In a distributed database system like PostgreSQL managed by Patroni, etcd plays a critical role as the distributed key-value store for cluster coordination and configuration. As your system evolves, upgrading etcd becomes necessary to leverage new features, bug fixes, and security enhancements. However, upgrading etcd in a live cluster requires careful planning and execution to ensure data integrity. In this…
In your DevOps and containerization journey, let’s discover together how a cloud-native product named Kured can save you from the patching fears of your Kubernetes platform.
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. In the context of this blog, we assume that we have a minimal version Kubernetes cluster, with one Master and two Worker nodes, at…
In the upcoming blog posts, I will cover monitoring with Prometheus in a Kubernetes infrastructure. As I started blogging, I decided it would be useful to delve into the design of the k8s infrastructure. This will allow you to approach these blogs better if you wish to reproduce them. Therefore, I will start with the basics and explain step by…
It is time to show you how to build a cluster with Domain mode within JBoss EAP 7. Before you read this blog I suggest you to review the following blogs: JBoss terminologies, the Domain architecture understanding, and how to create a Domain. All these bogs will help you to better understand what we will do today 😉 Environment Preparation…
In a previous blog, we got an overview on Elastic Stack (Elasticsearch, Logstash, Kibana, and Beets), in next blogs I will go through all these components to understand them, today we will go more in deep in Elasticsearch the heart of Elastic Stack. To really discover Elasticsearch we need to understand the below concepts and terminologies: Node Is a single…
In a previous blog, I mentioned an issue that I faced when upgrading an Alfresco Content Services 5.2 to 6.1 on a VM with no internet access. The solution was simply to change one of the schema “URL” so that it can fallback to local references, meaning that it will try to check and find the schema definition inside the…
Sometimes giving a workshop is a good opportunities to test new things…this what happened to me today… 🙂 While giving an ODA workshop, I thought it was a good opportunity to test patching to the new 19.12 release. However during the update-server process we got a failure on the our ODA update to 19.12 failing on GI patch using RHP.…
By Mouhamadou Diaw In this previous blog , we deal with Oracle Restart and ACFS. We saw that using ACFS with Oracle Restart will require some manual tasks. The solution is to install a Grid Infrastructure for a cluster, even if we are only using one node. I am using the same configuration -Oracle 19c -Oracle Linux Server 7.6 -Kernel…
I have been recently deploying some new ODA X8-2-HA. After reimaging and creating the appliance, I had to patch the ODA. The day after, checking status, I could realize that my node 0 was not working as expected. I did some interesting troubleshooting that I wanted to share hoping it might be helpful for someone. Why patching an ODA after…
By Franck Pachot . Advocates of NoSQL can query their structures without having to read a data model first. And without writing long table join clauses. They store and query a hierarchical structure without the need to follow relationships, and without the need to join tables on a foreign key name, in order to get a caption or description from…
By Franck Pachot . We have an incredible number of possibilities with Oracle. Yes, an index can be global (indexing many partitions without having to be partitioned itself on the same key) and partial (skipping some of the table partitions where we don’t need indexing). In the previous post of this series of small examples on recent features I partitioned…
