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From "stephen mallette (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (TINKERPOP-2021) Prevent maximum recursion depth failure
Date Tue, 04 Sep 2018 19:01:00 GMT

     [ https://issues.apache.org/jira/browse/TINKERPOP-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stephen mallette closed TINKERPOP-2021.
---------------------------------------
       Resolution: Fixed
         Assignee: stephen mallette
    Fix Version/s: 3.3.4
                   3.4.0

Seemed to be related to a bad merge - fixed with

https://github.com/apache/tinkerpop/commit/69bbbed7b4282c5a7f7439c06e7113c0d99f6566

and a test was added here to protect from regressions:

https://github.com/apache/tinkerpop/commit/425bcd032adc9967a6b575da8042df3806671825

> Prevent maximum recursion depth failure
> ---------------------------------------
>
>                 Key: TINKERPOP-2021
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2021
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: python
>    Affects Versions: 3.3.3
>            Reporter: stephen mallette
>            Assignee: stephen mallette
>            Priority: Major
>             Fix For: 3.4.0, 3.3.4
>
>
> There have been at least two separate reported errors around "maximum recursion depth":
> https://groups.google.com/d/msg/gremlin-users/9X9wuUnrFAQ/-cIUYPDYCwAJ
> https://stackoverflow.com/q/51741181/1831717
> Typical error message looks like this:
> {code}
> ERROR | tornado.application | function: handle_callback_exception | line: 638 | Exception
in callback functools.partial(<function wrap.<locals>.null_wrapper at 0x1097911e0>)
> Traceback (most recent call last):
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/ioloop.py",
line 605, in _run_callback
>     ret = callback()
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/stack_context.py",
line 277, in null_wrapper
>     return fn(*args, **kwargs)
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/iostream.py",
line 562, in wrapper
>     return callback(*args)
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/stack_context.py",
line 345, in wrapped
>     raise_exc_info(exc)
>   File "<string>", line 4, in raise_exc_info
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/stack_context.py",
line 316, in wrapped
>     ret = fn(*args, **kwargs)
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/websocket.py",
line 869, in _on_frame_length_64
>     self._read_frame_data(False)
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/websocket.py",
line 849, in _read_frame_data
>     self._on_masked_frame_data if masked else self._on_frame_data)
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/lib/python3.6/site-packages/tornado/iostream.py",
line 319, in read_bytes
>     assert isinstance(num_bytes, numbers.Integral)
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/bin/../lib/python3.6/abc.py", line
184, in __instancecheck__
>     if subclass in cls._abc_cache:
>   File "~/.local/share/virtualenvs/caladrius-5FocEuMm/bin/../lib/python3.6/_weakrefset.py",
line 75, in __contains__
>     return wr in self.data
> RecursionError: maximum recursion depth exceeded in comparison
> {code}
> doesn't seem to happen on 3.2.9.



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