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From Claudio Martella <>
Subject Re: Specifying multiple jars for giraph job
Date Tue, 13 Aug 2013 18:58:14 GMT
-libjars is exactly what you need.

make sure you set HADOOP_CLASSPATH accordingly too.


export HADOOP_CLASSPATH="giraph.jar:your.jar"
hadoop jar giraph.jar org.apache.giraph.GiraphRunner [ -D option ]*
-libjars your.jar your.package.ComputationClass [ GiraphRunner option e.g.
-vip -vif etc. ]*

On Tue, Aug 13, 2013 at 8:47 PM, Kyle Orlando <>wrote:

> Hi,
> If you have code that you'd like to use that's in a separate jar file,
> what's the best way to include it when running a giraph job? I've
> never been able to get the -libjars command to work properly for
> hadoop, nor do I really know what it's exact purpose is, but thus far
> I've just been combining all of the giraph jars + my jars into one
> mega jar file, so my command looks like "hadoop jar combined.jar
> org.apache.giraph.GiraphRunner ..."   It's been working fine, but
> there has to be a better way to do this!
> Thanks,
> --
> Kyle Orlando
> Computer Engineering Major
> University of Maryland

   Claudio Martella

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