Posts published under the Open source Team account are collective contributions by the dbi services open infrastructure consultants. The practice covers open-source databases and platforms, PostgreSQL first of all, along with MySQL, MariaDB, and Linux, from architecture, replication, and high availability to performance tuning and operations under service level agreements, and contributes actively to the PostgreSQL community.
This script provides functionality to setup passwordless authentication in PostgreSQL for defined Server Names. This is very helpful by using replication via repmgr and is not Linux Distribution specific, it was used till now with SLES 12, SLES 15 and RHEL 8 Clones. As all of my scripts it provides help how the usage is with -h parameter: $ [[root@rocky…
When you are using PostgreSQL you should already know that PostgreSQL comes with a set of extensions by default. It might be that you need to install an additional package if you installed PostgreSQL with a package manager to get those extensions. Usually it is called something with “contrib” in its name. There is also the PostgreSQL Extension Network which…
When you run PostgreSQL workloads in production you must have a backup and restore implementation. Even for development instances, which are like production for the developers, a well-tested backup and restore procedure sometimes must be in place. Community PostgreSQL comes with pg_basebackup to help you with creating a full consistent backup of your PostgreSQL cluster. If you want to be…
Time is moving fast and PostgreSQL 14 is already in beta 2. PostgreSQL 14 will ship with a lot of new features and in this post will look at a smaller one: There are three new predefined roles: pg_read_all_data, pg_write_all_data and pg_database_owner. While it seems to be obvious what the first two roles are about, the third one might sound…
By Franck Pachot . I thought that my last post on this blog was the previous one but I blog when it comes to my mind – nothing planned. And two things got me to write this. First, last week we got our 20th dbi xChange where we meet with colleagues. And I love discussing with colleagues about what we…
By Franck Pachot . I have published 105 additional blog posts here since the 500th one https://www.dbi-services.com/blog/rollback-to-savepoint/ that I have written on my come back to dbi-services. On Oracle Database, of course, other databases as well, on clouds (OCI and AWS mainly, with a look at GCP and Azure). But also with some thoughts on the rise of the “scale-out”…
This Blog is a follow up uf one of my older Blogs and my Article at heise.de: Blog at dbi-services.com Article at heise.de For RHEL 8 at its clones like AlmaLinux, CentOS, Oracle Linux and Rocky Linux i have written a shell script to automated recurring setups. This is used for a cloud project using own virtual machines. The script…
Canonical is consistently promoting Snap Integration in the Ubuntu world with all its market power. However, many do not like this development with Ubuntu. But what options do you still have as an Ubuntu user if you don’t necessarily want to change the distribution? I’ll show you how to run Ubuntu 20.04 with Flatpak instead of Snap and get rid…
This Blog is about the installation of Rancher Community on a RHEL 8 compatible Linux, for this Blog i choose AlmaLinux 8.4, but i will also work on Rocky Linux 8.4 Release Candidate. Base is an AlmaLinux / Rocky Linux minimal installation on a VMWare Host for all nodes, using the same configuration with 4vCPU and 4GB RAM. A small…
You can already find several blog posts around PostgreSQL protected by Patroni on our blog. They all have in common, that the setup is on a flavor of Linux. As I got impressed by FreeBSD and played with it during the last weeks (some blog posts here), I wanted to know if Patroni runs well on FreeBSD. Well, here are…
You probably know that a fresh initialized PostgreSQL cluster comes with three databases by default: template0, template1, and postgres. If you want to know why they are there, and what their purpose is, check this post. In this post we’ll look at something you may never have noticed: Why is the postgres database, even after a fresh initdb, slightly larger…
By Franck Pachot . In a previous post I’ve compiled PostgreSQL with GCC 7 and GCC 11 with the default options and checked that the ARM v8.2 features were used. However it may not be so simple: PostgreSQL ./configure defines gcc flags to produce a binary that is compatible with older versions of ARM. This means that it may not…
