试图监控气流上的活跃工作人员并使用了以下出口商 但在暴露的指标中总是将 celery_workers 设为 0。这是指标数据：
python_info{implementation="CPython",major="2",minor="7",patchlevel="15+",version="2.7.15+"} 1.0
# HELP celery_workers Number of alive workers
# TYPE celery_workers gauge
celery_workers 0.0
# HELP celery_tasks Number of tasks per state
# TYPE celery_tasks gauge
celery_tasks{state="STARTED"} 0.0
celery_tasks{state="SUCCESS"} 6.0
celery_tasks{state="RECEIVED"} 0.0
Can anyone suggest what I am missing?. Thanks in advance