前言 ............................................................................... XIII
第 1 章 为什么会有 Kudu ..................................................1
Kudu 为什么重要 .................................................................. 1
易用性驱动接纳度 .................................................................................. 2
新的应用场景 ......................................................................................... 5
物联网 ...........................................................................................................5
现有的实时分析方案 .....................................................................................7
实时处理 .....................................................................................................13
硬件环境 ............................................................................................... 15
Kudu 在大数据生态中的独特位置 ........................................................ 17
与其他生态系统的组件对比 .......................................................................19
与大数据组件对比——HDFS、HBase 和 Cassandra ..................................24
小结 ...................................................................................................... 26
第 2 章 Kudu 简介 ..........................................................27
Kudu 的高层设计 .................................................................................. 29
Kudu 中的角色 ............................................................................................29
master 服务器 ..............................................................................................31
tablet 服务器................................................................................................32
Kudu 中的概念与机制 .......................................................................... 42
热点 .............................................................................................................42
分区 .............................................................................................................44
第 3 章 安装与运行 .........................................................49
安装 ...................................................................................................... 49
使用 Kudu Quickstart VM ...........................................................................49
使用 Cloudera Manager ...............................................................................51
从源代码构建 ..............................................................................................52
软件包 .........................................................................................................53
Cloudera Quickstart VM ..............................................................................53
快速安装 ：3 分钟或者更短 .................................................................. 54
小结 ...................................................................................................... 58
第 4 章 Kudu 的管理 .......................................................59
为 Kudu 做规划 ..................................................................................... 59
master 服务器和 tablet 服务器 .....................................................................60
预写日志 .....................................................................................................65
数据服务器和存储 ......................................................................................68
复制策略（replication strategy） ..................................................................69
部署时的注意事项 ：是采用新集群还是现有集群 ................................ 70
全新的仅有 Kudu 的集群 ............................................................................70
全新的包含 Kudu 的 Hadoop 集群 ..............................................................71
在现有的 Hadoop 集群中添加 Kudu ...........................................................77
tablet 服务器和 master 服务器的 Web UI .............................................. 81
master 服务器 UI 和 tablet 服务器 UI ..........................................................82
master 服务器 UI .........................................................................................83
tablet 服务器 UI ...........................................................................................83
Kudu 命令行接口 .................................................................................. 84
集群 .............................................................................................................84
文件系统 .....................................................................................................86
tablet 副本 ...................................................................................................92
与 Raft 一致性相关的元数据.....................................................................106
添加和删除 tablet 服务器 .................................................................... 107
添加 tablet 服务器 .....................................................................................107
删除 tablet 服务器 .....................................................................................108
安全 .................................................................................................... 109
一个简单的类比 ........................................................................................ 110
Kudu 的安全功能 ...................................................................................... 112
基本的性能调优 .................................................................................. 117
Kudu 的内存限制 ...................................................................................... 117
维护管理器的线程 .................................................................................... 118
监控性能 ................................................................................................... 119
未雨绸缪，远离麻烦 .......................................................................... 119
避免耗尽磁盘空间 .................................................................................... 119
容忍磁盘故障 ............................................................................................120
备份 ...........................................................................................................120
小结 .................................................................................................... 121
第 5 章 Kudu 常用的开发接口 .......................................123
客户端 API .......................................................................................... 124
Kudu Client（客户端）...............................................................................124
Kudu Table ................................................................................................125
Kudu DDL .................................................................................................125
Kudu 扫描器（Scanner）读取模式 ...........................................................126
C API .............................................................................................. 127
Python API .......................................................................................... 130
准备 Python 开发环境 ...............................................................................131
使用 Python 开发 Kudu 应用 .....................................................................131
Java ..................................................................................................... 135
Java 应用 .........................................
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