With this setting *org.apache.stanbol.enhancer.engines.refactor.append.graphs *set to *true*, it works. That means that the Refactor Engine results are going to be appended to the graph.
Instead I woud prefer to set this option to *false*, i.e. the Refactor Engine is going to clear the previous results, as I only need to transfer the Refactor Engine results. I believe that this "clear operation" of the existing triples is raising the issue in the context of the chains? BR David On Fri, Mar 16, 2012 at 11:33 AM, David Riccitelli <[email protected]>wrote: > Sure, > > I'm also retesting changing the setting * > org.apache.stanbol.enhancer.engines.refactor.append.graphs* from *false*to > *true*. > > Full strack-trace: > 16.03.2012 09:03:29.927 *INFO* [Thread-20] > org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJob Execution > of 'seo_refactoring' for ContentItem > urn:content-item-sha1-2273ce74a6bc49a59a1e4b1c711d6dc63a8b0cd5 completed > (chain: default, node: org.apache.clerezza.rdf.core.BNode@2e561b02, > optional false) > 16.03.2012 09:03:29.928 *ERROR* [Thread-20] > org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler > Unexpected Exception while processing ContentItem > <urn:content-item-sha1-2273ce74a6bc49a59a1e4b1c711d6dc63a8b0cd5> with > EnhancementJobManager: class > org.apache.stanbol.enhancer.jobmanager.event.impl.EventJobManagerImpl > java.util.ConcurrentModificationException > at > java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100) > at java.util.TreeMap$KeyIterator.next(TreeMap.java:1154) > at > org.apache.stanbol.commons.indexedgraph.IndexedTripleCollection$1.next(IndexedTripleCollection.java:163) > at > org.apache.stanbol.commons.indexedgraph.IndexedTripleCollection$1.next(IndexedTripleCollection.java:154) > at > org.apache.clerezza.rdf.core.impl.AbstractTripleCollection$1.next(AbstractTripleCollection.java:83) > at > org.apache.clerezza.rdf.core.impl.AbstractTripleCollection$1.next(AbstractTripleCollection.java:72) > at > org.apache.clerezza.rdf.core.access.LockingIterator.next(LockingIterator.java:57) > at > org.apache.clerezza.rdf.core.access.LockingIterator.next(LockingIterator.java:31) > at > org.apache.clerezza.rdf.core.impl.AbstractTripleCollection.removeAll(AbstractTripleCollection.java:145) > at > org.apache.clerezza.rdf.core.access.LockableMGraphWrapper.removeAll(LockableMGraphWrapper.java:198) > at > org.apache.stanbol.enhancer.engines.refactor.RefactorEnhancementEngine.computeEnhancements(RefactorEnhancementEngine.java:390) > at > org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler.processEvent(EnhancementJobHandler.java:228) > at > org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler.handleEvent(EnhancementJobHandler.java:167) > at > org.apache.felix.eventadmin.impl.tasks.HandlerTaskImpl.execute(HandlerTaskImpl.java:88) > at > org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks.execute(SyncDeliverTasks.java:221) > at > org.apache.felix.eventadmin.impl.tasks.AsyncDeliverTasks$TaskExecuter.run(AsyncDeliverTasks.java:110) > at > EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown Source) > at java.lang.Thread.run(Thread.java:662) > 16.03.2012 09:03:29.929 *INFO* [688788755@qtp-426164500-0] > org.apache.stanbol.enhancer.jobmanager.event.impl.EventJobManagerImpl > Finished EnhancementJob for ContentItem > <urn:content-item-sha1-2273ce74a6bc49a59a1e4b1c711d6dc63a8b0cd5> after > 22029ms > > > On Fri, Mar 16, 2012 at 11:29 AM, Rupert Westenthaler < > [email protected]> wrote: > >> Hi David >> >> can you please provide the whole stack trace? >> >> best >> Rupert >> On 16.03.2012, at 10:12, David Riccitelli wrote: >> >> > Dears, >> > >> > I get the following error when running the Refactor Engine, after it >> > completes its work: >> > 16.03.2012 09:03:29.927 *INFO* [Thread-20] >> > org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJob >> Execution >> > of 'seo_refactoring' for ContentItem >> > urn:content-item-sha1-2273ce74a6bc49a59a1e4b1c711d6dc63a8b0cd5 completed >> > (chain: default, node: org.apache.clerezza.rdf.core.BNode@2e561b02, >> > optional false) >> > *16.03.2012 09:03:29.928 *ERROR* [Thread-20] >> > org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler >> > Unexpected Exception while processing ContentItem >> > <urn:content-item-sha1-2273ce74a6bc49a59a1e4b1c711d6dc63a8b0cd5> with >> > EnhancementJobManager: class >> > org.apache.stanbol.enhancer.jobmanager.event.impl.EventJobManagerImpl >> > java.util.ConcurrentModificationException* >> > at >> > java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100) >> > at java.util.TreeMap$KeyIterator.next(TreeMap.java:1154) >> > at >> > >> org.apache.stanbol.commons.indexedgraph.IndexedTripleCollection$1.next(IndexedTripleCollection.java:163) >> > at >> > >> org.apache.stanbol.commons.indexedgraph.IndexedTripleCollection$1.next(IndexedTripleCollection.java:154) >> > at >> > >> org.apache.clerezza.rdf.core.impl.AbstractTripleCollection$1.next(AbstractTripleCollection.java:83) >> > *(...)* >> > >> > BR, >> > David Riccitelli >> > >> > >> ******************************************************************************** >> > InsideOut10 s.r.l. >> > P.IVA: IT-11381771002 >> > Fax: +39 0110708239 >> > --- >> > LinkedIn: http://it.linkedin.com/in/riccitelli >> > Twitter: ziodave >> > --- >> > Layar Partner Network< >> http://www.layar.com/publishing/developers/list/?page=1&country=&city=&keyword=insideout10&lpn=1 >> > >> > >> ******************************************************************************** >> >> > > > -- > David Riccitelli > > > ******************************************************************************** > InsideOut10 s.r.l. > P.IVA: IT-11381771002 > Fax: +39 0110708239 > --- > LinkedIn: http://it.linkedin.com/in/riccitelli > Twitter: ziodave > --- > Layar Partner > Network<http://www.layar.com/publishing/developers/list/?page=1&country=&city=&keyword=insideout10&lpn=1> > > ******************************************************************************** > > -- David Riccitelli ******************************************************************************** InsideOut10 s.r.l. P.IVA: IT-11381771002 Fax: +39 0110708239 --- LinkedIn: http://it.linkedin.com/in/riccitelli Twitter: ziodave --- Layar Partner Network<http://www.layar.com/publishing/developers/list/?page=1&country=&city=&keyword=insideout10&lpn=1> ********************************************************************************
