Memcached:The Definitive Guide 第2版 Memcached 权威指南 自学 it 网 ® 燕十八 著 http://www.zixue.it 自学 it 网 高端 PHP 培训 http://www.zixue.it 目 录 第一章:memcached 介绍....................................................................................................................1 1.1 memcached 是什么?.............................................................................................................1 1.2 什么是 NoSQL?...................................................................................................................1 1.3 谁在用 memcached?............................................................................................................1 第二章:memcached 基本使用............................................................................................................2 2.1 linux 下编译 memcached..................................................................................................... 2 2.1.1:准备编译环境............................................................................................................2 2.1.2: 编译 memcached..................................................................................................... 2 2.2 memcached 的启动...............................................................................................................3 2.3 memcached 的连接...............................................................................................................5 2.4 memcached 的命令...............................................................................................................5 第三章 memcached 的内存管理与删除机制.................................................................................. 9 3.1:内存的碎片化.......................................................................................................................9 3.2: slab allocator 缓解内存碎片化........................................................................................... 9 3.3 系统如何选择合适的 chunk?............................................................................................. 9 3.4 固定大小 chunk 带来的内存浪费.................................................................................... 11 3.5 grow factor 调优................................................................................................................. 12 3.6 memcached 的过期数据惰性删除.................................................................................... 13 3.7: memcached 此处用的 lru 删除机制...............................................................................13 3.8 memcached 中的一些参数限制....................................................................................... 13 第四章 编译 PHP 及 memcached 扩展.......................................................................................... 14 4.1 编译 apache+php............................................................................................................... 14 4.2 编译 php-memcache 扩展................................................................................................. 15 4.3 windows 下安装 php-memcached 扩展.............................................................................15 第五章 memcached 实战.................................................................................................................16 5.1 缓存数据库查询结果........................................................................................................16 5.2 中继 MySQL 主从延迟数据.............................................................................................18 第六章 分布式集群算法.................................................................................................................19 6.1 memcached 如何实现分布式?...........................................................................................19 6.2 分布式之取模算法............................................................................................................19 6.3 取模算法对缓存命中率的影响........................................................................................19 6.4 一致性哈希算法原理......................................................................................................21 6.5 一致性哈希对其他节点的影响......................................................................................22 6.6 一致性哈希+虚拟节点对缓存命中率的影响................................................................. 23 6.7 一致性哈希的 PHP 实现................................................................................................ 23 第七章 一致性哈希算法实验课.....................................................................................................26 7.1 实验目的......