hadoop-lzo环境变量的设置

export JAVA_HOME=/usr/lib/jvm/java

export HADOOP_HOME=/home/hp/Documents/hadoop

export JRE_HOME=${JAVA_HOME}/jre

#export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib

export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$HADOOP_HOME/lib/hadoop-lzo-0.4.15.jar

export PATH=${JAVA_HOME}/bin:$HADOOP_HOME/bin:$PATH

export JAVA_LIBRARY_PATH=$JAVA_LIBRARY_PATH:$HADOOP_HOME/lib/native:$HADOOP_HOME/lib/native/Linux-i386-32/lib/

export LD_LIBRARY_PATH=$JAVA_LIBRARY_PATH:$LD_LIBRARY_PATH

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/

其中：/usr/local/lib/里面是lzo的so文件（动态库文件）。

HADOOP_CLASSPATH是用户的类路径