Read spark default in Apache Zeppelin. place this scripts inside of your conf/zeppelin-env.sh

gistfile1.sh

function readSparkConf() {
    SPARK_CONF_PATH="${1}"
    echo "Reading ${SPARK_CONF_PATH}"
    while read line; do
        echo "${line}" | grep -e "^spark[.]" > /dev/null
        if [ $? -ne 0 ]; then
            # skip the line not started with 'spark.'
            continue;
        fi
        SPARK_CONF_KEY=`echo "${line}" | sed -e 's/\(^spark[^ ]*\)[ \t]*\(.*\)/\1/g'`
        SPARK_CONF_VALUE=`echo "${line}" | sed -e 's/\(^spark[^ ]*\)[ \t]*\(.*\)/\2/g'`
        export ZEPPELIN_JAVA_OPTS+=" -D${SPARK_CONF_KEY}=\"${SPARK_CONF_VALUE}\""
    done < ${SPARK_CONF_PATH}
}

readSparkConf /your/apth/to/spark