[NIFI-9730] When upgrading to 1.16 or importing a flow from an older version, NiFi shows local changes on each processor

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.16.0
• Fix Version/s: 1.16.0
• Component/s: Core Framework
• Assignee: Mark Payne
• Reporter: Mark Payne
• Created: 25/Feb/22 19:09
• Updated: 01/Mar/22 18:50
• Resolved: 01/Mar/22 18:50

Description

This issue does not affect any version of NiFi that has already been released.

Version 1.16 of NiFi now exposes several options for retrying failed attempts for processors. Versioned Flows built against older versions of NiFi don't have these fields. As a result, it shows all of these changes as Local Modifications (e.g., Max Backoff Period changed from 'null' to '10 mins').

We should ignore these changes when the comparison shows that a null value was changed to the default value.

This means that any flow that's been checked out from registry cannot be updated to a different version because it has local modifications. And those local modifications can't be reverted. Because of this, marking the priority as BLOCKER.

Issue Links

• links to: GitHub Pull Request #5809