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https://issues.apache.org/jira/browse/NIFI-4863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358936#comment-16358936
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ASF GitHub Bot commented on NIFI-4863:
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Github user asfgit closed the pull request at:
https://github.com/apache/nifi/pull/2462
> If changing version of flow and new flow has no connection to RPG Port, can
> get error saying unable to start components
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-4863
> URL: https://issues.apache.org/jira/browse/NIFI-4863
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.5.0
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Fix For: 1.6.0
>
>
> When we have a Remote Process Group with multiple ports, we push to the flow
> registry the ports that we have connections for. I have a connection to Port
> A and save that to the flow registry, then create a connection to Port B. I
> have RPG transmitting data. Then I revert local changes. This properly
> reverts the flow but fails to restart components. This is because it is
> attempting to start Port B, and there are no connections for that Port.
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