#!/usr/bin/env bash

# Copyright (C) 2014, Linaro Limited.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# Author: Andrew McDermott <andrew.mcdermott@linaro.org>

# This script creates a baseline file using teragen.
#
# Usage: create-baseline <N>
#
#  where N == number of gigabyte file to create.

THIS_BENCHMARK_DIR="$(cd $(dirname "${BASH_SOURCE[0]}") && pwd -P)"

source $THIS_BENCHMARK_DIR/common.sh

if [ ! -d $THIS_BENCHMARK_DIR/openjdk8-hadoop-LCA14 ]; then
    echo "error: openjdk8-hadoop-LCA14 directory is missing; run: git submodule update --init"
fi

mkdir -p $BENCHMARK_RESULTS_DIR

export JAVA_HOME=/usr

cd $THIS_BENCHMARK_DIR/openjdk8-hadoop-LCA14
. env.sh

which hadoop
which java
java -version
which hdfs

set -eu

stop-all.sh
rm -rf $HOME/hadoop-tmp
hdfs namenode -format -force
start-all.sh
# Need time for the datanodes to materialise.
sleep 30
jps
hadoop fs -mkdir -p /user/$USER
teragen $1 ${1}GB
rm -rf $TERAGEN_BASELINE_DIR/${1}GB
mkdir -p $TERAGEN_BASELINE_DIR
hadoop fs -copyToLocal /user/$USER/${1}GB $TERAGEN_BASELINE_DIR
stop-all.sh