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[oslo][futurist] Possible bug in futurist waiters.wait_for_any


Hello,

Thanks for the heads up.

You are right this is related to https://bugs.python.org/issue20319
futurist implement a similar code than the cpython concurrent.future code
but not fixed yet.

I just submitted a patch to fix that, feel free to review it:
- https://review.opendev.org/689691

Thanks

Le sam. 19 oct. 2019 à 08:44, info at dantalion.nl <info at dantalion.nl> a
écrit :

> Hello everyone,
>
> I think I have found a significant bug in the futurist concurrency
> library that is breaking for my application.
>
> If I launch a threadpool and submit n > 1 number of tasks. If now for
> any n of these tasks such a task calls Condition.wait(). Than when
> waiters.wait_for_any is called from the main thread it will block
> indefinitely instead of returning the n - 1 tasks that have completed.
> Furthermore setting the timeout parameter in wait_for_any is
> subsequently ignored.
>
> I have submitted this as a bug report on launchpad:
> https://bugs.launchpad.net/futurist/+bug/1848457
>
> Any help on this is really appreciated as I think it is a significant
> issue.
>
> Kind regards,
> Corne Lukken (Dantali0n)
>
> PS: I also submitted this over on stackoverflow:
>
> https://stackoverflow.com/questions/58410610/calling-condition-wait-inside-thread-causes-retrieval-of-any-future-to-block-o
>
>
>
>
>

-- 
Hervé Beraud
Senior Software Engineer
Red Hat - Openstack Oslo
irc: hberaud
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