This guide explains how to use kubeasz and Ansible to design, deploy, scale, secure, monitor, and maintain a production‑grade Kubernetes cluster, covering control‑plane HA, etcd reliability, networking, storage, capacity planning, upgrade strategies, and disaster‑recovery practices.
This comprehensive guide explains why Ceph is a leading software‑defined storage solution, details hardware and network design, walks through step‑by‑step deployment with cephadm, covers pool creation, monitoring, performance tuning, troubleshooting, scaling, backup, security hardening, and advanced automation for production environments.
This article examines three MySQL high‑availability solutions—MHA, Percona XtraDB Cluster, and Galera Cluster—detailing their architectures, advantages, limitations, deployment scenarios, and best‑practice recommendations to help engineers choose the most suitable approach for continuous, reliable database operations.
This guide walks you through designing, preparing the environment, installing, configuring, and validating a production‑grade RocketMQ cluster with multiple masters and slaves, including optional web console setup, one‑click deployment scripts, performance tuning, security hardening, and monitoring recommendations.
This comprehensive guide walks you through the fundamentals of Ceph, hardware recommendations, network design, step‑by‑step deployment with cephadm, storage pool configuration, performance tuning, troubleshooting, scaling, backup, security hardening, and automation scripts for production‑grade Linux clusters.
This comprehensive guide explains MongoDB sharding fundamentals, walks through step‑by‑step deployment of config servers, shard replica sets, and mongos routers, compares range, hash, and compound shard keys, and provides performance tuning, security, backup, monitoring, and troubleshooting best practices for production‑grade clusters.
This tutorial walks through preparing three CentOS 7 hosts, installing Docker and Kubernetes components, initializing a master node, handling common errors, joining worker nodes, installing a CNI plugin, testing the cluster, and provides essential kubectl commands for ongoing management.
This comprehensive guide walks you through RabbitMQ's core features, typical use cases, step‑by‑step local installation, cluster architecture, HA configuration, admin console, monitoring scripts, capacity planning, and automation, enabling reliable, high‑performance messaging in production environments.
This step‑by‑step guide shows how to prepare two Ubuntu 22.04 servers, configure Docker and system settings, install Rancher 2.6.9 via Docker, and use Rancher’s UI to create and launch a functional Kubernetes master‑node and worker‑node cluster.
This comprehensive guide explains storage fundamentals (DAS, NAS, SAN), the limitations of single‑node storage, introduces distributed storage concepts, details Ceph’s architecture, advantages, data flow, version lifecycle, and provides step‑by‑step instructions for deploying a Ceph cluster with ceph‑deploy, including monitors, OSDs, managers, and the web dashboard.
This guide walks you through setting the download region, installing KubeKey and required dependencies, generating a configuration file, creating a single‑node or multi‑node Kubernetes cluster with containerd, and verifying the deployment using kubectl, all with clear command examples and screenshots.
This tutorial walks you through preparing two Ubuntu servers, configuring Docker, installing Rancher 2.6.9, deploying a Kubernetes master and worker nodes via Rancher’s UI, and validating the cluster with an Nginx workload, all with detailed commands and screenshots.
This comprehensive tutorial explains Nacos' advantages over Eureka, its Raft‑based consistency, integration with Spring Cloud Alibaba, detailed architecture, installation steps, standalone and cluster modes, and practical demos for using Nacos as both a service registry and a configuration center in microservice applications.
This article explains the high‑availability architecture of TuGraph‑DB, covering the concepts of HA, the Raft consensus algorithm, cluster design, server and client mechanisms, snapshot handling, and future roadmap such as witness nodes and on‑demand snapshots.
This guide walks through installing RabbitMQ, explaining its features and typical use cases, then details step‑by‑step deployment of a mirrored‑mode RabbitMQ cluster on Kubernetes using StatefulSets, NFS‑backed persistent storage, RBAC, and verification of cluster health and management operations.
This tutorial explains how to prepare nodes, install required packages, configure cephadm, bootstrap a Ceph cluster, add monitors, managers, OSDs, and verify the deployment using command‑line operations on Rocky Linux systems.
This comprehensive tutorial details the process of deploying a complete Hadoop-based big data ecosystem on ARM architecture, covering the installation and configuration of essential components including Java, Zookeeper, Hadoop, MySQL, Hive, and Spark with practical code examples.
This article provides a comprehensive tutorial on setting up a Nacos cluster on Linux, covering environment preparation, database configuration, application property tuning, cluster file creation, startup procedures, microservice integration, and an in‑depth explanation of the Raft‑based leader election and data synchronization mechanisms.
This article provides a comprehensive overview of Kafka’s core concepts, high‑performance design, cluster planning, resource evaluation, deployment steps, producer and consumer configurations, fault‑tolerance mechanisms, and operational tools, offering practical guidance for building and managing a high‑throughput Kafka production environment.
This comprehensive guide explains Ceph's background, architecture, key features, terminology, step‑by‑step cluster deployment on CentOS, dashboard setup, CephFS creation, and a Java client example, providing everything needed to build and operate a reliable distributed storage system.
This guide explains how to set up a production‑grade Apache Airflow cluster on Kubernetes using different executors, Helm charts, Git‑based DAG synchronization, custom Docker images, and related tooling such as Chocolatey, Helm, and Git, providing step‑by‑step commands and configuration details.
This article provides an in‑depth overview of Kafka, covering why messaging systems are needed, core concepts, cluster architecture, performance optimizations such as sequential disk writes and zero‑copy, hardware sizing, replication, consumer groups, offset management, rebalance strategies, and practical deployment and operational guidelines.
This comprehensive guide explains Kafka's core value for decoupling and asynchronous processing, details its producer‑consumer model, cluster architecture, log segmentation, zero‑copy I/O, hardware sizing, network planning, operational commands, throughput tuning, exception handling, consumer group mechanics, offset management, rebalance strategies, and internal mechanisms such as LEO/HW, controllers, delayed tasks, and time‑wheel scheduling.
JD's OLAP platform runs on ClickHouse and Doris across 3,000 servers, handling billions of daily queries and petabytes of data, and this article details the selection criteria, cluster deployment models, high‑availability architecture, operational challenges, and future roadmap.
This guide walks through installing k0s, a certified Kubernetes distribution, using k0sctl for automated, customizable deployments—including binary installation, offline image handling, CNI plugin switching, HA setup with external load balancers, backup, restore, and advanced features like etcd replacement and user management.
This article explains Elasticsearch's core concepts—nodes, indices, shards, and replicas—describes the indexing flow, compares mixed and layered deployment models, and discusses data‑layer architectures, helping readers choose the appropriate cluster design for reliability and scalability.
The article details JD.com’s large‑scale OLAP strategy using ClickHouse as the primary engine and Doris as a secondary engine, covering application scenarios, component selection criteria, cluster deployment models, high‑availability architecture, fault‑handling procedures, performance tuning, and future cloud‑native plans.
This article details the background, goals, design decisions, deployment steps, kernel tuning, fault‑recovery testing, performance optimization, and TPCH benchmark results of a Greenplum data‑warehouse cluster expansion, highlighting practical challenges and concrete solutions for large‑scale database environments.
This article walks you through the complete installation and configuration of UCloud's free USDP (UCloud Data Platform) on a three‑node CentOS 7.2‑7.6 cluster, covering environment preparation, package download, repair scripts, MySQL setup, service startup, web UI activation, monitoring, and a quick Hive query example.
This article explains Kafka's fundamental principles, cluster architecture, data performance techniques such as zero‑copy and log segmentation, resource planning for high‑throughput scenarios, and provides practical operational commands and custom partitioning examples for reliable, high‑availability deployments.
This article provides a comprehensive overview of ClickHouse, covering its columnar OLAP architecture, key features such as data compression, vectorized processing, distributed query handling, and SQL support, followed by detailed step‑by‑step instructions for deploying a multi‑node ClickHouse cluster with MergeTree and ReplicatedMergeTree engines, configuration files, and Java MyBatis integration.
This article outlines Kubernetes cluster components and presents practical single‑cluster and multi‑cluster deployment architectures, covering component interactions, load‑balancer designs, pre‑deployment preparations, Ansible‑driven automation, and operational benefits for private‑cloud PaaS environments.
This guide walks through setting up a three‑node Zookeeper ensemble, configuring ActiveMQ with replicated LevelDB storage, and starting the services on each host, providing full command‑line steps, configuration snippets, and verification screenshots for a production‑grade deployment.
This comprehensive guide explains Kafka's role as a message system, detailing topics, partitions, producers, consumers, replication, controller, ZooKeeper coordination, performance optimizations like sequential writes and zero‑copy, and practical recommendations for hardware, configuration, and cluster deployment.
This guide details how to set up a high‑availability RocketMQ cluster with two name servers and four brokers across two Linux hosts, covering directory preparation, configuration file edits, service startup commands, and verification of the deployment.
This tutorial walks you through configuring three CentOS 7.9 nodes, disabling firewalls, setting hostnames, enabling time sync, establishing password‑less SSH, installing required packages, and using Ansible to clone, configure, and deploy a Ceph Nautilus cluster in about ten minutes.
This guide walks through preparing three CentOS 7.6 servers, configuring system settings, installing Docker and Kubernetes components, initializing the master node, deploying a pod network, adding worker nodes, and setting up the Kubernetes dashboard, providing all necessary commands and troubleshooting tips.
This article provides a comprehensive, step‑by‑step tutorial for setting up a three‑node Ceph storage cluster on CentOS 7.9, covering host configuration, firewall and SELinux settings, package installation, monitor, manager, OSD, MDS, and RGW deployment, along with required keyrings, configuration files, and troubleshooting tips.
This tutorial walks through configuring server hosts, generating TLS certificates with cfssl for etcd and Kubernetes components, deploying an etcd cluster and Kubernetes master services (apiserver, controller‑manager, scheduler) via systemd, setting up kubelet and kube‑proxy on worker nodes, installing Docker, applying Flannel CNI, and adding additional worker nodes to the cluster.
The guide explains how to configure Tencent Cloud Elasticsearch clusters for multi‑AZ high availability by using zone‑aware node attributes, deploying data nodes in multiples of AZs, assigning three dedicated masters across zones, setting replica shards and force‑awareness rules, and safely upgrading single‑AZ clusters without service interruption.
This comprehensive tutorial walks you through installing a multi-node Kubernetes cluster on CentOS 7.7, covering hardware prerequisites, network setup, Etcd deployment, certificate generation with cfssl, installation of Docker, configuration of master components, worker nodes, CNI networking, CoreDNS, and accessing the Kubernetes dashboard.
This article explains etcd’s Raft‑based consensus, why odd‑numbered nodes are recommended, details the leader election process with log excerpts, discusses split‑brain and consistency guarantees, and provides step‑by‑step instructions for generating certificates, deploying an etcd cluster, and using etcdctl commands.
This tutorial walks through setting up a four‑node Kafka cluster—including Zookeeper installation, broker configuration, service startup, replication settings, fault handling, and leader election—using Linux commands and detailed code snippets to help readers build a production‑ready streaming platform.
This tutorial walks through installing Zookeeper and Kafka, configuring broker IDs, listeners, and replication, starting each service, handling firewall rules, and explains Kafka's replication, failure handling, and leader election mechanisms for a production‑grade cluster.
This guide walks through setting up a fault‑tolerant RocketMQ cluster on two CentOS 7 servers, covering installation of Java, NameServer, multiple Master‑Slave brokers in async and sync modes, configuration tweaks, port opening, verification, and optional console deployment.
This article details the evolution of HBase cluster deployment from mixed‑hardware/software setups to fully independent clusters, explains hardware and software considerations, presents memory and region planning, outlines key configuration parameters, and provides Spark integration examples for batch and real‑time queries and writes.
This comprehensive guide explains what etcd is, its Raft‑based architecture, key terminology, read/write flow, leader election, common scenarios such as service discovery and distributed locking, and provides step‑by‑step instructions for single‑node and multi‑node deployments with practical command examples.
This guide explains how to design and deploy a Kafka production cluster—including capacity planning for 1 billion daily messages, hardware sizing, key configuration parameters, command‑line operations, and useful management tools—to achieve reliable high‑throughput streaming.
This guide details how to prepare two RHEL 7.4 nodes, configure a local Yum repository and HTTP server, set up password‑less SSH, adjust SELinux and iptables, distribute configuration files with Ansible, install Docker and a private registry, and finally deploy an OpenShift 3.11 cluster using the openshift‑ansible playbooks.
This guide explains how to set up an Apache Flink cluster on CentOS 7 using three deployment methods—Local, Standalone, and Flink on YARN/Kubernetes—including host configuration, SSH setup, package distribution, configuration file editing, cluster start/stop commands, YARN resource manager concepts, session commands, job submission, fault‑tolerance settings, and log inspection.
This guide outlines host planning for a master and two worker nodes, specifies CentOS, Docker, and Kubernetes version requirements, and provides step‑by‑step deployment instructions—including image download, network initialization, Flannel setup, and verification of pod and node status—illustrated with diagrams and screenshots.
This article explains how a high‑traffic e‑commerce platform uses RabbitMQ for reliable, high‑throughput order processing, covering its core concepts, routing patterns, clustering, high‑availability queues, client support, management tools, and step‑by‑step cluster deployment.
This tutorial introduces Apache Mesos, Zookeeper, and Marathon, explains their core components and coordination mechanisms, and provides detailed, image‑rich step‑by‑step instructions for setting up a pseudo‑cluster, deploying Docker containers, and managing tasks through the Mesos and Marathon web interfaces.
This article walks through installing and configuring a Kubernetes 0.6.2 cluster on CentOS 7, covering core concepts, environment setup, master and minion configuration, deployment of pods, services, replication controllers, and practical testing of load balancing and scaling.
