de-duplicate based on environment, resource, event and severity
de-duplicate based on environment, resource, event and severity

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