One of my first projects at my new gig was to set up streaming replication on Postgres 9.4 database server. Replication is a handy way of mirroring data stored in postgres across several servers. PostgreSQL: Documentation: 9.4: Streaming Replication Protocol Documentation → PostgreSQL 9.4. ... To initiate streaming replication, ... This parameter is required, and must correspond to an existing logical replication slot created with CREATE_REPLICATION_SLOT in LOGICAL mode. XXX/XXX. The WAL position to begin streaming at. option_name. PostgreSQL: Documentation: 9.4: Log-Shipping Standby Servers Existing replication slots and their state can be seen in the pg_replication_slots view. Slots can be created and dropped either via the streaming replication protocol (see Section 49.3 ) or via SQL functions (see Section 9.26.6 ). Streaming replication slots in PostgreSQL 9.4 ...
PostgreSQL : Documentation: 9.4: Replication : Postgres ...
What's new in PostgreSQL 9.4 - PostgreSQL wiki In future logical replication will also take advantage of replication slots. Changeset Streaming / Logical decoding . In 9.4, Changeset Streaming, otherwise known as "Logical Decoding", supplies an new API for reading, filtering and manipulating the PostgreSQL replication stream. streaming replication Archives - 2ndQuadrant | PostgreSQL Streaming replication slots in PostgreSQL 9.4 February 25, 2014 / 11 Comments / in Craig's PlanetPostgreSQL / by craig.ringer Streaming replication slots are a pending feature in PostgreSQL 9.4, as part of the logical changeset extraction feature. Replication slots in Postgresql – Torbjørn Kristoffersen ... PostgreSQL 9.4. One of these new features is the concept of replication slots. This should appeal to those of us running streaming replication between a master and one or several hot standbys (or just archiving standbys). Before 9.4, in the event of a standby going offline, a master kept set a number of WAL files until the standby comes back online. Postgres 9.4 feature highlight - Physical slots for ...
Monitoring Postgres Replication - pgDash
postgresql_slot – Add or remove slots from a PostgreSQL ... Physical replication slots were introduced to PostgreSQL with version 9.4, while logical replication slots were added beginning with version 10.0. The default authentication assumes that you are either logging in as or sudo’ing to the postgres account on the host. PostgreSQL Streaming Physical Replication With Slots ... PostgreSQL streaming physical replication with slots simplifies setup and maintenance procedures. Usually, you should estimate disk usage for the Write Ahead Log (WAL) and provide appropriate limitation to the number of segments and setup of the WAL archive procedure. In this article, you will see ... Postgresql 9.4 Setup Replication with Slots - YouTube Replication slots allow standbys to provide information to the primary or upstream cascading standby as to the point they've reached in the write-ahead log. This information is available to the ...
PostgreSQL: Documentation: 9.4: Streaming Replication Protocol
pg_streaming_replication Puppet Module | Fat Dragon
Documentation → PostgreSQL 9.4. ... To initiate streaming replication, ... This parameter is required, and must correspond to an existing logical replication slot created with CREATE_REPLICATION_SLOT in LOGICAL mode. XXX/XXX. The WAL position to begin streaming at. option_name.
PostgreSQL 9.4 streaming replication over SSL with Replication Slots I never really liked the concept of keeping wal files in case the replica goes down proactively, setting wal_keep_segments was always a tricky number and most of the time we ended up setting this for the worst case scenario, something that means space consumption for no (under ... What's new in PostgreSQL 9.4 - PostgreSQL wiki In future logical replication will also take advantage of replication slots. Changeset Streaming / Logical decoding . In 9.4, Changeset Streaming, otherwise known as "Logical Decoding", supplies an new API for reading, filtering and manipulating the PostgreSQL replication stream.
postgresql - Slot replication not working in Postgres 9.4 ... I am using Postgres 9.4 on Windows 2008 server. There are three such instances that I am using. One as master and the rest of the two are slave/standby. The version of Postgres is 9.4 in all the three instances. I have set up replication using physical slot. But the replication is not working. PostgreSQL: Documentation: 9.4: Streaming Replication Protocol 49.3. Streaming Replication Protocol. To initiate streaming replication, the frontend sends the replication parameter in the startup message. A Boolean value of true tells the backend to go into walsender mode, wherein a small set of replication commands can be issued instead of SQL statements. Only the simple query protocol can be used in walsender mode. Streaming replication slots in PostgreSQL 9.4 ... Streaming replication slots are a pending feature in PostgreSQL 9.4, as part of the logical changeset extraction feature. What are they for, what do you need to know, what changes? What are replication slots? Streaming replication slots are a new facility introduced in PostgreSQL 9.4. They are a persistent record of the state of a […]