Package: postgresql-14-pg-failover-slots Source: pg-failover-slots Version: 1.2.1-1.pgdg26.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 95 Depends: postgresql-14, libc6 (>= 2.38), libpq5 (>= 9.0~) Homepage: https://github.com/EnterpriseDB/pg_failover_slots/ Priority: optional Section: database Filename: pool/main/p/pg-failover-slots/postgresql-14-pg-failover-slots_1.2.1-1.pgdg26.04+1_amd64.deb Size: 40000 SHA512: 267214fe0a8037be182cc7f76030a60640c72b26708b95dfd10070c6fd3ab1c1919731721c25531bd703efb1c2f2d38a4b3ac1a8aa41b91bd14abd3ce32691b9 SHA256: dd151bd298fc6188cf9efcb8f580a58b8d96d6487afb46392bcb9909e081e020 SHA1: 7ca2398347f3ff055baeb42b6e8033df2fba2656 MD5sum: 0200ac16ed56e5dd51ff49081c234a49 Description: High-availability support for PostgreSQL logical replication This extension is for anyone with Logical Replication Slots on Postgres databases that are also part of a Physical Streaming Replication architecture. . Since logical replication slots are only maintained on the primary node, downstream subscribers don't receive any new changes from a newly promoted primary until the slot is created, which is unsafe because the information that includes which data a subscriber has confirmed receiving and which log data still needs to be retained for the subscriber will have been lost, resulting in an unknown gap in data changes. PG Failover Slots makes logical replication slots usable across a physical failover using the following features: . - Copies any missing replication slots from the primary to the standby - Removes any slots from the standby that aren't found on the primary - Periodically synchronizes the position of slots on the standby based on the primary - Ensures that selected standbys receive data before any of the logical slot walsenders can send data to consumers