Developer Guide
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Reporting Tasks

So far, we have mentioned little about how to convey to the outside world how NiFi and its components are performing. Is the system able to keep up with the incoming data rate? How much more can the system handle? How much data is processed at the peak time of day versus the least busy time of day?

In order to answer these questions, and many more, NiFi provides a capability for reporting status, statistics, metrics, and monitoring information to external services by means of the ReportingTask interface. ReportingTasks are given access to a host of information to determine how the system is performing.