Beginnings of a hadoop upstart script

hadoop-upstart

#http://upstart.ubuntu.com/cookbook/
#http://www.bryanmarty.com/2012/02/setting-nofile-limit-upstart/

description "Hadoop @HADOOP_DAEMON@"
author "Chad Gorshing <gorshing@gmail.com>"

start on runlevel [2345]
stop on runlevel [!2345]

env LOG_FILE="/var/log/hadoop/@HADOOP_DAEMON@.log"
env HADOOP_USER="hadoop"
env HADOOP_HOME="/opt/sbi/hadoop"
env EXE_FILE="/opt/sbi/hadoop/bin/start-dfs.sh"

#limit nofile 32768 32768

pre-start script
    # Check to ensure hadoop still installed
    test -f $EXE_FILE || { stop ; exit 0; }
end script

script
    [ -r /etc/default/hive ] && . /etc/default/hive

    service_name="@HADOOP_DAEMON@"

    [ "$service_name" = "server" ] && service_name="hadoopserver"

    #HADOOP_HOME="`eval echo ~$HADOOP_USER`"

    exec /sbin/start-stop-daemon --start --user $HADOOP_USER --name hadoop-@HADOOP_DAEMON@ \
        --chuid $HADOOP_USER --chdir $HADOOP_HOME --exec $EXE_FILE -- \
        --service $service_name $PORT > $LOG_FILE 2>&1 < /dev/null
end script