Models gain an optional bool? Writable (absent stays omitted; explicit false round-trips,
unknown keys preserved); the six editors gain a Writable checkbox (FOCAS disabled+read-only
hint). 9 model round-trip tests green. docker-dev /run verify of one editor deferred-live.
Findings 01/S-1 (AddressSpaceApplyOutcome failure field + apply.failed logging,
no optimistic success), 06/S-1 (Galaxy write fails closed -> BadCommunicationError
+ #5 revert, no knowingly-lost raw Write), 03/S4 (PrimaryGatePolicy default-deny
unknown-role-multi-driver on all gates + scripted-alarm emit gate). T13/T15 (2-node
live gates) deferred -- T15 is the behavior-affecting S4 live gate, must run in heavy
pass. Clean merge, build clean.
Deletes the composer's ExtractTagFullName/Alarm/Historize/Array statics and (co-located
to keep the build green, per plan T5) the three OpcUaServer.Tests ExtractTag* suites whose
tables now live in Commons.Tests/TagConfigIntentTests. T10 is the grep-sweep verification.
The DriverInstance.ResilienceConfig column was authored in AdminUI, persisted to the
entity, and serialized into the deployment artifact by ConfigComposer — but the runtime
read path dropped it: DriverInstanceSpec didn't carry it and the invoker factory always
passed null, so every driver got tier defaults regardless of its configured overrides
(a silent dead-config gap — #10's residual sub-finding).
Read-path plumbing (write side was already complete):
- DriverInstanceSpec gains ResilienceConfig; DeploymentArtifact.TryReadSpec reads the column.
- IDriverCapabilityInvokerFactory.Create takes resilienceConfigJson; DriverHostActor.SpawnChild
threads spec.ResilienceConfig; the concrete factory parses it (ParseOrDefaults, layering on the
tier), logs any parse diagnostic (never throws), and builds the invoker with the merged options.
- Invalidate-on-change: the pipeline cache keys on (instance, host, capability) and ignores options
on a hit, so Create() now Invalidate()s the instance's cached pipelines first (no-op on first
spawn) — a respawn with changed options rebuilds them.
- DriverSpawnPlanner treats a ResilienceConfig change as a stop+respawn (the invoker/options are
bound to the child at spawn); a pure DriverConfig change stays an in-place delta (no reconnect).
- Host DI passes a logger to the factory for the parse diagnostic.
Verification (deterministic): factory Create applies a retryCount:0 override to actual execution
(control test proves tier default retries), invalidates the instance's cache on re-create (scoped —
sibling survives), malformed config logs+falls-back; planner respawns on ResilienceConfig change
(incl null→json) and stays delta on a pure config change; artifact parse carries/omits the column.
Core.Tests 243 (+5), Runtime.Tests 363 (+5), Host builds clean.
Remediates RESILIENCE-DISPATCH-GAP (surfaced by the 07/C-1 analyzer): the Phase 6.1
CapabilityInvoker resilience pipeline (retry / breaker / bulkhead / telemetry) was
constructed only in tests — the production dispatch layer called driver-capability
methods directly, bypassing it entirely.
The filed plan (thread CapabilityInvoker directly into DriverInstanceActor) is
INFEASIBLE: Runtime is deliberately Polly-free (references Core.Abstractions, not
Core — the same boundary IDriverFactory documents). So this introduces a seam,
mirroring IDriverFactory exactly:
- Core.Abstractions: IDriverCapabilityInvoker (+ NullDriverCapabilityInvoker
pass-through) and IDriverCapabilityInvokerFactory (+ null factory).
- Core: CapabilityInvoker now implements the interface; new
DriverCapabilityInvokerFactory builds a per-instance invoker over the
process-singleton pipeline builder + status tracker + tier resolver.
- Runtime: DriverInstanceActor takes an IDriverCapabilityInvoker (default =
pass-through) and routes all 6 dispatch sites (write, alarm-ack, subscribe,
unsubscribe, alarm-subscribe, discover) through it; per-host key resolved via
IPerCallHostResolver for single-ref calls, driver-instance key for bulk calls.
DriverHostActor builds + injects the real invoker per spawned driver.
- Host: DriverFactoryBootstrap registers the tracker, pipeline builder, and
concrete factory (needs DriverFactoryRegistry.GetTier). Runtime SCE resolves the
factory from DI like IDriverFactory; pass-through on nodes without it bound.
- Analyzer: IDriverCapabilityInvoker.ExecuteAsync/ExecuteWriteAsync are now
recognized wrapper homes (interface-typed invoker calls must suppress OTOPCUA0001
too). All 6 RESILIENCE-DISPATCH-GAP pragmas removed — the analyzer (an error in
Runtime) is now the standing regression guard.
Also adds retry / breaker-open / breaker-close LOGGING to the pipeline builder —
the operator-facing observability surface (the Admin /hosts reader, Phase 6.1
Stream E.2/E.3, was never built, so the pipeline otherwise runs silently).
Scope notes:
- Tier-DEFAULT policy only: DriverInstanceSpec (the deploy artifact) does not carry
the per-instance ResilienceConfig JSON, so overrides aren't applied yet (tracked
follow-up: plumb ResilienceConfig through the composer/artifact).
- GenericDriverNodeManager's call is NOT wired: that class is test-only scaffolding
(zero production references — the Server has its own address-space path); its
pragma is re-annotated accordingly, not left as a "tracked gap".
Verification (unit + analyzer; live behavioral gate still pending — see FOLLOWUP-10):
- Negative control: unwrapping any site fails the Runtime build with OTOPCUA0001.
- New Runtime guard (recording invoker): write routes via ExecuteWriteAsync with the
IPerCallHostResolver host; subscribe via ExecuteAsync — proves runtime routing.
- New analyzer test: the interface is a valid wrapper home.
- New pipeline-builder test: retry events are logged.
- Full solution builds clean (0 errors); Runtime.Tests 357, Core.Tests 238,
Analyzers.Tests 32 all green; pass-through default keeps existing dispatch tests
byte-for-byte unchanged.
Inject the custom UnwrappedCapabilityCallAnalyzer as an OutputItemType=Analyzer
ProjectReference from Directory.Build.props (excluding the analyzer + its test
project) so OTOPCUA0001 runs on every src/ and tests/ compilation — it previously
enforced its CapabilityInvoker-wrapping rule against nothing but its own 31 unit
tests (the 'built-but-never-wired' failure mode).
Triage of the ~280 surfaced hits, three categories:
1. RESILIENCE-DISPATCH-GAP (7 sites, DriverInstanceActor x6 + GenericDriverNodeManager
x1): a REAL, previously-untracked gap the analyzer caught on first wiring — the
Phase 6.1 CapabilityInvoker resilience pipeline (retry/breaker/bulkhead/telemetry)
is constructed ONLY in tests and was never wired into the production dispatch
layer. Scoped per-site #pragma with a greppable RESILIENCE-DISPATCH-GAP marker
explicitly noting these are tracked-but-not-intentional, pending the dispatch-wiring
remediation (filed as a follow-up). Keeps the analyzer live everywhere else in
those projects so a NEW unwrapped call still fails the build.
2. Driver-INTERNAL self-calls (3 sites, AbCipAlarmProjection x2 + S7Driver x1):
a driver's own poll/ack path calling its own capability method. The invoker wraps
the driver from the dispatch layer OUTWARD; a driver re-wrapping its own internal
calls would double-wrap. Genuinely intentional — scoped #pragma with that rationale.
3. Wire-level test suites + manual-testing CLIs (12 projects): invoke drivers directly
by design — the analyzer's own documented intentional case. Project-level NoWarn
with a comment.
Verified: full solution build green, 0 OTOPCUA0001 hits; analyzer's 31 tests pass;
negative control — dropping one dispatch-gap pragma re-fires OTOPCUA0001 and fails
the Runtime build, proving the analyzer is genuinely live tree-wide, not disabled.
U2 (Critical): RoslynVirtualTagEvaluator ran scripts with a CancellationToken
that a synchronous Roslyn script can never observe, so one CPU-bound/infinite-
loop virtual-tag script hung the owning VirtualTagActor forever (no timeout, no
recovery). Route evaluation through the existing TimedScriptEvaluator (Task.Run
+ WaitAsync) so the wall-clock budget is real; a runaway script now returns Bad
within the timeout instead of wedging the actor.
U3 (High): the live path cached evaluators in a raw ConcurrentDictionary never
cleared on republish, leaking a collectible AssemblyLoadContext per edited
script forever. Swap in the purpose-built CompiledScriptCache (Lazy single-
compile, dispose-on-Clear) and add an apply-boundary clear: a new narrow
IScriptCacheOwner seam the VirtualTagHostActor calls on each ApplyVirtualTags
generation (mirrors ScriptedAlarmEngine's per-generation clear).
Tests: infinite-loop-fails-within-timeout (bounded by WaitAsync so a regression
fails instead of hanging), happy-path-after-wrapping, ClearCompiledScripts-
empties-cache, and a host-actor wiring guard asserting each apply generation
calls ClearCompiledScripts (theme #1 production-caller assertion). Host.Integration
VT suite 18/18, Runtime VT suite 12/12.
Adds <summary>/<param>/<returns>/<inheritdoc> where missing and removes
project bookkeeping IDs (task/tracking refs) from shipped code comments,
so the docs read cleanly and CommentChecker is quiet except for known
false positives (PLC/protocol terms, event/IEqualityComparer inheritdoc).
Doc/comment-only; no logic changed; solution builds clean.
PR #423 shipped GatewayTagProvisioner + unit tests but never registered it in
DI nor passed it into the AddressSpaceApplier, so deploying historized tags used
the no-op NullHistorianProvisioning and never called the gateway's EnsureTags
(confirmed live on wonder-app-vd03: zero EnsureTags calls on a historized deploy).
Addresses HISTORIAN-GATEWAY-INTEGRATION-ISSUES.md.
Issue 1 (wire provisioner):
- Runtime: AddHistorianProvisioning extension (gated on ServerHistorian:Enabled,
mirrors AddServerHistorian) + NullHistorianProvisioning TryAdd default in
AddOtOpcUaRuntime; WithOtOpcUaRuntimeActors resolves IHistorianProvisioning and
passes it into the applier.
- Gateway driver: GatewayHistorian.CreateProvisioner factory (mirrors CreateDataSource).
- Host: Program.cs calls AddHistorianProvisioning after AddServerHistorian.
- Tests: AddHistorianProvisioningTests (config-gated registration + the
register->resolve->applier->EnsureTags chain).
Issue 2 (observability): AddressSpaceApplier logs the provisioning tally on every
successful dispatch (was gated behind Failed/Skipped > 0), including dispatched=N
so a dispatched=N/requested=0 line flags the dormant no-op. +2 tests.
Issue 3 (30s HistoryRead on unprovisioned tags): root coupling fixed by Issue 1;
documented the CallTimeout knob + coupling. Default left at 30s pending the
multi-data-point investigation the issue requests (lowering risks truncating
legitimate large reads).
Issue 4 (docs): docs/Historian.md gains a "Tag auto-provisioning (EnsureTags)"
section and CLAUDE.md a wiring/gating note (both stress ServerHistorian:Enabled).
Sibling scadaproj/CLAUDE.md carries no false claim -> unchanged.
Pre-existing Serilog observation: anchor CWD to AppContext.BaseDirectory before
AddZbSerilog so the relative file sink stops landing in C:\Windows\System32 under
the Windows-service CWD.
Builds 0-error; Runtime.Tests 355, OpcUaServer.Tests 329, Gateway.Tests 99 (+4
live-skipped) all green.
Code review found a residual silent-data-loss path: a single driver ref (mux
ref) can back SEVERAL historized equipment tags via aliasing (identical machines
sharing a register — DriverHostActor._nodeIdByDriverRef is a HashSet), each with
its own HistorianTagname. The muxRef->single-name map collapsed last-wins, so
under alias + divergent overrides only one historian tag got the value and the
rest were silently dropped — the exact failure class FU-3 exists to eliminate.
Model the fan as muxRef -> HashSet<historianName> and append ONE outbox entry per
name in OnValueChangedAsync (a per-name append failure drops only that name and
continues). Convergence removes/adds each (muxRef, name) pair individually from
the per-ref set, dropping the mux key only when its last name is removed — so
removing one alias leaves the shared ref fanning for the others with no mux churn.
Tests: aliased-refs-each-get-the-value (one fan → both historian names written),
removing-one-alias-keeps-the-ref-registered, and the override-rename test now
feeds a value post-rename to prove the write target actually moved to the new
name. Runtime 350/0, OpcUaServer 327/0; 0 warnings.
Claude-Session: https://claude.ai/code/session_012SDSQ3AcaXqPcBtDESBRii
Joseph Doherty