Grpc.Core doesn't reliably fire CancellationToken on client disconnect,
so Subscribe RPCs can hang forever and leak session subscriptions. Bridge
SessionManager scavenging to SubscriptionManager cleanup, and add a
30-second periodic session validity check in the Subscribe loop so stale
streams exit within 30s of session scavenge rather than hanging until
process restart.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
ReadAsync internally subscribes/unsubscribes the same ScanTime tag used
by the persistent probe, which was tearing down the probe subscription
and triggering false reconnects every ~5s. Guard UnsubscribeInternal and
stored subscription state so the probe tag is never removed by other
callers. Also removes DetailedHealthCheckService (redundant with the
persistent probe), adds per-instance config files (appsettings.v2.json,
appsettings.v2b.json) loaded via LMXPROXY_INSTANCE env var so deploys
no longer overwrite port settings.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The old probe did a subscribe-read-unsubscribe cycle every 5 seconds to
check connection health. This created unnecessary churn and didn't detect
the failure mode where long-lived subscriptions silently stop receiving
COM callbacks (e.g. stalled STA message pump). The new approach keeps a
persistent subscription on the health check tag and forces reconnect if
no value update arrives within a configurable threshold (ProbeStaleThresholdMs,
default 5s). Also adds STA message pump debug logging (5-min heartbeat with
message counters) and fixes log file path resolution for Windows services.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Multiple instances registering with the same name may cause MxAccess to
conflict on callback routing. ClientName is now configurable via
appsettings.json, defaulting to a GUID-suffixed name if not set.
Instances A and B use "LmxProxy-A" and "LmxProxy-B" respectively.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Replaced STA dispatch thread with Task.Run pattern for COM interop
- Fixed TypedValue oneof tracking with property-level _setCase field
- Added x-api-key DelegatingHandler for gRPC metadata authentication
- Fixed CheckApiKey RPC to validate request body key (not header)
- Integration tests: 15/17 pass (reads, subscribes, API keys, connections)
- 2 write tests pending (OnWriteComplete callback timing issue)
- v2 service deployed on windev port 50100
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Split LmxProxy Host and Client into a self-contained solution under lmxproxy/,
ported from the ScadaBridge monorepo with updated namespaces (ZB.MOM.WW.LmxProxy.*).
Client project (.NET 10) inlines Core/DataEngine dependencies and builds clean.
Host project (.NET Fx 4.8) retains ArchestrA.MXAccess for Windows deployment.
Added windev.md documenting the WW_DEV_VM development environment setup.
