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Observability vs Monitoring

14.04.2023 by Olivier Spiesser

Both words, observability and monitoring, are often used interchangeably and without taking care of the difference. Monitoring Monitoring is alerting based on known, predefined metrics and log patterns. Events Examples of events are: Trigger a minor event when CPU is(…)

Database Administration & Monitoring

How a merge join produced the wrong result in PostgreSQL

14.04.2023 by Daniel Westermann

This was a really interesting customer case and I learned a lot by troubleshooting this. The original request was: We have two databases connected via postgres_fdw and when a merge join is chosen by PostgreSQL we(…)

WebLogic

Oracle WebLogic Docker Images

13.04.2023 by Olivier Spiesser

Oracle WebLogic container images stored on docker hub are deprecated. Oracle moved these on his own container registry: https://container-registry.oracle.com/ This registry contains many Oracle products, but we will focus on WebLogic in(…)

Oracle

ODA: ASR Manager RPM update stuck

11.04.2023 by Jérôme Dubar

When updating ODA, ASR Manager RPM update is stuck(…)

SQL Server

SQL Server: How Correlation assumptions work for multiple predicates

10.04.2023 by Steven Naudet

SQL Server 2022 introduced “CE Feedback“, a feature that adjusts some Cardinality Estimation model assumptions at a query level by applying Query Store hints. In this blog post, I’ll use an example query from the(…)

Operation systems

Microsoft:Backup and restore your distribution on WSL

06.04.2023 by Nabil Saoual

Introduction Hi team I hope you are doing well, in a previous post, we have seen how to enable Windows Subsystem to install Linux distribution. Create a folder to store your backups Connect to Powershell Create the directory to store(…)

Application integration & Middleware

Ansible Driven Automation and Kafka

06.04.2023 by Olivier Spiesser

I will add another example of what can be done with Ansible Driven Automation by interfacing it with Kafka. For those who wonder what Event-Driven Ansible is have a look at my previous blog about it.

Application integration & Middleware

JBoss-EAP and WildFly Official Docker Images

06.04.2023 by Olivier Spiesser

In this blog, I will focus on what is available from vendor for the two application servers I am used to work with: JBoss EAP and WildFly. Along this blog, I will show few tips and concepts on docker commands.

Database Administration & Monitoring

SQL Server: How to see your enable security protocols (TLS/SSL/DTLS) with a TSQL Query?

05.04.2023 by Stéphane Haby

First, a little explanation about TLS, DTLS & SSL: TLS is Transport Layer Security. It’s a cryptographic protocol to provide communication security over the network. DTLS is the abbreviation of Datagram Transport Layer Security. It’s also a cryptographic protocol providing(…)

Non classifié(e)

Alyssa has discovered a few career paths in IT

04.04.2023 by Elisa Usai

This period is rich in reflections for me on the condition of women in IT and technology. At the beginning of the year, my colleague Julia Gugel and I prepared a talk about "The curious case of women(…)