Knowledge Base: What metrics can my application send?
Anything you can think of! The metrics are time-based so anything that you might want to track over time would make a good metric. It can be something technical, like "amount of memory in use", or something business-y, like "number of sales". At the core, metrics are just a name and value (which must be a number).
Metrics can be grouped together into a "Recipe". For instance, if you are writing code to provide metrics for the Apache Tomcat servlet container, your recipe might be named "Tomcat" with three metrics in that recipe: "Request Count", "Total Response Time" and "Errors". In the Dash UI, this would display as a single box with three sparkline graphs.