1:postgresql14-server-14.2-1PGDG.rh### [100%] [root@]#rpm -ivh postgresql14-contrib-14.2-1PGDG.rhel7.x86_64.rpmwarning: postgresql14-contrib-14.2-1PGDG.rhel7.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 442df0f8: NOKEY Preparing... ### [100%] Updating / installing... 1:...
What is PostgreSQL streaming replication? PostgreSQL streaming replication is a process that replicates data from a primary PostgreSQL database to one or more standby databases in real-time, ensuring that these standby databases mirror the primary database accurately. This replication method ensures high...
Replication lag in PostgreSQL occurs when changes made on the primary server take time to reflect on the replica server. Whether you use streaming or logical replication, lag can impact performance, consistency, and system availability. This post covers the types of replication, their differences, l...
Tablespace replication conflicts:A tablespace is intemp_tablespaceson the standby server, and a query has temporary files there. When aDROP TABLESPACEoccurs from the primary, we get a conflict. PostgreSQL cancels all queries on the standby in that case. ...
PostgreSQL Replication Features in 9.0 Core - 2ndQuadrantndQuadrant Limited
When not using the WAL archive or PostgreSQL replication slots (explained below), streaming replicas can lose their synchronization with the primary and, from that point, cannot resume. When that happens, self-healing is impossible, and manual intervention in re-cloning is required. For this reaso...
Typically, data replication in PostgreSQL is done between an active (primary) database and one or more standby databases. While this is usually enough for ma...
done server stopped # Delete both databases $ rm -rf testdb1 testdb2 logfile1 logfile2 # Recreate both databases $ ./build/bin/initdb testdb1 $ ./build/bin/initdb testdb2 $ printf 'port = 6002\nwal_level = logical' >> testdb2/postgresql.conf $ printf 'port = 6001\nwal_level = ...
Aurora PostgreSQL DB clusters support Aurora Replicas in different AWS Regions, using Aurora global database. For more information, seeUsing Amazon Aurora Global Database. Note With the read availability feature, if you want to reboot the Aurora Replicas in the DB cluster, you have to perform it...
PostgreSQL has some building blocks for replication monitoring, and the following are some important functions and views which can be use for monitoring the replication: 1. pg_stat_replication view on master/primary server. This view helps in monitoring the standby on Master. It gives you the fo...