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4289966d1b
This work implements what was defined in DEP 14 (https://github.com/django/deps/blob/main/accepted/0014-background-workers.rst). Thanks to Raphael Gaschignard, Eric Holscher, Ran Benita, Sarah Boyce, Jacob Walls, and Natalia Bidart for the reviews.
65 lines
1.6 KiB
Python
65 lines
1.6 KiB
Python
import logging
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import sys
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from asgiref.local import Local
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from django.core.signals import setting_changed
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from django.dispatch import Signal, receiver
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from .base import TaskResultStatus
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logger = logging.getLogger("django.tasks")
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task_enqueued = Signal()
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task_finished = Signal()
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task_started = Signal()
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@receiver(setting_changed)
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def clear_tasks_handlers(*, setting, **kwargs):
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"""Reset the connection handler whenever the settings change."""
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if setting == "TASKS":
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from . import task_backends
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task_backends._settings = task_backends.settings = (
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task_backends.configure_settings(None)
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)
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task_backends._connections = Local()
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@receiver(task_enqueued)
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def log_task_enqueued(sender, task_result, **kwargs):
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logger.debug(
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"Task id=%s path=%s enqueued backend=%s",
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task_result.id,
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task_result.task.module_path,
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task_result.backend,
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)
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@receiver(task_started)
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def log_task_started(sender, task_result, **kwargs):
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logger.info(
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"Task id=%s path=%s state=%s",
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task_result.id,
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task_result.task.module_path,
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task_result.status,
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)
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@receiver(task_finished)
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def log_task_finished(sender, task_result, **kwargs):
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logger.log(
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(
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logging.ERROR
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if task_result.status == TaskResultStatus.FAILED
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else logging.INFO
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),
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"Task id=%s path=%s state=%s",
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task_result.id,
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task_result.task.module_path,
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task_result.status,
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# Signal is sent inside exception handlers, so exc_info() is available.
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exc_info=sys.exc_info(),
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)
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