1
Postgres LISTEN/NOTIFY does not scale
Learn why Postgres LISTEN/NOTIFY doesn't scale for high-throughput use cases and what architectural alternatives Recall.ai uses in production.
Recall.ai Blog
Get transcripts, recordings, and metadata from Zoom, Google Meet, Teams, and more. Meeting Bot API, Desktop SDK, and Calendar API with 99.9% SLA.
- Popular posts
- 3
- Total points
- 1,065
- HN comments
- 643
- Rank
- #1,215 company
Visit recall.ai → On Hacker News Nov 2024 – Feb 2026
Systems & Performance 2Databases & Data 2Infrastructure & DevOps 1Tech Industry & Business 1
2
WebSockets cost us $1M on our AWS bill
Learn how WebSockets caused Recall.ai's AWS bill to spike $1M and what architectural changes the team made to lower the cost.
3
Postgres Postmaster does not scale
Why Postgres postmaster contention becomes a bottleneck at scale, how connection bursts and worker churn trigger it, and which fixes helped in production.