PreStart's eager resolve of IMeshCommandDialer/IMeshPskProvider loses a
millisecond-wide race against the Akka builder's remaining starters on
essentially every admin boot (live gates: 1A 2/3 boots, 1B 4/4 boots) and
self-heals at the memoized Dialer/PskProvider properties' first use. Before
this change that produced two FALSE Errors per healthy boot, which made a
soak error-grep on a healthy rig impossible.
Resolve() now takes a `firstUse` flag and logs at Debug on BOTH call sites
(PreStart and the memoized properties' retry) — from inside Resolve a lost
race and a genuinely broken factory are indistinguishable, so severity is
decided by the CONSUMER of a still-null result after the retry, not by
Resolve itself:
- Dialer: DispatchOverGrpc's existing per-dispatch Error ("no command
dialer is wired") is unchanged and is now the ONLY loud signal for that
dependency.
- PskProvider: PublishKnownClusters gained a new Error carrying the old
PreStart guard's diagnostic content (gate never published, cached keys
never dropped, rotated key needs restart), guarded to fire ONCE per
actor incarnation via `_pskProviderAbsenceReported` — that handler runs
on the contact-refresh timer for the actor's whole life, so an
unguarded Error there would repeat every ContactRefreshSeconds forever.
Design choice for the "factory never supplied" case (Dps/ClusterClient test
constructions that pass no factories at all): kept silent at BOTH call
sites for both dependencies, same as before. For the dialer this was
already true (DispatchOverGrpc's check doesn't care why the dialer is
null). For the PSK provider the new once-guarded Error is gated on
`_pskProviderFactory is not null` specifically so the many existing
ClusterClient/Dps facts in CentralCommunicationActorTests that never wire a
PSK provider (using the bare Spawn helper) keep passing unmodified — a
never-supplied factory is a deliberate wiring/test choice, not a resolve
failure, and Resolve() already stayed silent about it for the same reason.
Two new tests pin the net behavior: a healthy boot (factories that throw
once then succeed) produces zero Warning/Error end-to-end through PreStart,
the first contact load and the first dispatch; a permanently-broken PSK
provider logs the absence exactly once across two contact loads, not once
per refresh.
Claude-Session: https://claude.ai/code/session_014WNM4vjoVksyyBraTXSZE1
Joseph Doherty
a94eb8a335