Hello, Sampth. > My interest lies in how to evaluate large number of notifications within a short time. > I thought moving alarms into the pipelines would be a good start. How about evaluate Synaps for your use case? It evaluates alarms in the storm topology(pipeline). Moving alarms into the pipelines would be big impact for CM. see http://spcs.github.io/synaps/artifacts/programspec.html#synaps-topology-description Thank you June Yi, Samsung SDS.