rollup not possible error.

22 views

Skip to first unread message

fansi...@gmail.com

unread,

Nov 16, 2016, 10:36:54 AM11/16/16

to H2O Open Source Scalable Machine Learning - h2ostream

Hi guys,

I am trying to build a model using h2o.grid("deeplearning",...). After the grid search, I got the following error.

[2016-11-16 02:15:56] failure_details: Rollups not possible, because Vec was deleted: $04ff32000000ffffffff$_a7df2c18122c03c2e5fb37ababb345f2
[2016-11-16 02:15:56] failure_stack_traces: java.lang.RuntimeException: Rollups not possible, because Vec was deleted: $04ff32000000ffffffff$_a7df2c18122c03c2e5fb37ababb345f2
at water.fvec.RollupStats.start(RollupStats.java:287)
at water.fvec.Vec.startRollupStats(Vec.java:718)
at water.fvec.Vec.startRollupStats(Vec.java:706)
at water.fvec.Frame.bulkRollups(Frame.java:428)
at water.fvec.Frame.means(Frame.java:447)
at hex.Model.predictScoreImpl(Model.java:1052)
at hex.deeplearning.DeepLearningModel.predictScoreImpl(DeepLearningModel.java:559)
at hex.Model.score(Model.java:926)
at hex.Model.score(Model.java:898)
at hex.deeplearning.DeepLearningModel.doScoring(DeepLearningModel.java:412)
at hex.deeplearning.DeepLearning$DeepLearningDriver.trainModel(DeepLearning.java:430)
at hex.deeplearning.DeepLearning$DeepLearningDriver.buildModel(DeepLearning.java:301)
at hex.deeplearning.DeepLearning$DeepLearningDriver.computeImpl(DeepLearning.java:208)
at hex.ModelBuilder$Driver.compute2(ModelBuilder.java:169)
at hex.deeplearning.DeepLearning$DeepLearningDriver.compute2(DeepLearning.java:201)
at water.H2O$H2OCountedCompleter.compute(H2O.java:1203)
at jsr166y.CountedCompleter.exec(CountedCompleter.java:468)
at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)
at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974)
at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)

What does it mean? How can I fix it?