9cf2f9f298
This will remove imports from __future__ that are no longer needed. https://docs.python.org/3.5/library/2to3.html#2to3fixer-future
35 lines
861 B
Python
35 lines
861 B
Python
"""
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Signal handler for exceptions.
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"""
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# pylint: disable=unused-argument
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import logging
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from celery.signals import task_postrun
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from django.conf import settings
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from django.core.signals import got_request_exception
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from django.dispatch import receiver
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from edx_django_utils.cache import RequestCache
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@receiver(got_request_exception)
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def record_request_exception(sender, **kwargs):
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"""
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Logs the stack trace whenever an exception
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occurs in processing a request.
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"""
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logging.exception(u"Uncaught exception from {sender}".format(
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sender=sender
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))
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@task_postrun.connect
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def _clear_request_cache(**kwargs):
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"""
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Once a celery task completes, clear the request cache to
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prevent memory leaks.
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"""
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if getattr(settings, 'CLEAR_REQUEST_CACHE_ON_TASK_COMPLETION', True):
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RequestCache.clear_all_namespaces()
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