fix bug

server/worker.go

@@ -30,10 +30,11 @@ type Worker struct {
 
 func PopWorker(rdb *redis.Client) (Worker, error) {
 	for i := 0; i < maxPriority; i++ {
+		for {
 			elem, err := rdb.LPop(context.Background(), config.WORKER_QUEUE_PREFIX+strconv.Itoa(i)).Result()
 			if err != nil {
 				log.WithError(err).Error("lPop worker failed")
-			continue
+				break
 			}
 			log.WithField("elem", elem).Debug("lPop worker")
 			managerList, err := rdb.SMembers(context.Background(), config.WORKER_STATUS_PREFIX+elem).Result()
@@ -50,6 +51,7 @@ func PopWorker(rdb *redis.Client) (Worker, error) {
 				priority: i,
 				managers: managerList,
 			}, nil
+		}
 
 	}
 	return Worker{}, ErrNoWorker