According to your suggestion, I try following command, but still fail:
--------------------------------------------------------------------
root@ubuntu32:/usr/lib/hadoop# export
JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386/jre
root@ubuntu32:/usr/lib/hadoop# sudo -u hdfs hadoop namenode -format
Error: JAVA_HOME is not set.
root@ubuntu32:/usr/lib/hadoop# ls $JAVA_HOME -al
total 20
drwxr-xr-x 5 root root 4096 Jul 3 20:43 .
drwxr-xr-x 5 root root 4096 Jul 3 20:43 ..
lrwxrwxrwx 1 root root 50 May 2 20:14 ASSEMBLY_EXCEPTION ->
../../java-7-openjdk-common/jre/ASSEMBLY_EXCEPTION
drwxr-xr-x 2 root root 4096 Jul 3 20:43 bin
drwxr-xr-x 8 root root 4096 Jul 3 20:43 lib
drwxr-xr-x 4 root root 4096 Jul 3 20:43 man
lrwxrwxrwx 1 root root 50 May 2 20:14 THIRD_PARTY_README ->
../../java-7-openjdk-common/jre/THIRD_PARTY_README
root@ubuntu32:/usr/lib/hadoop#
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On 07/05/2012 11:53 AM, Simon wrote:
I think you should set JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386/jre
JAVA_HOME is the base location of java, where it can find the java
executable $JAVA_HOME/bin/java
Regards,
Simon
On Thu, Jul 5, 2012 at 12:42 PM, Ying Huang <huangyi...@gmail.com
<mailto:huangyi...@gmail.com>> wrote:
Hello,
I am installing hadoop according to this page:
https://cwiki.apache.org/BIGTOP/how-to-install-hadoop-distribution-from-bigtop.html
I think I have successfully installed hadoop on my Ubuntu
12.04 x64.
Then I go to step Running Hadoop, bellowing is my operation
step, why it prompts that my JAVA_HOME is not set?
------------------------------------------------------------------------------------------
root@ubuntu32:/usr/lib/hadoop# export
JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386/jre/bin/java
root@ubuntu32:/usr/lib/hadoop# sudo -u hdfs hadoop namenode -format
Error: JAVA_HOME is not set.
root@ubuntu32:/usr/lib/hadoop# ls $JAVA_HOME -al
-rwxr-xr-x 1 root root 5588 May 2 20:14
/usr/lib/jvm/java-7-openjdk-i386/jre/bin/java
root@ubuntu32:/usr/lib/hadoop#
------------------------------------------------------------------------------------------
--
Best Regards
Ying Huang
--
Best Regards
Ying Huang
