efiten 981664528e perf(server): serve stale repeater enrich cache instead of inline rebuild (#1272) (#1436) ...

## Summary

- Removes the TTL-based inline rebuild from `GetRepeaterRelayInfoMap`
and `GetRepeaterUsefulnessScoreMap`
- When the cache is non-nil it is returned immediately, regardless of
age — no more 700ms on-request recompute
- Inline compute is retained only as a nil-cache guard (edge case: tests
without a running recomputer)
- Fixes the stale `// 15s-TTL gate` comment in
`recomputeRepeaterEnrichmentSafe`

**Root cause:** `computeRepeaterRelayInfoMap` runs inline when the TTL
expires, taking ~700ms on a busy instance.
`StartRepeaterEnrichmentRecomputer` (introduced in #1262) already keeps
the cache warm via synchronous prewarm at startup + 5-min ticks, making
the inline path dead code that fires only when the TTL is shorter than
the recomputer interval (e.g. custom `analytics.defaultIntervalSeconds >
600`).

## Test plan

- [ ] `TestGetRepeaterRelayInfoMap_ServesStaleOnTTLExpiry` — regression
guard: stale sentinel is returned without recompute
- [ ] `TestGetRepeaterUsefulnessScoreMap_ServesStaleOnTTLExpiry` — same
for usefulness score map
- [ ] `TestGetRepeaterRelayInfoMap_BuildsWhenNil` — nil-cache fallback
still works
- [ ] Full `-short` suite passes (`go test -short ./...`)

Closes #1272

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-28 15:01:58 -07:00

..

decrypt

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

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

ingestor

fix(ingestor): add hourly WAL checkpoint to prevent unbounded WAL growth (#1435)

2026-05-28 15:01:54 -07:00

migrate

refactor(db): finish #1283 — Option 4: ingestor owns neighbor-graph + schema migrations; server is read-only (fixes #1287) (#1289)

2026-05-19 23:53:41 -07:00

server

perf(server): serve stale repeater enrich cache instead of inline rebuild (#1272) (#1436)

2026-05-28 15:01:58 -07:00