pymongo and subinterpreters

[Patrice Espié]

Hi All,

I get a huge problem when using pymongo in my product: we use subinterpreters (Python3), and when closing a subinterpreter, I get an error telling there is at least one (daemon) thread still running.

It would be nice if I could have a way to fully stop pymongo (I cannot use it right now without this capability).

Thanks a lot!

Patrice

[Bernie Hackett]

Call MongoClient.close(). That shuts down all of the background threads.

https://api.mongodb.com/python/current/api/pymongo/mongo_client.html#pymongo.mongo_client.MongoClient.close

[Patrice Espié]

Hi Bernie,

Thanks for your fast answer!

I obviously tried to close() my client, and this does not close daemon thread at all... This is why I asked on the forum.

To be very precise, I obtain this error:

     "Py_EndInterpreter: not the last thread"

in the fonction "Py_EndInterpreter"

So I guess there is a bug in close() function, which does not do the whole job.

Am I wrong?

Thanks a lot for your help

Patrice

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[Shane Harvey]

Hi Patrice,

MongoClient.close() indeed does not join() its background threads, instead it asynchronously tells them to exit "soon". I opened https://jira.mongodb.org/browse/PYTHON-1634 for us to provide a better way to ensure all background threads have exited. For now I can only suggest to sleep for a few seconds after calling MongoClient.close(). Can we continue this discussion on the Jira ticket?

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