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From Paritosh Ranjan <pran...@xebia.com>
Subject Re: Building Mahout
Date Thu, 13 Sep 2012 11:15:26 GMT
The current build is broken as sometimes happens with development 
https://builds.apache.org/job/Mahout-Quality/1658/console.

Till the time it gets fixed, I would suggest to skip tests and build.

On 13-09-2012 15:59, David Scarlatti wrote:
> Hi, I'm installing Mahout, following this steps (
> http://cloudblog.8kmiles.com/2012/01/31/apache-mahout-installation-on-hadoop-cluster/
> ):
>
> user1@ubuntu-server:~$ apt-get install maven2
>
>   user1@ubuntu-server:~$ cd /opt
>
>   user1@ubuntu-server:~$ svn co http://svn.apache.org/repos/asf/mahout/trunk
>
>   user1@ubuntu-server:~$ mv trunk mahout_trunk
>
>   user1@ubuntu-server:~$ ln -s mahout_trunk/ mahout
>
>   user1@ubuntu-server:~$ cd mahout
>
>   user1@ubuntu-server:~$ mvn install
>
>
> I get this result:
>
> Results :
>
> Failed tests:
> testCanopyEuclideanMRJobNoClustering(org.apache.mahout.clustering.meanshift.TestMeanShift):
> count expected:<3> but was:<4>
>
> Tests run: 676, Failures: 1, Errors: 0, Skipped: 0
>
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] There are test failures.
>
> Please refer to /opt/mahout_trunk/core/target/surefire-reports for the
> individual test results.
> [INFO]
> ------------------------------------------------------------------------
> [INFO] For more information, run Maven with the -e switch
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 51 minutes 43 seconds
> [INFO] Finished at: Thu Sep 13 12:27:34 CEST 2012
> [INFO] Final Memory: 50M/399M
> [INFO]
> ------------------------------------------------------------------------
>
>
>
>
>
> It seems it is know (same web page says: P.S.: Sometimes some tests fail
> while building mahout from source. In such cases use – user1@ubuntu-server:~$
> mvn -DskipTests install)
>
> I'd like  to understand what exactly the test run are... are they optional?
>
> An installation with -DskipTests is the same than the "clean" one?
>
> Are any documentation available explaining the installation a bit...?
>
> Thanks in advance.
>



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