catch statsd metric_send() exception
catch statsd metric_send() exception

0312birdzhang/alerta,guardian/alerta,skob/alerta,guardian/alerta,mrkeng/alerta,guardian/alerta,mrkeng/alerta,mrkeng/alerta,0312birdzhang/alerta,0312birdzhang/alerta,guardian/alerta,skob/alerta,skob/alerta,skob/alerta,mrkeng/alerta