#18251: multithreading deadlock in django.models.loading.get_apps
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Reporter: harm | Owner: nobody
Type: Bug | Status: new
Component: Core (Other) | Version: 1.3
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by akaariai):
Could this work: in WSGIHandler, when serving request do:
{{{
from django.db.models.loading import app_cache_ready, get_apps
if not app_cache_ready():
get_apps()
}}}
I didn't put any lock in there - I think the get_apps call should be safe
as it pretty much immediately acquires the write_lock of app_cache. You
don't even need the if not app_cache_ready(), as get_apps() returns
immediately if apps are already loaded. It reads better to me that way..
Can you report if this works?
--
Ticket URL: <https://code.djangoproject.com/ticket/18251#comment:2>
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