[NIFIREG-228] Cannot delete a flow with no versioned snapshots

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: Kevin Doran
• Created: 19/Feb/19 13:57
• Updated: 19/Feb/19 14:52
• Resolved: 19/Feb/19 14:52

Description

I have not verified/reproduced this yet. This bug reported on stack overflow:

https://stackoverflow.com/questions/54744738/cannot-delete-a-flow-in-nifi-registry-via-http-call-when-using-git-as-storagei

If saving an initial flow version fails, a flow can be created with no versioned flow snapshots. (The flow has "versionCount": 0). Such a flow can be created by saving a flow snapshot that changes the flow name from the already versioned flow, according to the reporter on github. The original reporter was usingthe git flow persistence provider and the nipyapi versioning.save_flow_ver() call.

When tying to delete this flow using DELETE /buckets/<bucketId>/flows/<flowId>, it fails with a 409 error.

The workaround is to save a dummy flow snapshot to get the flow to version 1 and then the entire flow can be deleted.

The fix is that such flows (flows without versions) should be deletable.

Issue Links

• duplicates: NIFIREG-205 NiFi Registry DB gets out of sync with git repository, no apprent remediation