hadoop/src/packages/hadoop-setup-hdfs.sh

#!/usr/bin/env bash

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# this work for additional information regarding copyright ownership.
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#
#     http://www.apache.org/licenses/LICENSE-2.0
#
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bin=`dirname "$0"`
bin=`cd "$bin"; pwd`

if [ "$HADOOP_HOME" != "" ]; then
  echo "Warning: \$HADOOP_HOME is deprecated."
  echo
fi

. "$bin"/../libexec/hadoop-config.sh

echo "Setup Hadoop Distributed File System"
echo
echo "Formatting namenode"
echo
su -c '${HADOOP_PREFIX}/bin/hadoop --config ${HADOOP_CONF_DIR} namenode -format' hdfs
echo
echo "Starting namenode process"
echo
/etc/init.d/hadoop-namenode start
echo
echo "Initialize HDFS file system: "
echo

su -c '${HADOOP_PREFIX}/bin/hadoop --config ${HADOOP_CONF_DIR} dfs -mkdir /user/mapred' hdfs
su -c '${HADOOP_PREFIX}/bin/hadoop --config ${HADOOP_CONF_DIR} dfs -chown mapred:mapred /user/mapred' hdfs
su -c '${HADOOP_PREFIX}/bin/hadoop --config ${HADOOP_CONF_DIR} dfs -mkdir /tmp' hdfs
su -c '${HADOOP_PREFIX}/bin/hadoop --config ${HADOOP_CONF_DIR} dfs -chmod 777 /tmp' hdfs

if [ $? -eq 0 ]; then
  echo "Completed."
else
  echo "Unknown error occurred, check hadoop logs for details."
fi

echo
echo "Please startup datanode processes: /etc/init.d/hadoop-datanode start"