This guide explains the concepts of ZooKeeper cluster roles and provides step‑by‑step instructions, including configuration file edits and command‑line operations, to set up a pseudo‑cluster on a single machine for testing and learning purposes.
This article explains what k3s is, why it’s named that way, and provides detailed, command‑line instructions for installing k3s on a master node, adding worker nodes, verifying the cluster status, and inspecting running containers, all with example outputs and a link to the official documentation.
This guide walks through the complete process of installing RocketMQ 4.8.0, configuring a two‑master‑two‑slave asynchronous high‑availability cluster across two Linux servers, setting up the web console, and troubleshooting common pitfalls such as missing JDK, memory limits, firewall rules, and network address issues.
This guide details the preparation, configuration, and deployment steps for setting up an OpenShift 3.11 cluster on three CentOS 7.6 virtual machines, covering host mapping, SSH key setup, OS updates, image loading, Ansible playbooks, and troubleshooting common issues.
This guide walks through preparing three CentOS 7.6 VMs as combined master‑node hosts, configuring password‑less SSH, updating the OS, installing Ansible, importing required Docker images, setting up the Ansible inventory, deploying the OpenShift 3.11 cluster, creating an admin account, and troubleshooting common issues.
