大数据常用的环境变量

以下环境变量可以放到/etc/profile或者相应用户下的profile文件中，路径和文件名以你实际为准：

#JAVA
export JAVA_HOME=/usr/java
export JRE_HOME=/usr/java/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib

#SCALA
export SCALA_HOME=/usr/scala

#HADOOP
export HADOOP_HOME=/usr/local/hadoop
#export HADOOP_OPTS="-Djava.library.path=$HADOOP_PREFIX/lib:$HADOOP_PREFIX/lib/native"
export LD_LIBRARY_PATH=$HADOOP_HOME/lib/native
export HADOOP_COMMON_LIB_NATIVE_DIR=/usr/local/hadoop/lib/native
export HADOOP_OPTS="-Djava.library.path=/usr/local/hadoop/lib"
#export HADOOP_ROOT_LOGGER=DEBUG,console

#HIVE
export HIVE_HOME=/usr/local/hive

#HBASE
export HBASE_HOME=/usr/local/hbase

#SQOOP
export SQOOP_HOME=/usr/local/sqoop

#FLUME
export FLUME_HOME=/usr/local/flume

#STORM 
export STORM_HOME=/usr/local/storm

#SPARK
export SPARK_HOME=/usr/local/spark

#PATH
export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$HIVE_HOME/bin:$HBASE_HOME/bin:$SQOOP_HOME/bin:$FLUME_HOME/bin:$STORM_HOME/bin:$SPARK_HOME/bin:$SPARK_HOME/sbin