\1.Web\2.BackEnd\MSA\user-service\out\production\classes\com\example\userservice\controller\UserController.class]: Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'orderServiceClient': Error creating bean with name 'com.example.userservice.client.OrderServiceClient': FactoryBean threw exception on object creation at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:245) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1344) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1188) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:561) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:961) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[spring-context-6.0.6.jar:6.0.6] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.run(SpringApplication.java:310) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1304) ~[spring-boot-3.0.4.jar:3.0.4] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1293) ~[spring-boot-3.0.4.jar:3.0.4] at com.example.userservice.UserServiceApplication.main(UserServiceApplication.java:20) ~[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-3.0.4.jar:3.0.4] Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'orderServiceClient': Error creating bean with name 'com.example.userservice.client.OrderServiceClient': FactoryBean threw exception on object creation at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:712) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:692) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:133) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:481) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1408) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:598) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1405) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789) ~[spring-beans-6.0.6.jar:6.0.6] ... 24 common frames omitted Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.example.userservice.client.OrderServiceClient': FactoryBean threw exception on object creation at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:154) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:90) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1823) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1265) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:259) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1628) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1585) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1368) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325) ~[spring-beans-6.0.6.jar:6.0.6] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:709) ~[spring-beans-6.0.6.jar:6.0.6] ... 39 common frames omitted Caused by: java.lang.IllegalStateException: PathVariable annotation was empty on param 0. at feign.Util.checkState(Util.java:136) ~[feign-core-12.1.jar:na] at org.springframework.cloud.openfeign.annotation.PathVariableParameterProcessor.processArgument(PathVariableParameterProcessor.java:52) ~[spring-cloud-openfeign-core-4.0.1.jar:4.0.1] at org.springframework.cloud.openfeign.support.SpringMvcContract.processAnnotationsOnParameter(SpringMvcContract.java:280) ~[spring-cloud-openfeign-core-4.0.1.jar:4.0.1] at feign.Contract$BaseContract.parseAndValidateMetadata(Contract.java:126) ~[feign-core-12.1.jar:na] at org.springframework.cloud.openfeign.support.SpringMvcContract.parseAndValidateMetadata(SpringMvcContract.java:193) ~[spring-cloud-openfeign-core-4.0.1.jar:4.0.1] at feign.Contract$BaseContract.parseAndValidateMetadata(Contract.java:65) ~[feign-core-12.1.jar:na] at feign.ReflectiveFeign$ParseHandlersByName.apply(ReflectiveFeign.java:142) ~[feign-core-12.1.jar:na] at feign.ReflectiveFeign.newInstance(ReflectiveFeign.java:58) ~[feign-core-12.1.jar:na] at feign.ReflectiveFeign.newInstance(ReflectiveFeign.java:50) ~[feign-core-12.1.jar:na] at feign.Feign$Builder.target(Feign.java:197) ~[feign-core-12.1.jar:na] at org.springframework.cloud.openfeign.DefaultTargeter.target(DefaultTargeter.java:30) ~[spring-cloud-openfeign-core-4.0.1.jar:4.0.1] at org.springframework.cloud.openfeign.FeignClientFactoryBean.loadBalance(FeignClientFactoryBean.java:398) ~[spring-cloud-openfeign-core-4.0.1.jar:4.0.1] at org.springframework.cloud.openfeign.FeignClientFactoryBean.getTarget(FeignClientFactoryBean.java:446) ~[spring-cloud-openfeign-core-4.0.1.jar:4.0.1] at org.springframework.cloud.openfeign.FeignClientFactoryBean.getObject(FeignClientFactoryBean.java:421) ~[spring-cloud-openfeign-core-4.0.1.jar:4.0.1] at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:148) ~[spring-beans-6.0.6.jar:6.0.6] ... 50 common frames omitted Process finished with exit code 0에러는 다음과 같구요...Error creating bean with name 'rabbitConnectionFactory'를 아무리 검색해도 답이 안나오길래중간에 PathVariable annotation was empty on param 0.를 검색해서OrderSerivceClient 인터페이스에서 getOrders 함수의 @PathVariable에 value를 써주니까 에러가 사라졌습니다!! 뭔가 lib파일이 업데이트 됐다봅니다...  before@GetMapping("/order-service/{userId}/orders") List<ResponseOrder> getOrders(@PathVariable String userId); after@GetMapping("/order-service/{userId}/orders") List<ResponseOrder> getOrders(@PathVariable(value = "userId") String userId); 세시간동안 gradle로 초기화해보고 별짓 다해보다 포기하려던 찰나에 해결했습니다.저같은분은 없기를 바라겠습니다... 블로그 참조 https://lemontia.tistory.com/1046  혹시 다른방식으로 해결하신분 답변 부탁드립니다!

Users Microservice - JPA 수강중입니다.실습 따라서 작성하고 있는데 오류가 나는데 잘 모르겠습니다.UserServiceImpl 에서ModelMapper mapper = new ModelMapper();mapper.getConfiguration().setMatchingStrategy(MatchingStrategies.STRICT);UserEntity userEntity = mapper.map(userDto, UserEntity.class);userEntity.setEncryptedPwd("encrypted_password");여기까지 값이 잘 찍히다가 userRepository.save(userEntity); <-- 여기서 오류가 납니다. 2023-04-24T21:55:59.923+09:00 ERROR 3608 --- [o-auto-1-exec-6] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: java.lang.NullPointerException: Cannot invoke "com.example.userservice.jpa.UserRepository.save(Object)" because "this.userRepository" is null] with root causejava.lang.NullPointerException: Cannot invoke "com.example.userservice.jpa.UserRepository.save(Object)" because "this.userRepository" is null at com.example.userservice.service.UserServiceImpl.createUser(UserServiceImpl.java:32) ~[classes/:na] at com.example.userservice.controller.UserController.createUser(UserController.java:45) ~[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.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207) ~[spring-web-6.0.7.jar:6.0.7] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152) ~[spring-web-6.0.7.jar:6.0.7] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.0.7.jar:6.0.7] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884) ~[spring-webmvc-6.0.7.jar:6.0.7] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-6.0.7.jar:6.0.7] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.0.7.jar:6.0.7] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081) ~[spring-webmvc-6.0.7.jar:6.0.7] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974) ~[spring-webmvc-6.0.7.jar:6.0.7] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011) ~[spring-webmvc-6.0.7.jar:6.0.7] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914) ~[spring-webmvc-6.0.7.jar:6.0.7] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:563) ~[tomcat-embed-core-10.1.7.jar:6.0] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.0.7.jar:6.0.7] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:631) ~[tomcat-embed-core-10.1.7.jar:6.0] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-10.1.7.jar:10.1.7] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.0.7.jar:6.0.7] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.7.jar:6.0.7] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.0.7.jar:6.0.7] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.7.jar:6.0.7] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.0.7.jar:6.0.7] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.7.jar:6.0.7] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-10.1.7.jar:10.1.7] at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]    

안녕하세요, 빅디님!차근차근 따라하려고 하는데.. 한 강 한강 막히고 있습니다.. 하둡과 주키퍼 명령 사용해보기 강의보며 실습중인데,명령어가 먹히지 않습니다.. 연결이 안되는 에러로 보여서 클라우데라 접속하려고 했더니 클라우데라도 접속이 안됩니다. 빅데이터 클러스터 구성 4 강의 까지는 다 따라한 상태입니다.  클라우데라 접속해서 하둡과 주키퍼 설치까지 완료하였고 일주일? 지난 후 다시 접속해서 그 이후 과정 따라하려고 하니 접속에러 & 연결에러가 뜨고 있습니다............ ㅠㅠ 막힘없이 쭉쭉 나가고 싶은데 ,, 대체 무슨문제일까요 ? 저 같은 에러를 경험하신 분이 있을까 싶어 이전 질문글을 살펴봤는데 파일럿 PC의 용량이 존재해야 한다고 하여 정리도 하고, 실행했습니다.많이 사용하긴 했지만 212GB가 남아있는 상황입니다.. 실습 쭉 따라하고 싶습니다..빅디님.....ㅠ_ㅠ!! ++로그 확인이상 없음.(참고로 모바텀을 사용하고 있어서 파일질라는 사용안하고 모바텀으로 바로 Sample.txt -> /home/bigdata 로 올렸습니다. 파일 잘 올라온 것 확인했습니다.)  감사합니다.