SemWeb2NL
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Published
20 hours ago •
SmartDataAnalytics
SmartDataAnalytics
After some time alive AVATAR stop returning summaries
At some point AVATAR stops giving out summaries at all and starts throwing the following errors:
cls<http://dbpedia.org/ontology/SoccerPlayer>
Cluster = [[http://dbpedia.org/ontology/Person/height, http://dbpedia.org/ontology/height], [http://dbpedia.org/ontology/birthPlace], [http://dbpedia.org/ontology/birthYear, http://dbpedia.org/ontology/birthDate], [http://dbpedia.org/ontology/careerStation
, http://dbpedia.org/ontology/position], [http://www.w3.org/ns/prov#wasDerivedFrom, http://dbpedia.org/ontology/team]]
TP:http://dbpedia.org/resource/Neymar @http://dbpedia.org/ontology/birthPlace http://dbpedia.org/resource/São_Paulo -> Neymar's birth place is São Paulo
TP:http://dbpedia.org/resource/Neymar @http://dbpedia.org/ontology/birthPlace http://dbpedia.org/resource/Mogi_das_Cruzes -> Neymar's birth place is Mogi das Cruzes
TP:http://dbpedia.org/resource/Neymar @http://dbpedia.org/ontology/position http://dbpedia.org/resource/Forward_(association_football) -> Neymar's position is Forward (association football)
java.lang.NullPointerException
at org.apache.commons.collections15.map.LRUMap.reuseMapping(LRUMap.java:279)
at org.apache.commons.collections15.map.LRUMap.addMapping(LRUMap.java:250)
at org.apache.commons.collections15.map.AbstractHashedMap.put(AbstractHashedMap.java:296)
at org.aksw.triple2nl.converter.DefaultIRIConverter.convert(DefaultIRIConverter.java:195)
at org.aksw.triple2nl.converter.DefaultIRIConverter.convert(DefaultIRIConverter.java:131)
at org.aksw.triple2nl.TripleConverter.processResourceNode(TripleConverter.java:608)
at org.aksw.triple2nl.TripleConverter.processObject(TripleConverter.java:656)
at org.aksw.triple2nl.TripleConverter.convertToPhrase(TripleConverter.java:352)
at org.aksw.sparql2nl.naturallanguagegeneration.SimpleNLGwithPostprocessing.getNLForTriple(SimpleNLGwithPostprocessing.java:958)
at Verbalizer.generateSimplePhraseFromTriple(Verbalizer.java:482)
at Verbalizer.getPhraseSpecsFromTriples(Verbalizer.java:423)
at Verbalizer.generateSentencesFromClusters(Verbalizer.java:304)
at Verbalizer.verbalize(Verbalizer.java:508)
at Verbalizer.verbalize(Verbalizer.java:487)
at Verbalizer.getSummary(Verbalizer.java:559)
at Verbalizer.summarize(Verbalizer.java:549)
at Verbalizer.summarize(Verbalizer.java:540)
at AppKt$main$1.handle(App.kt:21)
at AppKt$main$1.handle(App.kt)
at spark.RouteImpl$1.handle(RouteImpl.java:58)
at spark.webserver.MatcherFilter.doFilter(MatcherFilter.java:162)
at spark.webserver.JettyHandler.doHandle(JettyHandler.java:61)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
at org.eclipse.jetty.server.Server.handle(Server.java:517)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:302)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:245)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:748)
cls<http://dbpedia.org/ontology/City>
cls<http://dbpedia.org/ontology/City>
Cluster = [[http://dbpedia.org/ontology/areaTotal, http://dbpedia.org/ontology/areaWater, http://dbpedia.org/ontology/areaLand, http://dbpedia.org/ontology/PopulatedPlace/areaTotal, http://dbpedia.org/ontology/areaCode, http://dbpedia.org/ontology/postalCo
de], [http://dbpedia.org/ontology/populationDensity, http://dbpedia.org/ontology/country, http://dbpedia.org/ontology/populationTotal, http://dbpedia.org/ontology/PopulatedPlace/populationDensity, http://www.w3.org/ns/prov#wasDerivedFrom, http://dbpedia.or
g/ontology/elevation], [http://dbpedia.org/ontology/timeZone, http://dbpedia.org/ontology/type], [http://dbpedia.org/ontology/utcOffset], [http://dbpedia.org/ontology/isPartOf]]
Cluster = [[http://dbpedia.org/ontology/areaTotal, http://dbpedia.org/ontology/areaWater, http://dbpedia.org/ontology/areaLand, http://dbpedia.org/ontology/PopulatedPlace/areaTotal, http://dbpedia.org/ontology/areaCode, http://dbpedia.org/ontology/postalCo
de], [http://dbpedia.org/ontology/populationDensity, http://dbpedia.org/ontology/country, http://dbpedia.org/ontology/populationTotal, http://dbpedia.org/ontology/PopulatedPlace/populationDensity, http://www.w3.org/ns/prov#wasDerivedFrom, http://dbpedia.or
g/ontology/elevation], [http://dbpedia.org/ontology/timeZone, http://dbpedia.org/ontology/type], [http://dbpedia.org/ontology/utcOffset], [http://dbpedia.org/ontology/isPartOf]]
TP:http://dbpedia.org/resource/Berlin @http://dbpedia.org/ontology/country http://dbpedia.org/resource/Germany -> Berlin's country is Germany
TP:http://dbpedia.org/resource/Berlin @http://dbpedia.org/ontology/country http://dbpedia.org/resource/Germany -> Berlin's country is Germany
TP:http://dbpedia.org/resource/Berlin @rdf:type http://dbpedia.org/ontology/City -> Berlin is a city
TP:http://dbpedia.org/resource/Berlin @rdf:type http://dbpedia.org/ontology/City -> Berlin is a city
// In a different place
java.util.NoSuchElementException
at java.util.TreeMap.key(TreeMap.java:1327)
at java.util.TreeMap.firstKey(TreeMap.java:290)
at java.util.TreeSet.first(TreeSet.java:394)
at Verbalizer.getMostSpecificType(Verbalizer.java:617)
at Verbalizer.summarize(Verbalizer.java:538)
at AppKt$main$1.handle(App.kt:21)
at AppKt$main$1.handle(App.kt)
at spark.RouteImpl$1.handle(RouteImpl.java:58)
at spark.webserver.MatcherFilter.doFilter(MatcherFilter.java:162)
at spark.webserver.JettyHandler.doHandle(JettyHandler.java:61)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
at org.eclipse.jetty.server.Server.handle(Server.java:517)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:302)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:245)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:748)
// in a different place
com.google.common.util.concurrent.UncheckedExecutionException: HttpException: HttpException: 500: null HTTP 500 error making the query: SPARQL Request Failed
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2218)
at com.google.common.cache.LocalCache.get(LocalCache.java:4147)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4151)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:5140)
at org.aksw.avatar.dataset.CachedDatasetBasedGraphGenerator.generateGraph(CachedDatasetBasedGraphGenerator.java:134)
at Verbalizer.verbalize(Verbalizer.java:496)
at Verbalizer.verbalize(Verbalizer.java:487)
at Verbalizer.getSummary(Verbalizer.java:559)
at Verbalizer.summarize(Verbalizer.java:549)
at Verbalizer.summarize(Verbalizer.java:540)
at AppKt$main$1.handle(App.kt:21)
at AppKt$main$1.handle(App.kt)
at spark.RouteImpl$1.handle(RouteImpl.java:58)
at spark.webserver.MatcherFilter.doFilter(MatcherFilter.java:162)
at spark.webserver.JettyHandler.doHandle(JettyHandler.java:61)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
at org.eclipse.jetty.server.Server.handle(Server.java:517)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:302)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:245)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:748)
I have a full ~11Mb execution log if it can help.
Thank's for the bug report! Looks like 2 or (even 3 different bugs) ...
Some questions:
- Which version do you use?
- Is this the first time that it happened? Or does it always happen after some time once you restarted the server/service?
- Do you use the Web service?
- Which dataset is it based on? The log looks like it's DBpedia? If so, do you use the official endpoint?
I have a full ~11Mb execution log if it can help.
Yes, can you share the log file please?
Which version do you use?
Build is from ~2 months ago.
Is this the first time that it happened? Or does it always happen after some time once you restarted the server/service?
This is the first time happened. It was running fine for ~2 months. Then just broke at some point.
Do you use the Web service?
Nope. Used Verbalizer class to create my own REST API (see this for source)
Which dataset is it based on? The log looks like it's DBpedia? If so, do you use the official endpoint?
It is DBpedia, official endpoint. It was down occasionally, but at the moment of those errors - it was up. The only thing that fixed the error was restarting the whole thing.
I've attached the full log file to this reply, grab it here: avatar-errors.zip