java.lang.AssertionError

JIRA | Nidhi Mehta | 1 year ago
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    master H2O Build git hash f14e37fa0de17531b99a78051242427400c17e47 upload attached file reproable when cancel the job at ~40% progress ( i.e after first cv is over, and cv2 at ~ 1000T ) 1) buildModel 'gbm', {"model_id":"gbm3","training_frame":"Key_Frame__birds.hex","nfolds":"3","response_column":"area","ignored_columns":["log.area.","log.ENN."],"ignore_const_cols":true,"ntrees":"5000","max_depth":"2","min_rows":10,"nbins":20,"nbins_cats":1024,"seed":-3296175731703812600,"learn_rate":"0.01","distribution":"AUTO","score_each_iteration":false,"fold_assignment":"AUTO","r2_stopping":0.999999,"build_tree_one_node":false,"checkpoint":"","keep_cross_validation_predictions":false,"nbins_top_level":1024} Got exception 'class java.lang.AssertionError', with msg 'null' java.lang.AssertionError at hex.ModelBuilder.updateModelOutput(ModelBuilder.java:206) at hex.tree.SharedTree.access$3800(SharedTree.java:25) at hex.tree.SharedTree$Driver.compute2(SharedTree.java:231) at water.H2O$H2OCountedCompleter.compute(H2O.java:1005) at jsr166y.CountedCompleter.exec(CountedCompleter.java:429) at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263) at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974) at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477) at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) 2) when try to rebuild the model with the same name again, get locked key error- Got exception 'class java.lang.AssertionError', with msg 'Can't unlock: Not locked!' java.lang.AssertionError: Can't unlock: Not locked! at water.Lockable$Unlock.atomic(Lockable.java:181) at water.Lockable$Unlock.atomic(Lockable.java:176) at water.TAtomic.atomic(TAtomic.java:17) at water.Atomic.compute2(Atomic.java:55) at water.Atomic.fork(Atomic.java:39) at water.Atomic.invoke(Atomic.java:31) at water.Lockable.unlock(Lockable.java:171) at hex.tree.SharedTree$Driver.compute2(SharedTree.java:232) at water.H2O$H2OCountedCompleter.compute(H2O.java:1005) at jsr166y.CountedCompleter.exec(CountedCompleter.java:429) 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) 3) try deleting all frames by doing get frames, get - Error evaluating future[3] Error calling DELETE /3/Frames/gbm3_cv_2_Key_Frame__birds.hex_train class water.fvec.Frame gbm3_cv_2_Key_Frame__birds.hex_train is already in use. Unable to use it now. Consider using a different destination name. 4) then do a get frames again , get - Rollups not possible, because Vec was deleted: $04ff01000000ffffffff$_95033eefc138be115eefa9e9f5ee42dd

    JIRA | 1 year ago | Nidhi Mehta
    java.lang.AssertionError

    Root Cause Analysis

    1. java.lang.AssertionError

      No message provided

      at hex.ModelBuilder.updateModelOutput()
    2. hex
      ModelBuilder.updateModelOutput
      1. hex.ModelBuilder.updateModelOutput(ModelBuilder.java:206)
      1 frame
    3. hex.tree
      SharedTree$Driver.compute2
      1. hex.tree.SharedTree.access$3800(SharedTree.java:25)
      2. hex.tree.SharedTree$Driver.compute2(SharedTree.java:231)
      2 frames
    4. water
      H2O$H2OCountedCompleter.compute
      1. water.H2O$H2OCountedCompleter.compute(H2O.java:1005)
      1 frame
    5. jsr166y
      ForkJoinWorkerThread.run
      1. jsr166y.CountedCompleter.exec(CountedCompleter.java:429)
      2. jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)
      3. jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974)
      4. jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
      5. jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
      5 frames