我使用由3个集群网关工作者组成的API Manger 当网关工作人员收到用户的API请求时，所有网关都会显示如下警告消息。它似乎来自错误的配置..
每个回复都会有所帮助。
2016-11-28 21:11:46,596 [-] [HTTPS-Listener I/O dispatcher-4] WARN AccessConfiguration Error loading properties from file: access-log.properties
2016-11-28 21:11:47,303 [-] [PassThroughMessageProcessor-6] WARN APIThrottleHandler Unable to load throttle context
2016-11-28 21:11:47,303 [-] [PassThroughMessageProcessor-15] WARN APIThrottleHandler Unable to load throttle context
2016-11-28 21:11:47,341 [-] [PassThroughMessageProcessor-13] WARN APIThrottleHandler Unable to load throttle context
2016-11-28 21:11:47,356 [-] [PassThroughMessageProcessor-16] WARN APIThrottleHandler Unable to load throttle context
2016-11-28 21:11:47,363 [-] [PassThroughMessageProcessor-1] WARN APIThrottleHandler Unable to load throttle context