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Databases Mar 18, 2020 vivo Internet Technology

Vivo Feature Storage Practice: Architecture, Design, and Future Directions Using Nebula Graph

Vivo’s feature‑storage platform, built on Nebula Graph’s Raft‑based, storage‑compute‑separated architecture and exposed via Redis‑compatible proxies, meets massive, low‑latency AI data demands while offering strong consistency, horizontal scalability, backup, active‑active replication, and a roadmap toward general‑purpose KV, cloud‑native integration, and advanced storage engines.

ScalabilityDatabaseDistributed StorageRaftFeature StoreKVNebula Graph

Databases Mar 17, 2020 Efficient Ops

Mastering etcd: From Basics to Cluster Deployment and Real‑World Use Cases

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.

Kubernetesservice discoveryRaftetcdcluster deploymentdistributed key-value store

Backend Development Nov 9, 2019 Architecture Digest

Design and Implementation of eBay's Next‑Generation Million‑TPS Core Accounting System

The article details eBay's 2018‑2020 design, performance testing, and fault‑tolerance architecture of a next‑generation core accounting system capable of handling millions of transactions per second, covering system goals, multi‑region deployment, event‑sourcing, Raft consensus, scalability optimizations, and the planned open‑source release.

scalabilitydistributed architecturefault toleranceevent sourcingpayment systemRaft consensushigh TPS

Databases Nov 8, 2019 58 Tech

Design and Optimization Practices of 58.com Distributed KV Storage System (WTable)

The article details the three‑stage evolution of 58.com’s distributed key‑value storage system WTable, covering its initial architecture, performance and operational optimizations, and the introduction of NewSQL‑style strong consistency and Raft‑based replication to improve scalability and reliability.

performance optimizationsystem architectureNewSQLdistributed storagekey-value storestrong consistency

Databases Aug 29, 2019 JD Retail Technology

Design and Architecture of CB‑SQL: A Cloud‑Native Distributed Database

The article explains CB‑SQL's cloud‑native distributed database architecture, covering range‑based sharding, metadata management, hybrid logical clocks, pessimistic distributed transactions with SSI, Raft‑based strong consistency, and horizontal scalability for petabyte‑scale workloads.

cloud-nativeshardingDistributed Databasedistributed transactionsRaftHLC

Databases Aug 27, 2019 Qunar Tech Salon

Tencent Financial Technology's Distributed MySQL Architecture for Financial-Grade Services

The article describes how Tencent Financial Technology (FiT) built a globally largest, financial‑grade distributed MySQL cluster with multi‑active data‑center architecture, Raft‑based failover, priority‑driven switching, and automated backup to achieve 99.999% availability for massive payment workloads.

high-availabilityDistributed DatabaseMySQLReplicationTencentRaftFinancial Technology

Databases May 7, 2019 Tencent Cloud Developer

A New Era of Cluster Coordination in Elasticsearch 7.0

Elasticsearch 7.0 replaces Zen Discovery with an automatic, quorum‑based cluster‑coordination subsystem that elects master‑eligible nodes, simplifies bootstrapping via cluster.initial_master_nodes, supports safe rolling upgrades, and provides robust fault tolerance through a consensus protocol similar to Paxos or Raft.

ElasticsearchUpgradeDistributed Consensus7.0Cluster Coordination

Databases Mar 26, 2019 Tencent Cloud Developer

Technical Overview of Tencent Cloud CynosDB Distributed Storage and Compute‑Storage Separation Architecture

The Beijing technical exchange detailed Tencent Cloud CynosDB’s compute-storage separation architecture, explaining how CynosStore’s block and file-system layers asynchronously persist write-ahead logs via Raft, provide multi-transaction atomicity, continuous snapshots, and rapid recovery, while benchmarks demonstrate high log-throughput and the Q&A covered tenancy, failover, and scaling.

cloud nativedatabase architectureNewSQLdistributed storageCynosDBCompute-Storage Separation

Databases Dec 14, 2018 Tencent Cloud Developer

CynosDB Storage Cluster Manager (SCM): Architecture, Data Model, and Scheduling Mechanisms

CynosDB’s Storage Cluster Manager (SCM) orchestrates storage utilization by maintaining pool‑SG relationships in Etcd, using Raft for leader election, exposing HTTP APIs, and running heartbeat‑driven pool and segment‑group schedulers that allocate, expand, contract, and balance SG replicas across regions, zones, racks, and hosts.

schedulingSCMdatabaseClouddistributed storageCynosDB

Databases Dec 3, 2018 Tencent Cloud Developer

Architecture and Design of Tencent Cloud CynosDB and CynosFS

Tencent Cloud’s CynosDB uses a shared‑storage, primary‑multiple‑replica architecture built on the user‑space distributed file system CynosFS, separating compute from elastic block storage, sinking write‑ahead logs for asynchronous replay, and employing MVCC with Raft‑replicated segments to achieve high‑availability, scalable, and cost‑effective MySQL/PostgreSQL‑compatible performance.

Database Architecturedistributed databaseCloud StorageMVCCCynosDBLog Sinking

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