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/裏面是lzo的so文件（動態庫文件）。
HADOOP_CLASSPATH是用戶的類路徑