diff --git a/src/main/java/org/tuna/zoopzoop/backend/domain/auth/handler/OAuth2SuccessHandler.java b/src/main/java/org/tuna/zoopzoop/backend/domain/auth/handler/OAuth2SuccessHandler.java
index 7b5e15cc..2e076056 100644
--- a/src/main/java/org/tuna/zoopzoop/backend/domain/auth/handler/OAuth2SuccessHandler.java
+++ b/src/main/java/org/tuna/zoopzoop/backend/domain/auth/handler/OAuth2SuccessHandler.java
@@ -92,6 +92,7 @@ public void onAuthenticationSuccess(HttpServletRequest request, HttpServletRespo
             if ("extension".equals(source)) {
                 authResult.put(customState, accessToken, sessionId);
                 response.sendRedirect(redirect_domain + "/extension/success");
+                response.flushBuffer();
                 return;
             }
         }
diff --git a/src/main/java/org/tuna/zoopzoop/backend/domain/space/space/service/SpaceService.java b/src/main/java/org/tuna/zoopzoop/backend/domain/space/space/service/SpaceService.java
index 35d2658a..cd59a982 100644
--- a/src/main/java/org/tuna/zoopzoop/backend/domain/space/space/service/SpaceService.java
+++ b/src/main/java/org/tuna/zoopzoop/backend/domain/space/space/service/SpaceService.java
@@ -3,7 +3,6 @@
 import jakarta.persistence.NoResultException;
 import jakarta.validation.constraints.NotBlank;
 import lombok.RequiredArgsConstructor;
-import org.hibernate.service.spi.ServiceException;
 import org.hibernate.validator.constraints.Length;
 import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
@@ -99,6 +98,7 @@ public Space createSpace(@NotBlank @Length(max = 50) String name, String thumbna
      * @return 삭제된 스페이스 이름
      * @throws IllegalArgumentException 스페이스가 존재하지 않을 경우
      */
+
     @Transactional
     public String deleteSpace(Integer spaceId) {
         Space space = spaceRepository.findById(spaceId)
@@ -118,6 +118,7 @@ public String deleteSpace(Integer spaceId) {
      * @throws IllegalArgumentException 스페이스가 존재하지 않을 경우
      * @throws DuplicateSpaceNameException 새로운 스페이스 이름이 중복될 경우
      */
+
     @Transactional
     public Space updateSpaceName(Integer spaceId, @NotBlank @Length(max = 50) String name) {
         Space space = spaceRepository.findById(spaceId)
diff --git a/src/main/resources/application-dev.yml b/src/main/resources/application-dev.yml
index 3f542e0b..28f49010 100644
--- a/src/main/resources/application-dev.yml
+++ b/src/main/resources/application-dev.yml
@@ -10,6 +10,17 @@ spring:
       ddl-auto: create-drop
     show-sql: true
 
+  data: #RedisTemplate 등을 사용하기 위한 직접 연결용
+    redis:
+      host: localhost
+      port: 6379
+      timeout: 6000
+  cache: #Spring Cache를 사용하기 위한 Redis
+    type: redis
+    redis:
+      time-to-live: 300000
+      cache-null-values: false
+
 app:
   seed:
     enabled: true
diff --git a/src/main/resources/application-server.yml b/src/main/resources/application-server.yml
index dc165266..9fc45565 100644
--- a/src/main/resources/application-server.yml
+++ b/src/main/resources/application-server.yml
@@ -8,6 +8,18 @@ spring:
     hibernate:
       ddl-auto: update
 
+  data: #RedisTemplate 등을 사용하기 위한 직접 연결용
+    redis:
+      host: 127.0.0.1
+      port: 6379
+      timeout: 6000
+      password: zoopzoopRedisTest!
+  cache: #Spring Cache를 사용하기 위한 Redis
+    type: redis
+    redis:
+      time-to-live: 300000
+      cache-null-values: false
+
 management:
   endpoints:
     web:
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index c13af761..d60a9e48 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -35,17 +35,7 @@ spring:
         options:
           model: meta-llama/llama-4-scout-17b-16e-instruct
           temperature: 0
-  data: #RedisTemplate 등을 사용하기 위한 직접 연결용
-    redis:
-      host: localhost
-      port: 6379
-      timeout: 6000
-  cache: #Spring Cache를 사용하기 위한 Redis
-    type: redis
-    redis:
-      time-to-live: 300000
-      cache-null-values: false
-      key-prefix:
+
 
 springdoc:
   default-produces-media-type: application/json;charset=UTF-8