🚑 hotfix: redis 저장 에러

build.gradle

@@ -70,8 +70,6 @@ dependencies {
 	//firebase
 	implementation 'com.google.firebase:firebase-admin:9.2.0'
 
-	implementation 'org.redisson:redisson-spring-boot-starter:3.27.0'
-
 	//S3
 	implementation group: 'io.awspring.cloud', name: 'spring-cloud-starter-aws', version: '2.4.4'
 	implementation group: 'io.awspring.cloud', name: 'spring-cloud-starter-aws-secrets-manager-config', version: '2.4.4'

src/main/java/com/capstone/BnagFer/domain/accounts/entity/Profile.java

@@ -27,7 +27,7 @@ public class Profile extends BaseEntity {
     @Column(name = "profile_id")
     private Long id;
 
-    @Column(name = "nickname", nullable = false, length = 20)
+    @Column(name = "nickname", nullable = false, unique = true, length = 20)
     private String nickname; // 닉네임
 
     @Column(name = "profile_image_url")

src/main/java/com/capstone/BnagFer/domain/accounts/service/account/AccountsService.java

@@ -13,6 +13,8 @@
 import io.jsonwebtoken.ExpiredJwtException;
 import jakarta.servlet.http.HttpServletRequest;
 import lombok.RequiredArgsConstructor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
@@ -32,6 +34,7 @@ public class AccountsService {
     private final JwtProvider jwtProvider;
     private final RedisUtil redisUtil;
     private final AccountsCommonService accountsCommonService;
+    private static final Logger logger = LoggerFactory.getLogger(AccountsService.class);
 
     public UserLoginResponseDto login(UserLoginRequestDto requestDto) {
 

src/main/java/com/capstone/BnagFer/domain/notification/service/FcmNotificationService.java

@@ -13,13 +13,10 @@
 import com.google.firebase.messaging.Message;
 import com.google.firebase.messaging.Notification;
 import lombok.RequiredArgsConstructor;
-import org.redisson.api.RLock;
-import org.redisson.api.RedissonClient;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Propagation;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.util.concurrent.TimeUnit;
 
 @RequiredArgsConstructor
 @Service
@@ -29,36 +26,12 @@ public class FcmNotificationService {
     private final UserJpaRepository userJpaRepository;
     private final RedisUtil redisUtil;
     private final FcmNotificationRepository fcmNotificationRepository;
-    private final RedissonClient redissonClient;
-
-    private static final String LOCK_PREFIX = "fcm_notification:";
 
     // 항상 새로운 트랜잭션에서 실행
     @Transactional(propagation = Propagation.REQUIRES_NEW)
     public FcmNotification saveNotification(FcmNotificationRequestDto requestDto, User user) {
-        String lockKey = LOCK_PREFIX + user.getId();
-        RLock lock = redissonClient.getLock(lockKey);
-
-        try {
-            // 5초 동안 락 획득 시도, 획득 성공 시 최대 10초 동안 락 유지 => 데드락 방지
-
-            if (lock.tryLock(5, 10, TimeUnit.SECONDS)) {
-                try {
-                    FcmNotification fcmNotification = requestDto.toEntity(user);
-                    return fcmNotificationRepository.save(fcmNotification);
-                } finally {
-                    // 작업 완료 후 즉시 락 해제 시도
-                    if (lock.isHeldByCurrentThread()) {
-                        lock.unlock();
-                    }
-                }
-            } else {
-                throw new FcmNotificationExceptionHandler(ErrorCode.LOCK_ACQUISITION_FAILED);
-            }
-        } catch (InterruptedException e) {
-            Thread.currentThread().interrupt();
-            throw new FcmNotificationExceptionHandler(ErrorCode.NOTIFICATION_SAVE_FAILED);
-        }
+        FcmNotification fcmNotification = requestDto.toEntity(user);
+        return fcmNotificationRepository.save(fcmNotification);
     }
 
     // 트랜잭션 없이 실행

src/main/java/com/capstone/BnagFer/global/config/RedisConfig.java

@@ -1,8 +1,5 @@
 package com.capstone.BnagFer.global.config;
 
-import org.redisson.Redisson;
-import org.redisson.api.RedissonClient;
-import org.redisson.config.Config;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -34,10 +31,4 @@ public RedisTemplate<String, Object> redisTemplate() {
         return redisTemplate;
     }
 
-    @Bean
-    public RedissonClient redissonClient() {
-        Config config = new Config();
-        config.useSingleServer().setAddress("redis://" + redisHost + ":" + redisPort);
-        return Redisson.create(config);
-    }
 }

src/main/java/com/capstone/BnagFer/global/util/RedisUtil.java

@@ -9,6 +9,7 @@
 @RequiredArgsConstructor
 public class RedisUtil {
     private final RedisTemplate<String, Object> redisTemplate;
+    private static final String FCM_TOKEN_PREFIX = "fcm:token:";
     private static final long ONE_WEEK_IN_SECONDS = 7 * 24 * 60 * 60; // 일주일을 초로 표현
 
     public void save(String key, Object val, Long time, TimeUnit timeUnit) {
@@ -68,12 +69,13 @@ public boolean delete(String key) {
     }
 
     public void saveFCMToken(String userEmail, String fcmToken) {
-        redisTemplate.opsForValue().set(userEmail, fcmToken);
-        redisTemplate.expire(userEmail, 30, TimeUnit.DAYS);
+        String key = FCM_TOKEN_PREFIX + userEmail;
+        redisTemplate.opsForValue().set(key, fcmToken, 30, TimeUnit.DAYS);
     }
 
     public String getFCMToken(String userEmail) {
-        Object tokenObj = redisTemplate.opsForValue().get(userEmail);
+        String key = FCM_TOKEN_PREFIX + userEmail;
+        Object tokenObj = redisTemplate.opsForValue().get(key);
         if (tokenObj != null) {
             return (String) tokenObj;
         } else {
@@ -82,6 +84,7 @@ public String getFCMToken(String userEmail) {
     }
 
     public void removeFCMToken(String userEmail) {
-        redisTemplate.delete(userEmail);
+        String key = FCM_TOKEN_PREFIX + userEmail;
+        redisTemplate.delete(key);
     }
 }