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At a high level PostgreSQL supports two main types of replication - streaming/physical and logical ... You can read more about logical replication basics in Data To Go: Postgres Logical Replication.
PostgreSQL: Documentation: 17: 52.19. pg_replication_slots
Logical replication does the same thing as physical replication slots and are used for logical replication. However, they are used for logical decoding.
How Patroni Addresses the Problem of the Logical ...
Setting up Replication slots for standby database.
Giới thiệu về chức năng Replication(đồng bộ dữ liệu) của ...
If max_slot_wal_keep_size is -1 (the default), replication slots may retain an unlimited amount of WAL files. Otherwise, if restart_lsn of a replication slot ...
Postgres Release Notes - All Versions - bucardo.org
pg.max_slot_wal_keep_size** Maximum WAL size in megabytes reserved for replication slots. The default value is -1, meaning unlimited.
Working with PostgreSQL Replication Slots: Simplified Guide
Once the bot is running, it will automatically check the size of the PostgreSQL replication slots at the defined interval.
PostGreSQL Error "remaining connection slots are r...
Database Error: remaining connection slots are reserved for non-replication superuser connections.
Documentation: 16: 54.19. pg_replication_slots
Back in the days when “Replication Slots” were not yet introduced, managing the WAL segments were a challenge. In standard streaming replication, the primary has no knowledge of the replica status.
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Avoid data loss and replication lag with PostgreSQL Replication Slots—a built-in mechanism that ensures WAL logs are retained until replicas have consumed them.
PostgreSQL and SRE : Backup Solution | by Nitigya Sharma | Medium
Note: Barman 2.0 introduced support for replication slots with PostgreSQL servers 9.4 or above, therefore allowing WAL streaming-only configurations.
Using PostgreSQL Replication Slots | Severalnines
There are two kinds of replication slots in PostgreSQL - physical (for physical replication) and logical (for logical replication).
PostgreSQL Replication Status Test
This tutorial assumes you have already setup 1) streaming replication between a primary and a replica PostgreSQL database cluster, and 2) are using replication slots.
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How to Set Up PostgreSQL Streaming Replication
This is the most common type of replication in PostgreSQL. Physical replication maintains a full copy of the entire data of a cluster.
PostgreSQL 13: Don't let slots kill your primary | EDB
One of the interesting new features in PostgreSQL for some time now is the ability to control removal of WAL files using replication slots. The dark side is that replication slots can cause disks to fill up with old WAL, killing the main production server. In this article I explain PostgreSQL replication slots, and how a new feature in PostgreSQL 13 helps prevent this problem.
Best practices for Amazon RDS PostgreSQL replication | AWS Database ...
Monitor replication slots: If you enable the previous parameter, unconsumed WAL files keep accumulating at the source. As a best practice, keep a close eye on replication slots and kill inactive ones.
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An introduction to logical replication and change data capture ... Logical replication is a method of replication where Postgres uses the WAL files and transmit those changes to another Postgres database, or a system that supports reading WAL files.
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Documentation: 17: 26.2. Log-Shipping Standby Servers
Rename configuration parameter wal_keep_segments to wal_keep_size (Fujii Masao) ... Allow WAL storage for replication slots to be limited by max_slot_wal_keep_size (Kyotaro Horiguchi).
PostgreSQL® Extensions to the JDBC API | pgJDBC
postgres-config update --config max_slot_wal_keep_size=2GB. ... max_replication_slots: Defines the number of replication slots for data streaming.