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PostgreSQL: Documentation: 17: 47.2. Logical Decoding Concepts
Postgres replication is a powerful tool for replicating data between databases; unlike physical replication, logical replication gives you more control and flexibility over what data is replicated and how it's used.
PostgreSQL 10 - Logical replication - TRẦN VĂN BÌNH MASTER
Ở Cascade Replication mặc định chỉ sử dụng Asynchronous. Chức năng replication slot (PostgreSQL 9.4). Standby Server dựa vào WAL cung cấp từ ...
Using PostgreSQL Replication Slots
In Postgres 9.4, replication slots were introduced. A process receiving changes via streaming replication can create a replication slot on the primary server.
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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 Replication Guide: Navigate Complexity | Airbyte
Property max_replication_slots should be greater than zero for logical replication, because logical replication can’t work without replication slot.
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With replication slot streaming replication, it is highly recommended that people should monitor their master server’s pg_wal directory and drop the unused ...
Postgres replication slots grow indefinitely - Google Groups
Replication slot can be thought as an object that tracks replication progress. This object is created at primary instance and a replica connects to it.
Documentation: 16: 49.2. Logical Decoding Concepts
Log-Based Replication captures and replays database changes via transaction logs for consistent data replication.
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.
Documentation: 9.4: pg_replication_slots
pg_stat_replication_slots One row per replication slot, showing statistics about the replication slot's usage.