Maximum Recursion Depth, when creating rapids string

[exalate-issue-sync[bot]]

Hi!

This ticket is the follow-up ticket to: https://h2oai.atlassian.net/browse/PUBDEV-8960 (The old bug-ticket can be deleted).

The Dataset I am using has the following structure: time,(CH20 MIN) Flow Speed (m/s),...,(CH24 SAMPLE COUNT) Conductivity,id,classes (36 columns, time series, name=paradox dataset)

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This is my code, which causes the error (shortened):

{code:python}

def jifa(): // x_test is a pandas dataframe features = create_features(x_test, column_id=automl_model.params.get('column_id'), column_value=automl_model.params.get('column_value'), column_kind=automl_model.params.get('column_kind'), column_sort=automl_model.params.get('column_sort'), settings=automl_model.feature_settings)

    features = convert_h2oframe_to_numeric(features, features.columns)
    *y_pre = automl_model.model.predict(features)['predict'].as_data_frame()*
    // This line triggers the error in h20

def create_features(data, column_id=None, column_value=None, column_kind=None, settings=None): """Load features.""" //extract_features is a method from ts-fresh to extract important features. features = extract_features(data, column_id=column_id, column_value=column_value, column_kind=column_kind, kind_to_fc_parameters=settings, impute_function=impute) features = h2o.H2OFrame(features).drop([0], axis=0) return features {code}

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The traceback in h20 is the following:

{panel:title=Traceback in h20} File “/src/model_selection/model_selection.py”, line 79, in compute_metrics y_pre = automl_model.model.predict(features)['predict'].as_data_frame() {color:#14892c}<-- Still my code{color}

File "/usr/local/lib/python3.8/site-packages/h2o/model/model_base.py", line 280, in predict j = H2OJob(h2o.api("POST /4/Predictions/models/%s/frames/%s" % (self.model_id, test_data.frame_id), data = {'custom_metric_func': custom_metric_func}),

File "/usr/local/lib/python3.8/site-packages/h2o/frame.py", line 415, in frame_id return self._frame()._ex._cache._id

File "/usr/local/lib/python3.8/site-packages/h2o/frame.py", line 735, in _frame self._ex._eager_frame()

File "/usr/local/lib/python3.8/site-packages/h2o/expr.py", line 90, in _eager_frame self._eval_driver('frame')

File "/usr/local/lib/python3.8/site-packages/h2o/expr.py", line 113, in _eval_driver exec_str = self._get_ast_str(top)

File "/usr/local/lib/python3.8/site-packages/h2o/expr.py", line 151, in _get_ast_str exec_str = "({} {})".format(self._op, " ".join([ExprNode._arg_to_expr(ast) for ast in self._children]))

File "/usr/local/lib/python3.8/site-packages/h2o/expr.py", line 151, in exec_str = "({} {})".format(self._op, " ".join([ExprNode._arg_to_expr(ast) for ast in self._children]))

{color:#14892c}Afterwards it reaches the maximum recursion depth. It jumps back and forth between the mehtodes, until the mrd.{color} {panel}

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If the _children of the ExpressionNode consist only out of ExpressionNodes and their children as well. Then it jumps between those mehtodes until the maximum recursion depth.

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It is related to this ticket, which tries to replace the recursive build: https://h2oai.atlassian.net/browse/PUBDEV-8252

(This would solve the problem.)

If the _children of the ExpressionNode consist only out of ExpressionNodes and their children as well. Then it jumps between the methodes __arg_to_expr() _and __get_aststr()

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I cannot upload the dataset to this bug-ticket, please send a mail to: [mailto:jakobkempter@gmail.com]. And I'll send the dataset to you.

[exalate-issue-sync[bot]]

Jakob Kempter commented: After creating an account, I can upload files. This is the dataset, which is causing the error.

[^data.csv]

[exalate-issue-sync[bot]]

Wendy Wong commented: Here is the description of the original ticket:

When performing the def _arg_to_expr(arg): in expr.py

If the _children of the ExpressionNode consists only out of ExpressionNodes and their children as well.

A maximum recursion depth is reached and the program crashes.

Why do I reach this maximum recursion depth? Is it caused by my dataset, my extracted features?

[h2o-ops]

JIRA Issue Details

Jira Issue: PUBDEV-8961 Assignee: Sebastien Poirier Reporter: N/A State: Open Fix Version: N/A Attachments: Available (Count: 1) Development PRs: N/A

[h2o-ops]

Attachments From Jira

Attachment Name: data.csv Attached By: Jakob Kempter File Link:https://h2o-3-jira-github-migration.s3.amazonaws.com/PUBDEV-8961/data.csv