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https://issues.apache.org/jira/browse/NIFI-11394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard resolved NIFI-11394.
-----------------------------------
Resolution: Feedback Received
Apache NiFi 1.x is no longer maintained and no new release is planned on the
1.x release line. Marking as resolved as part of a cleanup operation. Please
open a new one with an updated description if this is still relevant for NiFi
2.x.
> If changing flow version and a port is modified and running, will fail to
> update
> --------------------------------------------------------------------------------
>
> Key: NIFI-11394
> URL: https://issues.apache.org/jira/browse/NIFI-11394
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.21.0
> Reporter: Mark Payne
> Priority: Major
>
> To replicate:
> Create a Process Group, named Parent
> Within it, create an Input Port, "Input" and connect it to an UpdateAttribute
> Processor.
> Save this as Version 1
> Then, create a Child PG, "Child". Move the Input Port, the connection, and
> the UpdateAttribute Processor within the Child. Then, at the Parent level,
> create a GenerateFlowFile processor and connect it to the Child's Input Port.
> Save this as V2 of the flow.
> Start running the flow at the Parent level.
> Change the flow back to V1.
> It will stop the components and then fail, indicating that it failed while
> waiting for Processors to stop.
> In the user log, there will be an entry along the lines of:
> {code:java}
> 2023-04-06 16:37:57,898 INFO [NiFi Web Server-27]
> o.a.n.w.a.c.ResourceNotFoundExceptionMapper
> org.apache.nifi.web.ResourceNotFoundException: Unable to find processor with
> id 'fa651d99-e230-3416-95e5-5e5686a9ad41'.. Returning Not Found
> response.{code}
> The ID listed there is the ID of the Port. The issue appears to be that it is
> providing the Port ID as the ID of a processor to stop.
> At this point, the flow is stopped (or at least the relevant components are).
> So a simple work around is attempting the Change Version the second time,
> which succeeds. The components can be restarted.
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