logical replication Archives - 2ndQuadrant

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PG Phriday: 10 Things Postgres Could Improve – Part 2

June 19, 2020/0 Comments/in Shaun's PlanetPostgreSQL /by Shaun Thomas

Last week, we examined Postgres XID wraparound complications in greater depth to see exactly how easily they can surprise even prepared enterprises. But we also found the real problem areas and how to mitigate them specifically. In this continuing series to plumb the depths of Postgres constructively, we’re going to focus on some of the […]

Failover slots for PostgreSQL

June 8, 2020/8 Comments/in Craig's PlanetPostgreSQL /by craig.ringer

Logical decoding and logical replication is getting more attention in the PostgreSQL world. This means we need it working well alongside production HA systems – and it turns out there’s a problem there. Replication slots are not themselves synced to physical replicas so you can’t continue to use a slot after a master failure results […]

Upgrading to PostgreSQL 11 with Logical Replication

September 6, 2018/8 Comments/in 2ndQuadrant, Eisentraut's PlanetPostgreSQL, PostgreSQL /by Peter Eisentraut

It’s time. About a year ago, we published PostgreSQL 10 with support for native logical replication. One of the uses of logical replication is to allow low- or no-downtime upgrading between PostgreSQL major versions. Until now, PostgreSQL 10 was the only PostgreSQL release with native logical replication, so there weren’t many opportunities for upgrading in […]

Near-Zero Downtime Automated Upgrades of PostgreSQL Clusters in Cloud (Part II)

April 30, 2018/0 Comments/in 2ndQuadrant, DevOps, Featured, Gulcin's PlanetPostgreSQL, pglogical, PostgreSQL /by Gulcin Yildirim

I’ve started to write about the tool (pglupgrade) that I developed to perform near-zero downtime automated upgrades of PostgreSQL clusters. In this post, I’ll be talking about the tool and discuss its design details. You can check the first part of the series here: Near-Zero Downtime Automated Upgrades of PostgreSQL Clusters in Cloud (Part I). The tool is […]

Near-Zero Downtime Automated Upgrades of PostgreSQL Clusters in Cloud (Part I)

March 23, 2018/5 Comments/in 2ndQuadrant, DevOps, Featured, Gulcin's PlanetPostgreSQL, pglogical, PostgreSQL /by Gulcin Yildirim

Last week, I was at Nordic PGDay 2018 and I had quite a few conversations about the tool that I wrote, namely pglupgrade, to automate PostgreSQL major version upgrades in a replication cluster setup. I was quite happy that it has been heard and some other people in different communities giving talks at meetups and other […]

PG Phriday: pglogical and Postgres 10 Partitions

September 22, 2017/6 Comments/in pglogical, Shaun's PlanetPostgreSQL /by Shaun Thomas

During the Postgres Open 2017 conference in San Francisco, someone came to the 2ndQuadrant booth and struck up a conversation with me. During our shameless geeking out over database mechanics, he asked me if pglogical supported the new Postgres 10 partitions. Given my noted expertise in all things Postgres, I answered in the appropriate manner: […]

PostgreSQL 10 Logical Replication with OmniDB

September 19, 2017/0 Comments/in OmniDB, William's PlanetPostgreSQL /by William Ivanski

1. Introduction Logical replication uses a publish/subscribe model and so we create publications on the upstream (or publisher) and subscriptions on downstream (or subscriber). For more details about it, please refer to this blog post from my colleague Petr Jelinek, and also to the PostgreSQL documentation. Here we will show how to build a test […]

Logical Replication in PostgreSQL 10

April 28, 2017/37 Comments/in Petr's PlanetPostgreSQL /by Petr Jelinek

PostgreSQL 10 is getting close to its first beta release and it will include the initial support for logical replication, which is was written primarily by me and committed by my colleague Peter Eisentraut, and is internally based on the work 2ndQuadrant did on pglogical (even though the user interface is somewhat different). I’d like […]

When autovacuum does not vacuum

April 19, 2017/9 Comments/in 2ndQuadrant, PostgreSQL, Tomas' PlanetPostgreSQL /by Tomas Vondra

A few weeks ago I explained basics of autovacuum tuning. At the end of that post I promised to look into problems with vacuuming soon. Well, it took a bit longer than I planned, but here we go. To quickly recap, autovacuum is a background process cleaning up dead rows, e.g. old deleted row versions. […]

pglogical 1.2 with PostgreSQL 9.6 support

October 20, 2016/0 Comments/in Petr's PlanetPostgreSQL /by Petr Jelinek

PostgreSQL 9.6 is now out and so is an updated version of pglogical that works with it. For quick guide on how to upgrade the database with pglogical you can check my post which announced 9.6beta support. The main change besides the support for 9.6.x release of PostgreSQL is in the way we handle the […]

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Posts

PG Phriday: 10 Things Postgres Could Improve – Part 2

Failover slots for PostgreSQL

Upgrading to PostgreSQL 11 with Logical Replication

PG Phriday: pglogical and Postgres 10 Partitions

PostgreSQL 10 Logical Replication with OmniDB

Logical Replication in PostgreSQL 10

When autovacuum does not vacuum

pglogical 1.2 with PostgreSQL 9.6 support

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