diff --git a/core/core-api/src/main/java/cmc/mellyserver/common/aspect/lock/OptimisticLockAspect.java b/core/core-api/src/main/java/cmc/mellyserver/common/aspect/lock/OptimisticLockAspect.java
index 2f53a9d1..a16c8729 100644
--- a/core/core-api/src/main/java/cmc/mellyserver/common/aspect/lock/OptimisticLockAspect.java
+++ b/core/core-api/src/main/java/cmc/mellyserver/common/aspect/lock/OptimisticLockAspect.java
@@ -30,7 +30,7 @@
 @Slf4j
 @Aspect
 @Component
-@Order(Ordered.LOWEST_PRECEDENCE - 2) // @Transaction보다 먼저 AOP가 호출
+@Order(Ordered.LOWEST_PRECEDENCE - 2)
 @RequiredArgsConstructor
 public class OptimisticLockAspect {
 
diff --git a/core/core-api/src/main/java/cmc/mellyserver/controller/group/GroupController.java b/core/core-api/src/main/java/cmc/mellyserver/controller/group/GroupController.java
index e093f63d..20fb7524 100644
--- a/core/core-api/src/main/java/cmc/mellyserver/controller/group/GroupController.java
+++ b/core/core-api/src/main/java/cmc/mellyserver/controller/group/GroupController.java
@@ -57,7 +57,8 @@ public ResponseEntity<ApiResponse<Void>> updateGroup(@PathVariable Long groupId,
     public ResponseEntity<ApiResponse<Void>> joinGroup(@CurrentUser LoginUser loginUser,
         @PathVariable(name = "groupId") Long groupId) {
 
-        groupService.joinGroup(loginUser.getId(), groupId);
+        int i = groupService.joinGroup(loginUser.getId(), groupId);
+        System.out.println(i);
         return ApiResponse.success(SuccessCode.INSERT_SUCCESS);
     }
 
diff --git a/core/core-api/src/main/java/cmc/mellyserver/controller/health/HealthCheckController.java b/core/core-api/src/main/java/cmc/mellyserver/controller/health/HealthCheckController.java
new file mode 100644
index 00000000..e1f41c58
--- /dev/null
+++ b/core/core-api/src/main/java/cmc/mellyserver/controller/health/HealthCheckController.java
@@ -0,0 +1,14 @@
+package cmc.mellyserver.controller.health;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class HealthCheckController {
+
+    @GetMapping("/api/health")
+    public ResponseEntity<String> healthCheck() {
+        return ResponseEntity.ok("health up");
+    }
+}
diff --git a/core/core-api/src/main/java/cmc/mellyserver/domain/comment/CommentLikeService.java b/core/core-api/src/main/java/cmc/mellyserver/domain/comment/CommentLikeService.java
index 201f40a0..4f0e8ef2 100644
--- a/core/core-api/src/main/java/cmc/mellyserver/domain/comment/CommentLikeService.java
+++ b/core/core-api/src/main/java/cmc/mellyserver/domain/comment/CommentLikeService.java
@@ -21,19 +21,19 @@ public class CommentLikeService {
 
     private final CommentReader commentReader;
 
-    @DistributedLock(key = "#commentId") // 대부분은 분산락으로 처리
-    @OptimisticLock(retryCount = 3, waitTime = 1000L) // 만약의 경우를 대비해서 낙관적락도 걸기
+    @OptimisticLock
+    @DistributedLock(key = "#commentId")
     @Transactional
     public void saveCommentLike(final Long userId, final Long commentId) {
 
-        Comment comment = commentReader.findByIdWithLock(commentId); // 댓글 조회 (비관적 락)
-        commentLikeValidator.validateDuplicatedLike(commentId, userId); // commentLike 테이블 조회 -> 자신이 좋아요를 눌렀는지 기록 필요
+        Comment comment = commentReader.findByIdWithLock(commentId);
+        commentLikeValidator.validateDuplicatedLike(commentId, userId);
         comment.addLike();
         commentLikeWriter.save(userId, comment);
     }
 
-    @DistributedLock(key = "#commentId") // 대부분은 분산락으로 처리
-    @OptimisticLock(retryCount = 3, waitTime = 1000L) // 만약의 경우를 대비해서 낙관적락도 걸기
+    @OptimisticLock
+    @DistributedLock(key = "#commentId")
     @Transactional
     public void deleteCommentLike(final Long userId, final Long commentId) {
 
diff --git a/core/core-api/src/main/java/cmc/mellyserver/domain/group/GroupService.java b/core/core-api/src/main/java/cmc/mellyserver/domain/group/GroupService.java
index 3a597fcd..4e0da2fd 100644
--- a/core/core-api/src/main/java/cmc/mellyserver/domain/group/GroupService.java
+++ b/core/core-api/src/main/java/cmc/mellyserver/domain/group/GroupService.java
@@ -68,12 +68,13 @@ public Long saveGroup(Long userId, CreateGroupRequestDto createGroupRequestDto)
     @OptimisticLock
     @CacheEvict(cacheNames = CacheNames.GROUP, key = "#groupId")
     @Transactional
-    public void joinGroup(final Long userId, final Long groupId) {
+    public int joinGroup(final Long userId, final Long groupId) {
 
         UserGroup userGroup = groupReader.readWithLock(groupId);
         groupValidator.isMaximumGroupMember(groupId);
         groupValidator.isDuplicatedJoin(userId, userGroup.getId());
         groupAndUserWriter.save(GroupAndUser.of(userId, userGroup));
+        return 1;
     }
 
     @CacheEvict(cacheNames = CacheNames.GROUP, key = "#updateGroupRequestDto.groupId")
diff --git a/storage/db-redis/src/main/java/cmc/mellyserver/dbredis/config/RedisConfig.java b/storage/db-redis/src/main/java/cmc/mellyserver/dbredis/config/RedisConfig.java
index 345ec754..bf3b0f1e 100644
--- a/storage/db-redis/src/main/java/cmc/mellyserver/dbredis/config/RedisConfig.java
+++ b/storage/db-redis/src/main/java/cmc/mellyserver/dbredis/config/RedisConfig.java
@@ -39,8 +39,7 @@ public RedissonClient redissonClient() {
         Config config = new Config();
         config.useSingleServer()
             .setAddress(REDISSON_HOST_PREFIX + host + ":" + port)
-            .setRetryAttempts(2)
-            .setRetryInterval(500);
+            .setConnectTimeout(3000);
 
         return Redisson.create(config);
     }