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Makoto Yui commented on HIVEMALL-268: ------------------------------------- initScheme is not initialized when no hyperparameter is passed. {code:java} org.apache.hadoop.hive.ql.metadata.HiveException: Exception caused in the 2-th call of train() at hivemall.fm.FactorizationMachineUDTF.train(FactorizationMachineUDTF.java:404) at hivemall.fm.FactorizationMachineUDTF.runTrainingIteration(FactorizationMachineUDTF.java:617) at hivemall.fm.FactorizationMachineUDTF.close(FactorizationMachineUDTF.java:477) at org.apache.hadoop.hive.ql.exec.UDTFOperator.closeOp(UDTFOperator.java:143) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:577) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:588) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:588) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:588) at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:227) at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343) at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler.runSubtask(LocalContainerLauncher.java:380) at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler.runTask(LocalContainerLauncher.java:301) at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler.access$200(LocalContainerLauncher.java:187) at org.apache.hadoop.mapred.LocalContainerLauncher$EventHandler$1.run(LocalContainerLauncher.java:230) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException at hivemall.fm.FactorizationMachineUDTF.trainTheta(FactorizationMachineUDTF.java:424) at hivemall.fm.FactorizationMachineUDTF.train(FactorizationMachineUDTF.java:401) ... 20 more {code} > train_ffm(features,label) causes NPE while train_ffm(features,label,'') works > fine > ---------------------------------------------------------------------------------- > > Key: HIVEMALL-268 > URL: https://issues.apache.org/jira/browse/HIVEMALL-268 > Project: Hivemall > Issue Type: Bug > Affects Versions: 0.5.2 > Reporter: Makoto Yui > Assignee: Makoto Yui > Priority: Critical > Fix For: 0.6.0 > > > train_ffm(features,label) causes NPE while train_ffm(features,label,'') works > fine. > {code:java} > Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Exception caused > in the 1-th call of train() > at > hivemall.fm.FactorizationMachineUDTF.train(FactorizationMachineUDTF.java:404) > at > hivemall.fm.FactorizationMachineUDTF.process(FactorizationMachineUDTF.java:314) > at > org.apache.hadoop.hive.ql.exec.UDTFOperator.processOp(UDTFOperator.java:107) > at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:793) > at > org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:87) > at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:793) > at > org.apache.hadoop.hive.ql.exec.ExtractOperator.processOp(ExtractOperator.java:45) > at > org.apache.hadoop.hive.ql.exec.mr.ExecReducer.reduce(ExecReducer.java:262) > ... 11 more > Caused by: java.lang.NullPointerException > at > hivemall.fm.FactorizationMachineModel.initV(FactorizationMachineModel.java:391) > at > hivemall.fm.FFMStringFeatureMapModel.getV(FFMStringFeatureMapModel.java:152) > at > hivemall.fm.FieldAwareFactorizationMachineModel.predict(FieldAwareFactorizationMachineModel.java:98) > at > hivemall.fm.FieldAwareFactorizationMachineUDTF.trainTheta(FieldAwareFactorizationMachineUDTF.java:195) > at > hivemall.fm.FactorizationMachineUDTF.train(FactorizationMachineUDTF.java:401) > ... 18 more > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)