Here is the stacktrace Caused by: org.apache.solr.common.SolrException: Failed to create new ManagedResource /schema/model-store of type org.apache.solr.ltr.store.rest.ManagedModelStore due to: org.apache.solr.common.SolrException: org.apache.solr.ltr.model.ModelException: Model type does not exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel at org.apache.solr.core.SolrCore.<init>(SolrCore.java:965) at org.apache.solr.core.SolrCore.reload(SolrCore.java:641) at org.apache.solr.core.CoreContainer.reload(CoreContainer.java:1107) ... 37 more Caused by: org.apache.solr.common.SolrException: Failed to create new ManagedResource /schema/model-store of type org.apache.solr.ltr.store.rest.ManagedModelStore due to: org.apache.solr.common.SolrException: org.apache.solr.ltr.model.ModelException: Model type does not exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel at org.apache.solr.rest.RestManager.createManagedResource(RestManager.java:700) a at org.apache.solr.rest.RestManager.addRegisteredResource(RestManager.java:666) at org.apache.solr.rest.RestManager.access$300(RestManager.java:59) at org.apache.solr.rest.RestManager$Registry.registerManagedResource(RestManager.java:231) at org.apache.solr.ltr.store.rest.ManagedModelStore.registerManagedModelStore(ManagedModelStore.java:52) at org.apache.solr.ltr.search.LTRQParserPlugin.inform(LTRQParserPlugin.java:119) at org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:719) at org.apache.solr.core.SolrCore.<init>(SolrCore.java:944) ... 39 more Caused by: org.apache.solr.common.SolrException: org.apache.solr.ltr.model.ModelException: Model type does not exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel at org.apache.solr.ltr.store.rest.ManagedModelStore.addModelFromMap(ManagedModelStore.java:137) at org.apache.solr.ltr.store.rest.ManagedModelStore.loadStoredModels(ManagedModelStore.java:127) at org.apache.solr.ltr.search.LTRQParserPlugin.onManagedResourceInitialized(LTRQParserPlugin.java:133) at org.apache.solr.rest.ManagedResource.notifyObserversDuringInit(ManagedResource.java:115) at org.apache.solr.rest.ManagedResource.loadManagedDataAndNotify(ManagedResource.java:91) at org.apache.solr.rest.RestManager.createManagedResource(RestManager.java:694) ... 46 more Caused by: org.apache.solr.ltr.model.ModelException: Model type does not exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel at org.apache.solr.ltr.model.LTRScoringModel.getInstance(LTRScoringModel.java:103) at org.apache.solr.ltr.store.rest.ManagedModelStore.fromLTRScoringModelMap(ManagedModelStore.java:235) at org.apache.solr.ltr.store.rest.ManagedModelStore.initWrapperModel(ManagedModelStore.java:254) at org.apache.solr.ltr.store.rest.ManagedModelStore.fromLTRScoringModelMap(ManagedModelStore.java:245) at org.apache.solr.ltr.store.rest.ManagedModelStore.addModelFromMap(ManagedModelStore.java:134) ... 51 more Caused by: org.apache.solr.common.SolrException: Error instantiating class: 'org.apache.solr.ltr.model.MultipleAdditiveTreesModel' at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:655) at org.apache.solr.ltr.model.LTRScoringModel.getInstance(LTRScoringModel.java:93) ... 55 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:637) ... 56 more Caused by: java.lang.NullPointerException at org.apache.solr.ltr.model.MultipleAdditiveTreesModel.<init>(MultipleAdditiveTreesModel.java:308) ... 61 more
On Wed, Mar 14, 2018 at 10:32 AM, Alessandro Benedetti <a.benede...@sease.io > wrote: > This is the piece of code involved : > > "try { > // create an instance of the model > model = solrResourceLoader.newInstance( > className, > LTRScoringModel.class, > new String[0], // no sub packages > new Class[] { String.class, List.class, List.class, String.class, > List.class, Map.class }, > new Object[] { name, features, norms, featureStoreName, > allFeatures, params }); > if (params != null) { > SolrPluginUtils.invokeSetters(model, params.entrySet()); > } > } catch (final Exception e) { > throw new ModelException("Model type does not exist " + className, > e); > }" > > I admit it is generic and contains even a catch "Exception" clause, but > wasn't it logging the stacktrace ? > Just out of curiosity, how was the entire stacktrace ? > > This may help to improve it. > > Regards > > > > ----- > --------------- > Alessandro Benedetti > Search Consultant, R&D Software Engineer, Director > Sease Ltd. - www.sease.io > -- > Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html >