Fix: 배포 서버로 적용 변경

Author: dlwls423

src/main/java/devkor/com/teamcback/infra/cloudwatch/MetricsService.java

@@ -21,7 +21,7 @@ public class MetricsService {
     @Value("${metrics.environment}")
     private String environment;
 
-    private final String TARGET = "dev"; // 테스트 후 prod로 변경
+    private final String TARGET = "prod";
 
     private final CloudWatchAsyncClient cloudWatchAsyncClient;
     private final Map<String, AtomicInteger> uriCountMap = new ConcurrentHashMap<>();
@@ -35,6 +35,7 @@ public void recordApiRequest(String uri) {
     @Scheduled(fixedRate = 60_000)
     public void sendMetricsToCloudWatch() {
         if (TARGET.equalsIgnoreCase(environment)) {
+            if(uriCountMap.isEmpty()) return;
             List<MetricDatum> metricDataList = uriCountMap.entrySet().stream()
                     .map(entry -> {
                         String uri = entry.getKey();