구성도

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일단 인스턴스 다 확인해보기..

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ㅋㅋ.. 노트북 터질라 하는뎁쇼?

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https://yozm.wishket.com/magazine/detail/2296/

https://swmobenz.tistory.com/36

2025-08-02T14:07:30.155+09:00  WARN 16912 --- [order-client] [io-19092-exec-1] c.s.eureka.order.GlobalExceptionHandler  : IllegalArgumentException: Null key returned for cache operation [Builder[public com.spring_cloud.eureka.order.domain.DTO.OrderResponseDTO com.spring_cloud.eureka.order.domain.order.OrderService.getOrder(java.lang.Long)] caches=[Order] | key='#orderId' | keyGenerator='' | cacheManager='' | cacheResolver='' | condition='' | unless='' | sync='false']. If you are using named parameters, ensure that the compiler uses the '-parameters' flag.