PostgreSQL Solutions Roadmap

In a recent blog, I described features for PostgreSQL Core that we’ve been working on Many people have asked for a similar roadmap for BDR and Postgres-XL. I can confirm that both are under active development and in active use. Postgres-XL (link) XL 9.5 v1.2 is now available, with more updates coming. XL 9.6 […]

The Physics of Multi-Master

If you try to update the same data at the same time in multiple locations, your application has a significant problem, period. That’s what I call the physics of multi-master. How that problem manifests itself is really based upon your choice of technology. Choosing Postgres, Oracle or ProblemoDB won’t change the problem, just gives you […]

When are we going to contribute BDR to PostgreSQL?

My colleagues and I are often asked “when will you (2ndQuadrant) contribute BDR to PostgreSQL?” This makes an interesting assumption: that we have not already done so. We have. Much of BDR has already been contributed to core PostgreSQL, with more to come. All of BDR is under the PostgreSQL license and could be merged […]

BDR 0.9.2 and BDR-PostgreSQL 9.4.4 released

Version 0.9.2 of the BDR (Bi-Directional Replication) extension for PosgreSQL has been released. This is a maintenance release in the current stable 0.9.x series, focused on bug fixes, stability and usability improvements. In particular bdr_init_copy, the pg_basebackup-based node bring-up tool, is significantly improved in this update. This release also updates the BDR-patched version of PostgreSQL […]

Dynamic SQL-level configuration for BDR 0.9.0

The BDR team has recently introduced support for dynamically adding new nodes to a BDR group from SQL into the current development builds. Now no configuration file changes are required to add nodes and there’s no need to restart the existing or newly joining nodes. This change does not appear in the current 0.8.0 stable […]

BDR for PostgreSQL: Present and future

For a couple of years now a team at 2ndQuadrant led by Andres Freund have been working on adding bi-directional asynchronous multi-master replication support for PostgreSQL. This effort has become known as the BDR project. We’re really excited to see these efforts leading to new PostgreSQL features and have a great deal more still to […]

PostgreSQL 9.4 for administrators (part one)

      Version 9.4 of PostgreSQL, soon to be released, has many innovations for administrators, including the introduction of support for logical replication, which is the first step towards the integration of multi-master replication into core PostgreSQL. In this two-part article we will show you the main new features for administrators; we begin with […]

… and now for something completely different!

Up until now, reading this blog has kept you up-to-date with the latest developments in PostgreSQL. This time I would like to invite you to meet the team of 2ndQuadrant at the PostgreSQL Conference Europe 2014 which took place in Madrid on October 21st-24th. As you know, 2ndQuadrant offers 7 days a week, 24 hours […]

Announcing BDR RPMs for 9.4

RPMs for BDR (Bi-Directional Replication for PostgreSQL) are now available for testing. They contain BDR release 0.7.1, which is based on PostgreSQL 9.4beta2. Because there may be an on-disk format change (catversion bump) before PostgreSQL 9.4.0 final, and because these RPMs are quite new, this should be considered a test release. RPMs are available for […]

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 […]