mapreduce-test.sh

#!/bin/sh

TMP_DIR=/tmp

HADOOP_BIN_DIR=${HADOOP_MAPRED_HOME}/bin
HADOOP_COMMAND=${HADOOP_BIN_DIR}/hadoop
HADOOP_JAR_COMMAND="${HADOOP_COMMAND} jar"
MAPRED_SHARE_HOME=${HADOOP_MAPRED_HOME}/share/hadoop/mapreduce
HADOOP_EXAMPLE_JAR=${MAPRED_SHARE_HOME}/hadoop*examples*.jar
HADOOP_EXAMPLE_COMMAND="${HADOOP_JAR_COMMAND} ${HADOOP_EXAMPLE_JAR}"
MAPRED_PI_COMMAND="${HADOOP_EXAMPLE_COMMAND} pi 2 1000"

HASH=`uuidgen | cut -c 1-8`

usage(){
    printf "usage: %s -prod\n" `basename $0` 1>&2
}

initialize(){
    echo "initialize()"
    echo "(do nothing)"
}

initialize_dryrun(){
    echo "initialize()"
    echo "(do nothing)"
}

mapred_pi(){
    echo "mapred_pi()"
    ${MAPRED_PI_COMMAND}
}

mapred_pi_dryrun(){
    echo "mapred_pi()"
    echo "${MAPRED_PI_COMMAND}"
}

cleanup(){
    echo "cleanup()"
    echo "(do nothing)"
}

cleanup_dryrun(){
    echo "cleanup()"
    echo "(do nothing)"
}

execute(){
    if [ "${DRYRUN}" == 1 ]; then
	initialize_dryrun
	mapred_pi_dryrun
	cleanup_dryrun
    else
	initialize
	mapred_pi
	cleanup
    fi    
}


if [ $# == 1 ]; then
    DRYRUN=0
elif [ $# == 0 ]; then
    DRYRUN=1
else
    usage
    exit
fi

execute