Github user joewitt commented on the issue:
https://github.com/apache/nifi/pull/458
The name isn't great but not sure what would be better. It is indeed a
debugger for the framework and less so for a flow. It is perhaps good to call
it 'CreateChaos'. That said i personally think this is a great idea to have in
the build and part of the standard processors. It would only be used by power
users or curious types. And for everyone else it is a noop. But it could make
it easier for us to demonstrate the evil effects of constant exceptions in a
flow and do interesting regression checks on various infrastructures. There is
admittedly probably a better place for this but with the upcoming nar registry
work we can tackle that then.
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