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Merge pull request #25 from carrotquest/fix-connection-licks-in-parallel-threads
Fixed django database connection leaking in child threads
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commit
2a694ee623
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@ -172,11 +172,28 @@ class ExceptionThread(Thread):
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super(ExceptionThread, self).__init__(*args, **kwargs)
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self.exc = None
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def _close_django_db_connections(self):
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"""
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In Django every thread has its own database connection pool.
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But django does not close them automatically in child threads.
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As a result, this can cause database connection leaking.
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Here we close connections manually when thread execution is finished.
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"""
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try:
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from django.db import connections as db_connections
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except (ModuleNotFoundError, ImportError):
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db_connections = None
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if db_connections:
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db_connections.close_all()
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def run(self):
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try:
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return super(ExceptionThread, self).run()
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except Exception as e:
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self.exc = e
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finally:
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self._close_django_db_connections()
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def join(self, timeout=None):
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super(ExceptionThread, self).join(timeout=timeout)
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