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docs: Health 0.2.1 active-tier fix — index row + Phase 4 ledger

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Joseph Doherty
2026-07-24 11:31:31 -04:00
parent af1e0a86b2
commit 280e57896b
2 changed files with 5 additions and 3 deletions
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CLAUDE.md
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@@ -143,7 +143,7 @@ each project's **code-verified current state**, and the **gaps** between. See
|---|---|---|---|---|
| Auth (login / identity / authz) | Adopted (lib `0.1.4`; all 3 apps, merged to **local default** main/master + **pushed to origin** (gitea)) | Shared `ZB.MOM.WW.Auth` lib | [`components/auth/`](components/auth/) | [`ZB.MOM.WW.Auth/`](ZB.MOM.WW.Auth/) |
| UI Theme (layout / tokens / components) | Adopted (feed `0.2.0`–`0.3.1`; **all 4 apps pinned `0.3.1`**, pushed to origin) | Shared `ZB.MOM.WW.Theme` RCL | [`components/ui-theme/`](components/ui-theme/) | [`ZB.MOM.WW.Theme/`](ZB.MOM.WW.Theme/) |
| Health (readiness / liveness / active-node) | **Adopted** (lib `0.1.0`, on the feed; **all 4 apps** reference it + wire `MapZbHealth` — verified 2026-07-18; the prior "not yet adopted" claim was stale) | Shared `ZB.MOM.WW.Health` lib | [`components/health/`](components/health/) | [`ZB.MOM.WW.Health/`](ZB.MOM.WW.Health/) |
| Health (readiness / liveness / active-node) | **Adopted** (feed carries `0.1.0`/`0.2.0`/`0.2.1`; **all 4 apps** reference it + wire `MapZbHealth`). **`0.2.0` (2026-07-24)** added an optional per-entry `data` object to the canonical health JSON and made `AkkaClusterHealthCheck` publish its cluster view (`leader`/`selfAddress`/`selfRoles`/`memberCount`/`unreachableCount`) — additive, so pre-0.2.0 payloads still parse. **`0.2.1` (2026-07-24) is a behaviour fix with a live consumer impact:** the active tier now returns **Unhealthy (503)** on a role-member-but-not-leader node instead of `Degraded`, which the spec maps to 200. The old value made `/health/active` answer 200 on *every* node, so it could not distinguish active from standby over HTTP at all — and OtOpcUa's Traefik routes the admin UI by exactly this probe, so its leader-pinning had silently never worked ([`lmxopcua#494`](https://gitea.dohertylan.com/dohertj2/lmxopcua/issues/494)). **Only OtOpcUa is affected** — it is the sole user of the role-filtered mode; ScadaBridge deliberately uses its own `OldestNodeActiveHealthCheck` (leadership is address-ordered and diverges from the singleton host), and mxgw/HistorianGateway have no Akka cluster. | Shared `ZB.MOM.WW.Health` lib | [`components/health/`](components/health/) | [`ZB.MOM.WW.Health/`](ZB.MOM.WW.Health/) |
| Observability (metrics / traces / logs) | **Adopted** (libs `0.1.0`, on the feed; **all 4 apps** call `AddZbTelemetry`; `AddZbSerilog` in all but ScadaBridge, which keeps its own factory by design) | Shared `ZB.MOM.WW.Telemetry` lib + `.Serilog` | [`components/observability/`](components/observability/) | [`ZB.MOM.WW.Telemetry/`](ZB.MOM.WW.Telemetry/) |
| Config + validation (options / startup validation) | Adopted (lib `0.1.0`, on the feed; **all 4 apps**, pushed — the "local only / not yet pushed" caveat was stale) | Shared `ZB.MOM.WW.Configuration` lib | [`components/configuration/`](components/configuration/) | [`ZB.MOM.WW.Configuration/`](ZB.MOM.WW.Configuration/) |
| Audit (event model + writer seam) | Adopted (lib `0.1.0`, on the feed; **all 4 apps**, pushed to origin) | Shared `ZB.MOM.WW.Audit` lib | [`components/audit/`](components/audit/) | [`ZB.MOM.WW.Audit/`](ZB.MOM.WW.Audit/) |