Apache Hadoop3.1.3编译安装部署lzo压缩指南（照做就可以，别落一步）

安装maven+git（配置编译环境）

maven（安装maven，配置环境变量，修改sitting.xml加阿里云镜像）

tar -zxvf apache-maven-3.6.1-bin.tar.gz

sudo vim /etc/profile.d/maven.sh（配置环境变量）

export MAVEN_HOME=/opt/software/apache-maven-3.6.1
export PATH=$PATH:$MAVEN_HOME/bin
MAVEN_OPTS=-Xmx2048m
export JAVA_HOME MAVEN_HOME MAVEN_OPTS JAVA_BIN PATH CLASSPATH

修改maven源为阿里源或网易源

pwd /opt/software/apache-maven-3.6.1/conf

vim settings.xml，添加以下内容（修改maven源）

<mirrors>
   <mirror>
     <id>nexus-aliyun</id>
     <mirrorOf>central</mirrorOf>
     <name>Nexus aliyun</name>
     <url>http://maven.aliyun.com/nexus/content/groups/public</url>
   </mirror>

   <mirror>
     <id>CN</id>
     <name>OSChina Central</name>
     <url>http://maven.oschina.net/content/groups/public/</url>
     <mirrorOf>central</mirrorOf>
   </mirror>

   <mirror>
     <id>alimaven</id>
     <mirrorOf>central</mirrorOf>
     <name>aliyun maven</name>
     <url>https://maven.aliyun.com/nexus/content/repositories/central/</url>
   </mirror>

   <mirror>
     <id>jboss-public-repository-group</id>
     <mirrorOf>central</mirrorOf>
     <name>JBoss Public Repository Group</name>
     <url>https://repository.jboss.org/nexus/content/groups/public</url>
   </mirror>
</mirrors>

安装git(务必安装)

yum install -y git

编译安装lzo，需要安装以下插件

gcc-c++
zlib-devel
autoconf
automake
libtool

通过yum安装即可，

yum -y install gcc-c++ lzo-devel zlib-devel autoconf automake libtool

1. 下载、安装并编译LZO

wget http://www.oberhumer.com/opensource/lzo/download/lzo-2.10.tar.gz

tar -zxvf lzo-2.10.tar.gz

cd lzo-2.10

./configure -prefix=/usr/local/hadoop/lzo/

make

make install

2. 编译hadoop-lzo源码

2.1 下载hadoop-lzo的源码，下载地址：https://github.com/twitter/hadoop-lzo/archive/master.zip
2.2 解压之后，修改pom.xml

 <hadoop.current.version>3.1.3</hadoop.current.version>

2.3 声明两个临时环境变量

 export C_INCLUDE_PATH=/usr/local/hadoop/lzo/include
 export LIBRARY_PATH=/usr/local/hadoop/lzo/lib 

2.4 编译，进入hadoop-lzo-master，执行maven编译命令

mvn package -Dmaven.test.skip=true

2.5 进入target，hadoop-lzo-0.4.21-SNAPSHOT.jar 即编译成功的hadoop-lzo组件

2.6）将编译好后的hadoop-lzo-0.4.20.jar 放入hadoop-3.1.3/share/hadoop/common/

[later@bigdata101 common]$ pwd
/opt/module/hadoop-3.1.3/share/hadoop/common
[later@bigdata101 common]$ ls
hadoop-lzo-0.4.21-SNAPSHOT.jar

3）同步hadoop-lzo-0.4.21-SNAPSHOT.jar到bigdata102、bigdata103

[later@bigdata101 common]$ xsync.sh hadoop-lzo-0.4.21-SNAPSHOT.jar

4）core-site.xml增加配置支持LZO压缩

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<configuration>
<property>
<name>io.compression.codecs</name>
<value>
org.apache.hadoop.io.compress.GzipCodec,
org.apache.hadoop.io.compress.DefaultCodec,
org.apache.hadoop.io.compress.BZip2Codec,
org.apache.hadoop.io.compress.SnappyCodec,
com.hadoop.compression.lzo.LzoCodec,
com.hadoop.compression.lzo.LzopCodec
</value>
</property>

<property>
    <name>io.compression.codec.lzo.class</name>
    <value>com.hadoop.compression.lzo.LzoCodec</value>
</property>
</configuration>

5）同步core-site.xml到bigdata102、bigdata103

[later@bigdata101 hadoop]$ xsync.sh core-site.xml

6）启动及查看集群，这是我自己写的启动脚本

[later@bigdata101 hadoop-3.1.3]$ hdya.sh start