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  1. Apache Whirr (retired)
  2. WHIRR-445

JAVA_HOME is not set / exported by the install script


    • Type: Bug
    • Status: Resolved
    • Priority: Trivial
    • Resolution: Not A Problem
    • Affects Version/s: None
    • Fix Version/s: 0.8.0
    • Component/s: None
    • Labels:
    • Environment:


      JAVA_HOME is not set on the master node in EC2 after launching the cluster. After ssh-ing into the masternode as root, I had to edit the .bashrc file and source it. See below for sample output:

      sri@PeriyaData:~$ ssh -i ~/.ssh/id_rsa_whirr jtv@ec2-174-129-76-176.compute-1.amazonaws.com
      The authenticity of host 'ec2-174-129-76-176.compute-1.amazonaws.com (' can't be established.
      RSA key fingerprint is bd:ba:56:2b:a1:2f:8e:c8:d1:5c:94:23:f7:1a:d2:c0.
      Are you sure you want to continue connecting (yes/no)? yes
      Warning: Permanently added 'ec2-174-129-76-176.compute-1.amazonaws.com,' (RSA) to the list of known hosts.
      Linux ip-10-72-231-30 2.6.32-318-ec2 #38-Ubuntu SMP Thu Sep 1 17:54:33 UTC 2011 i686 GNU/Linux
      Ubuntu 10.04.3 LTS

      Welcome to Ubuntu!

      System information as of Wed Dec 7 21:18:45 UTC 2011

      System load: 0.01 Processes: 66
      Usage of /: 9.8% of 9.84GB Users logged in: 0
      Memory usage: 14% IP address for eth0:
      Swap usage: 0%

      Graph this data and manage this system at https://landscape.canonical.com/
      At the moment, only the core of the system is installed. To tune the
      system to your needs, you can choose to install one or more
      predefined collections of software by running the following

      sudo tasksel --section server

      Get cloud support with Ubuntu Advantage Cloud Guest
      Last login: Wed Dec 7 21:15:08 2011 from 108-90-42-72.lightspeed.sntcca.sbcglobal.net

      jtv@ip-10-72-231-30:~$ java -version
      java version "1.6.0_26"
      Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
      Java HotSpot(TM) Client VM (build 20.1-b02, mixed mode, sharing)

      jtv@ip-10-72-231-30:~$ sudo su
      root@ip-10-72-231-30:/home/users/jtv# hadoop
      Usage: hadoop [--config confdir] COMMAND
      where COMMAND is one of:
      namenode -format format the DFS filesystem
      secondarynamenode run the DFS secondary namenode
      namenode run the DFS namenode
      datanode run a DFS datanode
      dfsadmin run a DFS admin client
      mradmin run a Map-Reduce admin client
      fsck run a DFS filesystem checking utility
      fs run a generic filesystem user client
      balancer run a cluster balancing utility
      jobtracker run the MapReduce job Tracker node
      pipes run a Pipes job
      tasktracker run a MapReduce task Tracker node
      job manipulate MapReduce jobs
      queue get information regarding JobQueues
      version print the version
      jar <jar> run a jar file
      distcp <srcurl> <desturl> copy file or directories recursively
      archive -archiveName NAME <src>* <dest> create a hadoop archive
      daemonlog get/set the log level for each daemon
      CLASSNAME run the class named CLASSNAME
      Most commands print help when invoked w/o parameters.

      root@ip-10-72-231-30:/home/users/jtv# hadoop version
      Error: JAVA_HOME is not set.

      *****LAST FEW LINES OF BASHRC FILE ***********

      1. enable programmable completion features (you don't need to enable
      2. this, if it's already enabled in /etc/bash.bashrc and /etc/profile
      3. sources /etc/bash.bashrc).
        #if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
      4. . /etc/bash_completion
        export HADOOP_HOME=/usr/local/hadoop-0.20.2
        export PATH=$JAVA_HOME/bin:$HADOOP_HOME/bin:$PATH

      root@ip-10-72-231-30:/home/users/jtv# cd /usr/lib/jvm
      root@ip-10-72-231-30:/usr/lib/jvm# ls -l
      total 4
      lrwxrwxrwx 1 root root 19 2011-12-07 21:10 java-6-sun -> java-6-sun-
      drwxr-xr-x 8 root root 4096 2011-12-07 21:10 java-6-sun-

      FIX: I added a line "export JAVA_HOME=/usr/lib/jvm/java-6-sun" in .bashrc and sourced it.
      root@ip-10-72-231-30:/usr/lib/jvm# source ~/.bashrc
      root@ip-10-72-231-30:/usr/lib/jvm# hadoop version
      Hadoop 0.20.2
      Subversion https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20 -r 911707
      Compiled by chrisdo on Fri Feb 19 08:07:34 UTC 2010




            • Assignee:
              savu.andrei Andrei Savu
              s.srini Srivathsan Srinivas
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              • Created: