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Merge handoff-sendevent-persistence: record SendEvent gRPC persistence finding

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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B6mcaT2PjRFKcogzp9UkfC
This commit is contained in:
Joseph Doherty
2026-06-23 17:36:36 -04:00
parent 32d508eed4 f2c442bbaf
commit 7d8be48d89
1 changed files with 9 additions and 3 deletions
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docs/reverse-engineering/handoff.md
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@@ -87,6 +87,12 @@ reuses the proven 2020 WCF byte serializers/parsers unchanged inside protobuf
server (markers `SdkSendProbe`/`SdkCaptureProbe` confirmed in returned rows). Golden-tested
(`GrpcEventSendProtocolTests`) + gated live test (`SendEventAsync_OverGrpc_AcceptsEvent`,
opt-in `HISTORIAN_GRPC_EVENT_SEND=1`).
**PERSISTENCE RESOLVED:** the earlier WCF/M2 caveat was "server accepts AddS2 but the local
dev box does NOT persist the event to `v_AlarmEventHistory2`" — we couldn't tell if that was an
SDK gap or the environment. The gRPC read-back against the live 2023 R2 server **proves the event
persists** (sent via the pure-managed SDK, then independently read back from the server's event
history). So non-persistence on the local box was purely the dev-box event-ingestion environment,
**not an SDK gap** — the event-send path (WCF and gRPC, same "OS" buffer) is durably correct.
4. **ExecuteSqlCommand over gRPC** — **server-walled** (`CSrvDbConnection`;
RegisterTags prime doesn't help). Use WCF for SQL.
5. **R4.2 revision EDITS** — storage-engine-pipe-only on BOTH transports (the D2 wall).
@@ -108,9 +114,9 @@ reuses the proven 2020 WCF byte serializers/parsers unchanged inside protobuf
To move any remaining item you need a **server-side / connection-level angle**
(item 1 — v8 event auth is solved; row retrieval is connection-gated, see the
NEXT SESSION section of `grpc-event-query-capture.md`), a **fresh native capture**
(SendEvent gRPC framing — item 3), a **different server** (SF-active for item 2),
or a **demand signal** to unlock a deferred item.
NEXT SESSION section of `grpc-event-query-capture.md`), a **different server**
(SF-active for item 2), or a **demand signal** to unlock a deferred item.
(SendEvent over gRPC — formerly item 3 — is now SHIPPED + live-validated.)
Live-server gRPC probe recipe: set
`HISTORIAN_GRPC_HOST`/`_PORT 32565`/`_TLS true`/`_DNSID` + domain creds (strip
quotes — `reference_wonder_sql_vd03_credentials`) and run the gated