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From "Barr, Jeffrey" <jb...@amazon.com>
Subject RE: .deflate trouble
Date Fri, 15 Feb 2013 17:24:19 GMT
Hi Marcos and Keith,

Thanks for bringing this to our attention. Saurabh is currently OOF, so I’ll pass this along
to the EMR team.


From: Marcos Ortiz Valmaseda [mailto:mlortiz@uci.cu]
Sent: Thursday, February 14, 2013 7:10 PM
To: user@hadoop.apache.org
Cc: Saurabh Baji; Barr, Jeffrey
Subject: Re: .deflate trouble

Regards, Keith. For EMR issues and stuff, you can contact directly to Jeff Barr(Chief Evangelist
for AWS) or to Saurabh Baji (Product Manager for AWS EMR).
Best wishes.
De: "Keith Wiley" <kwiley@keithwiley.com>
Para: user@hadoop.apache.org
Enviados: Jueves, 14 de Febrero 2013 15:46:05
Asunto: Re: .deflate trouble

Good call.  We can't use the conventional web-based JT due to corporate access issues, but
I looked at the job_XXX.xml file directly, and sure enough, it set mapred.output.compress
to true.  Now I just need to remember how that occurs.  I simply ran the wordcount example
straight off the command line, I didn't specify any overridden conf settings for the job.

Ultimately, the solution (or part of it) is to get away from .19 to a more up-to-date version
of Hadoop.  I would prefer 2.0 over 1.0 in fact, but due to a remarkable lack of concise EC2/Hadoop
documentation (and the fact that what docs I did find were very old and therefore conformed
to .19 style Hadoop), I have fallen back on old versions of Hadoop for my initial tests. 
In the long run, I will need to get a more modern version of Hadoop to successfully deploy
on EC2.


On Feb 14, 2013, at 15:02 , Harsh J wrote:

> Did the job.xml of the job that produced this output also carry
> mapred.output.compress=false in it? The file should be viewable on the
> JT UI page for the job. Unless explicitly turned out, even 0.19
> wouldn't have enabled compression on its own.

Keith Wiley     kwiley@keithwiley.com     keithwiley.com    music.keithwiley.com

"The easy confidence with which I know another man's religion is folly teaches
me to suspect that my own is also."
                                           --  Mark Twain

Marcos Ortiz Valmaseda,
Product Manager && Data Scientist at UCI<http://www.uci.cu>
Blog: http://marcosluis2186.posterous.com
LinkedIn: http://www.linkedin.com/in/marcosluis2186
Twitter: @marcosluis2186<http://twitter.com/marcosluis2186>
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