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https://issues.apache.org/jira/browse/NIFI-13309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ferenc Kis resolved NIFI-13309.
-------------------------------
Resolution: Fixed
> MiNiFi flow update fails to lookup compatible bundles
> -----------------------------------------------------
>
> Key: NIFI-13309
> URL: https://issues.apache.org/jira/browse/NIFI-13309
> Project: Apache NiFi
> Issue Type: Bug
> Components: MiNiFi
> Affects Versions: 2.0.0-M1, 2.0.0-M2, 2.0.0-M3
> Reporter: Ferenc Erdei
> Assignee: Ferenc Erdei
> Priority: Minor
> Labels: minifi-java
> Fix For: 2.0.0-M4
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> h3. Issue
> Publishing a MiNiFi flow that was designed with not the same manifest version
> as the current MiNiFi runtime use causes flow update failure.
> Steps to reproduce:
> * Design a Flow with the previous NiFi version
> * Publish that flow through C2 Server
> h3. Expected behaviour
> The flow should be loaded with the compatible bundles.
> h3. Actual behaviour
> Exceptions in logs:
> {noformat}
> 2024-05-29 11:43:43,872 INFO [pool-15-thread-1]
> o.a.n.f.s.StandardVersionedComponentSynchronizer Added
> GhostProcessor[id=f4d7586c-d575-4255-bbe1-c0f7b129a7ea] to
> StandardProcessGroup[identifier=7072239a-c047-4d5e-8e68-cd2cbc651343,name=root]
> 2024-05-29 11:43:43,872 ERROR [pool-15-thread-1]
> o.a.nifi.controller.ExtensionBuilder Could not create Processor of type
> org.apache.nifi.processors.standard.GenerateFlowFile for ID
> d7c7463f-beaf-4122-b7af-581a41740512 due to:
> org.apache.nifi.processors.standard.GenerateFlowFile; creating "Ghost"
> implementation{noformat}
> And Flow is reverted to the previous flow.
> h3. Root cause
> We have a condition in
> [https://github.com/apache/nifi/blob/main/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/controller/serialization/VersionedFlowSynchronizer.java#L170]
> for the existing flow, but we should have a null check for the proposed, and
> map the compatible bundles even if the old flow was empty.
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