add ReloadFluentd monitor
add ReloadFluentd monitor

发送了SIGHUP，但是fluentd没有成功的重启worker进程
AliyunContainerService/fluentd-pilot,AliyunContainerService/fluentd-pilot,AliyunContainerService/fluentd-pilot,bamboox/fluentd-pilot,bamboox/fluentd-pilot,AliyunContainerService/fluentd-pilot,bamboox/fluentd-pilot,bamboox/fluentd-pilot