CynosDB | BestHub

Tencent Database Technology

Jan 9, 2020 · Databases

CynosDB: Cloud‑Native Distributed Database Architecture and Performance Optimizations

The article presents an in‑depth technical overview of Tencent Cloud's CynosDB, describing the challenges of traditional MySQL‑based cloud databases, detailing its compute‑storage decoupled architecture, redo‑log based replication, MVCC implementation, performance enhancements, and how these innovations address elasticity, stability, and resource utilization issues.

CynosDBPerformance OptimizationReplication

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CynosDB: Cloud‑Native Distributed Database Architecture and Performance Optimizations

Tencent Cloud Developer

Jun 27, 2019 · Databases

Evolution and Technical Analysis of Tencent Cloud Databases: TDSQL and CynosDB

Tencent Cloud’s database evolution progressed from early open‑source integration to self‑developed, cloud‑native solutions, producing the distributed, high‑availability TDSQL and the compute‑storage‑separated, log‑sinking CynosDB, each featuring advanced scheduling, sharding, cost‑based optimization, and asynchronous log replay to deliver scalable, low‑latency performance for diverse workloads.

CynosDBDatabaseTDSQL

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Evolution and Technical Analysis of Tencent Cloud Databases: TDSQL and CynosDB

Tencent Cloud Developer

Apr 4, 2019 · Cloud Native

Design and Optimization of CynosDB for PostgreSQL: One‑Primary Multi‑Read Architecture

The article details CynosDB’s cloud‑native PostgreSQL design—using compute‑storage separation, log sinking with asynchronous replay, and multi‑version reads—to enable a one‑primary multi‑read architecture that delivers elastic scaling, reduced I/O, stateless instances, and rapid failover and efficient resource utilization through parallel log‑based recovery.

CynosDBPostgreSQLReplication

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Design and Optimization of CynosDB for PostgreSQL: One‑Primary Multi‑Read Architecture

Tencent Cloud Developer

Mar 29, 2019 · Databases

Design of High‑Availability System and Fast Recovery in Tencent CynosDB

Tencent CynosDB achieves high availability and rapid recovery through an external HA service that combines a co‑located monitoring agent, a ZooKeeper‑backed scheduler for fault detection, decision making, and automated switch/rejoin/rebuild actions, and a VDL‑driven distributed storage recovery mechanism that prevents split‑brain scenarios.

Agent‑SchedulerCynosDBDistributed Storage

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Design of High‑Availability System and Fast Recovery in Tencent CynosDB

Tencent Cloud Developer

Mar 27, 2019 · Databases

Technical Overview and Optimizations of Tencent Cloud CynosDB for MySQL

Tencent Cloud’s CynosDB for MySQL separates compute from distributed storage, using a log‑driven, stateless architecture that eliminates local I/O, enables sub‑second failover, 2.5× write performance, lock‑free structures, async group‑commit, compressed logs, fast parallel recovery, and scalable replication, with future plans for external buffer pools and multi‑master support.

Cloud DatabaseCynosDBMySQL

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Technical Overview and Optimizations of Tencent Cloud CynosDB for MySQL

Tencent Cloud Developer

Mar 26, 2019 · Databases

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.

Compute-Storage SeparationCynosDBDistributed Storage

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

Tencent Cloud Developer

Mar 21, 2019 · Cloud Computing

CynosDB Compute‑Intelligent Storage Architecture and High‑Availability Overview

The talk detailed CynosDB’s compute‑intelligent storage and multi‑read architecture, explaining TXSQL, Space Manager, DBStore, and Atlas’s two‑layer distributed storage with three‑replica nodes, high‑availability recovery, snapshot and migration features, and advanced data routing and I/O protocols for robust, fault‑tolerant database services.

CynosDBHigh Availabilitycloud computing

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CynosDB Compute‑Intelligent Storage Architecture and High‑Availability Overview

Tencent Cloud Developer

Mar 5, 2019 · Databases

Technical Sharing on Tencent Cloud's CynosDB: Architecture, High Availability, and Distributed Storage

Tencent Cloud’s CynosDB, a cloud‑native MySQL and PostgreSQL compatible database, uses a compute‑storage separation architecture with computable intelligent storage, primary‑multiple‑read design, and distributed CynosStore to deliver high availability, fast recovery, elastic scaling, and pay‑as‑you‑go pricing for developers.

CynosDBDistributed StorageHigh Availability

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Technical Sharing on Tencent Cloud's CynosDB: Architecture, High Availability, and Distributed Storage

Tencent Cloud Developer

Dec 20, 2018 · Databases

CynosDB Architecture and Optimization: A PostgreSQL-Compatible NewSQL Database

CynosDB, Tencent’s PostgreSQL‑compatible NewSQL service, separates compute and storage, uses a log‑based distributed CynosStore with idempotent logs, offloads CRC checks, and implements async table extension, eliminating full‑page writes and dirty‑page flushing to deliver scalable, cost‑effective performance while preserving PostgreSQL features.

CynosDBDistributed StorageLog System Optimization

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CynosDB Architecture and Optimization: A PostgreSQL-Compatible NewSQL Database

Tencent Cloud Developer

Dec 14, 2018 · Databases

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.

CynosDBSCMScheduling

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

Tencent Cloud Developer

Dec 3, 2018 · Databases

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.

CynosDBDistributed DatabaseLog Sinking

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Architecture and Design of Tencent Cloud CynosDB and CynosFS

Tencent Cloud Developer

Sep 11, 2018 · Databases

CynosDB Architecture and Core Mechanisms: A Comprehensive Technical Overview

CynosDB is Tencent Cloud’s high‑performance, highly‑available NewSQL distributed database that uses a shared‑storage architecture with primary and replica instances, log‑structured storage, RDMA/SPDK transmission, Raft consensus, SSI MVCC, two‑phase locking, and state‑machine replication to provide elastic scaling, fast recovery, and cost‑effective enterprise data management.

CynosDBDistributed DatabaseMVCC

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CynosDB Architecture and Core Mechanisms: A Comprehensive Technical Overview

Tencent Cloud Developer

Jun 12, 2018 · Cloud Native

CynosDB: Tencent Cloud's Next-Generation Enterprise Distributed Cloud Database

CynosDB, Tencent Cloud’s next‑generation enterprise distributed database, re‑architects MySQL with compute‑storage separation, distributed high‑availability storage, and RDMA‑accelerated low‑latency replication, delivering extreme performance, scalability, sub‑millisecond response times, and nine‑nine data reliability for cloud‑native applications.

Cloud DatabaseCynosDBDistributed Storage

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CynosDB: Tencent Cloud's Next-Generation Enterprise Distributed Cloud Database