You mean you're supposed to do step 4 *before* step 8?!? ;p I did run mvn install, and thought I got a bunch of warnings like the following:
[WARNING] Entry: > mahout-0.2-SNAPSHOT/usr/local/melk/mahout/core/src/main/java/org/apache/mahout/cf/taste/impl/common/ > longer than 100 characters. > after a couple hours it said it completed successfully: [INFO] > ------------------------------------------------------------------------ > [INFO] Reactor Summary: > [INFO] > ------------------------------------------------------------------------ > [INFO] Mahout core ........................................... SUCCESS > [8:46.665s] > [INFO] Mahout Taste Webapp ................................... SUCCESS > [55.496s] > [INFO] Mahout examples ....................................... SUCCESS > [55.317s] > [INFO] Apache Lucene Mahout .................................. SUCCESS > [2:02:03.392s] > [INFO] > ------------------------------------------------------------------------ > [INFO] > ------------------------------------------------------------------------ > [INFO] BUILD SUCCESSFUL > [INFO] > ------------------------------------------------------------------------ > [INFO] Total time: 132 minutes 41 seconds > [INFO] Finished at: Wed Apr 01 00:59:27 EDT 2009 > [INFO] Final Memory: 61M/80M > [INFO] > ------------------------------------------------------------------------ > So I proceeded through steps 5, 6, and 7, and then step 8's "mvn package" command failed with the output I linked to. Just for the heck of it I tried "mvn install" again (from the top-level directory) and after getting a bunch of the "longer-than-100-characters" warnings again, this time after 7 minutes it failed with: [ERROR] BUILD ERROR > [INFO] > ------------------------------------------------------------------------ > [INFO] Failed to create assembly: Error creating assembly archive project: A > tar file cannot include itself. > I posted the full transcript of my console session at http://melkjug.org/_static/grouplens-install-log.txt. Seems like something funky's going on with tar, but I'm not sure what. On Wed, Apr 1, 2009 at 12:11 PM, Grant Ingersoll <[email protected]>wrote: > Do a "mvn install" from the top level directory first: > http://lucene.apache.org/mahout/taste.html#demo > > HTH, > Grant > > > On Apr 1, 2009, at 11:35 AM, Joshua Bronson wrote: > > Thanks all for the good info. Taste definitely sounds like a promising >> direction for us to go in for our recommendation service. >> I'm working through the installation of the GroupLens demo, but the mvn >> package step is failing with the output at >> http://paste.pocoo.org/show/110618/. Haven't looked into this yet, just >> thought I'd post to the list first with my progress. If anyone else uses >> IRC, I've created (and am currently the only one in) the #mahout channel >> on >> freenode. Hope to see some of you in there! >> >> Josh >> >> On Wed, Apr 1, 2009 at 5:48 AM, Sean Owen <[email protected]> wrote: >> >> Couple clarifications - >>> >>> The CF components are oriented to on-line, real-time use, though of >>> course >>> one can trivially build a batch job out of that. That is what I did with >>> the >>> EC2 image that cranks out recommendations for all users. >>> >>> The CF component is also already parallelized as much as is practical. >>> There >>> are already Hadoop jobs for parallel, batch operation. >>> >>> Finally if you have some external notion of item similarity, like text >>> similarity between articles, you can and should include this info by >>> creating an ItemSimilarity with this knowledge. In that case you want to >>> use >>> an item-based recommender, since it is only in such a case that >>> item-based >>> recommenders have a distinct advantage. >>> >>> On Apr 1, 2009 10:32 AM, "Otis Gospodnetic" <[email protected]> >>> wrote: >>> >>> >>> it's the former. Taste is still not parallelized, but other parts of >>> Mahout >>> are, and they make use of Hadoop. >>> >>> > -------------------------- > Grant Ingersoll > http://www.lucidimagination.com/ > > Search the Lucene ecosystem (Lucene/Solr/Nutch/Mahout/Tika/Droids) using > Solr/Lucene: > http://www.lucidimagination.com/search > >
