mahout-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Alessandro Binhara <binh...@gmail.com>
Subject Group lens example
Date Thu, 02 Dec 2010 18:43:34 GMT
Hello all ..

I have a sucess to deploy grouplens example in tomcat..

but..i got this error :

I checked the data file and it is not corrupted.


** Exception report

*message* **

*description* *The server encountered an internal error () that prevented it
from fulfilling this request.*

*exception*

javax.servlet.ServletException: Servlet.init() for servlet
taste-recommender threw exception
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	java.lang.Thread.run(Thread.java:636)

*root cause*

java.io.IOException: Unexpected input format on line: 1474
	org.apache.mahout.cf.taste.example.grouplens.GroupLensDataModel.convertGLFile(GroupLensDataModel.java:63)
	org.apache.mahout.cf.taste.example.grouplens.GroupLensDataModel.<init>(GroupLensDataModel.java:48)
	org.apache.mahout.cf.taste.example.grouplens.GroupLensDataModel.<init>(GroupLensDataModel.java:40)
	org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommender.<init>(GroupLensRecommender.java:41)
	sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.lang.reflect.Constructor.newInstance(Constructor.java:532)
	java.lang.Class.newInstance0(Class.java:372)
	java.lang.Class.newInstance(Class.java:325)
	org.apache.mahout.cf.taste.web.RecommenderSingleton.<init>(RecommenderSingleton.java:51)
	org.apache.mahout.cf.taste.web.RecommenderSingleton.initializeIfNeeded(RecommenderSingleton.java:42)
	org.apache.mahout.cf.taste.web.RecommenderServlet.init(RecommenderServlet.java:74)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	java.lang.Thread.run(Thread.java:636)

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message