硬件: 

Dell PowerEdge SC420 Pentium 4GB RAM 80GBHDD

系统:

CentOS 6.2

下载地址：

ftp://mirror.nandomedia.com/pub/CentOS/6.2/isos/i386/CentOS-6.2-i386-LiveCD.iso

烧制CD

从CD引导启动

安装CentOS 6.2

从桌面单击Install onto Hard Disk Drive

重启

以root登录

软件：

下载java地址：

http://download.oracle.com/otn-pub/java/jdk/7u4-b20/jdk-7u4-linux-i586.rpm

# rpm -ivh {downloadfolder}/jdk-7u4-linux-i586.rpm

安装java 到 /usr/java/jdk1.7.0_04

# java -version

java version "1.7.0_04"

Java(TM) SE Runtime Environment (build1.7.0_04-b20)

Java HotSpot(TM) Client VM (build 23.0-b21,mixed mode, sharing)

# cd

# pwd

/root 

# vi .bashrc

添加以下两行到文本最后

export JAVA_HOME=/usr/java/jdk1.7.0_04

export PATH=${JAVA_HOME}/bin:${PATH}

按键 Esc

输入 : wq

# . ~/.bashrc

下载Hadoop：

http://apache.mirrorcatalogs.com/hadoop/common/hadoop-2.0.0-alpha/hadoop-2.0.0-alpha.tar.gz

# cd /usr

# tar -xvzf {downloadfolder}/hadoop-2.0.0-alpha.tar.gz

# ls /usr/hadoop-2.0.0-alpha

bin include lib LICENSE.txt output sbin

etc input libexec NOTICE.txt README.txtshare

# service sshd status

openssh-daemon (pid xxxx) is running...

如果不能运行则# service sshd restart

# groupadd hadoop

# useradd -g hadoop -m hadoop

# cd /usr/hadoop-2.0.0-alpha

# chown -R hadoop:hadoop

# su - hadoop

# ssh-keygen -t rsa -P ''

当提示需要一个文件夹时，点击回车。

# cat .ssh/id_rsa.pub >>.ssh/authorized_keys

# ssh localhost

登入时将不会提示需要密码

# exit

# whoami

hadoop

# bin/hadoop version

Hadoop 2.0.0-alpha

Subversionhttp://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.0.0-alpha/hadoop-common-project/hadoop-common-r 1338348

Compiled by hortonmu on Wed May 16 01:28:50UTC 2012

From source with checksum954e3f6c91d058b06b1e81a02813303f

# mkdir input

# cpshare/hadoop/common/templates/conf/*.xml input

# bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.0.0-alpha.jargrep input output 'dfs[a-z.]+'

...

INFO input.FileInputFormat: Total inputpaths to process : 6

...

...

12/05/27 03:38:30 INFO mapreduce.Job:Counters: 27

File System Counters

FILE: Number of bytes read=91368

FILE: Number of bytes written=505456

FILE: Number of read operations=0

FILE: Number of large read operations=0

FILE: Number of write operations=0

Map-Reduce Framework

Map input records=32

Map output records=32

Map output bytes=1006

Map output materialized bytes=1076

Input split bytes=133

Combine input records=0

Combine output records=0

Reduce input groups=3

Reduce shuffle bytes=0

Reduce input records=32

Reduce output records=32

Spilled Records=64

Shuffled Maps =0

Failed Shuffles=0

Merged Map outputs=0

GC time elapsed (ms)=50

CPU time spent (ms)=0

Physical memory (bytes) snapshot=0

Virtual memory (bytes) snapshot=0

Total committed heap usage(bytes)=242368512

File Input Format Counters 

Bytes Read=1368

File Output Format Counters 

Bytes Written=830

# ls input/

capacity-scheduler.xml core-site.xmlhadoop-policy.xml hdfs-site.xml mapred-queue-acls.xml mapred-site.xml

{matching the, INFO input.FileInputFormat:Total input paths to process : 6}

# cat output/part-r-00000

3 dfs.datanode.data.dir

2 dfs.namenode.http

2 dfs.namenode.https

1 dfsqa

1 dfsadmin

1 dfs.webhdfs.enabled

1 dfs.umaskmode

1 dfs.support.append

1 dfs.secondary.namenode.keytab.file

1 dfs.secondary.namenode.kerberos.principal

1 dfs.secondary.namenode.kerberos.https.principal

1 dfs.permissions.superusergroup

1 dfs.namenode.secondary.http

1 dfs.namenode.safemode.threshold

1 dfs.namenode.replication.min.

1 dfs.namenode.name.dir

1 dfs.namenode.keytab.file

1 dfs.namenode.kerberos.principal

1 dfs.namenode.kerberos.https.principal

1 dfs.include

1 dfs.https.port

1 dfs.hosts.exclude

1 dfs.hosts

1 dfs.exclude

1 dfs.datanode.keytab.file

1 dfs.datanode.kerberos.principal

1 dfs.datanode.http.address

1 dfs.datanode.data.dir.perm

1 dfs.datanode.address

1 dfs.cluster.administrators

1 dfs.block.access.token.enable

1 dfs

{matching the, Reduce output records=32}

完成，快速安装并核实hadoop 2.0.0 alpha独立版

引用

http://hadoop.apache.org/common/docs/stable/single_node_setup.html