>From what I know, OneToOneDependancy come into play when spark tries to create the RDD dependency tree.
Just thought of sharing that. this would be a good resource [1] :-) [1] https://databricks-training.s3.amazonaws.com/slides/advanced-spark-training.pdf On Thu, Aug 13, 2015 at 12:09 AM, Nirmal Fernando <[email protected]> wrote: > What is *org.apache.spark.OneToOneDependency ? Is it something you use?* > > On Wed, Aug 12, 2015 at 11:30 PM, Madawa Soysa <[email protected]> > wrote: > >> Hi, >> >> I created a model summary in order to show the model data in the >> analysis.jag page. >> But when refreshing the page after building the model I get the following >> error. >> >> org.wso2.carbon.ml.core.exceptions.MLAnalysisHandlerException: An error >> has occurred while extracting all the models of analysis id: 13 >> at >> org.wso2.carbon.ml.core.impl.MLAnalysisHandler.getAllModelsOfAnalysis(MLAnalysisHandler.java:245) >> at >> org.wso2.carbon.ml.rest.api.AnalysisApiV10.getAllModelsOfAnalysis(AnalysisApiV10.java:517) >> Caused by: >> org.wso2.carbon.ml.database.exceptions.DatabaseHandlerException: An error >> has occurred while extracting all the models of analysis id: 13 >> at >> org.wso2.carbon.ml.database.internal.MLDatabaseService.getAllModels(MLDatabaseService.java:1797) >> at >> org.wso2.carbon.ml.core.impl.MLAnalysisHandler.getAllModelsOfAnalysis(MLAnalysisHandler.java:243) >> ... 52 more >> >> *Caused by: java.lang.ClassNotFoundException: >> org.apache.spark.OneToOneDependency cannot be found by >> org.scala-lang.scala-library_2.10.4.v20140209-180020-VFINAL-b66a3965* >> at >> org.wso2.carbon.ml.database.util.MLDBUtil.getModelSummaryFromInputStream(MLDBUtil.java:54) >> at >> org.wso2.carbon.ml.database.internal.MLDatabaseService.getAllModels(MLDatabaseService.java:1790) >> ... 53 more >> >> I guess there is an error in persistence of the model summary object, >> what should be the cause for this error? [1] >> <https://github.com/madawas/carbon-ml/commit/987c799231dad2bab6f4046df7acc672d0564f22> >> contains >> the commit which I introduced the model summary. >> >> [1] - >> https://github.com/madawas/carbon-ml/commit/987c799231dad2bab6f4046df7acc672d0564f22 >> >> -- >> >> *_________________________________**Madawa Soysa* >> >> Undergraduate, >> >> Department of Computer Science and Engineering, >> >> University of Moratuwa. >> >> >> Mobile: +94 71 461 6050 <%2B94%2075%20812%200726> | Email: >> [email protected] >> LinkedIn <http://lk.linkedin.com/in/madawasoysa> | Twitter >> <https://twitter.com/madawa_rc> | Tumblr <http://madawas.tumblr.com/> >> > > > > -- > > Thanks & regards, > Nirmal > > Team Lead - WSO2 Machine Learner > Associate Technical Lead - Data Technologies Team, WSO2 Inc. > Mobile: +94715779733 > Blog: http://nirmalfdo.blogspot.com/ > > > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- *Niranda Perera* Software Engineer, WSO2 Inc. Mobile: +94-71-554-8430 Twitter: @n1r44 <https://twitter.com/N1R44> https://pythagoreanscript.wordpress.com/
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