[jira] [Created] (FLINK-25207) sample pyflink from documentation doesn't work in jupyter notebooks

["Stephan Pirson (Jira)" <ji...@apache.org>]

Stephan Pirson created FLINK-25207:
--------------------------------------

             Summary: sample pyflink from documentation doesn't work in jupyter notebooks
                 Key: FLINK-25207
                 URL: https://issues.apache.org/jira/browse/FLINK-25207
             Project: Flink
          Issue Type: Bug
          Components: API / Python
    Affects Versions: 1.14.0
         Environment: Windows 3.10

new conda environment, python = 3.8

pip install apache-flink notebook kafka-python
            Reporter: Stephan Pirson


copy/pasted the tutorial from this page:
[https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/dev/python/datastream_tutorial/]

into a new cell of a new notebook.

called word_count(None, None)

output cell was:
 
{code:java}
Executing word_count example with default input data set.
Use --input to specify file input.
Printing result to stdout. Use --output to specify output path.
Exception in thread Thread-22:
Traceback (most recent call last):
  File "E:\dev\Conda\envs\py38\lib\threading.py", line 932, in _bootstrap_inner
    self.run()
  File "E:\dev\Conda\envs\py38\lib\site-packages\apache_beam\runners\worker\data_plane.py", line 218, in run
    while not self._finished.wait(next_call - time.time()):
  File "E:\dev\Conda\envs\py38\lib\threading.py", line 558, in wait
    signaled = self._cond.wait(timeout)
  File "E:\dev\Conda\envs\py38\lib\threading.py", line 306, in wait
    gotit = waiter.acquire(True, timeout)
OverflowError: timeout value is too large
{code}

In the command line where the notebook was started, the output of the job was printed:


 
{code:java}
WARNING: All illegal access operations will be denied in a future release
+I[To, 1]
+I[be,, 1]
etc.{code}
 
If not easily fixable, maybe a mention that this doesn't work well in notebooks could be useful, considering how prevalent an environment they are.
 



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