Re: Problems building Marmotta

[Michael Della Bitta]

Hi all,

For what it’s worth, I’m a new engineer at the DPLA looking at some performance 
problems we’re having with our Marmotta-based system, and I’m looking to do 
custom builds as well.

I’m having trouble building from HEAD as well. Having test failures in the EH 
Cache, Infinispan and Reasoner modules, both in Linux and OS X.

Also, it appears that the builds in Apache’s Jenkins and Travis are failing for 
other reasons:

https://builds.apache.org/job/Marmotta/966/console 

https://travis-ci.org/apache/marmotta 

Is there a recommended environment to do builds in aside from Java/Maven in 
terms of OS/versions?

Thanks,

Michael

> On Sep 22, 2016, at 10:40 AM, Osma Suominen  wrote:
> 
> Hi!
> 
> 22.09.2016, 17:15, Sergio Fernández wrote:
>> Try to fetch the current HEAD of develop, we've fixed some minor issues
>> there.
> 
> Thanks for the quick fixes!
> 
> However, now the build fails at the "KiWi Triplestore: Reasoner" stage, with 
> this test failure:
> 
> Results :
> 
> Failed tests:
>  JustificationResolutionTest.testResolveBaseTriplesSingle:163 expected:<1> 
> but was:<2>
> 
> Tests run: 55, Failures: 1, Errors: 0, Skipped: 27
> 
> 
> I was able to complete the build using -DskipTests=true.
> 
>> BTW, you do not need to depend at the source level, but you can easily
>> build your custom Marmotta launcher depending at the Maven level. This
>> is an example we built for a
>> tutorial: https://github.com/wikier/apache-marmotta-tutorial-iswc2014
>> 
> 
> Thanks, but at the moment, I'm mostly interested in deploying an unaltered 
> Marmotta WAR on a Tomcat application server and then developing any custom 
> parts by hooking into the LDP and SPARQL APIs of Marmotta. But this might 
> change along the way.
> 
> -Osma
> 
> -- 
> Osma Suominen
> D.Sc. (Tech), Information Systems Specialist
> National Library of Finland
> P.O. Box 26 (Kaikukatu 4)
> 00014 HELSINGIN YLIOPISTO
> Tel. +358 50 3199529
> osma.suomi...@helsinki.fi
> http://www.nationallibrary.fi

Re: Problems building Marmotta

[Osma Suominen]

Hi!

22.09.2016, 17:15, Sergio Fernández wrote:

Try to fetch the current HEAD of develop, we've fixed some minor issues
there.


Thanks for the quick fixes!

However, now the build fails at the "KiWi Triplestore: Reasoner" stage, 
with this test failure:


Results :

Failed tests:
  JustificationResolutionTest.testResolveBaseTriplesSingle:163 
expected:<1> but was:<2>


Tests run: 55, Failures: 1, Errors: 0, Skipped: 27


I was able to complete the build using -DskipTests=true.


BTW, you do not need to depend at the source level, but you can easily
build your custom Marmotta launcher depending at the Maven level. This
is an example we built for a
tutorial: https://github.com/wikier/apache-marmotta-tutorial-iswc2014



Thanks, but at the moment, I'm mostly interested in deploying an 
unaltered Marmotta WAR on a Tomcat application server and then 
developing any custom parts by hooking into the LDP and SPARQL APIs of 
Marmotta. But this might change along the way.


-Osma

--
Osma Suominen
D.Sc. (Tech), Information Systems Specialist
National Library of Finland
P.O. Box 26 (Kaikukatu 4)
00014 HELSINGIN YLIOPISTO
Tel. +358 50 3199529
osma.suomi...@helsinki.fi
http://www.nationallibrary.fi

Re: Problems building Marmotta

[Sergio Fernández]

Hi,

On Thu, Sep 22, 2016 at 9:58 AM, Osma Suominen 
wrote:
>
> I'm evaluating Apache Marmotta for use as an LDP store for storing and
> publishing bibliographic Linked Data at the National Library of Finland.
> Our usage scenario is somewhat similar to that of DPLA. We would like to
> store at least a million - possibly several million - small (50-100
> triples) RDF documents, representing bibliographic metadata derived from
> MARC records, in a triple store. Marmotta seems attractive because it seems
> relatively simple (cf. Virtuoso which tries to do way too many things in
> the same package!), supports LDP and SPARQL 1.1, and uses a solid database
> (PostgreSQL) underneath.
>

Good to hear that :-)


> I've done some initial tests using Marmotta 3.3.0 but I wanted to try also
> the most recent development version since a 3.4.0 release seems to be
> imminent. However, I have some problems building the development version.
>
> Building the LDP module results in a test failure. Here is the output:
>

Try to fetch the current HEAD of develop, we've fixed some minor issues
there.

BTW, you do not need to depend at the source level, but you can easily
build your custom Marmotta launcher depending at the Maven level. This is
an example we built for a tutorial: https://github.com/
wikier/apache-marmotta-tutorial-iswc2014

Cheers,

-- 
Sergio Fernández
Partner Technology Manager
Redlink GmbH
m: +43 6602747925
e: sergio.fernan...@redlink.co
w: http://redlink.co