[jira] [Updated] (NIFI-15012) FlowDifferenceFilters - fix handling of createControllerService()

["Pierre Villard (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-15012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pierre Villard updated NIFI-15012:
----------------------------------
    Status: Patch Available  (was: Open)

> FlowDifferenceFilters - fix handling of createControllerService()
> -----------------------------------------------------------------
>
>                 Key: NIFI-15012
>                 URL: https://issues.apache.org/jira/browse/NIFI-15012
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Pierre Villard
>            Assignee: Pierre Villard
>            Priority: Major
>
> In NIFI-14995, we tried to properly handle the case where a property is added to hold a newly created controller service but the logic was not correct in terms of how migrateProperties is called and the sequence of objects creation.
> We only looked up the new property through the live ComponentNode to confirm it identified a controller service. In the real migration sequence, the property is added to the versioned component before there’s a live node (the component is a freshly imported controller service), so getComponent(...) returned null, the property was ignored, and the context never saw the controller-service ID. Without that linkage, the corresponding COMPONENT_ADDED diff wasn’t marked as environmental, leaving both the property addition and the service creation visible as local changes.
> We are improving the logic to properly handle this scenario.



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