Hadoop LZO 安装教程
1.安装 hadoop-gpl-compression
1.1 wget http://hadoop-gpl-compression.apache-extras.org.codespot.com/files/hadoop-gpl-compression-0.1.0-rc0.tar.gz
1.2 mv hadoop-gpl-compression-0.1.0/lib/native/Linux-amd64-64/* $HADOOP_HOME/lib/native/Linux-amd64-64/
1.3 cp hadoop-gpl-compression-0.1.0/hadoop-gpl-compression-0.1.0.jar /usr/local/hadoop-1.0.2/lib/
2.安装 lzo
apt-get install gcc
apt-get install lzop
3.在本地测试 可以 执行 压缩及解压缩命令
下载 https://github.com/kevinweil/hadoop-lzo/zipball/master
解压包
export CFLAGS=-m64
export CXXFLAGS=-m64
//用于 hadoop0.20 ，所以1.0未必适用
进行build
ant compile-native tar
将生成的 build/hadoop-lzo-0.4.15.jar cp 到 /usr/local/hadoop-1.0.2/lib
测试解压程序
bin/hadoop jar /usr/local/hadoop-1.0.2/lib/hadoop-lzo-0.4.15.jar com.hadoop.compression.lzo.LzoIndexer /home/hadoop/project_hadoop/aa.html.lzo
