本地编译Hadoop2.8.0源码总结和问题解决(转自：http://blog.csdn.net/young

编译准备

1、下载所需的软件

先去官网下载hadoop2.8.0源码并解压，打开解压目录下的BUILDING.txt，编译过程和需要的软件其实就是根据这个文档里的描述来的。

(可以通过命令下载：wget http://mirrors.hust.edu.cn/apache/hadoop/common/hadoop-2.8.0/hadoop-2.8.0-src.tar.gz)

Requirements:* Unix System
* JDK 1.7+
* Maven 3.0 or later
* Findbugs 1.3.9 (if running findbugs)
* ProtocolBuffer 2.5.0
* CMake 2.6 or newer (if compiling native code), must be 3.0 or newer on Mac
* Zlib devel (if compiling native code)
* openssl devel ( if compiling native hadoop-pipes and to get the best HDFS encryption performance )
* Jansson C XML parsing library ( if compiling libwebhdfs )
* Linux FUSE (Filesystem in Userspace) version 2.6 or above ( if compiling fuse_dfs )
* Internet connection for first build (to fetch all Maven and Hadoop dependencies)

这是编译所需要的软件，下载戳这里。

包括：

JDK1.7+
maven 3.0 or later
findbugs 1.3.9
protocolBuffer 2.5.0
cmake 2.6
zlib-devel
openssl-devel

根据网友的资料，也需要安装autoconf automake gcc等。

2、安装软件

1> 安装JDK1.7并配置环境变量，这里就不赘述了，具体看前面的文档。

2> 安装各种库

yum -y install svn ncurses-devel gcc*
yum -y install lzo-devel zlib-devel autoconf automake libtool cmake openssl-devel

3> 安装maven

解压安装并配置环境变量，具体目录结构看前面的博客。

tar zxvf apache-maven-3.3.9-bin.tar.gz
vi /etc/profile

在profile文件末尾追加

export MAVEN_HOME=/home/toto/software/apache-maven-3.3.9
export MAVEN_OPTS="-Xms256m -Xmx512m"  (可以不设置)
export PATH=$PATH:$MAVEN_HOME/bin进入/home/toto/software/apache-maven-3.3.9/conf，修改settings.xml中临时产生的本地maven库的位置
<localRepository>/home/toto/software/repo</localRepository>

保存并使环境变量生效， source /etc/profile,输入 mvn -version,有下面输出结果则安装并配置正确。

[root@hadoop ~]# mvn -version
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-11T00:41:47+08:00)
Maven home: /home/toto/software/apache-maven-3.3.9
Java version: 1.8.0_73, vendor: Oracle Corporation
Java home: /usr/local/java/jdk1.8.0_73/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-573.el6.x86_64", arch: "amd64", family: "unix"
[root@hadoop ~]#

4> 安装protocolBuffer

解压安装并配置环境变量。

tar zxvf protobuf-2.5.0.tar.gz
cd /home/toto/software/protobuf-2.5.0
./configure
make
make install

输入protoc --version,有下面输出结果则安装并配置正确。

[hadoop@Master ~]$ protoc --version
libprotoc 2.5.0
[hadoop@Master ~]$

5> 安装findbugs

解压安装并配置环境变量。

unzip findbugs-1.3.9.zip
vi /etc/profile

在profile文件末尾追加

export FINDBUGS_HOME=/home/toto/software/findbugs-1.3.9
export  PATH=$PATH:$FINDBUGS_HOME/bin

保存并使环境变量生效，source /etc/profile,输入findbugs -version,有下面输出结果则安装并配置正确。

[hadoop@Master ~]$ findbugs -version
1.3.9
[hadoop@Master ~]$

开始编译

首先保证主机能上网（虚拟机怎么上网的点这里），在编译过程中网络保持畅通；进入到hadoop2.8.0源码的解压目录下，输入下面命令：

cd /home/toto/software/hadoop-2.8.0-srcmvn package -Pdist,native -DskipTests -Dtar

或者这个

cd /home/toto/software/hadoop-2.8.0-srcmvn package -Pdist,native,docs,src -DskipTests -Dtar

前面只编译本地代码，后者编译本地代码和文档，因此前者速度较快。

接下来就是漫长的等待，等出现这个就说明编译成功。

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Apache Hadoop Main ................................. SUCCESS [  3.533 s]
[INFO] Apache Hadoop Project POM .......................... SUCCESS [  2.023 s]
[INFO] Apache Hadoop Annotations .......................... SUCCESS [  3.679 s]
[INFO] Apache Hadoop Assemblies ........................... SUCCESS [  0.275 s]
[INFO] Apache Hadoop Project Dist POM ..................... SUCCESS [  2.875 s]
[INFO] Apache Hadoop Maven Plugins ........................ SUCCESS [  4.856 s]
[INFO] Apache Hadoop MiniKDC .............................. SUCCESS [  4.340 s]
[INFO] Apache Hadoop Auth ................................. SUCCESS [  4.534 s]
[INFO] Apache Hadoop Auth Examples ........................ SUCCESS [  5.398 s]
[INFO] Apache Hadoop Common ............................... SUCCESS [03:02 min]
[INFO] Apache Hadoop NFS .................................. SUCCESS [ 11.653 s]
[INFO] Apache Hadoop KMS .................................. SUCCESS [ 24.501 s]
[INFO] Apache Hadoop Common Project ....................... SUCCESS [  0.112 s]
[INFO] Apache Hadoop HDFS ................................. SUCCESS [07:28 min]
[INFO] Apache Hadoop HttpFS ............................... SUCCESS [ 41.608 s]
[INFO] Apache Hadoop HDFS BookKeeper Journal .............. SUCCESS [ 10.673 s]
[INFO] Apache Hadoop HDFS-NFS ............................. SUCCESS [  7.225 s]
[INFO] Apache Hadoop HDFS Project ......................... SUCCESS [  0.057 s]
[INFO] hadoop-yarn ........................................ SUCCESS [  0.110 s]
[INFO] hadoop-yarn-api .................................... SUCCESS [03:36 min]
[INFO] hadoop-yarn-common ................................. SUCCESS [ 45.418 s]
[INFO] hadoop-yarn-server ................................. SUCCESS [  0.164 s]
[INFO] hadoop-yarn-server-common .......................... SUCCESS [ 12.942 s]
[INFO] hadoop-yarn-server-nodemanager ..................... SUCCESS [ 19.200 s]
[INFO] hadoop-yarn-server-web-proxy ....................... SUCCESS [  3.315 s]
[INFO] hadoop-yarn-server-applicationhistoryservice ....... SUCCESS [  7.855 s]
[INFO] hadoop-yarn-server-resourcemanager ................. SUCCESS [ 24.347 s]
[INFO] hadoop-yarn-server-tests ........................... SUCCESS [  6.439 s]
[INFO] hadoop-yarn-client ................................. SUCCESS [  6.393 s]
[INFO] hadoop-yarn-server-sharedcachemanager .............. SUCCESS [  3.445 s]
[INFO] hadoop-yarn-applications ........................... SUCCESS [  0.075 s]
[INFO] hadoop-yarn-applications-distributedshell .......... SUCCESS [  2.304 s]
[INFO] hadoop-yarn-applications-unmanaged-am-launcher ..... SUCCESS [  2.026 s]
[INFO] hadoop-yarn-site ................................... SUCCESS [  0.155 s]
[INFO] hadoop-yarn-registry ............................... SUCCESS [  7.255 s]
[INFO] hadoop-yarn-project ................................ SUCCESS [ 11.871 s]
[INFO] hadoop-mapreduce-client ............................ SUCCESS [  0.254 s]
[INFO] hadoop-mapreduce-client-core ....................... SUCCESS [ 26.029 s]
[INFO] hadoop-mapreduce-client-common ..................... SUCCESS [ 25.002 s]
[INFO] hadoop-mapreduce-client-shuffle .................... SUCCESS [  3.792 s]
[INFO] hadoop-mapreduce-client-app ........................ SUCCESS [  7.797 s]
[INFO] hadoop-mapreduce-client-hs ......................... SUCCESS [  5.143 s]
[INFO] hadoop-mapreduce-client-jobclient .................. SUCCESS [  6.771 s]
[INFO] hadoop-mapreduce-client-hs-plugins ................. SUCCESS [  1.837 s]
[INFO] Apache Hadoop MapReduce Examples ................... SUCCESS [  4.513 s]
[INFO] hadoop-mapreduce ................................... SUCCESS [  6.842 s]
[INFO] Apache Hadoop MapReduce Streaming .................. SUCCESS [  4.355 s]
[INFO] Apache Hadoop Distributed Copy ..................... SUCCESS [ 14.910 s]
[INFO] Apache Hadoop Archives ............................. SUCCESS [  2.844 s]
[INFO] Apache Hadoop Rumen ................................ SUCCESS [  6.931 s]
[INFO] Apache Hadoop Gridmix .............................. SUCCESS [  3.937 s]
[INFO] Apache Hadoop Data Join ............................ SUCCESS [  2.499 s]
[INFO] Apache Hadoop Ant Tasks ............................ SUCCESS [  2.268 s]
[INFO] Apache Hadoop Extras ............................... SUCCESS [  2.739 s]
[INFO] Apache Hadoop Pipes ................................ SUCCESS [  5.793 s]
[INFO] Apache Hadoop OpenStack support .................... SUCCESS [  4.444 s]
[INFO] Apache Hadoop Amazon Web Services support .......... SUCCESS [  4.258 s]
[INFO] Apache Hadoop Azure support ........................ SUCCESS [ 47.689 s]
[INFO] Apache Hadoop Client ............................... SUCCESS [ 19.524 s]
[INFO] Apache Hadoop Mini-Cluster ......................... SUCCESS [  0.305 s]
[INFO] Apache Hadoop Scheduler Load Simulator ............. SUCCESS [  5.581 s]
[INFO] Apache Hadoop Tools Dist ........................... SUCCESS [ 25.708 s]
[INFO] Apache Hadoop Tools ................................ SUCCESS [  0.281 s]
[INFO] Apache Hadoop Distribution ......................... SUCCESS [01:53 min]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 24:49 min
[INFO] Finished at: 2015-12-11T20:29:45+08:00
[INFO] Final Memory: 110M/493M
[INFO] ------------------------------------------------------------------------

编译好的文件在../hadoop-dist/target/hadoop-2.8.0.tar.gz下。

最后编译后出的效果：

cd /home/toto/software/hadoop-2.8.0-src/hadoop-dist/target

编译中遇到的问题

错误1

Connection to http://repo.maven.apache.org refused

表示连接maven远程仓库拒绝，此时再运行一下编译命令，就会接着下载jar包。

错误2

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project hadoop-nfs: Compilation failure: Compilation failure:
[ERROR] /home/hadoop/toolkits/hadoop-2.7.1-src/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/oncrpc/XDR.java:[23,30] package org.jboss.netty.buffer does not exist

这个错误估计很少遇到，这是因为我嫌repo.maven.apache.org这个网站比较慢，更改的第三方镜像，导致maven中的settings文件配置错误，后来采用默认的就行，虽然慢点。

错误3

[ERROR] around Ant part ...<exec dir="/opt/soft/hadoop-2.7.1-src/hadoop-hdfs-project/hadoop-hdfs-httpfs/target" executable="sh" failonerror="true">... @ 10:123 in /opt/soft/hadoop-2.7.1-src/hadoop-hdfs-project/hadoop-hdfs-httpfs/target/antrun/build-main.xml
[ERROR] -> [Help 1]

这是由于tomcat的apache-tomcat-6.0.41.tar.gz包太大，没有下载完整，可以到.../hadoop-2.7.1-src/hadoop-hdfs-project/hadoop-hdfs-httpfs/downloads/apache-tomcat-6.0.41.tar.gz这个目录下，删除重新下载。

提醒：
1、有时候编译过程中会出现下载某个包的时间太久，这是由于连接网站的过程中会出现假死，此时按ctrl+c，重新运行编译命令。
2、如果出现缺少了某个文件的情况，则要先清理maven(使用命令 mvn clean) 再重新编译。

====================================

写在最后：

经过了较长时间的折磨，终于成功，可能还是自己比较菜吧，有编译不成功的欢迎留言探讨。