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Kubernetes: Extension of disk in Rook Ceph

In my previous blog, I’ve introduced the storage solution Rook Ceph for Kubernetes. We saw that in our architecture we had 3 workers dedicated for storage using Ceph file system. Each worker had 2 disks of(…)

Considerations when backing up from the Oracle Standby Database (Data Guard) with rman to shared storage (NFS)

To reduce load on the Primary DB in a Data Guard configuration you may decide to do your rman backups from the Standby site. A very common approach today is to use NFS as the backup location, especially when using(…)

How to keep your Prometheus ecosystem secure

Prometheus is a popular open-source monitoring system that helps track and alert for various applications. However, regarding security, there are some essential things to consider. Prometheus server, for instance, does not provide authentication or TLS encryption out of the box,(…)

Apache Tomcat Monitoring in Prometheus

To monitor Apache Tomcat, the most convenient solution is to use JMX Exporter provided by Prometheus git repository. Enable JMX Remote To enable JMX Remote, I will simply add the following line(…)

Introduction to Rook Ceph for Kubernetes

We have been doing a lot of tests around Rook Ceph lately for one of our customer and it may worth sharing what I’ve learned. If you want a quick overview on that topic before diving into the official documentation(…)

Let’s upgrade Kubernetes with kubeadm

Upgrade the Control Plane After installing a Kubernetes cluster, I suggest we continue upgrading the cluster using kubeadm installation and configuration tools. So that you know, upgrading a cluster is done from version to version +1.

Nginx Monitoring in Prometheus

Following my two previous blogs about monitoring, I will now focus on Nginx. Nginx Inc provides an exporter with it’s code: https://github.com/nginxinc/nginx-prometheus-exporter As Nginx cannot run a web application as WebLogic or(…)

PostgreSQL 16: GENERIC_PLAN option for EXPLAIN and SHELL exit codes for psql

Last week some smaller features got committed for PostgreSQL. The first one is an option which can be given to explain for displaying the generic plan for a statement. I’ve written about generic plans in the past, please read(…)

WebLogic Monitoring in Prometheus

In this blog, I will explain how to enable WebLogic monitoring in Prometheus as I did for WildFly in my previous blog. WebLogic Monitoring Exporter Oracle is providing, as open source, a(…)

pgDay Paris 2023

Another great PostgreSQL community conference is over, and I came back with a lot of impressions yesterday. It was probably the worst time of the year for the conference to happen, as massive strikes are ongoing in France currently. Nothing(…)