Hadoop不提供64位编译好的版本，只能用源码自行编译64位版本。学习一项技术从安装开始，学习hadoop要从编译开始。
1.操作系统编译环境
yum install cmake lzo-devel zlib-devel gcc gcc-c++ autoconf automake libtool ncurses-devel openssl-devel libXtst
2.安装JDK
下载JDK1.7，注意只能用1.7，否则编译会出错
Oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
tar zxvf jdk-7u75-linux-x64.tar.gz -C /app
export JAVA_HOME=/app/jdk1.7.0_75
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
PATH=$PATH:$JAVA_HOME/bin
3.安装protobuf
下载protobuf-2.5.0，不能用高版本，否则Hadoop编译不能通过
wget https://protobuf.googlecode.com/files/protobuf-2.5.0.tar.gz
tar xvf protobuf-2.5.0.tar.gz
cd protobuf-2.5.0
./configure
make
make install
ldconfig
protoc --version
4.安装ANT
wget
tar zxvf apache-ant-1.9.4-bin.tar.gz -C /app
vi /etc/profile
export ANT_HOME=/app/apache-ant-1.9.4
PATH=$PATH:$ANT_HOME/bin
5.安装maven
wget
tar zxvf apache-maven-3.3.1-bin.tar.gz -C /app
vi /etc/profile
export MAVEN_HOME=/app/apache-maven-3.3.1
export PATH=$PATH:$MAVEN_HOME/bin
修改配置文件
vi /app/apache-maven-3.3.1/conf/settings.xml
更改maven资料库，在<mirrors></mirros>里添加如下内容：
<mirror>
<id>nexus-osc</id>
<mirrorOf>*</mirrorOf>
<name>Nexusosc</name>
<url></url>
</mirror>
在<profiles></profiles>内新添加
<profile>
<id>jdk-1.7</id>
<activation>
<jdk>1.7</jdk>
</activation>
<repositories>
<repository>
<id>nexus</id>
<name>local private nexus</name>
<url></url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>nexus</id>
<name>local private nexus</name>
<url></url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
6.安装findbugs（非必须）
wget ?download
tar zxvf findbugs-3.0.1.tar.gz -C /app
vi /etc/profile
export FINDBUGS_HOME=/app/findbugs-3.0.1
PATH=$PATH:$FINDBUGS_HOME/bin
export PATH
注意：
最终，在/etc/profile中环境变量PATH的设置如下：
PATH=$PATH:$JAVA_HOME/bin:$ANT_HOME/bin:$MAVEN_HOME/bin:$FINDBUGS_HOME/bin
export PATH
在shell下执行，使环境变量生效
. /etc/profile
7.编译 Hadoop2.6.0
wget
cd hadoop-2.6.0-src
mvn package -DskipTests -Pdist,native -Dtar
[INFO] Reactor Summary:
[INFO]
[INFO] Apache Hadoop Main ................................. SUCCESS [ 4.401 s]
[INFO] Apache Hadoop Project POM .......................... SUCCESS [ 3.864 s]
[INFO] Apache Hadoop Annotations .......................... SUCCESS [ 7.591 s]
[INFO] Apache Hadoop Assemblies ........................... SUCCESS [ 0.535 s]
[INFO] Apache Hadoop Project Dist POM ..................... SUCCESS [ 3.585 s]
[INFO] Apache Hadoop Maven Plugins ........................ SUCCESS [ 6.623 s]
[INFO] Apache Hadoop MiniKDC .............................. SUCCESS [ 4.722 s]
[INFO] Apache Hadoop Auth ................................. SUCCESS [ 7.787 s]
[INFO] Apache Hadoop Auth Examples ........................ SUCCESS [ 5.500 s]
[INFO] Apache Hadoop Common ............................... SUCCESS [02:47 min]
[INFO] Apache Hadoop NFS .................................. SUCCESS [ 12.793 s]
[INFO] Apache Hadoop KMS .................................. SUCCESS [ 20.443 s]
[INFO] Apache Hadoop Common Project ....................... SUCCESS [ 0.111 s]
[INFO] Apache Hadoop HDFS ................................. SUCCESS [04:35 min]
[INFO] Apache Hadoop HttpFS ............................... SUCCESS [ 29.896 s]
[INFO] Apache Hadoop HDFS BookKeeper Journal .............. SUCCESS [ 11.100 s]
[INFO] Apache Hadoop HDFS-NFS ............................. SUCCESS [ 8.262 s]
[INFO] Apache Hadoop HDFS Project ......................... SUCCESS [ 0.069 s]
[INFO] hadoop-yarn ........................................ SUCCESS [ 0.066 s]
[INFO] hadoop-yarn-api .................................... SUCCESS [02:05 min]
[INFO] hadoop-yarn-common ................................. SUCCESS [ 46.132 s]
[INFO] hadoop-yarn-server ................................. SUCCESS [ 0.123 s]
[INFO] hadoop-yarn-server-common .......................... SUCCESS [ 19.166 s]
[INFO] hadoop-yarn-server-nodemanager ..................... SUCCESS [ 25.552 s]
[INFO] hadoop-yarn-server-web-proxy ....................... SUCCESS [ 5.456 s]
[INFO] hadoop-yarn-server-applicationhistoryservice ....... SUCCESS [ 11.781 s]
[INFO] hadoop-yarn-server-resourcemanager ................. SUCCESS [ 30.557 s]
[INFO] hadoop-yarn-server-tests ........................... SUCCESS [ 9.765 s]
[INFO] hadoop-yarn-client ................................. SUCCESS [ 14.016 s]
[INFO] hadoop-yarn-applications ........................... SUCCESS [ 0.101 s]
[INFO] hadoop-yarn-applications-distributedshell .......... SUCCESS [ 4.116 s]
[INFO] hadoop-yarn-applications-unmanaged-am-launcher ..... SUCCESS [ 2.993 s]
[INFO] hadoop-yarn-site ................................... SUCCESS [ 0.093 s]
[INFO] hadoop-yarn-registry ............................... SUCCESS [ 9.036 s]
[INFO] hadoop-yarn-project ................................ SUCCESS [ 6.557 s]
[INFO] hadoop-mapreduce-client ............................ SUCCESS [ 0.267 s]
[INFO] hadoop-mapreduce-client-core ....................... SUCCESS [ 36.775 s]
[INFO] hadoop-mapreduce-client-common ..................... SUCCESS [ 28.049 s]
[INFO] hadoop-mapreduce-client-shuffle .................... SUCCESS [ 7.285 s]
[INFO] hadoop-mapreduce-client-app ........................ SUCCESS [ 17.333 s]
[INFO] hadoop-mapreduce-client-hs ......................... SUCCESS [ 15.283 s]
[INFO] hadoop-mapreduce-client-jobclient .................. SUCCESS [ 7.110 s]
[INFO] hadoop-mapreduce-client-hs-plugins ................. SUCCESS [ 3.843 s]
[INFO] Apache Hadoop MapReduce Examples ................... SUCCESS [ 12.559 s]
[INFO] hadoop-mapreduce ................................... SUCCESS [ 6.331 s]
[INFO] Apache Hadoop MapReduce Streaming .................. SUCCESS [ 45.863 s]
[INFO] Apache Hadoop Distributed Copy ..................... SUCCESS [ 46.304 s]
[INFO] Apache Hadoop Archives ............................. SUCCESS [ 3.575 s]
[INFO] Apache Hadoop Rumen ................................ SUCCESS [ 12.991 s]
[INFO] Apache Hadoop Gridmix .............................. SUCCESS [ 10.105 s]
[INFO] Apache Hadoop Data Join ............................ SUCCESS [ 5.021 s]
[INFO] Apache Hadoop Ant Tasks ............................ SUCCESS [ 3.804 s]
[INFO] Apache Hadoop Extras ............................... SUCCESS [ 5.298 s]
[INFO] Apache Hadoop Pipes ................................ SUCCESS [ 10.290 s]
[INFO] Apache Hadoop OpenStack support .................... SUCCESS [ 9.220 s]
[INFO] Apache Hadoop Amazon Web Services support .......... SUCCESS [11:12 min]
[INFO] Apache Hadoop Client ............................... SUCCESS [ 10.714 s]
[INFO] Apache Hadoop Mini-Cluster ......................... SUCCESS [ 0.143 s]
[INFO] Apache Hadoop Scheduler Load Simulator ............. SUCCESS [ 7.664 s]
[INFO] Apache Hadoop Tools Dist ........................... SUCCESS [ 29.970 s]
[INFO] Apache Hadoop Tools ................................ SUCCESS [ 0.057 s]
[INFO] Apache Hadoop Distribution ......................... SUCCESS [ 49.425 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 32:26 min
[INFO] Finished at: 2015-03-19T19:56:40+08:00
[INFO] Final Memory: 99M/298M
[INFO] ------------------------------------------------------------------------