[BUG] Test error on linux gpu with fastai

[miguelgfierro]

Description

    @pytest.mark.smoke
    @pytest.mark.gpu
    def test_fastai_smoke(notebooks):
        notebook_path = notebooks["fastai"]
        pm.execute_notebook(
            notebook_path,
            OUTPUT_NOTEBOOK,
            kernel_name=KERNEL_NAME,
>           parameters=dict(TOP_K=10, MOVIELENS_DATA_SIZE="100k", EPOCHS=1),
        )

tests/smoke/test_notebooks_gpu.py:72: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/data/anaconda/envs/nightly_reco_gpu/lib/python3.6/site-packages/papermill/execute.py:100: in execute_notebook
    raise_for_execution_errors(nb, output_path)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

nb = {'cells': [{'cell_type': 'code', 'metadata': {'inputHidden': True, 'hide_input': True}, 'execution_count': None, 'sour...nd_time': '2020-02-10T16:14:36.593733', 'duration': 14.501099, 'exception': True}}, 'nbformat': 4, 'nbformat_minor': 2}
output_path = 'output.ipynb'

    def raise_for_execution_errors(nb, output_path):
        """Assigned parameters into the appropriate place in the input notebook
    
        Parameters
        ----------
        nb : NotebookNode
           Executable notebook object
        output_path : str





E           --> 150         with pd.option_context('display.max_colwidth', -1):
E               151             display(HTML(df.to_html(index=False)))
E               152 
E           
E           /data/anaconda/envs/nightly_reco_gpu/lib/python3.6/site-packages/pandas/_config/config.py in __enter__(self)
E               405 
E               406         for pat, val in self.ops:
E           --> 407             _set_option(pat, val, silent=True)
E               408 
E               409     def __exit__(self, *args):
E           
E           /data/anaconda/envs/nightly_reco_gpu/lib/python3.6/site-packages/pandas/_config/config.py in _set_option(*args, **kwargs)
E               125         o = _get_registered_option(key)
E               126         if o and o.validator:
E           --> 127             o.validator(v)
E               128 
E               129         # walk the nested dict
E           
E           /data/anaconda/envs/nightly_reco_gpu/lib/python3.6/site-packages/pandas/_config/config.py in is_nonnegative_int(value)
E               842 
E               843     msg = "Value must be a nonnegative integer or None"
E           --> 844     raise ValueError(msg)
E               845 
E               846 
E           
E           ValueError: Value must be a nonnegative integer or None

link to log: https://dev.azure.com/best-practices/recommenders/_build/results?buildId=22669&view=logs&j=513fa82f-6bf5-5d01-2457-cb22781e601b&t=9e260265-5f8c-5335-1126-375960d54d1f

In which platform does it happen?

How do we replicate the issue?

Expected behavior (i.e. solution)

Other Comments

[anargyri]

This link points to NNI (the same error as the other issue), not to FastAI.

[loomlike]

@anargyri @miguelgfierro So is this nni-related issue or fastai with a wrong link?

[miguelgfierro]

it is fastai, I fixed the link

[anargyri]

I can't replicate either this or the NNI issue. Both tests pass on another VM after generating the conda files from scratch. Most likely there is some problem with the build VM, not with the code. I suggest you try again on the build VM with a completely new and fresh conda environment.

[loomlike]

Based on the error message, I believe the error is related to this: https://forums.fast.ai/t/fastai-v1-and-pandas-1-0-0-error-in-tabular-data-show-xys/63210

Seems like the test is now passing. Has either fastai package or pandas package version changed in reco_gpu.yaml?

[miguelgfierro]

it is weird, the last 5 or so tests failed and today it runs correctly. Not sure why, I also saw that the master tests are not running daily https://dev.azure.com/best-practices/recommenders/_build/results?buildId=21076&view=results (last time it run was on Jan 18), does anyone changed this?

[loomlike]

Confirmed (and replicated) the issue with changing pandas package versions.
pandas==1.0.0 causes the issue.
pandas==1.0.1 fixes.

So, how do we want to handle this at the env file now...?