implementation d’une hashchain in sqlite

The Unreasonable Effectiveness of SKIP LOCKED in PostgreSQL

Using SKIP LOCKED to distribute work across machines in a distributed system is a popular pattern. We explore why, the alternatives, and a real world example from our own codebase.
Nadeesha Cabral on 17-12-2024

When building distributed systems that need to process jobs or tasks concurrently, one of the most challenging problems is ensuring that work is distributed efficiently without duplication. PostgreSQL's SELECT FOR UPDATE SKIP LOCKED feature provides an elegant and performant solution to this problem that almost feels too good to be true. We're big believers in the just use postgres ethos, as our source code might tell you.