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High Availability

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Mike Chen's Internet Architecture
Mike Chen's Internet Architecture
Jun 9, 2025 · Operations

How Nginx Master‑Slave Architecture Ensures High Availability

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.

FailoverHigh AvailabilityKeepalived
0 likes · 4 min read
How Nginx Master‑Slave Architecture Ensures High Availability
Xiaokun's Architecture Exploration Notes
Xiaokun's Architecture Exploration Notes
Jun 1, 2025 · Operations

Understanding SLA, SLO, and SLI: Key Metrics for High‑Availability Systems

This article explains the differences between SLA, SLO, and SLI, shows how to express user expectations as concrete service level agreements, and introduces essential high‑availability metrics such as availability percentages, MTBF, MTTR, RPO, RTO, WRT, and MTD for reliable system design.

High AvailabilitySLASLI
0 likes · 9 min read
Understanding SLA, SLO, and SLI: Key Metrics for High‑Availability Systems
IT Services Circle
IT Services Circle
Jun 1, 2025 · Databases

Understanding MySQL Dual‑Master Architecture and Replication Modes

This article explains MySQL dual‑master architecture, covering dual‑master replication, master‑slave replication, master‑master with backup nodes, and ring replication, while discussing their advantages, common pitfalls such as loop replication and data inconsistency, and practical solutions to ensure high availability and data integrity.

Dual-MasterHigh AvailabilityMySQL
0 likes · 6 min read
Understanding MySQL Dual‑Master Architecture and Replication Modes
Mike Chen's Internet Architecture
Mike Chen's Internet Architecture
May 28, 2025 · Operations

Designing a Million‑Level Load Balancing Architecture with LVS, Nginx, and Keepalived

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.

High AvailabilityKeepalivedLVS
0 likes · 6 min read
Designing a Million‑Level Load Balancing Architecture with LVS, Nginx, and Keepalived
Amap Tech
Amap Tech
May 27, 2025 · Databases

OceanBase Unitization: Building the Next Generation of Online Map Applications

This paper presents the design, implementation, and experimental evaluation of OceanBase's unitization architecture for large‑scale online map services, demonstrating superior disaster‑recovery, high‑throughput OLTP/OLAP performance, and storage efficiency compared with competing distributed databases.

Distributed DatabaseHigh AvailabilityOceanBase
0 likes · 24 min read
OceanBase Unitization: Building the Next Generation of Online Map Applications
Xiaokun's Architecture Exploration Notes
Xiaokun's Architecture Exploration Notes
May 25, 2025 · Fundamentals

How Consensus, CAP, and BASE Shape High‑Availability Architecture

This article explains the role of consensus algorithms in achieving high‑availability through redundancy and automatic failover, clarifies distributed consistency, explores the CAP theorem and its C component, and introduces the BASE theory as a practical complement for eventual consistency in modern distributed systems.

BASE theoryCAP TheoremConsensus
0 likes · 10 min read
How Consensus, CAP, and BASE Shape High‑Availability Architecture
IT Xianyu
IT Xianyu
May 20, 2025 · Operations

Building a Three‑Server High‑Availability MySQL Cluster with HAProxy on Almalinux

This guide explains why three servers are needed for high availability, walks through hardware and software preparation, network configuration, MySQL master‑slave replication setup, HAProxy load‑balancing, and firewall/SELinux adjustments, providing complete command‑line examples for each step.

AlmaLinuxHAProxyHigh Availability
0 likes · 8 min read
Building a Three‑Server High‑Availability MySQL Cluster with HAProxy on Almalinux
Xiaokun's Architecture Exploration Notes
Xiaokun's Architecture Exploration Notes
May 18, 2025 · Fundamentals

How Distributed Consensus Overcomes the FLP Impossibility Theorem

This article explores how to build fault‑tolerant distributed systems by formalizing consensus, outlines its core properties, explains the FLP impossibility theorem, and shows how algorithms like Raft sidestep its limits through timing constraints and recovery mechanisms.

ConsensusDistributed SystemsFLP theorem
0 likes · 8 min read
How Distributed Consensus Overcomes the FLP Impossibility Theorem
Architect
Architect
Apr 30, 2025 · Databases

Redis Core Architecture, Data Types, Persistence, High Availability, and Performance Optimization

This comprehensive guide explains Redis's core architecture, the underlying implementation of its various data types, persistence mechanisms (RDB and AOF), high‑availability solutions such as replication, Sentinel and Cluster, as well as performance‑monitoring techniques and common optimization strategies.

Data StructuresHigh AvailabilityRedis
0 likes · 48 min read
Redis Core Architecture, Data Types, Persistence, High Availability, and Performance Optimization
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Apr 29, 2025 · Databases

Essential Redis Cluster Configuration Parameters: Required and Optional Settings

This article explains the key Redis cluster configuration options found in redis.conf, detailing required settings such as cluster-enabled, cluster-config-file, and cluster-node-timeout, as well as optional parameters like cluster-slave-validity-factor, migration barrier, full coverage requirement, and read‑when‑down behavior.

ClusterHigh AvailabilityParameters
0 likes · 5 min read
Essential Redis Cluster Configuration Parameters: Required and Optional Settings
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Apr 25, 2025 · Databases

Essential Knowledge Points of Redis Cluster

Redis cluster relies on two ports per node, a hash‑slot based sharding scheme, a master‑slave replication model, and provides eventual consistency, making these four fundamentals essential knowledge for developers and operators to.

ClusterHigh AvailabilityMaster‑Slave
0 likes · 6 min read
Essential Knowledge Points of Redis Cluster
Java Captain
Java Captain
Apr 17, 2025 · Databases

Choosing Between Sharding Middleware and NewSQL Distributed Databases: An Objective Comparison

This article objectively compares middleware‑based sharding with NewSQL distributed databases, examining their architectural differences, transaction models, high‑availability mechanisms, scaling, SQL support, storage engines, and maturity to help practitioners decide which approach best fits their workload and operational constraints.

Database ArchitectureHigh AvailabilityNewSQL
0 likes · 17 min read
Choosing Between Sharding Middleware and NewSQL Distributed Databases: An Objective Comparison
Cognitive Technology Team
Cognitive Technology Team
Apr 13, 2025 · Backend Development

Understanding RocketMQ Master‑Slave Architecture and High‑Availability Mechanisms

This article explains how RocketMQ achieves high availability and data reliability through its master‑slave broker design, covering synchronous and asynchronous replication, flush strategies, transaction messaging, automatic failover with Dledger, and read‑write separation for load balancing in distributed systems.

Distributed SystemsHigh AvailabilityMaster‑Slave
0 likes · 7 min read
Understanding RocketMQ Master‑Slave Architecture and High‑Availability Mechanisms
Cognitive Technology Team
Cognitive Technology Team
Mar 24, 2025 · Databases

Understanding MySQL Replication: Architecture, Binlog Formats, Use Cases, and Best Practices

This article explains MySQL's replication mechanism, detailing master‑slave architecture, key threads, binlog formats (statement, row, mixed), common application scenarios such as backup, read/write splitting, and data migration, and highlights important considerations like network latency, consistency, delay, and security.

High AvailabilityMySQLReplication
0 likes · 7 min read
Understanding MySQL Replication: Architecture, Binlog Formats, Use Cases, and Best Practices
Amap Tech
Amap Tech
Mar 21, 2025 · Mobile Development

Gaode Map Terminal Architecture: Achieving Ultra‑Stable, High‑Performance, and Efficient Mobile Mapping

Gaode Map’s new integrated container architecture, combined with on‑demand loading, package slimming, and multi‑system/device/language support, delivers ultra‑stable, high‑availability navigation with second‑level startup, halved binary size and traffic, enabling efficient, cross‑platform mobile mapping for diverse hardware.

Container ArchitectureHigh AvailabilityPerformance Optimization
0 likes · 12 min read
Gaode Map Terminal Architecture: Achieving Ultra‑Stable, High‑Performance, and Efficient Mobile Mapping
Java Architect Essentials
Java Architect Essentials
Mar 14, 2025 · Databases

Comparing NewSQL Databases with Middleware‑Based Sharding: Advantages, Trade‑offs, and Selection Guidance

This article objectively compares NewSQL distributed databases with traditional middleware‑based sharding solutions, examining their architectures, distributed transaction handling, high‑availability, scaling, storage engines, and ecosystem maturity, and provides guidance on selecting the appropriate approach based on consistency, growth, operational capacity, and performance requirements.

Database ArchitectureHigh AvailabilityNewSQL
0 likes · 19 min read
Comparing NewSQL Databases with Middleware‑Based Sharding: Advantages, Trade‑offs, and Selection Guidance
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Mar 14, 2025 · Databases

All About Redis Cluster: Architecture, Setup, Operations, and High‑Availability

This article provides a comprehensive guide to Redis Cluster, covering its background, overall architecture, deployment steps, configuration templates, cluster creation commands, basic key‑value operations, high‑availability testing, and how to manually assign master‑slave relationships for robust distributed caching.

ClusterDistributedHigh Availability
0 likes · 14 min read
All About Redis Cluster: Architecture, Setup, Operations, and High‑Availability
FunTester
FunTester
Mar 14, 2025 · Operations

Fault Testing: Enhancing System Resilience through Controlled Failure Simulations

The article explains how fault testing—by deliberately injecting failures in a controlled environment—helps identify system weaknesses, validates post‑mortem improvements, and drives architectural optimization, thereby increasing high‑availability and resilience of modern internet services.

High Availabilitychaos engineeringfault testing
0 likes · 8 min read
Fault Testing: Enhancing System Resilience through Controlled Failure Simulations
Top Architect
Top Architect
Mar 13, 2025 · Databases

Choosing Between NewSQL Databases and Middleware‑Based Sharding: Advantages, Trade‑offs and Practical Guidance

The article objectively compares NewSQL distributed databases with middleware‑plus‑sharding solutions, covering architectural differences, distributed transaction handling, high‑availability, scaling, SQL support, storage engines, maturity, and provides a decision‑making checklist to help engineers select the most suitable approach for their workloads.

Distributed DatabasesHigh AvailabilityNewSQL
0 likes · 23 min read
Choosing Between NewSQL Databases and Middleware‑Based Sharding: Advantages, Trade‑offs and Practical Guidance
Code Ape Tech Column
Code Ape Tech Column
Mar 5, 2025 · Backend Development

Design and Evolution of an Enterprise Unified Push Service

The article describes the evolution from modular push modules to a framework‑based and finally a service‑oriented unified push platform, detailing its architecture, functional and non‑functional requirements, component responsibilities, and deployment considerations for high‑performance, scalable enterprise notification systems.

High AvailabilityMicroservicesScalability
0 likes · 14 min read
Design and Evolution of an Enterprise Unified Push Service