Diagnosing and Resolving Lock Contention in PostgreSQL

📰 Dev.to · Philip McClarence

Learn to diagnose and resolve lock contention in PostgreSQL to prevent slow queries from blocking your entire database

intermediate Published 26 Feb 2026
Action Steps
  1. Run 'pg_locks' to view current locks on your database
  2. Use 'pg_stat_activity' to identify slow queries causing contention
  3. Apply 'LOCK TABLE' statements to manually lock tables and resolve contention
  4. Configure 'deadlock_timeout' to automatically resolve deadlocks
  5. Test your database under load to identify potential lock contention issues
Who Needs to Know This

Database administrators and developers who work with PostgreSQL can benefit from this knowledge to improve database performance and prevent downtime

Key Insight

💡 Lock contention can be caused by slow queries and can be resolved by identifying and optimizing those queries

Share This
🚨 Don't let slow queries block your PostgreSQL database! Learn to diagnose and resolve lock contention 🚀

Key Takeaways

Learn to diagnose and resolve lock contention in PostgreSQL to prevent slow queries from blocking your entire database

Full Article

Why One Slow Query Can Block Your Entire PostgreSQL Database You're running a healthy...
Read full article → ← Back to Reads