Patrick, I went to http://search-lucene.com/solr and searched for: pcj
Hit # 2 shows this response: http://search-lucene.com/m/SUTgW1ELRsZ Note where pcj & friends should be placed. I hope this fixes the problem. Otis ---- Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch Lucene ecosystem search :: http://search-lucene.com/ ----- Original Message ---- > From: Patrick Pekczynski <pekczyn...@googlemail.com> > To: solr-user@lucene.apache.org > Sent: Sun, January 16, 2011 8:57:41 AM > Subject: Solr 1.4.1 and carrot2 clustering > > Dear all, > > I really enjoy using Solr so far. During the last days I tried to activate > the >ClusteringComponent in Solr as indicated here > > http://wiki.apache.org/solr/ClusteringComponent > > and copied all the relevant java libraries in the WEB-INF/lib folder of my >tomcat installation of Solr. > > But everytime I try to issue a request to my Solr server using > >http://localhost:9005/apache-solr-1.4.1/job0/select?q=*:*&fl=title,score,url&start=0&rows=100&indent=on&clustering=true >e > > I get the following error message: > > java.lang.NoClassDefFoundError: bak/pcj/set/IntSet > at >org.carrot2.text.preprocessing.PreprocessingPipeline.<init>(PreprocessingPipeline.java:47) > > at >org.carrot2.clustering.lingo.LingoClusteringAlgorithm.<init>(LingoClusteringAlgorithm.java:108) > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native >Method) > at >sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) > > at >sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) > > at java.lang.reflect.Constructor.newInstance(Constructor.java:513) > at java.lang.Class.newInstance0(Class.java:355) > at java.lang.Class.newInstance(Class.java:308) > at >org.carrot2.util.pool.SoftUnboundedPool.borrowObject(SoftUnboundedPool.java:114) > at >org.carrot2.core.CachingController.borrowProcessingComponent(CachingController.java:329) > > > > > Hence I have downloaded the corresponding pcj-1.2.jar providing the > interface >"bak.pcj.set.IntSet" and I have also put it in the WEB-INF/lib folder > > But I still keep getting this error message though the corresponding > interface >MUST be on the classpath now. > > Can anyone help me out with this one? I'm really eager to give this > clustering >extension a try from within Solr using the 1.4.1 version that I have already > running on my server. > > Thanks for a brief feedback. > > Best regards, > > Patrick >