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https://issues.apache.org/jira/browse/NIFI-5029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16846176#comment-16846176
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Doug Kalemba commented on NIFI-5029:
------------------------------------

thanks [~bende] for responding.  

perhaps you could add a couple of more steps, to more replicate the issue i was 
seeing...
 # NIFI#1: change a value in either the properties or settings in a processor 
in PGB
 # NIFI#1: commit changes to PGB
 # NIFI#1: commit changes to PGA
 # NIFI#2: change version of PGA to newest version
 # NIFI#2: look for a "Local changes have been made" indication on the PGB.  

I have found that when i do the above, PGB will tell me that it is the new 
version, but i will get the "local changes" message and the values/properties 
that i have changed will be the old ones.  HOWEVER, adding/removing processors 
seems to work fine.  PGB does change version, but the previous versions's 
properties/settings are restored and a "local change" message showing the 
restoring of those values is presented.  

> CLI - Handling of embedded versioned process groups during export/import
> ------------------------------------------------------------------------
>
>                 Key: NIFI-5029
>                 URL: https://issues.apache.org/jira/browse/NIFI-5029
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Flow Versioning, SDLC, Tools and Build
>            Reporter: Pierre Villard
>            Priority: Major
>              Labels: SDLC
>
> I'm in a situation where, in my dev environment, I have a versioned process 
> group A in bucket bA containing an embedded process group B from bucket bB. 
> Both A and B are versioned in the NiFi Registry of my dev environment.
> I'm using the CLI to export both A and B from my dev Registry, and then 
> importing A and B in my prod Registry. The issue is that in the json 
> representing A, there is a reference to B containing the url of the dev 
> Registry, the bucket ID and the workflow ID representing B.
> To import B in my prod registry, I first created a bucket bB and a workflow 
> B. New UUIDs have been generated for both in the prod registry. Then I did 
> the import of the JSON representing B.
> Now I manually update the JSON representing A to set the UUIDs related to B 
> with the new values of my prod registry. Then I created a bucket and a 
> workflow for A in my prod registry, and did the import.
> Problem occurs when I try to import the process group A in my prod NiFi. 
> It'll fail with an error looking like this:
> {code:java}
> #> nifi pg-change-version -fv 2 -pgid &1 -u http://localhost:8080
> > Using a positional back-reference for 'A'
> ERROR: Error executing command 'pg-change-version' : Error updating version 
> control information: The Flow Registry with ID 
> 56a49113-0162-1000-0a7e-4959d312d445 reports that no Flow exists with Bucket 
> 9d87ccc4-7084-4069-850a-7704135ea9e9, Flow 
> 7e47aeba-4908-41a6-88d7-e6deb1abef98, Version 2{code}
> I guess there are multiple ways of handling it. It could be on the CLI side 
> or on the Registry side (could be related to NIFIREG-148).



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