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Overview of Controller Services In Apache NiFi, Controller Services are not the same as the controllers found in MVC patterns. They are standalone configurable services that operate at a similar level to processors, but instead of processing data directly, they provide shared resources or capabilities that processors can leverage. For example, ...

Custom Processor Development Workflow Custom processor development in Apache NiFi follows a structured workflow: code implementation following NiFi conventions → packaging as NAR file → deployment and usage. Implementation Following NiFi Conventions NiFi provides extensible processor interfaces and abstract classes. Developers implement custom ...