Review m-1. The bind moves from Program.cs into
Host.Configuration.ScriptingOptionsBinding.Bind, which binds the
section and clamps it. Program.cs calls it, and
ScriptingOptionsBindingTests drives it with in-memory configuration.
Every documented key takes a non-default value, so a misspelled
property or key goes red instead of silently falling back to the
defaults. The tests also cover a clamped bind (1e300 / 1024 / 0, three
adjustments), an absent section, and the sibling LogFilePath /
LogTopicMinLevel keys leaving the bind untouched.
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Review I-2. Under factory Props a supervision restart of
ScriptedAlarmHostActor builds an empty engine, and nothing re-sent
ApplyScriptedAlarms. Until the next deploy the host had no mux interest
(inputs stopped), and its ownership filter silently dropped every
operator ack and shelve.
The host now tells its parent ScriptedAlarmHostRestarted from
PostRestart. DriverHostActor keeps the last plans it applied and
re-sends ApplyScriptedAlarms when the signal comes from the current
host, in Steady, Applying and Stale. This mirrors how a driver child's
ReprovisionRequested is answered. The OnAlarmsLoaded comment, which
assumed a re-apply that never happened, now says where it comes from.
DriverHostActorScriptedAlarmRestartTests deploys one scripted alarm
through a real host, crashes the alarm host, does NOT re-apply by hand,
and asserts that interest is re-registered, a dependency push activates
the alarm, and an operator ack reaches the engine. It is red without
the signal (times out waiting for the re-registration).
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Review I-1. Context.Stop is asynchronous, so a removed child kept
publishing through the rest of the apply handler and its own stop.
Those bursts were forwarded after SourceRemoved and re-retained the
removed driver's last Good in the mux, where nothing would ever clear
it while a replay subscriber held the ref (a removed driver never
publishes again, and its PostStop Bad fan resolves no refs once the
index is rebuilt without it).
StopChild and HandleRestartDriver now retire the child (_retiredChildren
+ Context.Watch) before stopping it. ForwardBatchToMux drops a burst
whose Sender is retired, and Terminated (handled in Steady, Applying and
Stale) removes the entry. Akka delivers Terminated after the watched
child's last message, so the set is bounded and a live incarnation is
never filtered. ConnectivityChanged from a retired child is
deliberately not filtered, because the respawn path relies on its Bad
fan.
Tests (review m-3 folded in): a stale burst spoofed as the removed child,
held alive in PostStop by a new RecordingSubscribableDriver.ShutdownGate,
no longer re-retains (red with the guard disabled). New cases cover a
config-change respawn and an operator Restart, each with the new
driver's value replaying as the positive control. The arrange step now
waits for the real subscription set and fishes for both drivers'
values at once (two sequential fishes could discard the other burst).
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
It had no production sender: every driver data change is already a
batch, and the comms-loss fan was converted earlier. DependencyMuxActor
drops its per-value receive, DriverInstanceActor drops the record, and
DependencyMuxActorTests' 13 sends move to the ValuePublishes.Single
one-item batch (same semantics through the batch path). XML docs and
the living docs (DriverLifecycle, VirtualTags, ScriptEditor) are
reworded; historical plan docs are left as written.
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
The parameter was retained only for signature stability after the
EfAlarmConditionStateStore fallback that consumed it was retired. It is
removed from Props, the constructor and the positional Props.Create
forwarding list together, and from its one caller in
WithOtOpcUaRuntimeActors. No test passed it.
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
DriverHostActor now tells the mux SourceRemoved(driverInstanceId)
wherever a driver object ends: StopChild (deploy removal and the stop
half of a config-change respawn) and an operator Restart. It is not
sent on a supervision restart, which re-uses the same driver. Before
this nothing sent it, so a removed driver's last Good stayed in the
mux and replayed to the next replay-opting subscriber as current.
DriverHostActorSourceRemovedTests drives a real mux with two real
driver children: after a deploy drops DI-1 only DI-2's value replays
(positive control: both replay before the removal), and a supervision
restart of DI-1 leaves its value replayable.
Residual (documented on EvictRetainedValues): a burst the old child
enqueued just before it stopped can still be forwarded after the
eviction; the next publish, a comms-loss fan or the grace sweep
bounds it.
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
DriverHostActor now hands ScriptedAlarmHostActor an engine factory
instead of a pre-built engine, so every incarnation (a supervision
restart included) builds, owns and disposes its own upstream + engine.
The legacy overload was already restart-safe in the detach sense, so
this is hygiene rather than a live hole; the factory path is the one
ScriptedAlarmHostActorRestartTests covers end to end. The closure
captures locals only and carries the node-wide ScriptingOptions.
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
ScriptContext.CancellationToken is backed by an AsyncLocal that
ScriptEvaluator.RunAsync scopes around the compiled delegate, so it is
exactly the token ScriptRunGuard cancels on timeout. A polling script
can now end its own abandoned run and free the slot. AsyncLocal rather
than a field because the scripted-alarm engine reuses one context per
alarm: an orphan keeps seeing its own cancelled token. The scoping
entry point is internal (IVT to Core.Scripting) so a script cannot
replace its own token.
Editor parity: ScriptAnalysisService dot-completion now walks the
receiver's base chain (instance members only, stopping before
System.Object). Before this, a member declared only on ScriptContext
compiled and published but never completed. DiagnoseTests pins the
member as allow-listed; CompletionTests pins the completion.
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Program.cs binds ScriptingOptions from Scripting:* once, clamps every
numeric knob through ScriptingOptions.Sanitized (logging a Warning per
adjustment) and registers the one instance. It now reaches all three
script seams: RoslynVirtualTagEvaluator, the scripted-alarm engine
built in DriverHostActor (new trailing Props parameter, wired in
WithOtOpcUaRuntimeActors) and every Calculation driver (node options
as the base, per-driver config keys override one knob on a copy).
ScriptRunGuard sanitizes again in its ctor and computes the stuck
threshold with a saturating multiply, so an absurd
StuckOrphanQuarantineFactor can no longer throw OverflowException on
a refused run.
Refs #731#734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Re-review 1: HandleDispatch's terminal guard and its AwaitingApplyAcks flip read the row separately, so a
lost-dispatch closure committed between them was silently reopened. The flip now carries the RowVersion the
guard read; a change in between is a concurrency conflict (nothing seeded, nothing published, coordinator
reset). Pinned on real SQL Server with a closure injected between the two reads (fails without the fix).
AdminOps' apply deadline and the coordinator's now both read DeployTimings.ApplyDeadline, passed explicitly
to both singletons. Microsoft.IdentityModel.Protocols(.OpenIdConnect) pinned to 8.11.0 and referenced
directly by the Security project, so the whole IdentityModel family resolves 8.11.0 (fresh restore clean
of NU190x/NU1605).
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Ruling refinement on I1. Only timeouts are strikes, so a never-returning
while(true), which times out once and is then only refused, was never
quarantined, and that defeated E1. A refusal now quarantines immediately
when the orphan it was refused behind has been executing for longer than
ScriptingOptions.StuckOrphanQuarantineFactor x the script's timeout
(default 10, so 20 s at the 2 s default; 0 or less disables it). It uses
the same quarantine path: one Error, otopcua.script.quarantined with
reason=stuck, Bad, lifted on source change or redeploy. A young orphan
(a short overrun) is still a plain refusal.
The guard stamps the run's start (Stopwatch timestamp) when the pool
picks it up and clears it when the run really finishes.
Tests: the 30-trigger while(true) regression (paced) now ends
quarantined with reason "stuck", still with exactly one orphan and a
healthy sibling. Positive control: a 2x overrun is refused, not
quarantined, and evaluates again once the orphan completes. A factor of
0 disables the rule. Docs (ScriptEditor "Runtime safety", VirtualTags)
and the seam remarks are updated.
Refs #734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
BoundedApiKeyStore kept the set (volatile) and its DateTimeOffset stamp (non-volatile, 16 bytes) in separate
fields, so a reader could pair a new set with an old stamp or read a torn stamp; they are now one immutable
snapshot behind a volatile reference. An inner store that cannot list ids now switches the set off with a
per-instance flag instead of writing KnownIdSet = false into the shared ApiKeyStoreGuardOptions.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
RefreshAsync now tells "the store answered: no such secret" (revocation - drop the refreshed key AND the
lazily cached one) apart from "the read failed" (keep the previous key). Store reads fan out through
Parallel.ForEachAsync capped at MaxConcurrentRefreshReads = 8 instead of one read per cluster at once.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
The one-snapshot refactor re-sorted every collection in memory with an ordinal comparer, while the old
composer's SQL ORDER BY used the database's case-insensitive collation; mixed-case keys therefore re-hashed
an unchanged configuration (spurious drift fleet-wide, a "new" revision on a no-op redeploy). The snapshot
factory now reads every composed table ORDER BY its natural key server-side and Compose serialises in the
order given. Pinned byte-for-byte against a verbatim replica of the old composer on the real SQL Server.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
GalaxyTelemetryTests (ActivityListener) and GatewayGalaxyDataWriterFailClosedTests
(MeterListener, filtered only by meter and instrument name) observe every Galaxy span or
measurement in the process. They now run in a collection with parallelization disabled
(F-FU6), because a parallel driver test, or its background probe seed, polluted their counts.
The stream-cancel assertion in GalaxyDriverShutdownTests goes back to a bounded wait: the
instantaneous IsCompleted check introduced in round 1 was racy.
Refs #735
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Review fix round 2 for lane F:
- N1: the init platform seed no longer runs inline under the init token. Galaxy's Tier-A
Initialize budget is 5 s, and a cold gateway DiscoverHierarchy can spend all of it, so the
OperationCanceledException rethrow failed init, opened the Initialize breaker and cost a full
rebuild per retry. InitializeAsync now only resolves the platform source (no network) and
queues a background seed tied to a per-runtime CTS that the teardown cancels. A result that
lands after its runtime was torn down is discarded.
- N2: the seed worker serves the runtime that is live when each pass STARTS, so a request made
under a new runtime while a stale pass is in flight always gets a pass of its own.
- N3: SubscribeAsync and the subscribe-once read capture the runtime generation before
SubscribeBulk and register only if it is unchanged, atomically with the teardown's registry
Clear (_registryGate). On a mismatch they release the handles and fail the call. Re-subscribe
Rebind uses the same gate, and the production rebuild clears the registry unconditionally.
- PerPlatformProbeWatcher re-checks its stop after the SubscribeBulk await, atomically with
the record and publish. A pass that straddles StopAsync releases the handles it acquired
instead of writing the probe entry back into a cleared registry.
Refs #735
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
I7: a Dispatching row committed after the coordinator's PreStart whose Tell never arrived had no owner and
refused every later deploy. The in-flight check (now fully off the admin singleton's thread, serialised by the
actor-local compose flag alone) closes a Dispatching row with zero NodeDeploymentState rows that is past the
apply deadline as TimedOut (optimistic on RowVersion) and proceeds.
HandleDispatch ignores a dispatch for a Sealed/PartiallyFailed/TimedOut row, so a late or duplicated dispatch
cannot flip it back. Coordinator status/reason writes attach a key+RowVersion stub instead of loading the
multi-MB ArtifactBlob; proven on the real SQL Server (blob untouched, seal lands).
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
SQL Server's DbUpdateException for one duplicate names every entry in the statement batch, so detaching
ex.Entries dropped the whole flush. On a row-level rejection the writer now asks the database which of the
batch's EventIds it already holds, drops exactly those, re-saves the rest, and falls back to row-by-row only
if a non-duplicate row is still refused. Fresh context + entities per attempt. Pinned against the real
central SQL Server (new SqlServerTestDatabase harness) and a faithful whole-batch interceptor.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- ScriptLogRateLimiter.LimitPerWindow. The ScriptLogTopicSink and
VirtualTagActor summaries now print the configured limit, not
DefaultLimitPerWindow. Tests assert "limit N/window" for a non-default
N.
- CalculationDriver.Dispose cancels, then takes _evalGate (bounded 2 s)
and disposes the gate and _evalCts. The pump and timer ticks enter the
gate through TryEnterEvalGateAsync, which stops cleanly once the
driver is disposed. Test: Dispose with a 6 s runaway run in flight
returns promptly, disposes both, and a late trigger is harmless.
- ScriptedAlarmEngine captures _shutdownToken once and disposes
_shutdownCts in Dispose when every drained task has completed. A task
stuck past the grace leaves the CTS to the GC. Lifecycle tests assert
the disposal.
- DraftValidator: CalculationNoEffectiveTrigger is skipped for a
change-triggered tag whose scriptId does not resolve. That case is
already CalculationScriptMissing or CalculationScriptNotFound, and
there are no reads to count. Both existing tests now assert the
absence (red before the change).
- docs/VirtualTags.md: System.Threading is denied as a whole namespace,
with an allow-list; the type list is now accurate (Unsafe,
RuntimeHelpers, and the ForbiddenMembers on System.Type); the resource
limits section covers the run guard and the allocation budget.
docs/ScriptEditor.md: accurate deny-list and a new "Runtime safety"
section covering timeout, refusal, quarantine after 3 timeouts,
allocation budget, lifting, and rate-limit summaries that appear only
on the source's next entry after a burst then quiet.
Refs #734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
The window used to count every terminal row, so 50+ failed deploys pushed the last good artifact out of it.
Now the newest KeepSealed (>= 1) Sealed rows keep their blob, failed rows are prunable unless referenced in
the ReferencedDays window. Pinned: 60 TimedOut + 1 old Sealed -> Sealed retained, 60 TimedOut emptied.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
The fixture wedged EVERY write on one shared token-ignoring release gate, so
the later same-tag write was also hung, and the 300 ms pessimistic bound
abandoned it while the test was still polling before ReleaseWrites(). Its
reason was "write did not complete within" (the bound), not "queued for" (the
queue budget), and it had already entered the driver, so the tag had been
released. The release path is correct. Only the first write now hangs, and
later writes complete at once.
The abandon reason formatted the bound with TotalSeconds:F0, which printed a
300 ms bound as "0s". It now uses milliseconds, and the test asserts it.
Refs #731
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Coordinator ruling (I6): until ServiceLevel consumes IOpcUaEndpointState (F-C1), the probe must not sit on
the Active tier of a fused node, because Traefik routes the AdminUI on /health/active. Driver-only nodes keep
it on Ready + Active; admin-only nodes do not register it. Pinned per role.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
ServerAuthenticationStateProvider throws InvalidOperationException from GetAuthenticationStateAsync in any
scope where no circuit set its state (minimal-API requests, hosted-service scopes). The accessor now treats
that as "no circuit identity" and falls back to the HTTP principal. Pinned with the real provider on both
sides (unset -> HTTP fallback; set -> circuit principal wins).
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
The hand-rolled bearer handler is replaced by AddJwtBearer (Microsoft.AspNetCore.Authentication.JwtBearer
10.0.7, pinned on the same servicing line as the other AspNetCore packages). Validation parameters come
from JwtTokenService.BuildValidationParameters, which now pins ValidAlgorithms = HS256 for both the
bearer scheme and TryValidate; MapInboundClaims is off so the minted Role/zb:username keys resolve.
/auth/token requires the cookie scheme, so a bearer can no longer mint a fresh token for itself.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
DependencyMuxActor retained the last value of every ref ever registered,
and never removed the entries. The continuous-historization recorder
registers every historized ref, so on a historizing node the map grew
with the historized address space and never shrank. The class remark
claimed a bound that did not hold.
- Retain only refs that at least one subscriber registered with
ReplayRetained: true names (VT actors, the Calculation mux adapter, the
scripted-alarm host). A non-opting subscriber is still delivered to but
retains nothing.
- When a ref's last replay-opting subscriber leaves, its value is kept
for a grace (default 2 min, Props(retentionGrace)) so a restart
(old adapter gone, new one not yet registered) still replays. A
periodic sweep then drops it along with the entry. Entries with no
subscriber and nothing retained are removed.
- New SourceRemoved(DriverInstanceId) evicts the values a removed driver
produced, so its last Good is never replayed. The mux records the
publishing driver per retained ref. No production sender exists yet:
DriverHostActor is outside this lane (follow-up).
- Remark rewritten. Tests: retention bounded to replay-opting refs,
release after grace (with an in-grace replay as the positive control),
SourceRemoved eviction, and the restart-replay scenario still green.
Refs #734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
The writer concurrency fake parks on its release signal (the 300 ms delay could release the
gate early on a starved pool), the supervisor test's cross-thread hold flag is Volatile, and
the EffectiveTimeout doc now states the 1 s floor the code and tests implement.
Refs #735
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Review fix round 1 for lane F:
- The ScanState probe watcher is seeded at InitializeAsync from a platform-only
DiscoverHierarchy query (IGalaxyPlatformSource / GatewayGalaxyPlatformSource over the owned
repository client) and re-seeded on every deploy-watcher rediscovery. The runtime never
calls DiscoverAsync on a live driver, so per-platform host status was unreachable in
production. A failed fetch logs a Warning and never fails init; re-seeds coalesce so a
deploy during an in-flight pass still gets a pass that starts after it.
- EnsureEventPumpStarted refuses while the runtime is stopping, BEFORE reusing the live pump
(that pump belongs to the dying subscriber), and the production rebuild disposes any stale
pump before wiring the new subscriber.
- TeardownRuntimeAsync closes the MX session under the caller's token linked with a 5 s
SessionCloseDeadline, so a blackholed gateway cannot hold DriverInstanceActor.PostStop for 30 s.
- A runtime generation counter, bumped by every teardown, is re-checked before each Rebind
in ResubscribeAllAsync, so a replay-gap re-snapshot that straddles a teardown cannot
resurrect handles into the cleared registry.
Refs #735
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
The SDK's DisposeAsync closes with no token, i.e. under the 30 s DefaultCallTimeout, so a
blackholed gateway parked the driver's teardown for the whole of it. CloseAsync(ct) runs the
close under the caller's token, drops the channel on a cancelled/failed close (the gateway
reaps the session on its idle lease) and leaves the session re-openable. A close followed by
the final dispose closes the gateway session once.
Refs #735
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- I1 ScriptRunGuard: a run refused because the previous one is still
executing is a Bad publish plus otopcua.script.run_refused, and no longer
a quarantine strike. Only a timeout (and an allocation breach) counts;
a refusal neither adds to nor resets the timeout streak; a completed run
(value or throw) resets it. On a 1 Hz trigger with a 2 s budget a single
4 s overrun is one timeout plus two refusals and must not quarantine.
Tests updated across the guard, the alarm engine, the Calculation
evaluator and the VT evaluator, plus
Refusals_neither_count_toward_nor_reset_the_timeout_streak.
- I3 ScriptedAlarmEngine: the quality bucket is tracked only after the
predicate completes (or in the inputs-not-ready path), so the tracked
bucket is the last one annotated. A refused or quarantined predicate
used to re-track the input bucket Good before the attempt and then flip
it Bad, emitting QualityChanged on every push. The run-guard tests now
count emissions (exactly 1 across N pushes, refused and quarantined
cases), with a healthy sibling's dispatch count as the positive control
that every push was processed. Both were red before the fix.
Refs #734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- RunWriteAsync wraps the invoker call in WaitAsync(writeTimeout) (Props,
default 10 s = 2x the 5 s write cap): a token-ignoring hung write now
answers BadTimeout, releases its slot and tag, and its orphan outcome
is observed and discarded - later writes to that tag reach the device.
- WriteCompleted carries the launching incarnation (from the process-wide
generation source); a late completion from a previous incarnation after
a supervision restart is ignored instead of freeing the new
incarnation's slot/tag.
- Test: a hung token-ignoring tag-a write is abandoned and a later tag-a
write reaches the device while the abandoned one is still inside it.
Refs #731
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- GatewayHistorianDataSource.ReadRawWindowAsync keeps the cap + 1 probe budget
(budgetCap) separate from the client's cap: a strict-ceiling or crowding
refusal now reports Limit = the server cap that applied and advises setting
NumValuesPerNode at or below it (it said "lower NumValuesPerNode" with
Limit = cap + 1 to a client that sent 0).
- Fuzz: the oracle-source over-cap assertion was vacuous (cap 0 never counts);
it now checks no reverse window reached the forward-only shape. Class docs
name the post-floor cap set (3 ... 1000) and distinguish NumValuesPerNode
1 / 2 from the smallest server cap.
- HistoryPaging.IsFullPage doc says it judges the REQUEST cap (page + ties +
lookahead), which is finite under any limit; AdvertiseMaxReturnDataValues
swallows any exception (returns false for the caller to log), as its doc
promised.
Refs #736
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
BoundedApiKeyStore's negative cache was keyed by key id, so a flood of DISTINCT well-formed
otua_<random>_x credentials missed it every time and cost one SQL query per attempt under the
SDK's SessionManager-wide lock, no credential needed (R03:3.3).
- IApiKeyStore.ListKeyIdsAsync (default null = unsupported; ConfigDbApiKeyStore lists every
ApiKeyId): the bounded store keeps a known-id set refreshed every StoreCacheSeconds
(single-flight, failed refresh keeps the previous set) and refuses an unknown id without a store
read ({outcome=unknown_id}).
- A process-wide miss budget (token bucket, Security:ApiKeys:MissBurst=100 /
MissRefillPerSecond=20, ApiKeyStoreGuardOptions) bounds lookups that reach the store and miss
while no set is available; a hit refunds its token. Per-endpoint accounting needs the
OpcUaServer impersonation seam to carry the client address — follow-up.
- docs/security.md: the new knobs, and the known-cluster gate's documented fail-open window at
central boot (R03:4.2) plus the async PSK refresh (R03:3.4).
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- Writes: a second write to a tag already inside the driver waits in the
queue behind it (_tagsInFlight) while other tags still run under the
cap of 4; queued writes are stamped and failed BadTimeout at dequeue
once older than the 8 s host Ask budget (Props queuedWriteBudget)
instead of being written late.
- Initialise attempts are bounded pessimistically (initializeTimeout,
default 30 s = 2x Tier C) on top of the invoker's token-only timeout:
an overrun is logged as abandoned, reported InitializeFailed so the
retry loop continues, and its late result is dropped by generation.
Generations come from a process-wide Interlocked counter so a prior
incarnation's late result cannot collide (F6).
- PostStop shares one shutdownTimeout budget across shutdown + dispose.
- TelemetryDialSupervisor cancels the establishment deadline on
StreamStopped; FleetDiagnosticsClient builds the ActorSelection inside
the try (a malformed node degrades to "unavailable"); the diagnostics
page labels the column "Last health publish".
- Tests: same-tag serialisation with a distinct-tag positive control;
stale queued write BadTimeout; token-ignoring hung init -> later
attempt connects; stopwatch assertion demoted to a ceiling.
Refs #731
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- MeshGrpcCommandDialer.RetainOnly (IMeshCommandDialer, default no-op): CentralCommunicationActor
hands the dialer the current endpoint set on every contact refresh, so a renamed host or moved
port releases its cached GrpcChannel and idle HTTP/2 connection instead of living for the
process (R03:1.3).
- IMeshPskProvider.RefreshAsync (default = the old InvalidateAll): MeshPskProvider pre-resolves
every known cluster's key concurrently, bounded like the sync path, and swaps an immutable
snapshot in atomically; a failed read keeps that cluster's previous key. The actor calls it from
ContactsLoaded (after SetKnownClusters, off-actor via PipeTo) instead of InvalidateAll, so the
first ack per cluster per ContactRefreshSeconds no longer blocks a gRPC thread on a 3 s-bounded
store read or gets denied past the bound (R03:3.4).
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
AuditWriterActor documented per-row dedup on the UX_ConfigAuditLog_EventId index but flushed one
statement batch: a single duplicate EventId (any at-least-once producer across a singleton
hand-over) threw for all 500 rows (R03:2.6). SaveChanges now detaches the entries a
DbUpdateException names (2601/2627 logged at Debug as the expected duplicate, anything else at
Warning) and re-saves, bounded by the batch size; a failure naming no entry stays a whole-batch
failure.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Every deploy stored the whole gzip'd fleet snapshot in Deployment.ArtifactBlob forever (R03:1.2).
DeploymentRetentionActor (admin singleton, proxy-less) sweeps every Deployments:Retention:
IntervalMinutes (60): terminal rows (Sealed / PartiallyFailed / TimedOut) older than the newest
KeepSealed (50) and not referenced by a NodeDeploymentState started/applied within ReferencedDays
(30) get their blob EMPTIED — never deleted, never NULLed: the column stays NOT NULL and every
reader already treats zero bytes as "no artifact" (#485), so no schema migration and no reader
change. In-flight rows are never touched; MaxRowsPerSweep (200) bounds one sweep.
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- R02:H1 ScriptedAlarmHostActor gains a factory Props
(Func<(upstream, engine)>) so every incarnation builds and owns its own
engine; a supervision restart no longer re-creates the actor around a
disposed engine. The legacy instance-taking Props stays source-compatible
and is now restart-safe in the weaker sense (PreRestart marks the stop as
a restart, PostStop then detaches instead of disposing). DriverHostActor
still spawns through the legacy overload (not owned by this lane — F3).
- R02:H3 OnAlarmCommand runs every engine op under a 10 s token linked to
the actor's lifetime (DefaultCommandTimeout / Props commandTimeout) and
logs a Warning on timeout instead of suspending the mailbox on a stalled
store.
- R02:L3 DependencyMuxTagUpstreamSource.RetainOnly(loaded dep-ref union),
called after every successful load.
- R02:P6 VirtualTagActor's per-failure ScriptLogEntry is rate-limited per
tag (ScriptLogRateLimiter, 20/min + one summary); the Bad publish and the
metric are untouched.
- R07:H6 DependencyMuxActor retains the last (value, status, ts) per
ever-registered ref (through unregisters) and replays them in one batch to
a RegisterInterest(ReplayRetained: true) — VirtualTagActor, the Calculation
mux adapter and the alarm host opt in; the historization recorder does not
(a replay there would record a stale sample per deploy). CalculationDriver
records inputs regardless of _running so a replay landing before
InitializeAsync still satisfies the change-gate.
- R07:P4 CalculationEvaluator negative-caches compile failures by source
hash (one Roslyn attempt + one Warning per source until redeploy); the
driver's script-log entry fires on the Good→Bad transition or a change of
reason, matching the once-per-transition Bad publish.
- R07:H8 array results dedup structurally.
- R07:L2 ShutdownAsync drops the compiled scripts (collectible ALCs).
- R07:U5 DraftValidator rule CalculationNoEffectiveTrigger: a tag with no
timer whose change trigger is off or whose script has no literal
ctx.GetTag read can never evaluate.
Refs #734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- ApiKeyOptionsValidator (ValidateOnStart on any driver/admin node): a blank or placeholder
Security:ApiKeys:Pepper fails host start instead of rejecting every key after a green boot (R03:2.3).
- JWT is finished and opt-in by key (R03:2.4): with Security:Jwt:SigningKey set, a Bearer scheme
(JwtBearerAuthenticationHandler over JwtTokenService.TryValidate / BuildValidationParameters, fail
closed) accepts the tokens /auth/token mints; the default scheme is a cookie-or-bearer policy scheme
and the fallback policy names it, so /api/* and every RequireAuthorization endpoint take a browser
session OR a machine token. JwtOptions are validated at start (JwtOptionsValidator). Without a key,
/auth/token is not mapped (404, not the former constructor 500) and no bearer scheme exists.
A direct AddJwtBearer needs Microsoft.AspNetCore.Authentication.JwtBearer in
Directory.Packages.props (not this lane's file) — the handler is a drop-in to swap.
- AuthenticationStateAuditActorAccessor is the registered IAuditActorAccessor: the Blazor circuit's
principal first, HttpContext as the fallback (R03:2.5). HttpAuditActorAccessor shares its resolver.
- CookieAuthenticationStateProvider (unregistered, fire-and-forget ping loop) is deleted (R03:1.5/2.5).
- /auth/login logs the LDAP exception at Warning before answering 503 (R03:2.7).
- Admin operations reply with a fixed message + correlation id instead of ex.Message (R03:4.1).
Refs #733
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- R05:1/12 ScriptedAlarmEngine: _valueCache is cleared in LoadAsync (it is
re-seeded for the referenced paths) so retired tags no longer accrete across
deploys; OnUpstreamChange no longer writes the cache after Dispose.
- R05:3 ScriptedAlarmEngine.Dispose drains in-flight work for at most 5 s
(DisposeDrainTimeout), then cancels it through a shutdown token every
DrainDirtyAsync/ShelvingCheckAsync now runs on, logs a Warning and gives
one second of grace — a stalled IAlarmStateStore.SaveAsync can no longer
hang host shutdown. A save that completes inside the bound is still drained
(positive control test).
- R05:6 ScriptedAlarmSource logs a throwing OnAlarmEvent subscriber at
Warning (naming the alarm) instead of swallowing it.
- R05:7 LocalDbStoreAndForwardSink keeps a cached dead-letter counter in step
with every dead-letter/revive/purge path and resyncs it with the queued
counter on the same cadence; GetStatus no longer runs a COUNT(*) scan.
- R05:9 ScriptLogRateLimiter (20 per source per minute, fixed window, one
summary entry naming the dropped count when the window rolls) behind
ScriptLogTopicSink (key = script|vtag|alarm) and ScriptLogCompanionSink
(key = script name).
Refs #734
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
- NodeManagerHistoryReadRawCapFuzzTests: 10k seeds (env OTOPCUA_PAGING_FUZZ_ITERATIONS)
through a real SDK node manager against wire-faithful fakes of SqlServer / QuestDB /
Gateway that enforce the backend half of the cap; random series with ties, random
windows (empty, on/past a tie, between samples, forward/reverse/end-only, bounds),
N in {0,1,2,small,huge}, cap in {off,3..1000}, tie budget {3,8,65536}. Pages must
concatenate to the cap-off one-shot answer (checked against the series), terminate
within values + 2 (+ one empty step per oversized boundary cluster), never exceed
the cap, never ask the backend for 0 / over-cap; refusals only past the budget.
- HistoryPaging.AdvertiseMaxReturnDataValues writes HistoryServerCapabilities/
MaxReturnDataValues (i=11273), read back through the SDK master node manager.
- MinMaxRawValuesPerRead raised to 3: at 2 a resumed page has no room (value + its
boundary tie + lookahead) and every value cost an empty page + CP (seed 15).
- RawPageLimit rows pin the default-cap arithmetic (9 999 first page, 9 998 resumed).
Fuzz findings recorded as follow-ups: a bounded read whose data fits one page
returns cap + 1 (end bound fitted against N, not the cap; node manager, F2);
the Gateway walk-back's cost on a sparse series under a tiny tie budget is
pre-existing (seed 320: 82 reads uncapped, 93 capped).
Refs #736
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Joseph Doherty