由于hadoop-2.6.0.tar.gz安装包是在32位机器上编译的，64位的机器加载本地库.so文件时会出错，比如：
java.lang.UnsatisfiedLinkError: org.apache.hadoop.util.NativeCrc32.nativeComputeChunkedSumsByteArray(II[BI[BIILjava/lang/String;JZ)V
所以需要重新编译
1.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，只能用1.7，否则编译会出错)
下载页面: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
tar -zxvf jdk-7u75-linux-x64.tar.gz -C /usr/local
export JAVA_HOME=/usr/local/jdk1.7.0_75
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
3.安装protobuf
下载protobuf-2.5.0，不能用高版本，否则Hadoop编译不能通过
wget https://protobuf.googlecode.com/files/protobuf-2.5.0.tar.gz 或者 在百度云盘上下载：http://yun.baidu.com/share/link?shareid=830873155&uk=3573928349
tar -zxvf protobuf-2.5.0.tar.gz
cd protobuf-2.5.0
./configure
make
make install
protoc --version
4.安装ANT
wget http://mirror.bit.edu.cn/apache/ant/binaries/apache-ant-1.9.4-bin.tar.gz
tar -zxvf apache-ant-1.9.4-bin.tar.gz -C /usr/local
vi /etc/profile
export ANT_HOME=/usr/local/apache-ant-1.9.4
export PATH=$PATH:$ANT_HOME/bin
5.安装maven
wget http://mirror.bit.edu.cn/apache/maven/maven-3/3.3.1/binaries/apache-maven-3.3.1-bin.tar.gz
tar -zxvf apache-maven-3.3.1-bin.tar.gz -C /usr/local
vi /etc/profile
export MAVEN_HOME=/usr/local/apache-maven-3.3.1
export PATH=$PATH:$MAVEN_HOME/bin
修改配置文件
vi /usr/local/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>http://maven.oschina.net/content/groups/public/</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>http://maven.oschina.net/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>nexus</id>
<name>local private nexus</name>
<url>http://maven.oschina.net/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
在shell下执行，使环境变量生效
source /etc/profile
7.编译 Hadoop2.6.0
wget http://mirror.bit.edu.cn/apache/hadoop/core/hadoop-2.6.0/hadoop-2.6.0-src.tar.gz
cd hadoop-2.6.0-src
mvn package -DskipTests -Pdist,native -Dtar
如果是第一次使用maven，会打印很多如下日志信息
Downloading: http://maven.oschina.net/...
Scanning for projects...
...
[INFO] Apache Hadoop Main ................................. SUCCESS [ 4.590 s]
[INFO] Apache Hadoop Project POM .......................... SUCCESS [ 3.503 s]
[INFO] Apache Hadoop Annotations .......................... SUCCESS [ 5.870 s]
[INFO] Apache Hadoop Assemblies ........................... SUCCESS [ 0.540 s]
[INFO] Apache Hadoop Project Dist POM ..................... SUCCESS [ 3.921 s]
[INFO] Apache Hadoop Maven Plugins ........................ SUCCESS [ 7.731 s]
[INFO] Apache Hadoop MiniKDC .............................. SUCCESS [ 6.805 s]
[INFO] Apache Hadoop Auth ................................. SUCCESS [ 9.008 s]
[INFO] Apache Hadoop Auth Examples ........................ SUCCESS [ 6.991 s]
[INFO] Apache Hadoop Common ............................... SUCCESS [03:12 min]
[INFO] Apache Hadoop NFS .................................. SUCCESS [ 16.557 s]
[INFO] Apache Hadoop KMS .................................. SUCCESS [ 24.476 s]
[INFO] Apache Hadoop Common Project ....................... SUCCESS [ 0.115 s]
[INFO] Apache Hadoop HDFS ................................. SUCCESS [05:09 min]
[INFO] Apache Hadoop HttpFS ............................... SUCCESS [ 40.145 s]
[INFO] Apache Hadoop HDFS BookKeeper Journal .............. SUCCESS [ 15.876 s]
[INFO] Apache Hadoop HDFS-NFS ............................. SUCCESS [ 9.236 s]
[INFO] Apache Hadoop HDFS Project ......................... SUCCESS [ 0.125 s]
[INFO] hadoop-yarn ........................................ SUCCESS [ 0.129 s]
[INFO] hadoop-yarn-api .................................... SUCCESS [02:49 min]
[INFO] hadoop-yarn-common ................................. SUCCESS [01:01 min]
[INFO] hadoop-yarn-server ................................. SUCCESS [ 0.099 s]
[INFO] hadoop-yarn-server-common .......................... SUCCESS [ 25.019 s]
[INFO] hadoop-yarn-server-nodemanager ..................... SUCCESS [ 33.655 s]
[INFO] hadoop-yarn-server-web-proxy ....................... SUCCESS [ 5.761 s]
[INFO] hadoop-yarn-server-applicationhistoryservice ....... SUCCESS [ 13.714 s]
[INFO] hadoop-yarn-server-resourcemanager ................. SUCCESS [ 41.930 s]
[INFO] hadoop-yarn-server-tests ........................... SUCCESS [ 13.364 s]
[INFO] hadoop-yarn-client ................................. SUCCESS [ 17.408 s]
[INFO] hadoop-yarn-applications ........................... SUCCESS [ 0.042 s]
[INFO] hadoop-yarn-applications-distributedshell .......... SUCCESS [ 5.131 s]
[INFO] hadoop-yarn-applications-unmanaged-am-launcher ..... SUCCESS [ 3.710 s]
[INFO] hadoop-yarn-site ................................... SUCCESS [ 0.107 s]
[INFO] hadoop-yarn-registry ............................... SUCCESS [ 12.531 s]
[INFO] hadoop-yarn-project ................................ SUCCESS [ 7.781 s]
[INFO] hadoop-mapreduce-client ............................ SUCCESS [ 0.116 s]
[INFO] hadoop-mapreduce-client-core ....................... SUCCESS [ 47.915 s]
[INFO] hadoop-mapreduce-client-common ..................... SUCCESS [ 38.104 s]
[INFO] hadoop-mapreduce-client-shuffle .................... SUCCESS [ 9.073 s]
[INFO] hadoop-mapreduce-client-app ........................ SUCCESS [01:01 min]
[INFO] hadoop-mapreduce-client-hs ......................... SUCCESS [ 18.149 s]
[INFO] hadoop-mapreduce-client-jobclient .................. SUCCESS [ 9.002 s]
[INFO] hadoop-mapreduce-client-hs-plugins ................. SUCCESS [ 3.222 s]
[INFO] Apache Hadoop MapReduce Examples ................... SUCCESS [ 13.224 s]
[INFO] hadoop-mapreduce ................................... SUCCESS [ 6.571 s]
[INFO] Apache Hadoop MapReduce Streaming .................. SUCCESS [ 9.781 s]
[INFO] Apache Hadoop Distributed Copy ..................... SUCCESS [ 16.254 s]
[INFO] Apache Hadoop Archives ............................. SUCCESS [ 5.302 s]
[INFO] Apache Hadoop Rumen ................................ SUCCESS [ 13.760 s]
[INFO] Apache Hadoop Gridmix .............................. SUCCESS [ 8.858 s]
[INFO] Apache Hadoop Data Join ............................ SUCCESS [ 6.252 s]
[INFO] Apache Hadoop Ant Tasks ............................ SUCCESS [ 4.276 s]
[INFO] Apache Hadoop Extras ............................... SUCCESS [ 6.206 s]
[INFO] Apache Hadoop Pipes ................................ SUCCESS [ 1.945 s]
[INFO] Apache Hadoop OpenStack support .................... SUCCESS [ 12.239 s]
[INFO] Apache Hadoop Amazon Web Services support .......... SUCCESS [ 38.137 s]
[INFO] Apache Hadoop Client ............................... SUCCESS [ 13.213 s]
[INFO] Apache Hadoop Mini-Cluster ......................... SUCCESS [ 0.169 s]
[INFO] Apache Hadoop Scheduler Load Simulator ............. SUCCESS [ 13.206 s]
[INFO] Apache Hadoop Tools Dist ........................... SUCCESS [ 15.248 s]
[INFO] Apache Hadoop Tools ................................ SUCCESS [ 0.162 s]
[INFO] Apache Hadoop Distribution ......................... SUCCESS [01:09 min]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 25:19 min
[INFO] Finished at: 2015-03-26T17:54:10+08:00
[INFO] Final Memory: 106M/402M
[INFO] ------------------------------------------------------------------------
经过漫长的等待编译过程后,编译成功后会打包，放在hadoop-dist/target
#ll
total 528824
drwxr-xr-x 2 root root 4096 Mar 26 17:53 antrun
-rw-r--r-- 1 root root 1874 Mar 26 17:53 dist-layout-stitching.sh
-rw-r--r-- 1 root root 647 Mar 26 17:53 dist-tar-stitching.sh
drwxr-xr-x 9 root root 4096 Mar 26 17:53 hadoop-2.6.0
-rw-r--r-- 1 root root 180222548 Mar 26 17:53 hadoop-2.6.0.tar.gz
-rw-r--r-- 1 root root 2777 Mar 26 17:53 hadoop-dist-2.6.0.jar
-rw-r--r-- 1 root root 361254421 Mar 26 17:54 hadoop-dist-2.6.0-javadoc.jar
drwxr-xr-x 2 root root 4096 Mar 26 17:53 javadoc-bundle-options
drwxr-xr-x 2 root root 4096 Mar 26 17:53 maven-archiver
drwxr-xr-x 2 root root 4096 Mar 26 17:53 test-dir
编译后的文件见百度云盘
然后把lib下native下的文件覆盖掉hadoop下native中文件就ok了
