{
  "id": 8355051,
  "title": "PostgreSQL LISTEN/NOTIFY Queue Full: A 512 KiB Reproduction",
  "url": "https://urgent.news/2026/09/19/postgresql-listen-notify-queue-full-a-512-kib-reproduction",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-19T01:46:01.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/bodanthebackend/postgresql-listennotify-queue-full-a-512-kib-reproduction-43g0"
  },
  "original_language": "en",
  "account": null,
  "summary": "What causes PostgreSQL to report: ERROR: too many notifications in the NOTIFY queue I reproduced it with PostgreSQL 17, Docker, and two psql sessions. Instead of trying to fill PostgreSQL's default multi-gigabyte queue, I started the server with: max_notify_queue_pages=64 With 8 KiB pages, that gave the experiment a queue capacity of only 512 KiB . The listener did this: LISTEN demo ; BEGIN ; and…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}