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.
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