Comments (6)
fheslouin
commented on August 24, 2024
1
I tried individually each path from https://github.com/trbs/pid/blob/master/pid/utils.py#L26-L29, everything is working fine and I can not reproduce the issue I had, even whiteout specifying piddir it works.
I'll leave a comment if the issue re-appear.
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rbscholtus
commented on August 24, 2024
Could it be the script is running so fast you don't see the file appearing?
Could you perhaps use the following code in the PidFile context and
outcomment the ideascube stuff for now?
import time
time.sleep(15)
Barend
…On Thu, 22 Apr 2021 at 15:43, Florian HESLOUIN ***@***.***> wrote:
I'm having issue acquiring the lock file, either with decorator or context
manager.
Here is how I'm proceeding :
from pid import PidFile
if __name__ == "__main__":
with PidFile('deploy') as p:
ideascube = initIdeascube()
if ideascube.internet_is_up():
ideascube.install_ansible()
ideascube.run_deploy()
When I'm running the script /var/run/deploy is not always created. What
am I missing ?
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fheslouin
commented on August 24, 2024
The method deploy() takes quite a lot of time to be executed. It actually use subprocess.Popen and spawn an ansible command that execute a playbook. I have seen some issue at this stage with the lock. But this is not always happening and sometime it works and some time the script does not care about the lock.
Here is the complete script : https://gitlab.com/bibliosansfrontieres/tm/factory_manager/blob/master/scripts/kea/deploy.py#L248-253
I'm probably missing something...
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trbs
commented on August 24, 2024
It seems like it "should-just-work(tm)"...
Can't quickly see why this would fail in your script...
Some things to try from the top of my head:
- Try using
PidFile(register_atexit=False)just in case... (although since your using stock Python mostly I don't see why this would matter) - Try setting the debug log level (for PidFile Logger) and watch for the 'create pidfile' and 'closing pidfile' lines.
- Is anything else maybe cleaning up the file ? (some
tmpreapertype process on the machine ?) (in this case Barend's suggestion for little test script with time.sleep(...) should show the same behavior...) - If you suspect (or want to rule out) something else in the system you could try using
Pidfile(piddir="/some/test/directory")
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fheslouin
commented on August 24, 2024
thanks @trbs for your help ! I managed to have my script behave as expected. I used piddir="/some/test/directory" to specify the directory. I guess the regular /run/user/%s/ did not work so well with my system (Ubuntu 16.04.7 LTS)
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trbs
commented on August 24, 2024
Good to hear that you got it to work :-)
I am still very curious was the root cause of this issue is.
This might be a caveat to warn other people about... or maybe even change the default piddir if need be...
@fheslouin if you might have some time could you make a simple test case that (as reliable as possible) triggers this ?
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