Mayya Sharipova created LUCENE-10006:
----------------------------------------
Summary: poll_mirrors.py release script doesn't work processes
properly on Mac
Key: LUCENE-10006
URL: https://issues.apache.org/jira/browse/LUCENE-10006
Project: Lucene - Core
Issue Type: Bug
Reporter: Mayya Sharipova
On my Mac machine with Python 3.9.5 running:
{{python3 -u dev-tools/scripts/poll-mirrors.py -version 8.9.0 -o}}
results in following recursive errors, unless manually forced to stop:
{code:java}
"/~/.lucene-releases/8.9.0/lucene-solr/dev-tools/scripts/poll-mirrors.py", line
158, in <module>
with Pool(processes=5) as pool:
File
"/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/multiprocessing/context.py",
line 119, in Pool
return Pool(processes, initializer, initargs, maxtasksperchild,
File
....
File
"/usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/multiprocessing/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.
{code}
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