java.lang.AssertionError

JIRA | Nidhi Mehta | 2 years ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    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 | 2 years 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