Kpa-clawbot 4cd8445233 perf(#1265): wire /api/observers/clock-skew + /api/nodes/clock-skew into analytics recomputer (#1266) ...

RED: 97f49a0c · CI:
https://github.com/Kpa-clawbot/CoreScope/actions/runs/26046530920

Fixes #1265.

## Problem
On staging two clock-skew endpoints serve compute-on-request:

- `/api/observers/clock-skew` — 3.3s
- `/api/nodes/clock-skew` — 8.9s

Both drive a full `clockSkew.Recompute` over 100k+ adverts while holding
`s.mu.RLock`, blocking under concurrent reader load.

## Fix
Wire both endpoints into the established `analytics_recomputer.go`
pattern (PRs #1248 / #1259 / #1263). Two new slots:

- `recompObserversClockSkew` — wraps `computeObserverCalibrations()`
- `recompNodesClockSkew` — wraps `computeFleetClockSkew()`

Accessors `GetObserverCalibrations` / `GetFleetClockSkew` now prefer the
atomic-pointer snapshot; on-request compute is fallback-only for the
brief window before initial sync compute lands (and for tests that skip
the recomputer).

Default interval **300s**, overridable via:

```json
"analytics": {
  "recomputeIntervalSeconds": {
    "observersClockSkew": 300,
    "nodesClockSkew": 300
  }
}
```

`config.example.json` + the `_comment_analytics` doc updated.

## TDD
- RED `97f49a0c` — `TestClockSkewRecomputersRegistered` +
`TestClockSkewHandlersSteadyStateLatency` (8 concurrent readers × 25
reqs per endpoint, p99 < 100ms gate). Fails on master: recomputer slots
nil.
- GREEN `19599375` — wire + accessor switch. p99 well under 5ms on the
test fixture.

## Verification
```
cd cmd/server && go test ./... -count=1   # ok 42s
bash ~/.openclaw/skills/pr-preflight/scripts/run-all.sh origin/master   # all gates pass
```

---------

Co-authored-by: CoreScope Bot <bot@corescope.local>

2026-05-18 12:27:44 -07:00

..

decrypt

feat: CLI tool to decrypt and export hashtag channel messages (#724)

2026-04-12 22:07:41 -07:00

ingestor

fix(#1212): MQTT per-attempt logging + stall watchdog — prevent silent reconnect-loop death (#1216)

2026-05-15 22:46:29 -07:00

server

perf(#1265): wire /api/observers/clock-skew + /api/nodes/clock-skew into analytics recomputer (#1266)

2026-05-18 12:27:44 -07:00