Luke Berndt 6825aaf9a4 Reduce backend per-upload CPU to relieve upload timeouts ...

The Node main thread was saturated at about 39 uploads/s, overflowing the
listen queue so uploads timed out connecting from nginx.

- Enable keepAlive on the S3 agent; every upload did a full TLS handshake
- Remove OpenTelemetry tracing
- Cache the system key lookup for 60s
- Use lean queries when listing calls
- Serialize each call once in notify_clients, not per recipient
- Add an nginx upstream keepalive pool, and hold Node's keepAliveTimeout
  above it so nginx never reuses a connection Node has closed

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-11-09 18:06:48 -05:00

..

honeycomb-tracing.js

back to honeycomb tracing and high sample

2024-08-21 22:10:15 -04:00