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This article explains how Nginx's master‑slave (primary‑backup) setup, combined with Keepalived and a virtual IP, provides high‑availability for web and API services by automatically detecting failures, shifting the VIP, and allowing the backup server to take over without service interruption.
This article explains how to build a high‑availability, million‑level concurrent architecture by combining Linux Virtual Server (LVS) for layer‑4 load balancing, Nginx for layer‑7 reverse proxy and caching, and Keepalived for VIP failover, including configuration examples and deployment modes.
Learn how to enhance network service high availability by installing Keepalived Exporter, configuring Prometheus to collect its metrics, and adding a Grafana dashboard, with step‑by‑step commands and tips for a robust monitoring solution suitable for enterprises of any size.
This guide walks you through planning, configuring, and deploying a production‑grade Kubernetes cluster with high performance and availability, covering host planning, HA load balancing with keepalived and HAProxy, Harbor setup, node initialization, and essential system tweaks, all illustrated with ready‑to‑run code snippets.
This article presents five expansion strategies—shutdown, write‑stop, log‑based, dual‑write, and smooth 2N—detailing step‑by‑step procedures for MariaDB installation, master‑master replication, dynamic data‑source configuration, and Keepalived high‑availability setup, enabling seamless horizontal scaling and minimal service disruption for large‑scale databases.
This article examines the evolution of database high‑availability architectures in large‑scale internet environments, covering basic direct‑connect setups, scale‑up/scale‑out sharding, master‑slave/master‑master with Keepalived, and advanced solutions such as MHA, Percona XtraDB Cluster, and MySQL Group Replication, plus smooth scaling steps.
This technical guide explains how to scale a sharded database horizontally by introducing five expansion schemes—including shutdown, write‑stop, log‑based, dual‑write, and smooth 2N approaches—covers MariaDB installation, master‑master replication setup, dynamic data‑source configuration with ShardingJDBC, and detailed Keepalived high‑availability configuration for seamless service continuity.
This article explains how to expand a sharded database from three to four nodes, compares five migration schemes—including stop‑service, stop‑write, log‑based, dual‑write, and smooth 2N approaches—and provides step‑by‑step instructions for MariaDB installation, master‑slave configuration, Keepalived high‑availability setup, and dynamic data‑source integration using ShardingJDBC.
This extensive tutorial walks through Nginx concepts, environment setup, reverse‑proxy load balancing, static‑dynamic separation, resource compression, buffering, caching, IP whitelist/blacklist, CORS handling, anti‑hotlinking, large‑file configuration, SSL certificate setup, high‑availability with Keepalived, and key performance optimizations.
This article explains how to set up a high‑availability Nginx service using Keepalived on two CentOS virtual machines, covering installation, configuration of keepalived, health‑check scripts, virtual IP management, and failover testing to ensure continuous service availability.
This article documents a MySQL read‑write splitting architecture, investigates an unexpected slave‑node crash, and provides a step‑by‑step guide to using Keepalived for monitoring and automatically restarting the MySQL container to achieve high availability of the replica.
This article provides a step‑by‑step tutorial on installing Nginx, setting up reverse proxy and various load‑balancing methods, configuring upstream directives, enabling SSL, and building high‑availability clusters using Keepalived and LVS with detailed command examples and configuration snippets.
This article provides a step‑by‑step tutorial on installing Nginx, setting up reverse proxy and various load‑balancing methods, configuring upstream directives, deploying Keepalived for high‑availability failover, and building an LVS‑DR cluster to achieve robust, production‑grade traffic distribution.
This article presents a detailed analysis and step‑by‑step implementation of horizontal database scaling, including sharding strategies, shutdown and stop‑write plans, log‑based migration, dual‑write approaches, and a smooth 2N expansion method, while also covering MariaDB master‑master configuration, dynamic data source addition, and Keepalived high‑availability setup.
This comprehensive guide walks you through installing Docker and containerd, configuring yum repositories, setting up kubeadm/kubelet/kubectl, initializing a multi‑master Kubernetes cluster, enabling Flannel CNI and IPVS, building a Nginx‑Keepalived HA load balancer, deploying the Kubernetes dashboard, configuring NFS storage with a dynamic provisioner, and installing a secure Harbor image registry for private images.
This comprehensive tutorial walks through preparing multiple Linux nodes, installing Docker and containerd, setting up kubeadm, kubelet and kubectl, initializing a HA Kubernetes control plane, configuring Flannel networking, deploying the Kubernetes dashboard, installing Nginx + Keepalived for load balancing, setting up NFS with rsync, provisioning storage via Helm, and finally installing a secure Harbor image registry, all with detailed commands and configuration snippets.
This article provides a step‑by‑step tutorial on configuring Nginx rewrite rules, implementing anti‑hotlinking protection, separating static and dynamic resources, and building a high‑availability architecture using Keepalived with detailed code examples and deployment instructions.
This article uses a restaurant analogy to demystify Keepalived's routing mechanisms, detailing the NAT, TUN, and Direct Routing (DR) modes, their configurations, underlying LVS architecture, performance trade‑offs, and practical deployment considerations for high‑availability load balancing.
This article uses a restaurant analogy to demystify Keepalived’s routing mechanisms, detailing the three routing modes—NAT, TUN, and Direct Routing (DR)—their configurations, underlying principles, advantages, limitations, and practical deployment considerations within load‑balancing environments.
After a month of testing a MySQL dual‑master high‑availability setup, the author details the numerous pitfalls encountered—including primary key collisions, sync failures, and data inconsistencies—and explains why they switched to a simpler master‑slave configuration, providing step‑by‑step instructions for the conversion.