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HA

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Raymond Ops
Raymond Ops
Apr 26, 2025 · Operations

How to Enable Ceph NFS Service with nfs-ganesha: Step‑by‑Step Guide

This article walks through configuring Ceph to provide NFS services using nfs‑ganesha, covering module checks, cluster creation, export setup, client mounting, data verification, and high‑availability configuration with haproxy and keepalived, complete with command‑line examples.

CephHALinux
0 likes · 7 min read
How to Enable Ceph NFS Service with nfs-ganesha: Step‑by‑Step Guide
Linux Ops Smart Journey
Linux Ops Smart Journey
Aug 4, 2024 · Cloud Native

How to Build a High-Performance, Highly-Available Production Kubernetes Cluster

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.

DockerHAHarbor
0 likes · 12 min read
How to Build a High-Performance, Highly-Available Production Kubernetes Cluster
Top Architect
Top Architect
Mar 10, 2023 · Operations

Implementing Nginx High Availability with Keepalived on Two Virtual Machines

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.

HAHigh AvailabilityKeepalived
0 likes · 9 min read
Implementing Nginx High Availability with Keepalived on Two Virtual Machines
Architect's Guide
Architect's Guide
Dec 5, 2022 · Cloud Native

Step-by-Step Guide to Deploying a High‑Availability Kubernetes Cluster with NFS, Ingress, Dashboard, and Harbor

This comprehensive tutorial walks through preparing the operating system, installing Docker and containerd, configuring yum repositories, initializing a multi‑master HA Kubernetes cluster with IPVS, deploying the Kubernetes dashboard, setting up NFS storage, installing an Ingress controller, and finally installing Harbor with Helm and a custom NFS provisioner, providing all necessary commands and configuration files.

DockerHAHarbor
0 likes · 38 min read
Step-by-Step Guide to Deploying a High‑Availability Kubernetes Cluster with NFS, Ingress, Dashboard, and Harbor
Architect
Architect
Nov 3, 2022 · Cloud Native

Step-by-Step Guide to Deploying a High‑Availability Kubernetes Cluster with Dashboard and Harbor

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.

DashboardHAHarbor
0 likes · 39 min read
Step-by-Step Guide to Deploying a High‑Availability Kubernetes Cluster with Dashboard and Harbor
Big Data Technology Architecture
Big Data Technology Architecture
Jun 14, 2022 · Big Data

Applying Apache DolphinScheduler in a Big Data Platform: Architecture, Migration, and Future Plans

This presentation details the background, redesign, and migration of a large‑scale data platform at Dangbei Network Technology, focusing on the adoption of Apache DolphinScheduler, ClickHouse migration, storage and compute separation, monitoring solutions, and the roadmap for future upgrades and open‑source involvement.

Apache DolphinSchedulerBig DataClickHouse
0 likes · 12 min read
Applying Apache DolphinScheduler in a Big Data Platform: Architecture, Migration, and Future Plans
Aikesheng Open Source Community
Aikesheng Open Source Community
Jan 5, 2022 · Databases

Understanding ProxySQL Configuration Tables for MySQL HA (Read/Write Splitting and Failover)

This article explains ProxySQL's built‑in databases, key configuration tables such as mysql_servers, mysql_users, mysql_replication_hostgroups, mysql_group_replication_hostgroups, and mysql_query_rules, and demonstrates how to set up read/write splitting and automatic failover for MySQL primary‑replica and group replication environments.

DatabaseProxyFailoverHA
0 likes · 14 min read
Understanding ProxySQL Configuration Tables for MySQL HA (Read/Write Splitting and Failover)
IT Architects Alliance
IT Architects Alliance
Dec 1, 2021 · Operations

Implementing High Availability for Nginx with Keepalived on CentOS

This guide explains how to set up a two‑node high‑availability Nginx service on CentOS using Keepalived, covering preparation, installation of Nginx and Keepalived, configuration of VRRP, virtual IP, health‑check scripts, and a failover demonstration.

HAHigh AvailabilityKeepalived
0 likes · 9 min read
Implementing High Availability for Nginx with Keepalived on CentOS
DataFunTalk
DataFunTalk
Sep 10, 2021 · Big Data

Presto High‑Performance Engine Practice at Meitu: Technical Selection, HA Design, and Cross‑Cluster Scheduling

This article details Meitu's adoption of the Presto ad‑hoc ROLAP engine, comparing it with Hive on Spark and Impala, describing enhancements for coordinator high‑availability, and explaining a cross‑cluster scheduling strategy that leverages idle Presto resources to improve overall big‑data workload efficiency.

Big DataCross-Cluster SchedulingData Engineering
0 likes · 16 min read
Presto High‑Performance Engine Practice at Meitu: Technical Selection, HA Design, and Cross‑Cluster Scheduling
Wukong Talks Architecture
Wukong Talks Architecture
Jul 14, 2021 · Operations

Understanding High Availability: Lessons from the Bilibili Outage

This article analyzes Bilibili's recent service disruption, explains the concept and quantitative metrics of high availability, and outlines practical techniques such as rate limiting, isolation, failover, timeout control, circuit breaking, degradation, and multi‑region active‑active deployments to improve system reliability.

HAHigh AvailabilityMTBF
0 likes · 13 min read
Understanding High Availability: Lessons from the Bilibili Outage
DevOps Cloud Academy
DevOps Cloud Academy
Dec 7, 2020 · Operations

How to Upgrade a Single‑Master Kubernetes Cluster to a Multi‑Master High‑Availability Setup

This guide walks through converting a single‑master Kubernetes cluster into a highly available multi‑master deployment by configuring a load‑balancing Nginx front‑end, updating API server certificates with additional SAN entries, adjusting kubeconfig files, and adding extra control‑plane nodes while verifying etcd health.

HAKubernetesNginx
0 likes · 20 min read
How to Upgrade a Single‑Master Kubernetes Cluster to a Multi‑Master High‑Availability Setup
Architects' Tech Alliance
Architects' Tech Alliance
Mar 18, 2019 · Big Data

Understanding HDFS Architecture, NameNode HA, and Read/Write Processes

This article explains the concepts and architecture of HDFS, the high‑availability mechanisms of NameNode including quorum‑based shared storage, the detailed read and write workflows of the distributed file system, and discusses its typical use cases and limitations.

Big DataHAHDFS
0 likes · 16 min read
Understanding HDFS Architecture, NameNode HA, and Read/Write Processes
Tencent Database Technology
Tencent Database Technology
May 15, 2018 · Databases

Improving MySQL Asynchronous Replication by Aligning Read_Master_Log_Pos with Exec_Master_Log_Pos

This article analyzes a MySQL master‑crash scenario where mismatched Read_Master_Log_Pos and Exec_Master_Log_Pos prevent HA failover, explains binlog event structures, and proposes updating Read_Master_Log_Pos only after a full transaction is received to ensure reliable asynchronous replication.

Exec_Master_Log_PosHAMySQL
0 likes · 9 min read
Improving MySQL Asynchronous Replication by Aligning Read_Master_Log_Pos with Exec_Master_Log_Pos
Tencent Cloud Developer
Tencent Cloud Developer
Mar 14, 2018 · Cloud Computing

Business Continuity Solutions on Tencent Cloud: High Availability and Disaster Recovery

Tencent Cloud’s business continuity solutions combine high‑availability clusters, multi‑AZ load balancing, and cross‑region disaster‑recovery architectures—such as CLB‑CVM‑MySQL configurations, CDB hot‑standby instances, DNS‑based failover, and data‑sync services—to ensure continuous operation and rapid recovery from localized or regional failures.

Business ContinuityCloud ArchitectureDatabase
0 likes · 10 min read
Business Continuity Solutions on Tencent Cloud: High Availability and Disaster Recovery
Architect's Tech Stack
Architect's Tech Stack
Jan 17, 2018 · Operations

RabbitMQ Cluster Installation and Configuration Guide

This guide explains how to install RabbitMQ, set up a three-node Erlang-based cluster on CentOS, configure hostnames, Erlang cookies, designate disk and RAM nodes, manage services, enable mirrored queues, and verify cluster status using command‑line tools.

ClusteringErlangHA
0 likes · 9 min read
RabbitMQ Cluster Installation and Configuration Guide
Architecture Digest
Architecture Digest
May 8, 2016 · Databases

MySQL High Availability Architectures: Overview of Common Solutions

This article reviews the main MySQL high‑availability architectures—including shared‑storage SAN, DRBD disk replication, keepalived/heartbeat, MHA, ZooKeeper‑based HA, Galera/PXC clustering, and middleware proxy solutions—detailing their principles, advantages, limitations, and suitability for different business scenarios.

ClusterDatabaseHA
0 likes · 17 min read
MySQL High Availability Architectures: Overview of Common Solutions
Architects' Tech Alliance
Architects' Tech Alliance
Sep 5, 2015 · Cloud Computing

Overview of VMware Storage Path Reliability, vConverter, HA, DRS, FT, vMotion, Storage vMotion, DPM, Networking and Automation Features

This article provides a comprehensive overview of VMware's storage path reliability, pluggable storage architecture, virtual machine conversion tools, high‑availability and resource‑management features such as HA, DRS, FT, vMotion, storage vMotion, DPM, as well as networking components like vDS and VMkernel ports, plus upgrade automation utilities.

HAVMwareVirtualization
0 likes · 9 min read
Overview of VMware Storage Path Reliability, vConverter, HA, DRS, FT, vMotion, Storage vMotion, DPM, Networking and Automation Features