系統為ubuntu14.04,32bit，以前一直用官網包（官網為32bit），這次試著自己編譯了一次，大致如下：

1.下載hadoop-2.4.0-src.tar.gz原始碼包

下載完成解壓,得到hadoop原始碼資料夾：hadoop-2.4.0-src

2.安裝編譯所需的軟體：

1).jdk1.7安裝(編譯時切記不要用jdk1.8)：

下載之後，解壓安裝至/usr/local/目錄，並配置環境變數：

export JAVA_HOME=/usr/local/jdk1.7.0_79

expoort JRE_HOME=/usr/local/jdk1.7.9_79/jre

export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

然後退出，source

檢視安裝是否成功：

java -version

2).maven安裝

下載完成後解壓得到apache-maven-3.2.5，安裝至/usr目錄下,並配置環境變數：

export MAVEN_HOME=/usr/apache-maven-3.2.5
export MAVEN_OPTS="-Xms128m -Xmx512m"

export PATH=$MAVEN_HOME/bin:$PATH

然後退出，source

驗證安裝是否成功：

mvn -v

3).Ant 安裝

下載完成後解壓得到apache-ant-1.9.4,安裝至/usr目錄下，配置環境變數：

export ANT_HOME=/usr/apache-ant-1.9.4
export PATH=$ANT_HOME/bin:$PATH

驗證安裝是否成功：

ant -version

4).g++安裝

  sudo apt-get install g++

5).protobuf安裝（hadoop2.4.0適用protobuf2.5.0版本）：

tar xzf protobuf-2.5.0.tar.gz

cd protobuf-2.5.0

 sudo ./configure --prefix=/usr/protobuf（指定的安裝目錄）或者 在所安裝的資料夾中sudo ./configure

 sudo make
 sudo make install

 sudo ldconfig

配置環境變數：

export PROTOC_HOME=/usr/protobuf
export PATH=$PROTOC_HOME/bin:$PATH

export LD_LIBRARY_PATH=/usr/protobuf-2.5.0

然後退出，source

驗證安裝是否成功：

[email protected]:~$ protoc --version
libprotoc 2.5.0
[email protected]:~$ 

6).cmake安裝

 tar xzf cmake-2.8.12.2.tar.gz
 cd cmake-2.8.12.2
 sudo ./bootstrap --prefix=/usr/cmake(指定的安裝目錄)
 sudo make
 sudo make install

配置環境變數：

export CMAKE_HOME=/usr/cmake
export PATH=$CMAKE_HOME/bin:$PATH

7).openssl庫安裝

sudo apt-get install libssl-dev

8).libglib2.0-dev安裝

sudo apt-get install libglib2.0-dev

9).libssl-dev安裝

sudo apt-get install libssl-dev

3.編譯hadoop-2.4.0

cd /hadoop-2.4.0-src

mvn package -Pdist -DskipTests -Dtar  

注意：hadoop-2.4.0-src許可權設定：

sudo chown -R hadoop:hadoop hadoop-2.4.0-src

編譯完成後：

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Apache Hadoop Main ................................. SUCCESS [  4.940 s]
[INFO] Apache Hadoop Project POM .......................... SUCCESS [  2.429 s]
[INFO] Apache Hadoop Annotations .......................... SUCCESS [  3.136 s]
[INFO] Apache Hadoop Assemblies ........................... SUCCESS [  0.521 s]
[INFO] Apache Hadoop Project Dist POM ..................... SUCCESS [  2.996 s]
[INFO] Apache Hadoop Maven Plugins ........................ SUCCESS [  4.248 s]
[INFO] Apache Hadoop MiniKDC .............................. SUCCESS [  2.875 s]
[INFO] Apache Hadoop Auth ................................. SUCCESS [  2.447 s]
[INFO] Apache Hadoop Auth Examples ........................ SUCCESS [  2.249 s]
[INFO] Apache Hadoop Common ............................... SUCCESS [01:41 min]
[INFO] Apache Hadoop NFS .................................. SUCCESS [  5.997 s]
[INFO] Apache Hadoop Common Project ....................... SUCCESS [  0.085 s]
[INFO] Apache Hadoop HDFS ................................. SUCCESS [04:11 min]
[INFO] Apache Hadoop HttpFS ............................... SUCCESS [ 19.371 s]
[INFO] Apache Hadoop HDFS BookKeeper Journal .............. SUCCESS [ 31.596 s]
[INFO] Apache Hadoop HDFS-NFS ............................. SUCCESS [  4.239 s]
[INFO] Apache Hadoop HDFS Project ......................... SUCCESS [  0.054 s]
[INFO] hadoop-yarn ........................................ SUCCESS [  0.073 s]
[INFO] hadoop-yarn-api .................................... SUCCESS [01:43 min]
[INFO] hadoop-yarn-common ................................. SUCCESS [ 52.105 s]
[INFO] hadoop-yarn-server ................................. SUCCESS [  0.114 s]
[INFO] hadoop-yarn-server-common .......................... SUCCESS [  5.712 s]
[INFO] hadoop-yarn-server-nodemanager ..................... SUCCESS [ 56.731 s]
[INFO] hadoop-yarn-server-web-proxy ....................... SUCCESS [  1.851 s]
[INFO] hadoop-yarn-server-applicationhistoryservice ....... SUCCESS [ 14.598 s]
[INFO] hadoop-yarn-server-resourcemanager ................. SUCCESS [ 10.669 s]
[INFO] hadoop-yarn-server-tests ........................... SUCCESS [  2.724 s]
[INFO] hadoop-yarn-client ................................. SUCCESS [  3.387 s]
[INFO] hadoop-yarn-applications ........................... SUCCESS [  0.290 s]
[INFO] hadoop-yarn-applications-distributedshell .......... SUCCESS [  2.537 s]
[INFO] hadoop-yarn-applications-unmanaged-am-launcher ..... SUCCESS [  1.601 s]
[INFO] hadoop-yarn-site ................................... SUCCESS [  0.116 s]
[INFO] hadoop-yarn-project ................................ SUCCESS [  9.501 s]
[INFO] hadoop-mapreduce-client ............................ SUCCESS [  0.075 s]
[INFO] hadoop-mapreduce-client-core ....................... SUCCESS [ 20.997 s]
[INFO] hadoop-mapreduce-client-common ..................... SUCCESS [ 15.518 s]
[INFO] hadoop-mapreduce-client-shuffle .................... SUCCESS [  1.601 s]
[INFO] hadoop-mapreduce-client-app ........................ SUCCESS [  5.851 s]
[INFO] hadoop-mapreduce-client-hs ......................... SUCCESS [  4.736 s]
[INFO] hadoop-mapreduce-client-jobclient .................. SUCCESS [ 16.372 s]
[INFO] hadoop-mapreduce-client-hs-plugins ................. SUCCESS [  1.167 s]
[INFO] Apache Hadoop MapReduce Examples ................... SUCCESS [  3.231 s]
[INFO] hadoop-mapreduce ................................... SUCCESS [  5.312 s]
[INFO] Apache Hadoop MapReduce Streaming .................. SUCCESS [  8.653 s]
[INFO] Apache Hadoop Distributed Copy ..................... SUCCESS [ 23.317 s]
[INFO] Apache Hadoop Archives ............................. SUCCESS [  1.464 s]
[INFO] Apache Hadoop Rumen ................................ SUCCESS [  3.259 s]
[INFO] Apache Hadoop Gridmix .............................. SUCCESS [  2.664 s]
[INFO] Apache Hadoop Data Join ............................ SUCCESS [  1.524 s]
[INFO] Apache Hadoop Extras ............................... SUCCESS [  1.646 s]
[INFO] Apache Hadoop Pipes ................................ SUCCESS [  0.035 s]
[INFO] Apache Hadoop OpenStack support .................... SUCCESS [  3.909 s]
[INFO] Apache Hadoop Client ............................... SUCCESS [  8.041 s]
[INFO] Apache Hadoop Mini-Cluster ......................... SUCCESS [  0.147 s]
[INFO] Apache Hadoop Scheduler Load Simulator ............. SUCCESS [ 13.277 s]
[INFO] Apache Hadoop Tools Dist ........................... SUCCESS [  6.222 s]
[INFO] Apache Hadoop Tools ................................ SUCCESS [  0.024 s]
[INFO] Apache Hadoop Distribution ......................... SUCCESS [ 39.922 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 15:00 min
[INFO] Finished at: 2015-04-19T10:52:55+08:00
[INFO] Final Memory: 126M/391M
[INFO] ------------------------------------------------------------------------
[email protected]:~/hadoop-2.4.0-src$ 

在目錄~/hadoop-2.4.0-src/hadoop-dist/target下有檔案：hadoop-2.4.0.tar.gz，就是我們需要的檔案。

當然這次編譯遇到了許多問題，時間原因只記錄了幾個，詳見我的另一部落格：hadoop2.4.0原始碼編譯問題