I'm following the H2O GBM Tuning Tutorial for R (http://blog.h2o.ai/2016/06/h2o-gbm-tuning-tutorial-for-r/) and at the step of "Establish baseline performance", second model :
gbm <- h2o.gbm(x = predictors, y = response, training_frame = h2o.rbind(train, valid), nfolds = 4, seed = 0xDECAF)
I get this error message :
ERROR: Unexpected HTTP Status code: 500 Server Error (url = http://localhost:54321/99/Rapids)
Error: lexical error: invalid char in json text.
<html> <head> <meta http-equiv=
(right here) ------^
When I tried to execute just the 'h2o.rbind(train, valid)' I get the same error message :
ERROR: Unexpected HTTP Status code: 500 Server Error (url = http://localhost:54321/99/Rapids)
Error: lexical error: invalid char in json text.
<html> <head> <meta http-equiv=
(right here) ------^
**Information**
Version of H2O : 3.8.2.8
Type of machine : Windows 7, 64 bits
Language : R version 3.3.0 (2016-05-03)
Can anyone help me ?
Thank you for your feedback !
06-30 12:34:21.183 127.0.0.1:54321 8432 #08726-14 INFO: Method: POST , URI: /99/Rapids, route: /99/Rapids, parms: {ast=(tmp= RTMP_sid_8e5d_7 (rbind train.hex valid.hex)), session_id=_sid_8e5d} 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: java.lang.AssertionError: Input chunk (class water.fvec.C0DChunk) has float, but is expected to be categorical 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at water.rapids.ASTRBind$RbindMRTask.map(ASTColSlice.java:434) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at water.MRTask.compute2(MRTask.java:627) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at water.MRTask.compute2(MRTask.java:585) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at water.H2O$H2OCountedCompleter.compute1(H2O.java:1197) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at water.rapids.ASTRBind$RbindMRTask$Icer.compute1(ASTRBind$RbindMRTask$Icer.java) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at water.H2O$H2OCountedCompleter.compute(H2O.java:1193) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at jsr166y.CountedCompleter.exec(CountedCompleter.java:468) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at jsr166y.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:914) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:979) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477) 06-30 12:34:21.215 127.0.0.1:54321 8432 #08726-14 ERRR: at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
> dim(abt_dataset_training)
[1] 929 90
> dim(h2o.rbind(abt_dataset_training,abt_dataset_training))
ERROR: Unexpected HTTP Status code: 500 Server Error (url = http://localhost:54321/99/Rapids)
Error: lexical error: invalid char in json text.
<html> <head> <meta http-equiv=
(right here) ------^
07-29 10:43:00.929 127.0.0.1:54321 9848 #99666-20 INFO: Method: POST , URI: /99/Rapids, route: /99/Rapids, parms: {ast=(tmp= RTMP_sid_b68d_21 (rbind RTMP_sid_b68d_18 RTMP_sid_b68d_18)), session_id=_sid_b68d}
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: java.lang.AssertionError: Input chunk (class water.fvec.C0DChunk) has float, but is expected to be categorical
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.rapids.ASTRBind$RbindMRTask.map(ASTColSlice.java:434)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.MRTask.compute2(MRTask.java:627)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.MRTask.compute2(MRTask.java:585)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.MRTask.compute2(MRTask.java:585)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.MRTask.compute2(MRTask.java:585)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.H2O$H2OCountedCompleter.compute1(H2O.java:1197)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.rapids.ASTRBind$RbindMRTask$Icer.compute1(ASTRBind$RbindMRTask$Icer.java)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at water.H2O$H2OCountedCompleter.compute(H2O.java:1193)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at jsr166y.CountedCompleter.exec(CountedCompleter.java:468)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at jsr166y.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:914)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:979)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
07-29 10:43:00.946 127.0.0.1:54321 9848 #99666-20 ERRR: at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)