如果你需要維護大型而且復雜的Hadoop集群的話，《Hadoop操作手冊(影印版)》是**必需的。隨著Hadoop變成數據中心裡大規模數據處理的行業標準，操作手冊方面的需求急劇增長。薩默爾，cloudera公司的首席方案架構師，在本書中為你展示了產品級Hadoop的運行細節，從規劃、安裝和配置繫統到提供可持續的維護管理。

如果你需要維護大型而且復雜的Hadoop集群的話 ，《Hadoop操作手冊(影印版)》是絕對必需的。隨著 Hadoop變成數據中心裡大規模數據處理的行業標準， 操作手冊方面的需求急劇增長。薩默爾，cloudera公 司的首席方案架構師，在本書中為你展示了產品級 Hadoop的運行細節，從規劃、安裝和配置繫統到提供 可持續的維護管理。 《Hadoop操作手冊(影印版)》這本操作指南並沒 有列舉每種可能的場景，它更注重實效，描述了在重 要部署中的各項步驟。 本書內容： HDFS和MapRedLice概覽：它們存在的原因和原理 ； 從硬件和OS選擇到網絡需求來規劃Hadoop部署； 根據重要屬性列表來學習搭建和配置細節； 通過在多個組中共享集群來管理資源； 獲取最常見的集群維護任務運行手冊； 監控Hadoop集群——以及學習基於實際例子的故 障檢測； 使用基礎工具和技術來處理備份和災難性故障。

Preface
1．Introduction
2．HDFS
Goals and Motivation
Design
Daemons
Reading and Writing Data
The Read Path
The Write Path
Managing Filesystem Metadata
Namenode High Availability
Namenode Federation
Access and Integration
Command—Line Tools
FUSE
REST Support
3．MapReduce
The Stages of MapReduce
Introducing Hadoop MapReduce
Daemons
When It All Goes Wrong
YARN
4．Planning a Hadoop Cluster
Picking a Distribution and Version of Hadoop
Apache Hadoop
Cloudera’S Distribution Including Apache Hadoop
What Should I Use?
Hardware Selection
Master Hardware Selection
Worker Hardware Selection
Cluster Sizing
Blades，SANs，and Virtualization
Operating System Selection and Preparation
Deployment Layout
Software
Hostnames．DNS．and Identmcation
Users，Groups，and Privileges
Kernel Tuning
vm．swappiness
vm．overcommit_memory
Disk Configuration
Choosing a Filesystem
Mount Options
Network Design
Network Usage in Hadoop：A Review
1 Gb versus 10 Gb Networks
Typical Network Topologies
5．Installation andConfiguration
Installing Hadoop
Apache Hadoop
CDH
Configuration：An 0verview
The Hadoop XML Configuration Files
Environment Variables and Shell Scripts
Logging Configuration
HDFS
Identification and Location
Optimization and Tuning
Formatting the Namenode
Creating a／tmp Directory
Namenode High Availability
Fencing Options
Basic Configuration
Automatic Failover Configuration
Format and Bootstrap the Namenodes
Namenode Federation
MapReduce
Identification and Location
Optimization and Tuning
Rack Topology
Security
6．Identity，Authentication，and Authorization
Identity
Kerberos and Hadoop
Kerberos：A Refresher
Kerberos Support in Hadoop
Authorization
HDFS
MapReduce
Other Tools and Systems
Tying It Together
7．ResojJrceManagement
What Is Resource Management?
HDFS Quotas
MapReduce Schedulers
The FIFO Scheduler
The Fair Scheduler
The Capacity Scheduler
The Future
8．ClusterMaintenance
Managing Hadoop Processes
Starting and Stopping Processes with Into Scripts
Starting and Stopping Processes Manually
HDFS Maintenance Tasks
Adding a Datanode
Decommissioning a Datanode
Checking Filesystem Integrity with fsck
Balancing HDFS Block Data
Dealing with a Failed Disk
MapReduce Maintenance Tasks
Adding a Tasktracker
Decommissioning a Tasktracker
Killing a MapReduce Job
Killing a MapReduce Task
Dealing with a Blacklisted Tasktracker
9．Troubleshooting
Differential Diagnosis Applied to Systems