Pg_stat_activity

PostgreSQL Lock Troubleshooting: Unlocking Blocked Processes In a busy PostgreSQL environment, transactions can sometimes become blocked, waiting for other transactions to release locks. This can slow performance and even cause stalls. This article dissects a powerful PostgreSQL script designed to expose blocked …

Identify Idle PostgreSQL Connections: Keep Your Database Clean A session in state idle since 09:14 is a client that connected, finished its work and never hung up. pg_stat_activity has one row per server process, and its state and state_change columns list every session like it. A short query against that view lists …

Identifying Blocking PostgreSQL Queries: A Guide for Database Administrators This article explores a PostgreSQL query designed to identify currently blocked database queries and the processes (identified by PIDs) responsible for blocking them. This information is crucial for database administrators troubleshooting …

Monitoring Active Queries in PostgreSQL for Performance Optimization Introduction Ensuring smooth database performance is crucial for modern applications. In PostgreSQL, the number of active queries can significantly impact responsiveness. This article explores a PostgreSQL query that effectively counts active queries, …

Identifying Blocking Queries in PostgreSQL: Keeping Your Database Running Smoothly Have you ever encountered sluggish performance in your PostgreSQL database? One culprit could be blocking queries. These are queries that are waiting on resources held by other queries, creating a chain reaction that slows everything …

How Many Connections Can Your PostgreSQL Database Handle? PostgreSQL 16 split the connection limit into more than one pool. Besides the slots held back for superusers, a second block of slots can now be reserved for ordinary roles that have been granted pg_use_reserved_connections. The number of sessions an application …