Yes, NiFi is supported on both CDH 5 and CDH 6. Cloudera has a number of streaming products that are collectively referred to as Cloudera DataFlow. Cloudera DataFlow covers:
- Edge Management
- Cloudera Flow Management
- Stream Processing
- Streaming Analytics
Apache Nifi and Nifi Registry are covered under Cloudera Flow Management (CFM).
You can find the Cloudera Flow Management documentation here:
This documentation includes the system requirements and installation process to install CFM which would give you Apache Nifi on your environment.