[issue34367] AsyncResult.get() only notifies one thread

[Irit Katriel]

Irit Katriel  added the comment:

Fixed in Python 3 and Python 2 is past EOL.

--
nosy: +iritkatriel
resolution:  -> out of date
stage:  -> resolved
status: open -> closed

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue34367] AsyncResult.get() only notifies one thread

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


--
nosy: +xtreak

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

[issue34367] AsyncResult.get() only notifies one thread

[Alexander Tsvetkov]

New submission from Alexander Tsvetkov :

If more than one thread is waiting for the multiprocessing.pool.AsyncResult 
(aka ApplyResult) returned from apply_async, only one thread will be notified 
once the result arrives.

It happens because AsyncResult._set calls notify upon the result arrival, not 
notify_all.

threading.Event used in Python 3 uses notify_all.

Reproduction script is attached.
Expected outcome:
1
1
is printed to STDOUT.

Observed outcome:
The script hangs.

--
components: Library (Lib)
files: async_result_demo.py
messages: 323323
nosy: AlexWithBeard
priority: normal
severity: normal
status: open
title: AsyncResult.get() only notifies one thread
versions: Python 2.7
Added file: https://bugs.python.org/file47736/async_result_demo.py

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com