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This article explains the challenges of slow DDL operations in MySQL, introduces TXSQL’s Parallel DDL framework—including Copy, Inplace, and Instant algorithms—details their design, implementation, code examples, and performance evaluations, and compares them with other database solutions.
This article provides a comprehensive overview of Tencent's self‑developed MySQL kernel TXSQL, covering its evolution, overall architecture, columnar storage engine, instant DDL capabilities, enterprise‑grade features, high‑availability mechanisms, performance optimizations, and the rigorous development and testing processes behind the product.
This article reviews Tencent Cloud’s self‑developed MySQL kernel TXSQL, detailing its enterprise‑grade features, evolutionary roadmap, overall and cloud‑native TDSQL‑C architecture, columnar engine for OLAP, instant DDL capabilities, high‑availability mechanisms, performance optimizations, and the rigorous development and release process that underpins its stability.
This article explains the background, principles, architecture, and detailed implementation of Percona's thread pool, and describes TXSQL's dynamic thread‑pool activation, load‑balancing strategies, disconnection optimizations, related configuration parameters, status variables, and a concise summary.
Database auditing records user actions to detect illegal operations, with approaches ranging from application‑layer and transport‑layer monitoring to kernel‑level and plugin solutions; TXSQL’s MySQL‑compatible audit plugin offers both synchronous and asynchronous modes, delivering flexible rule configuration and only 3‑6 % performance overhead, making it a low‑impact, feature‑rich choice for compliance and forensics.
The article details Tencent’s TXSQL (Tencent MySQL) architecture and optimizations—including asynchronous table deletion, DDL NO_WAIT/WAIT, MDL visibility, lock splitting, parallel replication, query push‑down, read‑view enhancements, low‑overhead auditing and KMS‑integrated encryption—highlighting its role as the core engine powering CDB for diverse industries such as gaming, finance, e‑commerce and internal services like WeChat and QQ.
TXSQL is Tencent Cloud’s MySQL‑based kernel, engineered to handle massive scale, improve stability, performance, and security for diverse industries, featuring optimized redo‑logs, thread‑pool handling, encryption, audit plugins, and parallel replication, with a rigorous release process and future plans for engine‑level batch computation and RocksDB integration.
The article provides a comprehensive overview of TXSQL, Tencent's heavily customized MySQL kernel, detailing its motivations, version choices, performance improvements such as read‑view and redo‑log optimizations, added functionalities like multi‑mode operation and distributed locks, stability testing, financial‑grade features, benchmark results against official MySQL releases, upcoming support for MySQL 5.7, and future development directions.