## Summary
On a busy webapp the trace/log/metric ingestion path emits several
`info` logs per insert batch, which makes up the bulk of the service's
log output. This moves that per-batch chatter to `debug` and adds an
opt-in to drop successful HTTP access logs, cutting log volume with no
loss of error signal.
## Details
The per-batch ClickHouse insert logs, the flush scheduler's concurrency
adjustments, and the event-loop utilization sample (already exported as
a metric, so the log line was redundant) now log at `debug`. Error and
warning logs are untouched.
New `HTTP_ACCESS_LOG_DISABLED=1` env var: when set, the HTTP access
logger skips successful (2xx) requests while still logging non-2xx
responses. Defaults off, so existing deployments are unchanged.
Add colored console warnings when the event loop is blocked and wire
a feature flag to enable/disable notifications- Introduce
notifyEventLoopBlocked() in eventLoopMonitor.server.ts to
log a colored warning with blocked and async type.
- Call notifyEventLoopBlocked() when an event-loop stall is detected.
- Add EVENT_LOOP_MONITOR_NOTIFY_ENABLED to env schema with a default of
"0" so notifications are off by default.
- Will notify when over the `EVENT_LOOP_MONITOR_THRESHOLD_MS` env var
This makes it easier to spot long event-loop stalls during development
or when notifications are explicitly enabled.
<img width="840" height="132" alt="CleanShot 2026-01-07 at 15 03 24@2x"
src="https://github.com/user-attachments/assets/be20fa6a-be2b-46a1-aa89-d0913ed8b5b3"
/>
* feat(webapp): add support for running web services (api, engine, webapp) in cluster mode for better perf
* cleaned up signal handling and resolved some valid 🐇 issues
Eric Allam