The empty answer for an unknown value never reaches a backend, so it must
leave /healthz reporting a whole estate.
- assert partial_rounds stays 0 after an unknown-value drilldown
The <value> path segment is client-supplied and reached a full unfiltered
/facts fan-out, keyed per value, so every distinct value was a fresh
whole-estate query and a fresh cache entry.
- validate <value> against the configured backend names, answering [] with
no fan-out when it names none
- key the drilldown's fetch on the fact name alone and apply <value> to the
shared record set, so all values share one entry and one fan-out
- report every configured backend on the no-fan-out empty response, which is
complete rather than partial
/fact-names advertises the fact, so its drilldown must not be a dead link.
- Serve the source fact's own path from the /facts merge that produces the
records, so certname set, owner and environment match /facts.
- Filter /facts/<source-fact>/<value> by the owning backend.
- Keep the aggregate, query-gate and disabled paths answering as before.
An aggregate row carries no certname, so the per-certname merge collapsed
every backend's row into one bucket and served a single backend's count as
the estate's — no error, no warning, X-Backends still 2/2.
- Route an aggregate query on /facts/<name>[/<value>] to the summing path.
- List the injected fact's name in /fact-names instead of hiding it.
- Reject an order_by on any field but name, as the backends do.
Both fell to the unmerged pass-through, so one backend's answer was served
as if it were the estate's: Puppetboard's fact drilldown lost the other
backend's nodes and its facts overview lost that backend's fact names.
- Serve /facts/<name> and /facts/<name>/<value> through the /facts merge.
- Serve /fact-names as a deduped, re-sorted, re-paged union of name arrays.
- Gate provenance on the path: only /facts/<source-fact> may be injected.
- Keep the owned fact name out of /fact-names while the feature is on.
- Cache both alongside the merged /facts and /nodes record sets.
- Turn the two recorded e2e gaps into positive assertions.