chore: 정리된 의존성 재배치 및 Resilience4j 설정 개선 (Retry, CircuitBreaker 세부 조정 포함)

Author: yeonjiyeon

apps/commerce-api/build.gradle.kts

@@ -11,30 +11,25 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-actuator")
     implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:${project.properties["springDocOpenApiVersion"]}")
 
-    // querydsl
-    annotationProcessor("com.querydsl:querydsl-apt::jakarta")
-    annotationProcessor("jakarta.persistence:jakarta.persistence-api")
-    annotationProcessor("jakarta.annotation:jakarta.annotation-api")
-
-    // test-fixtures
-    testImplementation(testFixtures(project(":modules:jpa")))
-    testImplementation(testFixtures(project(":modules:redis")))
-
     // Resilience4j (Spring Boot 3.x 기준)
-    implementation("io.github.resilience4j:resilience4j-spring-boot3:2.2.0")
+    implementation("io.github.resilience4j:resilience4j-spring-boot3")
 
     // AOP
     implementation("org.springframework.boot:spring-boot-starter-aop")
 
-    // actuator
-    implementation("org.springframework.boot:spring-boot-starter-actuator")
-
     //Micrometer Prometheus
     implementation("io.micrometer:micrometer-registry-prometheus")
 
     //Spring Cloud OpenFeign
     implementation("org.springframework.cloud:spring-cloud-starter-openfeign")
 
-    //Spring Cloud CircuitBreaker
-    implementation("org.springframework.cloud:spring-cloud-starter-circuitbreaker-resilience4j")
+
+    // querydsl
+    annotationProcessor("com.querydsl:querydsl-apt::jakarta")
+    annotationProcessor("jakarta.persistence:jakarta.persistence-api")
+    annotationProcessor("jakarta.annotation:jakarta.annotation-api")
+
+    // test-fixtures
+    testImplementation(testFixtures(project(":modules:jpa")))
+    testImplementation(testFixtures(project(":modules:redis")))
 }

apps/commerce-api/src/main/resources/application.yml

@@ -23,29 +23,44 @@ spring:
       - redis.yml
       - logging.yml
       - monitoring.yml
+  cloud:
+    openfeign:
+      client:
+        config:
+          default:
+            connectTimeout: 1000
+            readTimeout: 1000
 
 resilience4j:
-  # Retry
   retry:
     instances:
-      pgRetry:
-        max-attempts: 3
-        wait-duration: 1000ms
+      pg-client:
+        max-attempts: 2 # 1번만 재시도 (총 2회)
+        wait-duration: 500ms
         retry-exceptions:
           - java.io.IOException
-          - java.util.concurrent.TimeoutException
-          - java.net.ConnectException
+          - java.net.SocketTimeoutException
+          - feign.RetryableException
+        # 비즈니스 로직 에러(400 등)는 재시도 하지 않음
+        ignore-exceptions:
+          - com.loopers.support.error.CoreException
+          - feign.FeignException.BadRequest
+          - feign.FeignException.NotFound
 
-  # CircuitBreaker
   circuitbreaker:
     configs:
       default:
         register-health-indicator: true
     instances:
-      simpleCircuitBreakerConfig:
+      pg-client:
         sliding-window-type: COUNT_BASED
         sliding-window-size: 10
-        failure-rate-threshold: 50
+        minimum-number-of-calls: 5
+        # 500ms 이상 걸리면 '슬로우 콜'로 간주 (빠른 차단)
+        slow-call-duration-threshold: 500ms
+        slow-call-rate-threshold: 50
+
+        failure-rate-threshold: 40
         wait-duration-in-open-state: 10s
         permitted-number-of-calls-in-half-open-state: 3
 

apps/pg-simulator/src/main/resources/application.yml

@@ -23,13 +23,6 @@ spring:
       - redis.yml
       - logging.yml
       - monitoring.yml
-  cloud:
-    openfeign:
-      client:
-        config:
-          default:
-            connectTimeout: 1000
-            readTimeout: 1000
 
 datasource:
   mysql-jpa:

settings.gradle.kts

@@ -3,13 +3,15 @@ rootProject.name = "loopers-java-spring-template"
 include(
     ":apps:commerce-api",
     ":apps:commerce-streamer",
+    ":apps:pg-simulator",
     ":modules:jpa",
     ":modules:redis",
     ":modules:kafka",
+
     ":supports:jackson",
     ":supports:logging",
     ":supports:monitoring",
-    ":apps:pg-simulator",
+
 )
 
 // configurations