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From: Keith Wiley <kwiley@keithwiley.com>
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Subject: reducer not "seeing" external jars
Date: Mon, 30 Apr 2012 13:46:44 -0700
Message-Id: <0A35369C-1E4D-4A0C-B945-8CEEDA72A31C@keithwiley.com>
To: common-user@hadoop.apache.org
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I'm trying to use -libjars to load an external jar along with the job =
jar, but the reducer still fails with a ClassNotFoundException against a =
class from the external jar (JFreeChart).  I'm not really sure how to =
approach this.  It either works or it doesn't...and so far it doesn't.

Can I make the mapper or reducer dump the class path so I can see what =
it thinks it has access to?

Aside from exploring the issue, like investigating the classpath, etc., =
why might -libjars not work as expected in the first place?

Thanks.

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

"What I primarily learned in grad school is how much I *don't* know.
Consequently, I left grad school with a higher ignorance to knowledge =
ratio than
when I entered."
                                           --  Keith Wiley
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