(新)尚硅谷大数据技术之Hadoop(入门)第5章 Hadoop编译源码(面试重点)

5.1 前期准备工作

  1. 1. CentOS联网

配置CentOS能连接外网。Linux虚拟机ping www.baidu.com 是畅通的

注意:采用root角色编译,减少文件夹权限出现问题

  1. 2. jar包准备(hadoop源码、JDK8、maven、ant 、protobuf)

(1)hadoop-2.7.2-src.tar.gz

(2)jdk-8u144-linux-x64.tar.gz

(3)apache-ant-1.9.9-bin.tar.gz(build工具,打包用的)

(4)apache-maven-3.0.5-bin.tar.gz

(5)protobuf-2.5.0.tar.gz(序列化的框架)

5.2 jar包安装

注意:所有操作必须在root用户下完成

  1. JDK解压、配置环境变量 JAVA_HOME和PATH,验证java-version(如下都需要验证是否配置成功)

[root@hadoop101 software] # tar -zxf jdk-8u144-linux-x64.tar.gz -C /opt/module/

[root@hadoop101 software]# vi /etc/profile

#JAVA_HOME:

export JAVA_HOME=/opt/module/jdk1.8.0_144

export PATH=$PATH:$JAVA_HOME/bin

[root@hadoop101 software]#source /etc/profile

验证命令:java -version

  1. Maven解压、配置 MAVEN_HOME和PATH

[root@hadoop101 software]# tar -zxvf apache-maven-3.0.5-bin.tar.gz -C /opt/module/

[root@hadoop101 apache-maven-3.0.5]# vi conf/settings.xml

<mirrors>

    <!-- mirror

     | Specifies a repository mirror site to use instead of a given repository. The repository that

     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used

     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.

     |

<mirror>

       <id>mirrorId</id>

       <mirrorOf>repositoryId</mirrorOf>

       <name>Human Readable Name for this Mirror.</name>

       <url>http://my.repository.com/repo/path</url>

      </mirror>

     -->

        <mirror>

                <id>nexus-aliyun</id>

                <mirrorOf>central</mirrorOf>

                <name>Nexus aliyun</name>

                <url>http://maven.aliyun.com/nexus/content/groups/public</url>

        </mirror>

</mirrors>

[root@hadoop101 apache-maven-3.0.5]# vi /etc/profile

#MAVEN_HOME

export MAVEN_HOME=/opt/module/apache-maven-3.0.5

export PATH=$PATH:$MAVEN_HOME/bin

[root@hadoop101 software]#source /etc/profile

验证命令:mvn -version

  1. ant解压、配置 ANT _HOME和PATH

[root@hadoop101 software]# tar -zxvf apache-ant-1.9.9-bin.tar.gz -C /opt/module/

[root@hadoop101 apache-ant-1.9.9]# vi /etc/profile

#ANT_HOME

export ANT_HOME=/opt/module/apache-ant-1.9.9

export PATH=$PATH:$ANT_HOME/bin

[root@hadoop101 software]#source /etc/profile

验证命令:ant -version

  1. 安装 glibc-headers 和  g++  命令如下

[root@hadoop101 apache-ant-1.9.9]# yum install glibc-headers

[root@hadoop101 apache-ant-1.9.9]# yum install gcc-c++

  1. 安装make和cmake

[root@hadoop101 apache-ant-1.9.9]# yum install make

[root@hadoop101 apache-ant-1.9.9]# yum install cmake

  1. 解压protobuf ,进入到解压后protobuf主目录,/opt/module/protobuf-2.5.0,然后相继执行命令

[root@hadoop101 software]# tar -zxvf protobuf-2.5.0.tar.gz -C /opt/module/

[root@hadoop101 opt]# cd /opt/module/protobuf-2.5.0/

[root@hadoop101 protobuf-2.5.0]#./configure 

[root@hadoop101 protobuf-2.5.0]# make 

[root@hadoop101 protobuf-2.5.0]# make check 

[root@hadoop101 protobuf-2.5.0]# make install 

[root@hadoop101 protobuf-2.5.0]# ldconfig 

[root@hadoop101 hadoop-dist]# vi /etc/profile

#LD_LIBRARY_PATH

export LD_LIBRARY_PATH=/opt/module/protobuf-2.5.0

export PATH=$PATH:$LD_LIBRARY_PATH

[root@hadoop101 software]#source /etc/profile

验证命令:protoc --version

  1. 安装openssl库

[root@hadoop101 software]#yum install openssl-devel

  1. 安装ncurses-devel库

[root@hadoop101 software]#yum install ncurses-devel

到此,编译工具安装基本完成。