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Documentum – ACS not starting because of ActiveMQ on the MethodServer

Documentum is an inexhaustible source of issues and that’s great because I can continuously write blogs on it, and I always have materials for that. In this blog, I will talk about the ACS not being able to start on(…)

Why do we still have HEIGHT BALANCED Histograms and how to get rid of them?

A customer, who is on 19c with his Oracle databases asked me recently why he still has Height Balanced Histograms in his database? E.g. SQL> select histogram, count(*) from dba_tab_columns where histogram <> 'NONE' group by histogram order by 2;(…)

Using Docker containers for Ansible testing

I’d like to share in this post a quick setup using Docker containers for Ansible testing. I wanted to create a small lab for my Ansible scripts testing. The natural option that came to my mind was to create some(…)

Vim Tips & Tricks for the Kubernetes CKA exam

After being a regular reader of this blog for months, I’m thrilled to publish my first post! Vim is a very powerful editing tool to know in Linux and sometimes the only text editor available when connected to a machine(…)

PostgreSQL on 80 core ARM Server

This Blog is about intallation and testing PostgreSQL 14 latest on an ARM based 80 core Server using Rocky Linux 8.6. Many thanks to Happyware for providing the machine used for this Blog. https://happyware.com/ The machine used for this(…)

ODA: How to use Data Preserving Reprovisioning?

Introduction Oracle Database Appliance has a global patch available each quarter, so all the components can be patched together on a regular basis. Most of the time, applying the patch on your ODA will be OK, but sometimes you will(…)

Setup a Rocky Linux Repository server

This Blog is about a setup of a Rocky Linux Repository server. Many people whould complain that it will be the same than RHEL 8, but is is not, there are some differencies between AlmaLinux, Rocky Linux, Oracle Linux(…)

Setup a AlmaLinux 8 Repository Server

This Blog is about to setup a AlmaLinux 8 Repository Server including EPEL and RPMFusion. Many people whould complain that it will be the same than RHEL 8, but is is not, there are some differencies between AlmaLinux, Rocky Linux,(…)

Setup a RHEL 8 Repository Server

This Blog is about a own Repository server for RHEL 8, Blogs for Repository Server for AlmaLinux, Oracle Linux, Rocky Linux, OpenSuse LEAP, SLES 15 and Debian 11 will follow. The base is a minimal installation.I have added EPEL and(…)

Documentum – Encrypt BOF passwords with a minimal jar file

Nowadays, with DevOps and containers approaches, you will often see components or software that try to go on a diet, to reduce the size needed to deploy them and therefore the images/containers associated to it. I was recently asked to(…)