diff --git a/src/main/kotlin/com/hero/alignlab/ws/handler/ReactiveConcurrentUserWebSocketHandler.kt b/src/main/kotlin/com/hero/alignlab/ws/handler/ReactiveConcurrentUserWebSocketHandler.kt
index 487efc4..97a00b7 100644
--- a/src/main/kotlin/com/hero/alignlab/ws/handler/ReactiveConcurrentUserWebSocketHandler.kt
+++ b/src/main/kotlin/com/hero/alignlab/ws/handler/ReactiveConcurrentUserWebSocketHandler.kt
@@ -40,6 +40,8 @@ class ReactiveConcurrentUserWebSocketHandler(
     private val concurrentUserByMap: ConcurrentMap<Long, ConcurrentMap<Long, WebSocketSession>> = ConcurrentHashMap()
 
     override fun handle(session: WebSocketSession): Mono<Void> {
+        println(">> 접속함")
+
         val groupId = session.handshakeInfo.uri.path
             .split("/")
             .lastOrNull { it.matches(Regex("\\d+")) }
@@ -57,6 +59,8 @@ class ReactiveConcurrentUserWebSocketHandler(
 
         val user = authFacade.resolveAuthUser(authUserToken)
 
+        println("concurrent user : ${user.uid}")
+
         val groupUsers = groupUserService.findAllByUidSync(user.uid)
 
         groupUsers.forEach { groupUser ->
@@ -67,6 +71,7 @@ class ReactiveConcurrentUserWebSocketHandler(
             concurrentUserByMap[groupUser.groupId] = cuser
         }
 
+
         logger.info { "concurrent user ${user.uid}" }
 
         concurrentUserByMap.forEach { (groupId, uidBySession) ->