I think by default some of the Lubm queries return nothing if you don't have inference enabled. Caleb might remember exactly which ones.
Sent from my iPhone > On Mar 25, 2016, at 8:59 PM, Lotts, David <[email protected]> wrote: > > A few suggestions: > 1. Clone from the latest development branch, not the Master. What you have, > commit e6be84 , is from early December. > https://github.com/apache/incubator-rya/tree/develop > > 2. Look at the Virtual machine set-up matching versions and the special Rya > pre-built for the VM. > https://github.com/apache/incubator-rya/tree/develop/extras/vagrantExample/src/main/vagrant > > 3. Try your data and queries with the VM and see if it gives the same > behavior. The link above has complete setup instructions with a Vagrant > script. > > Sorry I don't have a specific answer for this odd behavior. Hopefully > someone else will have some more insight! > david lotts. > > > -----Original Message----- > From: Adina Crainiceanu [mailto:[email protected]] > Sent: Friday, March 25, 2016 5:40 PM > To: Damien Graux <[email protected]>; [email protected] > Cc: Roshan Punnoose <[email protected]>; David Rapp <[email protected]>; > [email protected]; Louis Jachiet <[email protected]>; Pierre Geneves > <[email protected]>; Nabil Layaïda <[email protected]> > Subject: Re: [RYA] Troubles with running RYA on LUBM (empty answers) > > Hi Damien, > > Thanks for the interest in Rya and for trying to include it in your study. > I'm not sure why you have the problems. I cc-ed the Rya developers list (Rya > is now an Apache incubator project) and hopefully someone has an idea. > > Rya team - did anyone run into this kind of problems? Any suggestions? > > Thank you, > Adina > > > > >> On Fri, Mar 25, 2016 at 9:55 AM, Damien Graux <[email protected]> wrote: >> >> Hi, >> >> I am PhD student at Inria (France) and I am working with my team on >> SPARQL query evaluators. More specifically, we are benchmarking a >> bunch of them and we are trying to include RYA (see below for versions and >> system used). >> >> Currently, we are trying the run LUBM benchmark (as in " Rya: A >> Scalable RDF Triple Store for the Clouds" 2012) but we have problems. >> We pinpointed it to at least one specific problem, on some queries >> (e.g. Q14) RYA always answer a list of empty elements ("[] [] [] …") >> whatever the dataset used (we tried LUBM1, LUBM1k and LUBM10k). It >> seams that RYA gives the correct number of answers but they are not supposed >> to be empty. >> >> We tried our best to solve this mystery but without success so we come >> to your help so we can include RYA in upcoming our paper. Do you have >> an idea where this might come from or can you redirect us towards >> someone in charge of maintaining RYA? >> >> >> We installed RYA 0.0.1 version : >> commit e6be84a407e05c66cb4b4b6ef225d7e07dd10fcf >> Author: Aaron Mihalik <[email protected]> <[email protected]> >> Date: Fri Dec 4 20:25:51 2015 -0500 >> >> Rya is running on Cloudera 5.5.0 with Apache Accumulo 1.6. Everything >> runs on a cluster with the default configuration over 10 nodes (1 of >> primary & secondary named nodes) and each VM has 16 GB of ram, 4 TB of >> disk and 4 CPU (more than enough for what is needed). >> We did not activate the batch planner and followed the github >> installation guide. >> >> Thank you in advance for any help you can provide, >> >> Warm Regards, >> -- >> Damien Graux > > > > -- > Dr. Adina Crainiceanu > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.usna.edu_Users_cs_adina_&d=BQIFaQ&c=Nwf-pp4xtYRe0sCRVM8_LWH54joYF7EKmrYIdfxIq10&r=ruy1rriFBFoeOJvvQWwN1h8AcdSNT3EVLrdVl7pr-iA&m=2DTepSIs9nqHEIiOgjlSmkEpvbMNZ3UKQtoUx8xo0DY&s=jFpcJ7ob-FlHaiBYKk1n5mdcrntukAbvRvbRH7wkPoM&e= >
