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From Andy LoPresto <>
Subject Re: Use a different runtime
Date Fri, 12 Jul 2019 22:27:17 GMT

The short answer is “this is not as simple as replacing one class”. The longer answer
is that you may be interested in the work by Mark Payne and Sam Hjemfelt to provide an additional
runtime in NiFi (referred to as stateless NiFi [1]). Hope this helps. 

[1] <>

Andy LoPresto
PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4  BACE 3C6E F65B 2F7D EF69

> On Jul 12, 2019, at 12:12 PM, HWANG, MICHAEL (MICHAEL) <>
> Hello
> I want to use Nifi's UI and APIs (i.e. registry) but not use the Nifi scheduler, controller,
runtime.  I want to prototype hooking in my own scheduler, controller, runtime.  How involved
would this be?  Would it be more involved than replacing the class "org.apache.nifi.web.controller.ControllerFacade"
in the nifi-web-api sub-project with my own version?
> I like Nifi's concepts, defined resources, and UI user experience and unfortunately we
have legacy runtime elements like an orchestrator that must be continued to be used.  It's
part of my requirement.
> Any thoughts, guidance is most appreciated.
> Thanks again
> Mike

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