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apmorton avatar apmorton commented on August 16, 2024

This issue is caused by https://github.com/nickstenning/honcho/blob/master/honcho/process.py#L141

from the python docs: On Windows kill() is an alias for terminate()

The terminate function in the ProcessManager class basically kills each process twice when running on windows.

I think what happens is essentially a race condition with the return code checking.

If I change the function to only issue SIGALRM if not ON_WINDOWS and do nothing otherwise, there are no exceptions and the code still works properly.

On a slightly unrelated note, this issue only occurs on some programs run for me. specifically the django runserver command. Which also happens to not output anything over stdout until I try and terminate it, and then it dumps everything at once, which could also be related, since that would cause the delay in termination and hence trigger the race.

I do not know if the same issue with runserver occurs on linux regarding the output not being sent immediately.

from honcho.

nickstenning avatar nickstenning commented on August 16, 2024

Closing in favour of tracking this issue in #39.

from honcho.

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