Over the past few months, numerous request have been made to the Ceilometer project to extend its scope from just metering to more monitoring or alerting. This causes quite a few challenges but as we are instrumenting more and more openstack component to extract data from them, it makes sense to think on how we could extend our capabilities over time. We'll review 2 proposal: adding cloudwatch and alerting functionalities.
More details at http://wiki.openstack.org/EfficientMetering/GrizzlySummit/BeyondMetering