fix(content): 오디오 스냅샷 일 배치 lock을 보강한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/content/recommendation/adapter/out/scheduler/AudioRecommendationSnapshotScheduler.kt

@@ -1,6 +1,9 @@
 package kr.co.vividnext.sodalive.v2.content.recommendation.adapter.out.scheduler
 
+import kr.co.vividnext.sodalive.v2.content.recommendation.application.AudioRecommendationSnapshotFallbackService
 import kr.co.vividnext.sodalive.v2.content.recommendation.application.AudioRecommendationSnapshotRefreshService
+import kr.co.vividnext.sodalive.v2.recommendation.domain.RecommendedSectionType
+import org.redisson.api.RLock
 import org.redisson.api.RedissonClient
 import org.springframework.scheduling.annotation.Scheduled
 import org.springframework.stereotype.Component
@@ -14,19 +17,43 @@ class AudioRecommendationSnapshotScheduler(
     @Scheduled(cron = "0 0 0 * * *", zone = "Asia/Seoul")
     fun refreshDailySnapshots() {
         val lock = redissonClient.getLock(LOCK_KEY)
+        val sectionLocks = mutableListOf<RLock>()
 
         try {
             if (lock.tryLock(0, -1, TimeUnit.SECONDS)) {
+                if (!tryLockSections(sectionLocks)) return
                 refreshService.refreshDailySnapshots()
             }
         } finally {
+            sectionLocks.asReversed().forEach { sectionLock ->
+                if (sectionLock.isHeldByCurrentThread) {
+                    sectionLock.unlock()
+                }
+            }
             if (lock.isHeldByCurrentThread) {
                 lock.unlock()
             }
         }
     }
 
+    private fun tryLockSections(acquiredLocks: MutableList<RLock>): Boolean {
+        return AUDIO_SECTION_TYPES.all { sectionType ->
+            val lock = redissonClient.getLock(AudioRecommendationSnapshotFallbackService.lockKey(sectionType))
+            if (!lock.tryLock(0, -1, TimeUnit.MILLISECONDS)) return false
+            acquiredLocks.add(lock)
+            true
+        }
+    }
+
     companion object {
         const val LOCK_KEY = "lock:audio-recommendation-snapshot-refresh"
+        private val AUDIO_SECTION_TYPES = listOf(
+            RecommendedSectionType.NEW_AND_HOT_AUDIO_SAFE,
+            RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL,
+            RecommendedSectionType.MOST_COMMENTED_AUDIO_SAFE,
+            RecommendedSectionType.MOST_COMMENTED_AUDIO_ALL,
+            RecommendedSectionType.RECOMMENDED_AUDIO_SAFE,
+            RecommendedSectionType.RECOMMENDED_AUDIO_ALL
+        )
     }
 }