Hi, Thanks for the instructions...but can you tell me what you mean by "simply initialize it?"
What steps are required to initialize it? Thanks for your prompt reply - I'd like to fix this asap. Is there any way to rebuild pso and pos as well? Thanks again, Yours Simon -------------------------------------------------------------------------- Confidentiality Notice: This message is private and may contain confidential and proprietary information. If you have received this message in error, please notify us and remove it from your system and note that you must not copy, distribute or take any action in reliance on it. Any unauthorized use or disclosure of the contents of this message is not permitted and may be unlawful. -----Original Message----- From: damyan [mailto:dam...@sirma.bg] Sent: Wednesday, September 26, 2012 4:46 AM To: Blasetti, Luciano (CIOK) Cc: Rakov, Simon; owlim-discussion@ontotext.com; rve...@yarcdata.com Subject: Re: [Owlim-discussion] ERROR IN PREDICATE STATISTICS Hi Luciano, Simon rebuilding context indices requires first to delete them from the storage folder (when repository is down) and then simply initialize it. For the context indices, the files are: pcso, pcso.index, pcos and pcos.index For the predicate list index, the files are: predLists and predLists.index For the predicate statistics (files: predicates and predicates.index), these can be rebuild with the aid of an additional tool that is included within the distribution jar, class name is: com.ontotext.trree.BuildPredicates e.g. something like that should do it having preparing the right classpath: >java -cp <owlim-lib>/*.jar com.ontotext.trree.BuildPredicates <repository's storage folder> HTH, Damyan Ognyanov Ontotext AD On 9/26/2012 8:55 AM, Blasetti, Luciano (CIOK) wrote: > ...Very good question. How to rebuild indexes without reimport the whole > repository? > ________________________________________ > From: owlim-discussion-boun...@ontotext.com > [owlim-discussion-boun...@ontotext.com] On Behalf Of Rakov, Simon > [simon.ra...@astrazeneca.com] > Sent: Tuesday, September 25, 2012 5:59 PM > To: damyan > Cc: owlim-discussion@ontotext.com; rve...@yarcdata.com > Subject: Re: [Owlim-discussion] ERROR IN PREDICATE STATISTICS > > Hi, > > I do have context indices enabled. Sizes: > > Pcos hits: 53663768 > Pcso hits: 20127229 > Pos hits: 482282752 > Pso hits: 32098277 > PL hits: 50179 > > It looks like pos is much larger than pcos or pso. PL (Predicate Lists) is > tiny. > > How do I rebuild the indexes? Please send me a list of steps. > > Thanks > Simon > > > -------------------------------------------------------------------------- > Confidentiality Notice: This message is private and may contain confidential > and proprietary information. If you have received this message in error, > please notify us and remove it from your system and note that you must not > copy, distribute or take any action in reliance on it. Any unauthorized use > or disclosure of the contents of this message is not permitted and may be > unlawful. > > -----Original Message----- > From: damyan [mailto:dam...@sirma.bg] > Sent: Tuesday, September 25, 2012 11:10 AM > To: Rakov, Simon > Cc: Barry Bishop; rve...@yarcdata.com; Pavel Mička; > owlim-discussion@ontotext.com > Subject: Re: [Owlim-discussion] ERROR IN PREDICATE STATISTICS > > Hi Simon, > > this is a message received when we detected a mismatch during estimation > of the query complexity for a particular statement pattern. And more > specifically when the collection size per that statement pattern is > calculated to be 0 but we found at least one statement satisfying the > pattern. > As a possible cause - there could be several but most likely one of the > indices is in inconsistent state (or have partial data). > > Could you check if you are using context indices and the size of > these(pcso for instance) is close by (at same order) as for pso/pos ... > > It could be easily caused when repository is initialized with context > indices enabled - then initialized without them but some data is added > and then these are again re-enabled. In such scenario, the third time > you initialize the repository it will find and use the old context > indices but they will not have the data from the previous updates, when > they were switched off since these were not maintained when switched off. > > one way to recover is to rebuild them. > > HTH > Damyan Ognyanov > Ontotext AD. > > On 9/25/2012 5:26 PM, Rakov, Simon wrote: >> Hi, >> >> I am seeing a lot of these in catalina.out: >> >> ERROR IN PREDICATE STATISTICS: 3546128 15939569 0, size = [D@4426e447 >> ERROR IN PREDICATE STATISTICS: 3546176 15939569 0, size = [D@55551445 >> ERROR IN PREDICATE STATISTICS: 3546307 15939569 0, size = [D@44a5e9c7 >> ERROR IN PREDICATE STATISTICS: 3546399 15939569 0, size = [D@68972b06 >> ERROR IN PREDICATE STATISTICS: 3546463 15939569 0, size = [D@1c89cc8f >> ERROR IN PREDICATE STATISTICS: 3546546 15939569 0, size = [D@1ad4ceec >> ERROR IN PREDICATE STATISTICS: 3546561 15939569 0, size = [D@95cf5b7 >> ERROR IN PREDICATE STATISTICS: 3546592 15939569 0, size = [D@3607c62e >> ERROR IN PREDICATE STATISTICS: 3546607 15939569 0, size = [D@386411b8 >> ERROR IN PREDICATE STATISTICS: 3546663 15939569 0, size = [D@31c763f4 >> ERROR IN PREDICATE STATISTICS: 3546677 15939569 0, size = [D@197341b4 >> ERROR IN PREDICATE STATISTICS: 3546773 15939569 0, size = [D@5dde9d79 >> ERROR IN PREDICATE STATISTICS: 3546947 15939569 0, size = [D@4234a314 >> >> What do these mean? More importantly, how do I fix them? >> >> I'm running OWLIM 5.2.5512-20120921122819, JRE_HOME jdk1.6.0_32, Tomcat >> 6.0.35, CentOS with kernel Linux 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:14 >> EDT 2010 x86_64 x86_64 x86_64 GNU/Linux. >> >> Thanks for your help >> Simon Rakov >> >> >> -------------------------------------------------------------------------- >> Confidentiality Notice: This message is private and may contain confidential >> and proprietary information. If you have received this message in error, >> please notify us and remove it from your system and note that you must not >> copy, distribute or take any action in reliance on it. Any unauthorized use >> or disclosure of the contents of this message is not permitted and may be >> unlawful. >> >> -----Original Message----- >> From: owlim-discussion-boun...@ontotext.com >> [mailto:owlim-discussion-boun...@ontotext.com] On Behalf Of Barry Bishop >> Sent: Monday, September 24, 2012 6:23 PM >> To: rve...@yarcdata.com; Pavel Mička >> Cc: owlim-discussion@ontotext.com >> Subject: Re: [Owlim-discussion] OWLIM ignores binding >> >> Hi Pavel, Rob, >> >> So it seems this is correct behaviour after all. >> >> Perhaps I was too quick to assume something was wrong. I think for >> anyone used to SQL then it just seems wrong, but is in fact correct. >> >> Thanks for spotting this, Rob. >> >> And thanks for raising awareness, Pavel. >> >> All the best, >> barry >> >> On 24/09/12 18:34, Rob Vesse wrote: >>> I believe this is in fact the correct behavior and in line with the >>> specification, see >>> http://answers.semanticweb.com/questions/17410/semantics-of-sparql-aggregat >>> es for a recent discussion on this with an explanation from Andy Seaborne >>> of the working group as to why this is correct behavior >>> >>> The specific example there was a query with MAX but the same argument >>> applies here (in fact his argument does include treatment of COUNT) >>> >>> Rob >>> >>> >>> >>> On 9/24/12 1:46 AM, "Barry Bishop" <barry.bis...@ontotext.com> wrote: >>> >>>> Hi Pavel, >>>> >>>> Yes, the issue does seem to be in Sesame. I have raised this issue: >>>> >>>> http://www.openrdf.org/issues/browse/SES-1108 >>>> >>>> I expect it will be taken care of fairly soon. >>>> >>>> Thanks for letting us know. >>>> >>>> barry >>>> >>>> Barry Bishop >>>> OWLIM Product Manager >>>> Ontotext AD >>>> Tel: +43 650 2000 237 >>>> email: barry.bis...@ontotext.com >>>> skype: bazbishop >>>> www.ontotext.com >>>> >>>> On 24/09/12 10:17, Pavel Mička wrote: >>>>> Hi, >>>>> >>>>> I have found the issue, which is probably in sesame. When I execute >>>>> the query, but the knowledge base does not contain any axiom, it >>>>> returns only the value from the aggregation (0) as a result. Which is >>>>> quite unexpected, as it (in my humble opinion) should return no result >>>>> (empty result set). When the query is executed and data are present, >>>>> than it works as expected. >>>>> >>>>> Pavel >>>>> >>>>> >>>>> Dne 24.9.2012 8:22, Barry Bishop napsal(a): >>>>>> Hello Pavel, >>>>>> >>>>>> Can you provide some more details, please? >>>>>> >>>>>> Do you mean that you see the expected variable names when calling >>>>>> TupleQueryResult.getBindingNames(), but that calls to >>>>>> TupleQueryResult.next().getBindingNames() do not have the expected >>>>>> variable names? Is this true for every BindingSet? >>>>>> >>>>>> Best >>>>>> barry >>>>>> >>>>>> Barry Bishop >>>>>> OWLIM Product Manager >>>>>> Ontotext AD >>>>>> Tel: +43 650 2000 237 >>>>>> email: barry.bis...@ontotext.com >>>>>> skype: bazbishop >>>>>> www.ontotext.com >>>>>> >>>>>> On 12/09/12 10:47, Pavel Mička wrote: >>>>>>> Hi, >>>>>>> >>>>>>> I am using OWLIM-Lite edition (5.2.5331, Sesame 2.6.8) and I am >>>>>>> querying the system using the following SPARQL query: >>>>>>> >>>>>>> PREFIX owl: <http://www.w3.org/2002/07/owl#> >>>>>>> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> >>>>>>> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> >>>>>>> PREFIX odra: >>>>>>> <http://kbss.felk.cvut.cz/ontologies/2012/OdraOntology.owl/> >>>>>>> >>>>>>> SELECT ?type (COUNT(DISTINCT ?instance) AS ?count) WHERE { >>>>>>> ?instance odra:hasType ?type . >>>>>>> } >>>>>>> GROUP BY ?type >>>>>>> >>>>>>> In BindingSet I expect 2 bindings (type, count), however the result >>>>>>> contains only count. But the TupleQueryResult contains (correctly) >>>>>>> both of them. >>>>>>> >>>>>>> Am I missing something or is this a bug? >>>>>>> >>>>>>> Thanks >>>>>>> >>>>>>> Pavel Mička >>>>>>> _______________________________________________ >>>>>>> Owlim-discussion mailing list >>>>>>> Owlim-discussion@ontotext.com >>>>>>> http://ontomail.semdata.org/cgi-bin/mailman/listinfo/owlim-discussion >>>> _______________________________________________ >>>> Owlim-discussion mailing list >>>> Owlim-discussion@ontotext.com >>>> http://ontomail.semdata.org/cgi-bin/mailman/listinfo/owlim-discussion >> _______________________________________________ >> Owlim-discussion mailing list >> Owlim-discussion@ontotext.com >> http://ontomail.semdata.org/cgi-bin/mailman/listinfo/owlim-discussion >> _______________________________________________ >> Owlim-discussion mailing list >> Owlim-discussion@ontotext.com >> http://ontomail.semdata.org/cgi-bin/mailman/listinfo/owlim-discussion > _______________________________________________ > Owlim-discussion mailing list > Owlim-discussion@ontotext.com > http://ontomail.semdata.org/cgi-bin/mailman/listinfo/owlim-discussion > _______________________________________________ Owlim-discussion mailing list Owlim-discussion@ontotext.com http://ontomail.semdata.org/cgi-bin/mailman/listinfo/owlim-discussion
