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https://issues.apache.org/jira/browse/NIFI-5255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16496657#comment-16496657
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Pierre Villard commented on NIFI-5255:
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Yeah that's what I'm doing at the moment (see screenshot). And it's OK for now.
Just considering the case where I could expect to have tens of sources and more
process groups to feed.
!Screen Shot 2018-05-31 at 4.49.35 PM.png|width=631,height=425!
> UI - ability to connect multiple output ports to one input port
> ---------------------------------------------------------------
>
> Key: NIFI-5255
> URL: https://issues.apache.org/jira/browse/NIFI-5255
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core UI
> Reporter: Pierre Villard
> Priority: Major
> Attachments: Screen Shot 2018-05-31 at 4.49.35 PM.png
>
>
> At the moment, when connecting two process groups, it's only possible to have
> 1-to-1 relationships to connect one output port to one input port.
> Here is my use case: I've one common process group collecting logs from
> multiple sources (A, B, C, D) and two process groups to process the logs. One
> of the process group should only process logs from A, B, C while the other
> should process logs from B, C, D.
> In the common process group, I've one output port per source (A, B, C, D). In
> each "processing" process group, I've one single input port (and I'll
> re-route if necessary based on the source). At the moment, I have to drag 6
> relationships to connect the common process group to the two others. I'd like
> to only draw 2 connections. When dragging the connection, I should be able to
> select multiple output ports from the common PG for one single destination.
> That would make the workflow easier to understand, and this approach much
> more scalable.
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