cloud-computing-course/file/assignment3/hadoop/mapred-env.sh

export JAVA_HOME=/usr/java/latest
export HADOOP_MAPRED_LOG_DIR=/var/log/hadoop-mapreduce
export HADOOP_MAPRED_PID_DIR=/var/run/hadoop-mapreduce

export HADOOP_JOB_HISTORYSERVER_HEAPSIZE=1000

export HADOOP_MAPRED_ROOT_LOGGER=INFO,RFA

#export HADOOP_JOB_HISTORYSERVER_OPTS=
#export HADOOP_MAPRED_LOG_DIR="" # Where log files are stored.  $HADOOP_MAPRED_HOME/logs by default.
#export HADOOP_JHS_LOGGER=INFO,RFA # Hadoop JobSummary logger.
#export HADOOP_MAPRED_PID_DIR= # The pid files are stored. /tmp by default.
#export HADOOP_MAPRED_IDENT_STRING= #A string representing this instance of hadoop. $USER by default
#export HADOOP_MAPRED_NICENESS= #The scheduling priority for daemons. Defaults to 0.