Mark Payne created NIFI-6949:
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Summary: When deleting a Controller Service, the references to
higher-level Controller Services are not removed.
Key: NIFI-6949
URL: https://issues.apache.org/jira/browse/NIFI-6949
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Reporter: Mark Payne
Assignee: Mark Payne
Consider a flow where we have Process Group A. Group A has Controller Service A.
Group A also has a child group, Group B. A Controller Service within Group B
references Controller Service A.
If said Controller Service is removed (or Group B removed), Controller Service
A still holds the fact that the Controller Service was referencing it, even
though the Controller Service no longer exists.
To replicate:
Create Process Group A. Within this group, create an AvroSchemaRegistry.
Create Process Group B within Group A. Within Process Group B, create a
JsonTreeReader and configure it to reference AvroSchemaRegistry. Now delete
Process Group B. Configure Group A, then click to configure AvroSchemaRegistry.
You'll see that the Controller Service still thinks JsonTreeReader is
referencing it, even though the component doesn't exist.
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