registry shows feature deprecated but serving path still reads it error

TL;DR

Remove the deprecated view from the feature service (or repoint the service at its replacement) and apply the change, because deprecation marked the registry entry while a live feature service still references it and serving follows the service, not the deprecation flag. Start with the feature service definition and every alias or view that points at the deprecated feature, work on one affected call, record, or run first, and prove the fix there before running the full set. Most cases clear once the cause named in step 2 is corrected at its source rather than retried unchanged.

registry shows feature deprecated but serving path still reads it error

Use this when

• You see this exact message or symptom: registry shows feature deprecated but serving path still reads it error
• One run, record, call, or object is affected and you can name it
• A retry without changing anything reproduces the same result

Not for this skill when

• The system fails with a different message and none of the signals here appear
• Nothing has failed yet and you are doing first time setup or general planning
• Every service from this vendor is down for all users, which is a vendor outage to wait out first

Steps

1. Reproduce the failure once using the feature service definition and every alias or view that points at the deprecated feature, and record the time, the workspace or account, and the one item it names. Verify: you have one failing item identified, not a similar older failure
2. Inspect the feature service contents, aliases resolving to the deprecated view, and which production callers request the service rather than the view directly. Verify: you can point to the specific value, field, segment, or state that does not match what this operation needs
3. Apply the fix at that source: Remove the deprecated view from the feature service (or repoint the service at its replacement) and apply the change, because deprecation marked the registry entry while a live feature service still references it and serving follows the service, not the deprecation flag. Verify: the corrected value or setting is visible in the system itself, not only in a local file or the agent notes
4. Re-run the original operation on the single affected item first. Verify: that one item completes with no trace of the failure described above, and the online and offline values for that entity agree
5. Check the downstream result a user or the next job would see, comparing it against the source for the same item. Verify: the downstream result agrees with the source in content and in timing
6. Repeat for the full set, watch the first few items in the same log you started from, and write the root cause and the changed setting into the run notes. Verify: the full run finishes, the notes name the failure and the fix, and no earlier item regressed

Variant phrasings

registry shows feature deprecated but serving path still reads it error

The subject-first phrasing of the same failure. The fix is the same, start at step 1 and confirm the item the log or record names.

Tool-first phrasing of this failure

The phrasing searchers use once they know which system raised it. It is the same underlying problem, not a separate bug.

Why does this keep happening after a retry

The repeat-occurrence phrasing. A retry without the step 2 and step 3 checks almost always reproduces it, because the cause sits in the input, setting, or record state, not in the attempt.

Compatibility: Feast feature services, Tecton feature services, registry deprecation workflows.

Why it happens

Deprecation is metadata. It warns, it does not unlink. As long as a service, alias, or cached definition references the old view, the serving path has no reason to stop reading it.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst__82ctfSyJP7kKdu6FuW1mg