No hadoop-env.sh in Hadoop 0.23 December 8th, 2011

Hey there! If you are new here, you might want to Subscribe to the RSS feed! This way you'll never miss an update!

The first thing to do after downloading and extracting Hadoop is to set JAVA_HOME in the $HADOOP_HOME/conf/hadoop-env.sh file. Almost all documentation on Hadoop site expects the above configuration but I guess that was for version 0.20. When I downloaded Hadoop 0.23 today and looked for the hadoop-env.sh file, I could not find it anywhere in the extracted archive.

After a bit of Googling I realized that things have changed in 0.23 version and now I will have to look for the file in the $HADOOP_HOME/etc/hadoop directory instead. Unfortunately I couldn’t find the file there either.

As a last resort I created a file named hadoop-env.sh in the $HADOOP_HOME/etc/hadoop directory and set my JAVA_HOME there. The one and only line in that file is given below. Fortunately after that addition, the hadoop command started working and everything went normal again.

export JAVA_HOME=/usr/lib/jvm/java-6-openjdk/

Posted in Hadoop, Server Side | Both comments and pings are currently closed.

8 Responses to “No hadoop-env.sh in Hadoop 0.23”

  1. 1. Shantanu Kumar on December 8th, 2011 at 12:49 pm

    Thanks, that’s useful info. Maybe you can cover a complete blog post on how to setup Hadoop 0.23 with HBase 0.93 (or 0.94) sometime?

  2. 2. Rajasekharan Vengalil on December 8th, 2011 at 2:45 pm

    This seems to be pretty much the standard operating procedure while working with open source software no?!

    [1] Google/Bing it
    [2] Do what the blog says
    [3] If it still doesn’t work go to step

  3. 3. Rajasekharan Vengalil on December 8th, 2011 at 2:46 pm

    :) Here’s step 3 again – this time in full:

    [3] If it still doesn’t work, go to step 1

  4. 4. Ganeshji Marwaha on December 8th, 2011 at 3:14 pm

    @Shantanu – Sure. Will do one soon…

    @Raj – Well said, except for the [Bing] part ;-)

  5. 5. Rajasekharan Vengalil on December 9th, 2011 at 5:37 am

    More choice is always good no? DuckDuckGo is another search engine that seems to be gaining notoriety…

  6. 6. Ilias Tsagklis on December 18th, 2011 at 2:07 pm

    Hi Ganeshji,

    Nice blog! Is there an email address I can contact you in private?

  7. 7. Ganeshji Marwaha on December 19th, 2011 at 7:53 am

    Sure, @Ilias Tsagklis. Email me at ganeshread [at the rate of] gmail

  8. 8. bathtub sink refinishing long island on January 9th, 2012 at 4:46 pm

    I guess you are a computer genius.I could never think of such an addition.Its really unbelievable.Great job.