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MySQL锁机制/管理(并发锁,行锁,表锁,预加锁,全局锁等等)

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Release: 2016-06-07 16:31:55
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MySQL实验室 1.?MySQL 中并发和隔离控制机制 Meta-data元数据锁:在table cache缓存里实现的,为DDL(Data Definition Language)提供隔离操作。一种特别的meta-data元数据类型,叫Name Lock。(SQL层) 表级table-level数据锁(SQL层) 存储引擎特有机制 ro

MySQL实验室

1.?MySQL中并发和隔离控制机制

  • Meta-data元数据锁:在table cache缓存里实现的,为DDL(Data Definition Language)提供隔离操作。一种特别的meta-data元数据类型,叫Name Lock。(SQL层)
  • 表级table-level数据锁(SQL层)
  • 存储引擎特有机制 — row locks行锁,page locks页锁,table locks表级,版本控制(在引擎中实现)
  • 全局读锁 — FLUSH TABLES WITH READ LOCK(SQL层)

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阅读全文MySQL锁机制/管理(并发锁,行锁,表锁,预加锁,全局锁等等) (1,324 words)


? 谭俊青 发布在 MySQL性能、MySQL Cluster集群、MySQL HA高可用等研究 - MySQL实验室, 2010.
可以任意转载, 但转载时务必以超链接形式标明文章原始出处 和 作者信息。
链接: http://www.mysqlab.net/blog/2010/09/mysql-lock-management/

标签: InnoDB, lock, metadata, Table cache

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