ANNOUNCEMENT - RELOCATION
I’m thrilled to announce that I’ve moved my blog from https://insanedba.blogspot.com to https://dincosman.com Please update your bookmarks and follow/subscribe at the new address for all the latest updates and content.
Posts
Secure PostgreSQL : Patroni, Etcd, Pgbackrest Included
Step by step guide for securing your PostgreSQL Database Environment I’ve moved my blog from https://insanedba.blogspot.com to https://dincosman.com Please update your bookmarks and follow/subscribe at the new address for all the latest updates and content. More up-to-date content of this post may be available there. In today's world, keeping data secure is absolutely crucial. As companies depend more and more on databases to handle all sorts of sensitive information, making sure those databases are locked down tight is a top priority. Ensuring the overall security of PostgreSQL is a multifaceted task that involves implementing various measures to protect the database from potential threats. Many measures may be taken in every layer of the database environment. I will explain some in detail and summarize others in one sentence. Lets start with the database itself. Secure PostgreSQL Database: 1. Authentication and Authorization : Use RBAC (role based access control), ...
Speed up All Spatial Operations with SPATIAL_VECTOR_ACCELERATION parameter
100's of times faster Spatial operators and functions I’ve moved my blog from https://insanedba.blogspot.com to https://dincosman.com Please update your bookmarks and follow/subscribe at the new address for all the latest updates and content. More up-to-date content of this post may be available there. Last week, I tried to diagnose an application problem which mostly consisted of queries related to spatial operators. When I delved into the issue, I discovered that the SPATIAL_VECTOR_ACCELERATION parameter was set to false on my mission-critical databases, despite the spatial component being used effectively. Although many bloggers had written about it, I was not aware of this parameter. So I wanted to draw everyone's attention to this parameter. According to the Vector Performance Acceleration in Oracle Spatial and Graph (Doc ID 1506885.1) , In Oracle Database versions 12c and above, significant enhancements have been made to improve vector operations through ...
How to Upgrade PostgreSQL, PostGIS and Patroni in Air-Gapped Environments
Upgrade Your PostgreSQL Database: Major Steps and Minor Touches I’ve moved my blog from https://insanedba.blogspot.com to https://dincosman.com Please update your bookmarks and follow/subscribe at the new address for all the latest updates and content. More up-to-date content of this post may be available there. In this blog post, I will show how a complete PostgreSQL environment major update can be done. Minor upgrades are not a tough task; they are no different from a standard Linux package upgrade. As my production environment serves in an airgapped-environment, I will complete all the major upgrades with no internet connection. I've downloaded all the required whl and .rpm packages before the upgrade. Before starting, a short description of major and minor PostgreSQL upgrades is provided below: Major Upgrade: Upgrading PostgreSQL to a new major version, such as moving from 10 to 11 or 12 to 13. Major upgrades bring significa...
Oracle Database Release Update by Using Ansible Playbooks
Ansible to Rule Them All I’ve moved my blog from https://insanedba.blogspot.com to https://dincosman.com Please update your bookmarks and follow/subscribe at the new address for all the latest updates and content. More up-to-date content of this post may be available there. In the previous post " Oracle Grid Software Patching by using Ansible Playbooks" , I mentioned how Ansible orchestration can be used to make Oracle Grid Software Patching a cleaner and simpler process. Now I will also patch database software using Ansible Playbooks. In this post, I will use the blt01 host as the ansible host. The target environment is a two-node RAC database (gns01, gns02). I will patch the grid software to 19.22 using the out-of-place methodology with no downtime. Although there are lots of useful blog posts about how you may use Ansible for automating tasks, there is not much about complete Oracle database software patching. Ansible is simply installed by running "y...
Oracle Grid Release Update by using Ansible Playbooks
Ansible is a friend in need and a friend indeed for DBAs. I’ve moved my blog from https://insanedba.blogspot.com to https://dincosman.com Please update your bookmarks and follow/subscribe at the new address for all the latest updates and content. More up-to-date content of this post may be available there. In this blog post, I will mention about Redhat Ansible and show how you can patch your grid infrastructure by using it. Ansible is an open source, command-line IT automation software application written in Python. It can configure systems, deploy software, and orchestrate advanced workflows to support application deployment, system updates, and more. Ansible's main strengths are simplicity and ease of use. It is a little bit similar to dcli commands in Exadata environments, but much more powerful as you may run playbooks which consist of different tasks. Ansible stands out from other configuration management tools because it doesn't need agents installed on target host...