Ferenc Gerlits created MINIFICPP-2498:
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             Summary: Funnels should be usable as terminators
                 Key: MINIFICPP-2498
                 URL: https://issues.apache.org/jira/browse/MINIFICPP-2498
             Project: Apache NiFi MiNiFi C++
          Issue Type: Improvement
            Reporter: Ferenc Gerlits


In NiFi, Funnels have two use cases: 1. to group multiple output connections 
into a single input connection, and 2. to function as a terminal node, as an 
alternative to marking output relationships auto-connected.

In MiNiFi, we only support use case (1) at the moment. If a funnel is added 
without outgoing connections, then every flow file routed to it will be rolled 
back and penalized repeatedly forever. The user has no way to fix this, because 
it is not possible to mark the (implicit) Success relationship of a Funnel 
auto-terminated in configure.yml.

We should support use case (2), as well, by implicitly treating the Success 
relationship of all Funnels auto-terminated. (If there is an output 
relationship, that will take precedence.)



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