Deploy Hadoop to PC Classroom using DRBL

• java is required for Hadoop, so you need to install java runtime or jdk first.

  ~$ echo "deb http://free.nchc.org.tw/debian/ etch non-free" > /tmp/etch-non-free.list
  ~$ sudo mv /tmp/etch-non-free.list /etc/apt/sources.list.d/.
  ~$ sudo apt-get update
  ~$ sudo apt-get install sun-java5-jdk
  

• download Hadoop 0.18.2

  ~$ wget http://ftp.twaren.net/Unix/Web/apache/hadoop/core/hadoop-0.18.2/hadoop-0.18.2.tar.gz
  ~$ tar zxvf hadoop-0.18.2.tar.gz
  

• setup JAVA_HOME environment variable

  ~$ echo "export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun" >> ~/.bash_profile
  ~$ source ~/.bash_profile
  

• edit hadoop-0.18.2/conf/hadoop-env.sh

  hadoop-0.18.2/conf/hadoop-env.sh

  @@ -6 +6 @@
   # remote nodes.
   
   # The java implementation to use.  Required.
  -# export JAVA_HOME=/usr/lib/j2sdk1.5-sun
  +export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
  +export HADOOP_HOME=/home/jazz/hadoop-0.18.2
  +export HADOOP_CONF_DIR=$HADOOP_HOME/conf
   
   # Extra Java CLASSPATH elements.  Optional.
   # export HADOOP_CLASSPATH=

• here is current DRBL setup

            NIC    NIC IP                    Clients
  +------------------------------+
  |         DRBL SERVER          |
  |                              |
  |    +-- [eth0] X.X.X.X        +- to WAN
  |                              |
  |    +-- [eth1] 192.168.61.254 +- to clients group 1 [ 10 clients, their IP
  |                              |             from 192.168.61.1 - 192.168.61.10]
  |    +-- [eth2] 192.168.62.254 +- to clients group 2 [ 11 clients, their IP
  |                              |             from 192.168.62.1 - 192.168.62.11]
  |    +-- [eth3] 192.168.63.254 +- to clients group 3 [ 10 clients, their IP
  |                              |             from 192.168.63.1 - 192.168.63.10]
  |    +-- [eth4] 192.168.64.254 +- to clients group 4 [ 10 clients, their IP
  |                              |             from 192.168.64.1 - 192.168.64.10]
  +------------------------------+
  

• Hadoop will use ssh connections for internal connection, thus we have to do SSH key exchange.

  ~$ ssh-keygen
  ~$ cp .ssh/id_rsa.pub .ssh/authorized_keys
  ~$ sudo apt-get install dsh
  ~$ mkdir -p .dsh
  ~$ nmap -v -sP 192.168.61-63.1-11 | grep '(.*) .* up' | awk '{ print $3 }' | sort -n | sed 's#(##' | sed 's#)##' > .dsh/machines.list"192.168.63.$i" >> .dsh/machines.list; echo "192.168.64.$i" >> .dsh/machines.list; done
  

• edit