Problem to set up the JAVA_HOME environment

LinpusKelvin · 05-13-2010, 04:42 AM

Hi,

I tried to install the nutchwax and hadoop as a prequisite for the wera.

Problem:
localhost: Permission denied (publickey,gssapi-with-mic,password).
starting jobtracker, logging to /root/hadoop-0.20.2/bin/../logs/hadoop-root-jobtracker-localhost.localdomain.out
Error: JAVA_HOME is not set.

source code:
tar xfz cd hadoop-0.20.2.tar.gz
JRE_HOME=/usr/java/jre1.6.0_20; export JRE_HOME
cd hadoop-0.20.2/bin
./start-all.sh

Anythings wrong with the code?

Thanks in advance and hope to hear from u soon

alli_yas · 05-13-2010, 05:13 AM

Hi

I've never used the applications you mention, however; generally most Java applications and/or app servers require you to set the JAVA_HOME environment variable.

So basically add something similar to the below to your .bash_profile:

Code:

JAVA_HOME=/my/path/to/java/jdk1.6.0_19
export $JAVA_HOME
PATH=$PATH:$JAVA_HOME/bin

The above basically sets your JAVA_HOME as well as the path to your JRE binary.

Cheers,
Yas

ajeetsinghraina · 05-13-2010, 05:29 AM

Don't forget to run:

#bash

or

#source /etc/.bash_profile

to reflect the changes.

And You can confirm through:

echo $JAVA_HOME
it should show the correct parameter defined above.

nestoru · 06-14-2012, 10:09 AM

The problem here is about an old discussion: Shell types (interactive, non interactive, login, non login). I have posted a solution in http://thinkinginsoftware.blogspot.c...me-is-not.html