Install Hadoop: conf-single-node

conf-single-node.txt

#Add to the end of the ~/.bashrc
# Set Hadoop-related environment variables
export HADOOP_HOME=/usr/local/hadoop
# Set JAVA_HOME (we will also configure JAVA_HOME directly for Hadoop later on)
export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386
# Some convenient aliases and functions for running Hadoop-related commands
unalias fs &> /dev/null
alias fs="hadoop fs"
unalias hls &> /dev/null
alias hls="fs -ls"
# If you have LZO compression enabled in your Hadoop cluster and
# compress job outputs with LZOP (not covered in this tutorial):
# Conveniently inspect an LZOP compressed file from the command
# line; run via:
#
# $ lzohead /hdfs/path/to/lzop/compressed/file.lzo
#
# Requires installed 'lzop' command.
#
lzohead () {
    hadoop fs -cat $1 | lzop -dc | head -1000 | less
}
# Add Hadoop bin/ directory to PATH
export PATH=$PATH:$HADOOP_HOME/bin

<!-- In: conf/core-site.xml -->
<property>
  <name>hadoop.tmp.dir</name>
  <value>/app/hadoop/tmp</value>
  <description>…</description>
</property>
<property>
  <name>fs.default.name</name>
  <value>hdfs://localhost:54310</value>
  <description>…</description>
</property>

<!-- In: conf/mapred-site.xml -->
<property>
  <name>mapred.job.tracker</name>
  <value>localhost:54311</value>
  <description>…</description>
</property>

<!-- In: conf/hdfs-site.xml -->
<property>
  <name>dfs.replication</name>
  <value>1</value>
  <description>…</description>
</property>