librato/librato-services — pull request #20 by opsgenie (2012-11-27 22:16:54+00:00)
Title: Update services/opsgenie.rb

OpsGenie service is called for every metric value that is over/under threshold. To prevent alert storms, I've set the alias field to the metric name to create only one alert per metric. (alias field is a unique identifier in OpsGenie).