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From Roman Shaposhnik <>
Subject Re: ClassNotFoundException GiraphYarn Task with Giraph 1.1.0 for Hadoop 2.5.1
Date Sun, 14 Dec 2014 23:41:20 GMT
Fixing YARN backend would be nice, but in the meantime, what
prevents you from using a MR backend? That is known to work.


On Sun, Dec 14, 2014 at 2:41 PM, Philipp Nolte <> wrote:
> Hello everyone,
> I have been developing a Giraph application and now wanted to try it on my four-machine
cluster running Hadoop 2.5.1.
> My Giraph application is packaged with Giraph 1.1.0-RC1 and all its dependencies.
> I’ve built Giraph and installed it into my local repository using the hadoop_2 profile
running and built my application as a jar with all dependencies (with giraph-core 1.1.0-RC1).
> My application runs nicely with GiraphRunner and one worker on my local machine and on
the cluster’s master. But as I have a small Hadooop 2.5.1 cluster, I need to use GiraphYarnTask
to utilize all its workers.
> Running my application results in a ClassNotFoundException for GiraphYarnTask.
> Any idea?
> Philipp

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