Issue 081 opened (a cache consumer does not use its login); 079 and 080 diagnoses carry the review's consequences
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@@ -22,3 +22,10 @@ machine with an address, while the resolver's "on the private network" is a mach
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runs the module that puts it there. The names follow the resolver's rule now — one predicate,
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used by both — held by a controller test that unassigns one machine's networking and reads the
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names back.
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Two consequences of the one predicate, on review. The filter's "from the mesh" set is that same
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set now, so a rule admits exactly the machines the mesh names. And a machine whose assigned set
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fails to resolve is no longer on the network in the mesh's eyes: its name leaves every other
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machine's hosts file and every resolver's zones on the next push, and the mesh's report of that
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machine's failure is what says why — the stated preference for a name that fails at once over a
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connection that hangs, at the cost of one machine's failure being visible mesh-wide.
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@@ -7,3 +7,8 @@
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what a consumer scoped to a prefix should use.
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**Located in:** the redis module's client. Not a decision. Proven by the grant end-to-end bed.
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*On review.* `INFO` is in the dangerous category and several client libraries ask it at connect;
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it reads nothing a consumer keeps, so it is allowed back. Whether the catalogue's two cache
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consumers need anything else the category removes is unverified — and moot until they present the
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login they were granted ([issue 081](../081-a-cache-consumer-does-not-use-the-login-it-was-granted/00-report.md)).
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@@ -0,0 +1,31 @@
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---
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status: open
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opened: 2026-09-22
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located-in: [mesh-catalog modules/n8n, mesh-catalog modules/baserow]
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---
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# 081 — A cache consumer does not use the login it was granted
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## Symptom
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Two catalogue modules require the cache and are given a login and a password under a keyspace of
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their own ([issue 080](../080-a-cache-grant-lets-the-consumer-flush-the-server/00-report.md)),
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and neither tells its software the login: each hands it the host, the port and the password only,
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so the software authenticates as the server's default user and writes wherever it likes — or is
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refused, if the default user is closed. The grant is honoured by the provider and ignored by the
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consumer.
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Found on review of issue 080, by reading the two manifests. Not run: no bed installs either
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module against the catalogue's cache and reads what it wrote.
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## Why it matters beyond the instance
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A grant is two ends agreeing. The provider's end is checked by the grant bed; the consumer's end,
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that the software actually presents what it was given, is checked by nothing but the module
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working — and a module that works as the default user works.
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## What would close it
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Each module passes the login it was bound (`${bound:redis-cache:as}`) to its software's username
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setting, and a bed installs one of them against the catalogue's cache and reads back that its keys
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sit under its login.
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