인프런 커뮤니티 질문&답변
작성한 질문수
Retry 애노테이션으로 재시도 실행결과가 좀 이상합니다.
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본문에는 예외가 발생 시 Retry 애노테이션을 확인해서
request를 재시도 하는것으로 나와있는데
막상 실행 시켜보면 예외가 발생하지 않아도
Retry 프록시가 실행되는거 같아서요
먼가 잘못이해하고 있는걸까요??
실행결과 로그는 아래와 같습니다.
2022-02-19 12:49:47.587 INFO 18976 --- [ main] hello.aop.exam.ExamTest : Started ExamTest in 3.008 seconds (JVM running for 5.288)
2022-02-19 12:49:48.363 INFO 18976 --- [ main] hello.aop.exam.ExamTest : client request i = 0
2022-02-19 12:49:48.387 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] void hello.aop.exam.ExamService.request(String) args=[data0]
2022-02-19 12:49:48.416 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] String hello.aop.exam.ExamRepository.save(String) args=[data0]
2022-02-19 12:49:48.417 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] String hello.aop.exam.ExamRepository.save(String) retry=@hello.aop.exam.annotation.Retry(value=4)
2022-02-19 12:49:48.417 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] try count=1/4
2022-02-19 12:49:48.428 INFO 18976 --- [ main] hello.aop.exam.ExamTest : client request i = 1
2022-02-19 12:49:48.429 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] void hello.aop.exam.ExamService.request(String) args=[data1]
2022-02-19 12:49:48.429 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] String hello.aop.exam.ExamRepository.save(String) args=[data1]
2022-02-19 12:49:48.430 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] String hello.aop.exam.ExamRepository.save(String) retry=@hello.aop.exam.annotation.Retry(value=4)
2022-02-19 12:49:48.430 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] try count=1/4
2022-02-19 12:49:48.430 INFO 18976 --- [ main] hello.aop.exam.ExamTest : client request i = 2
2022-02-19 12:49:48.430 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] void hello.aop.exam.ExamService.request(String) args=[data2]
2022-02-19 12:49:48.430 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] String hello.aop.exam.ExamRepository.save(String) args=[data2]
2022-02-19 12:49:48.432 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] String hello.aop.exam.ExamRepository.save(String) retry=@hello.aop.exam.annotation.Retry(value=4)
2022-02-19 12:49:48.432 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] try count=1/4
2022-02-19 12:49:48.432 INFO 18976 --- [ main] hello.aop.exam.ExamTest : client request i = 3
2022-02-19 12:49:48.432 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] void hello.aop.exam.ExamService.request(String) args=[data3]
2022-02-19 12:49:48.432 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] String hello.aop.exam.ExamRepository.save(String) args=[data3]
2022-02-19 12:49:48.432 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] String hello.aop.exam.ExamRepository.save(String) retry=@hello.aop.exam.annotation.Retry(value=4)
2022-02-19 12:49:48.433 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] try count=1/4
2022-02-19 12:49:48.433 INFO 18976 --- [ main] hello.aop.exam.ExamTest : client request i = 4
2022-02-19 12:49:48.433 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] void hello.aop.exam.ExamService.request(String) args=[data4]
2022-02-19 12:49:48.433 INFO 18976 --- [ main] hello.aop.exam.aop.TraceAspect : [trace] String hello.aop.exam.ExamRepository.save(String) args=[data4]
2022-02-19 12:49:48.433 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] String hello.aop.exam.ExamRepository.save(String) retry=@hello.aop.exam.annotation.Retry(value=4)
2022-02-19 12:49:48.433 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] try count=1/4
2022-02-19 12:49:48.433 INFO 18976 --- [ main] hello.aop.exam.aop.RetryAspect : [retry] try count=2/4
퀴즈
Spring AOP는 애플리케이션의 핵심 비즈니스 로직 외에 여러 모듈에 걸쳐 반복적으로 나타나는 부가 기능(cross-cutting concerns)을 효과적으로 처리하도록 돕는데요, 로깅(Logging)이나 재시도(Retry)는 어떤 유형의 관심사에 해당할까요?
핵심 비즈니스 로직
데이터 모델
횡단 관심사 (Cross-cutting Concerns)
사용자 인터페이스
감사합니다!