Postgres check replication status. 4 (older but still deployed in legacy environments). The monitoring information about subscription is visible in pg_stat_subscription. CloudNativePG (CNPG) is a Kubernetes operator that covers the full lifecycle of a highly available PostgreSQL database cluster with a primary/standby architecture, using native streaming replication. oc exec deploy/cp-serviceability -- /opt/bin/postgres_upgrade check-replication --token=$ (oc whoami -t) In this article, we have discussed how to configure PostgreSQL 12 Streaming Replication in CentOS 8 with detailed instructions on setting up both Master and Slave nodes. 0 and pgsql9. 5. Once your primary and standby servers are set up, it's essential to monitor the replication status and manage the replication process effectively. . 2). g. , MySQL, PostgreSQL, etc. This guide demonstrates how to deploy CloudNativePG with Feb 6, 2026 · To check the database master-slave replication status, you can use specific commands or tools depending on the database system you're using (e. 4 days ago · PostgreSQL high availability is a solved problem in 2026. 0 and 9. Streaming replication in PostgreSQL is a vital feature for ensuring data availability and redundancy. When monitoring replication delay and replication lag, look at the system view called pg_stat_replication. 2. 6 days ago · Configure PostgreSQL streaming replication on RHEL with a primary and standby server for real-time data replication and read scaling. Apr 13, 2017 · Can someone suggest the steps to check pgsql replication status and how to identify if the replication is not happening properly? We use streaming replication with pgsql9. 4 days ago · Introduction PostgreSQL is the most popular open-source relational database, and running it on Kubernetes requires careful orchestration. ). Sep 24, 2025 · 👉 Is there a way in PostgreSQL to check whether the logical replication has fully caught up or if it is still lagging/processing, so that we can hold the report generation until replication is done? Feb 26, 2026 · Because logical replication is based on a similar architecture as physical streaming replication, the monitoring on a publication node is similar to monitoring of a physical replication primary (see Section 26. Nov 21, 2025 · This guide will walk you through step-by-step methods to check replication status on both primary and standby servers, with specific attention to PostgreSQL 9. This information is essential for database administrators managing high-availability PostgreSQL setups who need to verify replication status, troubleshoot lag problems, or investigate failover readiness. Sep 18, 2024 · Check the Replication State: Use the pg_stat_replication view to verify the replication state and see if the standby is lagging (e. The Right Way to Handle Full pg_wal: 1️⃣ First, identify WHY WAL is accumulating: sql -- Check replication status SELECT * FROM pg_stat_replication; -- Check for abandoned replication slots Jul 26, 2017 · There are multiple ways of monitoring a working master-slave-replication on PostgreSQL servers. You can invoke pgmetrics pretty much like psql, with the same command-line options and environment variables. This guide covers everything from basic streaming replication to fully automated failover with Patroni, including the monitoring that makes any HA strategy actually work. Jul 9, 2025 · This dashboard monitors PostgreSQL streaming replication health, tracks lag between primary and replica nodes, and identifies replication issues. 4 The open-source tool pgmetrics can query Postgres servers and produce detailed reports, including for replication. , check write_lag, flush_lag, replay_lag). Monitor the status of data replication by using the following command. But choosing the right solution -- and more importantly, operating it correctly -- requires understanding the trade-offs. It contains all the information you’ll need to identify and diagnose replication problems. Jun 12, 2024 · Conclusion Monitoring PostgreSQL replication is essential for maintaining a robust and efficient database environment. By utilizing native Select statements, the check_postgres perl script, and understanding WAL internals, you can gain deep insights into your replication status and performance. 6 days ago · Learn how to build a high-availability PostgreSQL cluster on RHEL using Pacemaker, Corosync, and streaming replication to ensure automatic failover and minimal downtime. Mar 2, 2026 · Learn how to configure PostgreSQL Write-Ahead Log (WAL) on Ubuntu for better durability, replication, and point-in-time recovery. pmnn kctevx sona tuboi zdyrbr snqz dfjrra xla awyzp ickk