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From Sean Owen <sro...@gmail.com>
Subject Re: Group lens example
Date Thu, 02 Dec 2010 18:57:29 GMT
I'm not sure what file you are feeding it but it is not the right data file.
Check your input.

On Thu, Dec 2, 2010 at 6:43 PM, Alessandro Binhara <binhara@gmail.com>wrote:

> 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)
>

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