skip-locked

A verified .NET 8 reference for DB↔messaging reliability boundaries — transactional outbox, idempotent inbox, SKIP LOCKED multi-worker safety, dead-letter reprocessing — with a deterministic stale-failure write-race case study.

PostgreSQL-backed distributed task scheduler for Node.js

Signed, retried, logged webhooks from the Postgres you already run. Standard Webhooks, transactional outbox, retries, replay. TypeScript, MIT.

PHP + MySQL veritabanı tabanlı iş kuyruğu: FOR UPDATE SKIP LOCKED ile yarışsız rezervasyon, üstel geri çekilme, görünürlük zaman aşımı, dead-letter kuyruğu ve CLI worker — Redis/RabbitMQ olmadan

A PostgreSQL-native distributed job scheduler and processing engine supporting exactly-once execution, delayed jobs, retries, dead-letter queues, LISTEN/NOTIFY-based worker coordination, and horizontal scaling.

Lightweight transactional outbox and retry toolkit for Spring Boot. Enqueue background tasks in the same DB transaction as your business change, process them with retries, backoff and SKIP LOCKED claiming on plain PostgreSQL — no broker required.

Multi-tenant job orchestrator template - Next.js 16 + Drizzle + Auth.js v5 web admin, Python 3.12 worker, PostgreSQL job queue with SELECT FOR UPDATE SKIP LOCKED, Redis pubsub wakeup.

A self-hosted job fleet on the database you already run (Postgres or SQLite): DAG workflows, crash-safe leases, GPU warm-model routing and LLM server management. No broker, no Kubernetes.

🐘 Durable distributed job queue for PostgreSQL & Supabase. SKIP LOCKED, atomic leases, crash recovery, deduplication, zero Redis.

Background job queue on PostgreSQL: SKIP LOCKED claiming, retries with backoff, leases, LISTEN/NOTIFY, cron, transactional enqueue, admin dashboard and Prometheus metrics

Distributed concurrency system engineered for 100,000+ requests with zero double-bookings. Built with C# .NET 8 Minimal API, Redis Streams, Redlock distributed locking, PostgreSQL row-level pessimistic locking (SKIP LOCKED), SignalR telemetry, and a brutalist React admin console.

A practical showcase comparing Redis distributed locks and MySQL SKIP LOCKED functionality for handling concurrent job queues. Includes simulation endpoints to observe race conditions, lock contention, and the impact of double-checked locking in distributed systems.

Background jobs and step workflows for Bun and Postgres

A marketplace where every unit is one of a kind: no quantity column, a buy box that is not the cheapest, and reservations that cannot double sell

From-scratch distributed job queue & workflow engine on Postgres: SELECT FOR UPDATE SKIP LOCKED claiming, retries with backoff, heartbeat crash-recovery, and DAG workflows. Python.

Multi-tenant lead-enrichment SaaS proof-of-work: Next.js dashboard and a TypeScript worker fully decoupled over a Postgres SKIP LOCKED job queue.

Durable delayed jobs in Postgres. Schedule work months ahead as rows you can query, cancel, and run with SKIP LOCKED.

Async backend service that checks PV connection requests against low-voltage grids with pandapower.

Distributed agent task queue: Postgres-backed pull queue (FIFO + capability filter + concurrency, no scoring) with a live mission-control dispatch console. One-command docker compose.

Measured transactional-outbox comparison: PostgreSQL SKIP LOCKED, LISTEN/NOTIFY, commit horizon, logical decoding vs Oracle SKIP LOCKED and Advanced Queuing