The following table describes the main components of Apache NiFi:
| Component name | Description |
| FlowFile | Data packet running through the system |
| FlowFile processor | Performs the actual work of data routing, transformation, and data movement |
| Connetion | Actual data linkage between processors |
| Flow controller | Facilitates the exchange of FlowFiles between the processors |
| Process group | Specific group of data inputs and data output processors |
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