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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(…)

Elasticsearch – Data lifecycle management

Elasticsearch is a very versatile platform that supports a variety of use cases and provides great flexibility around data organization. After a global overview on Elastic Stack, understanding Elasticsearch terminologies, and(…)

High Availability and Hierarchical Federation with Prometheus

Learn about Prometheus and how to setup high availability and federation.

Oracle Zero Downtime Migration : Offline logical database migration from on-premises to Autonomous DB 

I have recently written a blog introducing the Oracle ZDM (Zero Downtime Migration) tool : https://www.dbi-services.com/blog/zero-downtime-migration-zdm-to-oracle-cloud-infrastructure-oci/ I have also done some tests performing an offline logical database migration from a database running on an OCI(…)