Multiprocess error triggers while trying example code
Ch41r05 opened this issue · 3 comments
Ch41r05 commented
Hi AmenRa,
First of all I'd like to thank you for your efforts.
I'm trying to use retriv, but when I use the sample code you provided in the readme, I get the following error:
Building TDF matrix: 0%| | 0/4 [00:00<?, ?it/s] vocabulary, X = self._count_vocab(raw_documents, self.fixed_vocabulary_)
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\sklearn\feature_extraction\text.py", line 1268, in _count_vocab
for doc in raw_documents:
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\tqdm\std.py", line 1182, in __iter__
for obj in iterable:
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multipipe\multipipe.py", line 28, in to_generator
with Pool(n_threads) as pool:
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multiprocess\context.py", line 119, in Pool
return self._repopulate_pool_static(self._ctx, self.Process,
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multiprocess\pool.py", line 329, in _repopulate_pool_static
w.start()
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multiprocess\process.py", line 121, in start
self._popen = self._Popen(self)
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multiprocess\context.py", line 336, in _Popen
return Popen(process_obj)
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multiprocess\popen_spawn_win32.py", line 45, in __init__
prep_data = spawn.get_preparation_data(process_obj._name)
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multiprocess\spawn.py", line 154, in get_preparation_data
_check_not_importing_main()
File "C:\Users\mcelli\Documents\Training\Python\cosinematrix\venv\lib\site-packages\multiprocess\spawn.py", line 134, in _check_not_importing_main
raise RuntimeError('''
RuntimeError:
An attempt has been made to start a new process before the
current process has finished its bootstrapping phase.
This probably means that you are not using fork to start your
child processes and you have forgotten to use the proper idiom
in the main module:
if __name__ == '__main__':
freeze_support()
...
The "freeze_support()" line can be omitted if the program
is not going to be frozen to produce an executable.
return Pool(processes, initializer, initargs, maxtasksperchild,
By just running the example code:
# Note: SearchEngine is an alias for the SparseRetriever
from retriv import SearchEngine
collection = [
{"id": "doc_1", "text": "Generals gathered in their masses"},
{"id": "doc_2", "text": "Just like witches at black masses"},
{"id": "doc_3", "text": "Evil minds that plot destruction"},
{"id": "doc_4", "text": "Sorcerer of death's construction"},
]
se = SearchEngine("new-index").index(collection)
se.search("witches masses")
Could you please help me fix this issue?
AmenRa commented
Hi, I cannot reproduce.
I freshly installed retriv
and its working correctly in my environment.
I suspect it's an issue related to your operating system (see this).
Let me know if the following snippet works:
from retriv import SearchEngine
def main():
collection = [
{"id": "doc_1", "text": "Generals gathered in their masses"},
{"id": "doc_2", "text": "Just like witches at black masses"},
{"id": "doc_3", "text": "Evil minds that plot destruction"},
{"id": "doc_4", "text": "Sorcerer of death's construction"},
]
se = SearchEngine("new-index").index(collection)
results = se.search("witches masses")
print(results)
if __name__ == '__main__':
main()
Ch41r05 commented
Thanks @AmenRa , that was my case, stupidly forgot to check if that clause was there.
AmenRa commented
You are welcome!
Please, consider giving retriv
a star if you like it.