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Random error on `.explode()`

See original GitHub issue

System information

OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Ubuntu 21.04
Modin version (modin.__version__): 0.10.2
Python version: 3.7
Code we can use to reproduce:

import modin.pandas as pd
# create a bunch of pd.DataFrame-s
df = df.explode([_bunch of col names_])

Describe the problem

Random error, works again once all the cells in Jupyter are ran again (without any modifications):

UserWarning: `DataFrame.explode` defaulting to pandas implementation.

---------------------------------------------------------------------------
Exception                                 Traceback (most recent call last)
<timed exec> in <module>

~/anaconda3/envs/venv_ray/lib/python3.7/site-packages/modin/pandas/dataframe.py in explode(self, column, ignore_index)
    817         """
    818         return self._default_to_pandas(
--> 819             pandas.DataFrame.explode, column, ignore_index=ignore_index
    820         )
    821 

~/anaconda3/envs/venv_ray/lib/python3.7/site-packages/modin/pandas/base.py in _default_to_pandas(self, op, *args, **kwargs)
    455         args = try_cast_to_pandas(args)
    456         kwargs = try_cast_to_pandas(kwargs)
--> 457         pandas_obj = self._to_pandas()
    458         if callable(op):
    459             result = op(pandas_obj, *args, **kwargs)

~/anaconda3/envs/venv_ray/lib/python3.7/site-packages/modin/pandas/dataframe.py in _to_pandas(self)
   2848         pandas.DataFrame
   2849         """
-> 2850         return self._query_compiler.to_pandas()
   2851 
   2852     def _validate_eval_query(self, expr, **kwargs):

~/anaconda3/envs/venv_ray/lib/python3.7/site-packages/modin/backends/pandas/query_compiler.py in to_pandas(self)
    253 
    254     def to_pandas(self):
--> 255         return self._modin_frame.to_pandas()
    256 
    257     @classmethod

~/anaconda3/envs/venv_ray/lib/python3.7/site-packages/modin/engines/base/frame/data.py in to_pandas(self)
   2232                 ErrorMessage.catch_bugs_and_request_email(
   2233                     not df.axes[axis].equals(self.axes[axis]),
-> 2234                     f"Internal and external indices on axis {axis} do not match.",
   2235                 )
   2236             df.index = self.index

~/anaconda3/envs/venv_ray/lib/python3.7/site-packages/modin/error_message.py in catch_bugs_and_request_email(cls, failure_condition, extra_log)
     61                 "Internal Error. "
     62                 "Please email bug_reports@modin.org with the traceback and command that"
---> 63                 " caused this error.\n{}".format(extra_log)
     64             )
     65 

Exception: Internal Error. Please email bug_reports@modin.org with the traceback and command that caused this error.
Internal and external indices on axis 1 do not match.

Source code / logs

Issue Analytics

State:
Created 2 years ago
Comments:7 (4 by maintainers)

Top GitHub Comments

1reaction

devin-petersohncommented, Sep 20, 2021

Haha, sounds good. The elusive bugs are always the most fun to work on. Please let us know if it happens again!

0reactions

jmakovcommented, Oct 15, 2021

Will do. Thanks for the quick support! Couldn’t reproduce on ray 1.7.0.

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