Celery on Windows: subprocess.call Access is denied in Celery, runs fine in Django

Question

I have the following task:

@task(track_started = True)
def run_transcode_server():
    commands = ('java', '-cp', settings.TRANSCODE_CLASSPATH, settings.TRANSCODE_JAVA_CLASS)
    subprocess.call(commands)

Making the call to subprocess.call directly in the django shell works just fine. However, when celery tries to run that task, it causes this error: WindowsError: [Error 5] Access is denied.

I am running everything under the same user (this is my development environment).

What is causing this? Why can't celery execute subprocesses?

Do you run Django shell and celeryd from the same user? – demalexx Jan 28 '12 at 15:07 — demalexx, Jan 28 '12 at 15:07

score 1 · Accepted Answer · edited May 23 '17 at 12:20

1

Something similar here: https://stackoverflow.com/a/7130809/1049127

Did you try writing the full path to the Java executable?

edited May 23 '17 at 12:20

Community

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answered Jan 28 '12 at 15:38

StefanoP

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It turns out that I forgot that although the shell works with `java`, when I call it from pythong, I need to call `java.exe`. – Marcin Jan 28 '12 at 16:03

Celery on Windows: subprocess.call Access is denied in Celery, runs fine in Django

1 Answers1