Caused by: java.lang.ClassCastException: class com.mahout.solr.classifier.CategorizeDocumentFactory at java.lang.Class.asSubclass(Unknown Source) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:433) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:381) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:526) ... 21 more
There seems to be a problem related class loaders, e.g. CategorizeDocumentFactory which extends UpdateRequestProcessorFactory, loaded by class loader "B", but Solr core has loaded UpdateRequestProcessorFactory via class loader "A" or something like that... koji -- http://www.rondhuit.com/