Hi Tishan, This is an expected behaviour since we have changed the model classes in ML 1.1.0.
@Rukshani can you please document this under [1]. [1] https://docs.wso2.com/display/ML110/WSO2+CEP+Extension+for+ML+Predictions On Thu, Feb 18, 2016 at 12:12 PM, Tishan Dahanayakage <[email protected]> wrote: > Hi all, > > ML models built with ML 1.0.0 is not compatible with ML 1.1.0. If we try > to use a model build with 1.0.0 against ML 1.1.0 features following > exception is generated. Came across this when testing ML extension for CEP. > > > org.wso2.carbon.event.processor.core.exception.ExecutionPlanConfigurationException: > org.wso2.siddhi.core.exception.ExecutionPlanCreationException: Error while > retrieving ML-model : > registry:/_system/governance/2.Model.2015-12-22_19-47-59 > org.wso2.carbon.ml.core.spark.models.MLGeneralizedLinearModel; local class > incompatible: stream classdesc serialVersionUID = -1410218250358516850, > local class serialVersionUID = 8020448562088344988 in execution plan > "ExecutionPlanML" > at > org.wso2.carbon.event.processor.core.internal.util.helper.EventProcessorHelper.validateExecutionPlan(EventProcessorHelper.java:193) > ... > Caused by: org.wso2.siddhi.core.exception.ExecutionPlanCreationException: > Error while retrieving ML-model : > registry:/_system/governance/2.Model.2015-12-22_19-47-59 > org.wso2.carbon.ml.core.spark.models.MLGeneralizedLinearModel; local class > incompatible: stream classdesc serialVersionUID = -1410218250358516850, > local class serialVersionUID = 8020448562088344988 > at > org.wso2.carbon.ml.siddhi.extension.PredictStreamProcessor.logError(PredictStreamProcessor.java:350) > at > org.wso2.carbon.ml.siddhi.extension.PredictStreamProcessor.init(PredictStreamProcessor.java:187) > ... 82 more > > Is this expected behavior? If so I think we need to mention that models > are not backward compatible in docs. > > > -- > Tishan Dahanayakage > Software Engineer > WSO2, Inc. > Mobile:+94 716481328 > > Disclaimer: This communication may contain privileged or other > confidential information and is intended exclusively for the addressee/s. > If you are not the intended recipient/s, or believe that you may have > received this communication in error, please reply to the sender indicating > that fact and delete the copy you received and in addition, you should not > print, copy, re-transmit, disseminate, or otherwise use the information > contained in this communication. Internet communications cannot be > guaranteed to be timely, secure, error or virus-free. The sender does not > accept liability for any errors or omissions. > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- Thanks & Regards, Fazlan Nazeem *Software Engineer* *WSO2 Inc* Mobile : +94772338839 <%2B94%20%280%29%20773%20451194> [email protected]
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