fix bug

server/workerstatu.go

@@ -135,17 +135,20 @@ func (wm *WorkerManager) UpdateWorkerActive(worker *Worker) {
 	}
 
 	old := worker.latestNmValue
-	if err := wm.activeWorker(worker); err != nil {
+	if newNm, err := wm.activeWorker(worker); err != nil {
 		return
-	}
+	} else {
+		if old != newNm {
 			wm.rdb.SRem(context.Background(), workerStatusKey(worker), old)
+		}
+	}
 }
 
-func (wm *WorkerManager) activeWorker(worker *Worker) error {
+func (wm *WorkerManager) activeWorker(worker *Worker) (string, error) {
 	split := "#"
 	v := fmt.Sprintf("%s%s%d", config.GetConfig().PublicEndpoint(), split, time.Now().Unix())
 	worker.latestNmValue = v
-	return wm.rdb.SAdd(context.Background(), workerStatusKey(worker), v).Err()
+	return v, wm.rdb.SAdd(context.Background(), workerStatusKey(worker), v).Err()
 }
 
 func (wm *WorkerManager) parseWorkerNmValue(nmValue string) (string, int64) {