- F10 [stability]: closeMetricsServer() now calls server.closeIdleConnections()
+ server.unref() after server.close(). server.close()'s callback doesn't fire
until keep-alive sockets drain, and the scraper (VictoriaMetrics/vmagent) holds
an idle keep-alive socket — so onModuleDestroy's awaited close would hang until
the scraper disconnects or the orchestrator SIGKILLs on the kill-grace window.
closeIdleConnections() drops idle keep-alive sockets so shutdown completes
immediately (Node 22, per the Dockerfile base).
- F9 [test]: client-telemetry.module.spec.ts pins the E1=B register() gate — the
core of the "public endpoint OFF by default" decision: flag unset / any non-
"true" value ("false"/""/"0"/…) → empty controllers+providers (route absent);
"true"/"TRUE" → registers VitalsController + VitalsService. A flag-inversion or
truthiness regression that reopened the anonymous disk-fill surface now fails.
- F11 [regression/perf]: the db_query_duration_seconds token work (firstSqlToken
regex + Set lookup) is now gated on isMetricsEnabled() in database.module.ts, so
a non-metrics deployment pays NOTHING per query (previously observeDbQuery
no-op'd but the token was still computed on every query). Also hoisted the
13-element known-token Set to a module const (KNOWN_SQL_TOKENS) so it's built
once, not per query.
Gate: server tsc 0; metrics + vitals + client-telemetry suites pass (incl. the
new register-gate test).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
agent_coder
5d8364bb5f