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https://issues.apache.org/jira/browse/NIFI-4526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16266968#comment-16266968
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ASF subversion and git services commented on NIFI-4526:
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Commit 9766558cab563a89e89e113082fc0bd2fabb1907 in nifi's branch
refs/heads/master from [~markap14]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=9766558 ]
NIFI-4526: Allow Target URI's of Remote Process Groups to be changed. This
closes #2298
> The REST API and NiFi UI should allow the target URL for a remote process
> group to be edited
> --------------------------------------------------------------------------------------------
>
> Key: NIFI-4526
> URL: https://issues.apache.org/jira/browse/NIFI-4526
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework, Core UI, Flow Versioning
> Reporter: Joseph Witt
> Assignee: Mark Payne
> Priority: Critical
> Fix For: 1.5.0
>
>
> Today remote process groups (RPG) once established cannot have the target URL
> edited. If a user wants to change the URL they have to add a new RPG for the
> new target and change the relationships/connections to point to it. Then
> they can remove the old one.
> That process ensures that there is explicit (user provided mapping) to the
> new ports available at the new target. However, this is very limiting in
> templates today and would be very limiting to the effectiveness of the
> versioned flow registry and porting between environments.
> We could make the URL support expression language statements but at present
> that would be the first non component property (like processor properties)
> where EL is allowed and we need to have a more thoughtful and consistent
> approach for that to include things like number of processor threads/etc.. A
> cleaner and more consistent option is to do this like sensitive properties
> are being handled in versioned flows which is they are not part of the
> versioned flow definition but rather on import or when edited we allow the
> user to set their environment/flow specific values all without making the
> local flow version dirty in terms of versioned flow management.
> So, we should allow the user via the UI and obviously through REST API calls
> to change the URL. This would require stopping the RPG, changing the target
> URL (resycing/establishing remote ports/auth/etc..), then starting it. We
> need to make sure this change does not necessitate a new version of the flow.
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