我有一个 Django 项目，将huey 作为任务队列。在我的开发环境中（见下文），一切都按预期工作：
- [保存] Django 模型实例保存
- [触发] huey 任务触发
- [execute] huey 任务通过运行 consumer (
run_huey)来执行
但是我无法在我的生产环境中得到第三点 [执行]。我能发现的唯一区别是，消费者run_huey是由一个 systemd 服务单元启动的，而网络服务器是一个 Apache2（见下文）。DEBUG = True如果我在我的生产环境中设置也没关系。
消费者确实正确识别了db_task“ schedule_virusscan”，但没有接收/接收由我的模型保存方法触发的任何任务（此处schedule_virusscan(self.id)：）
我immediate=False用于我的 Huey 实例，因为我run_huey什至在我的开发环境中运行。
我得到这种行为huey.FileHuey和huey.SqliteHuey。
问题
我的消费者（仅在生产中）没有执行甚至接收任何任务，我错过了什么？
设置
网络服务器
- Debian Buster 上的 apache (2.4) 和 mod_wsgi (4.6.5)
run_huey并且 WSGIDaemonProcess 确实以相同（专用，非 root）用户身份运行
Django 项目
# settings.py
DEBUG = False # True in dev environment
HUEY = {
'huey_class': 'huey.FileHuey',
'path': '/tmp/huey',
'immediate': False,
'immediate_use_memory': False,
'consumer': {
'workers': 2, # use 2 threads
},
}
# my-huey-systemd-service-unit.service
[Unit]
After=network.target
[Service]
Restart=always
WorkingDirectory=/path/to/project
ExecStart=/path/to/venv/bin/python3 \
/path/to/project/manage.py run_huey \
--logfile=/path/to/project/wagtailapiforms-huey.log
ExecReload=/bin/kill -s SIGHUP $MAINPID
ExecStop=/bin/kill -s SIGINT $MAINPID
[Install]
WantedBy=default.target
# project/apps/core/tasks.py
from huey.contrib.djhuey import db_task
@db_task()
def schedule_virusscan(attachment_id):
print(f"Scan for virus for attachment with pk {attachment_id}...")
...
# project/apps/core/models.py
class Attachment(models.Model):
...
def save(self, *args, **kwargs):
from .tasks import schedule_virusscan
super().save()
print(f"Attachment instance {self.id}: trigger schedule_virusscan...")
_scan = schedule_virusscan(self.id)
# _scan()
# prints from server
[Tue Jun 29 2021] [wsgi:error] [pid 4825] [remote 10.1.x.x:36754] Attachment instance created, calling super().save()...
[Tue Jun 29 2021] [wsgi:error] [pid 4825] [remote 10.1.x.x:36754] Attachment instance 6b0dd19d-377d-43b6-9d9a-343c80793447: trigger schedule_virusscan...
[Tue Jun 29 2021] [wsgi:error] [pid 4825] [remote 10.1.x.x:36754] _scan: <Result: task 22306b18-d45e-4458-8052-138be9c996f1>
# prints from run_huey
# /path/to/project/wagtailapiforms-huey.log
[2021-06-29] INFO:huey.consumer:MainThread:Huey consumer started with 2 thread, PID 4494 at 2021-06-29 18:48:06.834951
[2021-06-29] INFO:huey.consumer:MainThread:Scheduler runs every 1 second(s).
[2021-06-29] INFO:huey.consumer:MainThread:Periodic tasks are enabled.
[2021-06-29] INFO:huey.consumer:MainThread:The following commands are available:
+ project.apps.core.tasks.schedule_virusscan
# Here I expected the output of the execution of received tasks - but on production this consumer does not receive anything.
# In my development environment this looks like:
# [2021-06-29 INFO:huey:Worker-2:Executing project.apps.core.tasks.schedule_virusscan: 4f877b2e-559a-43c9-9bf3-5821ea426842
# Huey task schedule_virusscan: Scan for virus for attachment with pk 38950ef9-469a-485c-afee-24cbc6fcef12...
# [2021-06-29] INFO:huey:Worker-2:project.apps.core.tasks.schedule_virusscan: 4f877b2e-559a-43c9-9bf3-5821ea426842 executed in 0.109s