如何使用django正确守护celerybeat? [英] How to properly daemonize celerybeat with django?
问题描述
有几个与此问题类似的问题，但是没有一个问题有合适的解决方案，也没有描述完全相同的问题.
There are a couple of questions similar to this one, but neither one has a proper solution, nor describes the exact same problem.
如果我自己从命令行启动celery，则周期性任务可以很好地与我的配置配合使用，
Periodic tasks work fine with my config if I start celery by myself from the command line, like so:
celery --app=proj.mycelery worker -B
问题是当我尝试守护芹菜时.遵循本教程之后，我通过以下方式启动服务:
The problem is when I try to daemonize celery. After following this tutorial, I start the service with:
sudo /etc/init.d/celerybeat start
它似乎开始正常，但是设置为每5秒执行一次的定期任务只是没有发生.
and it seems to start fine, but the periodic task that is set to execute every 5 seconds, just doesn't happen.
这些是我在Django的settings.py中的芹菜设置:
These are my celery settings inside Django's settings.py:
BROKER_URL = 'amqp://guest:guest@localhost//'
CELERY_ACCEPT_CONTENT = ['json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
这是我的/etc/default/celerybeat 配置:
# Absolute or relative path to the 'celery' command:
CELERY_BIN="/home/burzum/.pyenv/versions/old_django/bin/celery"
# App instance to use
CELERY_APP="proj.mycelery"
# Where to chdir at start.
CELERYBEAT_CHDIR="/home/burzum/repos/proj/"
# Extra arguments to celerybeat
CELERYBEAT_OPTS="--schedule=/var/run/celery/celerybeat-schedule"
export DJANGO_SETTINGS_MODULE="proj.settings"
CELERYD_CHDIR="/home/burzum/repos/proj"
/etc/init.d/celerybeat 文件与本教程中的文件相同(
The /etc/init.d/celerybeat file is the same as taken from the tutorial (this one). I just added the following line at the beginning:
export PYTHONPATH='/home/burzum/repos'
/var/log/celery/beat.log 的输出为:
[2015-11-23 09:15:18,304: INFO/MainProcess] beat: Starting...
[2015-11-23 09:15:23,307: INFO/MainProcess] Scheduler: Sending due task reports.tasks.test_periodic_task (reports.tasks.test_periodic_task)
[2015-11-23 09:15:28,310: INFO/MainProcess] Scheduler: Sending due task reports.tasks.test_periodic_task (reports.tasks.test_periodic_task)
因此，似乎正在调用定期任务，但是什么也没有发生.
So, it looks like the periodic task is being called, but nothing is happening.
sudo/etc/init.d/celerybeat状态的输出是:
celery init v10.1.
Using configuration: , /etc/default/celerybeat
celerybeat (pid 11696) is up...
使用 sudo sh -x/etc/init.d/celerybeat start 启动服务的输出是:
Output of starting the service with sudo sh -x /etc/init.d/celerybeat start is:
+ VERSION=10.1
+ export PYTHONPATH=/home/burzum/repos
+ echo celery init v10.1.
celery init v10.1.
+ id -u
+ [ 0 -ne 0 ]
+ [ -L /etc/init.d/celerybeat ]
+ SCRIPT_FILE=/etc/init.d/celerybeat
+ basename /etc/init.d/celerybeat
+ SCRIPT_NAME=celerybeat
+ scripts=
+ test -f /etc/default/celeryd
+ EXTRA_CONFIG=/etc/default/celerybeat
+ test -f /etc/default/celerybeat
+ scripts=, /etc/default/celerybeat
+ _config_sanity /etc/default/celerybeat
+ local path=/etc/default/celerybeat
+ ls -ld /etc/default/celerybeat
+ awk {print $3}
+ local owner=root
+ ls -ld /etc/default/celerybeat+
cut -b 6
+ local iwgrp=-
+ ls -ld+ /etc/default/celerybeat
cut -b 9
+ local iwoth=-
+ id -u root
+ [ 0 != 0 ]
+ [ - != - ]
+ [ - != - ]
+ . /etc/default/celerybeat
+ CELERY_BIN=/home/burzum/.pyenv/versions/old_django/bin/celery
+ CELERY_APP=proj.mycelery
+ CELERYBEAT_CHDIR=/home/burzum/repos/proj/
+ CELERYBEAT_OPTS=--schedule=/var/run/celery/celerybeat-schedule
+ export DJANGO_SETTINGS_MODULE=proj.settings
+ CELERYD_CHDIR=/home/burzum/repos/proj
+ echo Using configuration: , /etc/default/celerybeat
Using configuration: , /etc/default/celerybeat
+ CELERY_BIN=/home/burzum/.pyenv/versions/old_django/bin/celery
+ DEFAULT_USER=celery
+ DEFAULT_PID_FILE=/var/run/celery/beat.pid
+ DEFAULT_LOG_FILE=/var/log/celery/beat.log
+ DEFAULT_LOG_LEVEL=INFO
+ DEFAULT_CELERYBEAT=/home/burzum/.pyenv/versions/old_django/bin/celery beat
+ CELERYBEAT=/home/burzum/.pyenv/versions/old_django/bin/celery beat
+ CELERYBEAT_LOG_LEVEL=INFO
+ CELERY_APP_ARG=
+ [ ! -z proj.mycelery ]
+ CELERY_APP_ARG=--app=proj.mycelery
+ CELERYBEAT_USER=celery
+ CELERY_CREATE_DIRS=0
+ CELERY_CREATE_RUNDIR=0
+ CELERY_CREATE_LOGDIR=0
+ [ -z ]
+ CELERYBEAT_PID_FILE=/var/run/celery/beat.pid
+ CELERY_CREATE_RUNDIR=1
+ [ -z ]
+ CELERYBEAT_LOG_FILE=/var/log/celery/beat.log
+ CELERY_CREATE_LOGDIR=1
+ export CELERY_LOADER
+ CELERYBEAT_OPTS=--schedule=/var/run/celery/celerybeat-schedule -f /var/log/celery/beat.log -l INFO
+ [ -n ]
+ dirname /var/log/celery/beat.log
+ CELERYBEAT_LOG_DIR=/var/log/celery
+ dirname /var/run/celery/beat.pid
+ CELERYBEAT_PID_DIR=/var/run/celery
+ CELERYBEAT_CHDIR=/home/burzum/repos/proj/
+ [ -n /home/burzum/repos/proj/ ]
+ DAEMON_OPTS= --workdir=/home/burzum/repos/proj/
+ export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/sbin:/sbin
+ check_dev_null
+ [ ! -c /dev/null ]
+ check_paths
+ [ 1 -eq 1 ]
+ create_default_dir /var/log/celery
+ [ ! -d /var/log/celery ]
+ [ 1 -eq 1 ]
+ create_default_dir /var/run/celery
+ [ ! -d /var/run/celery ]
+ start_beat
+ echo Starting celerybeat...
Starting celerybeat...
+ _chuid --app=proj.mycelery --schedule=/var/run/celery/celerybeat-schedule -f /var/log/celery/beat.log -l INFO --workdir=/home/burzum/repos/proj/ --detach --pidfile=/var/run/celery/beat.pid
+ su celery -c /home/burzum/.pyenv/versions/old_django/bin/celery beat --app=proj.mycelery --schedule=/var/run/celery/celerybeat-schedule -f /var/log/celery/beat.log -l INFO --workdir=/home/burzum/repos/proj/ --detach --pidfile=/var/run/celery/beat.pid
+ exit 0
推荐答案
最后，这是一个有效的示例.
This is a working example, finally.
- 制作celery_service.conf
- 制作celery.service
例如，使用Centos systemctl运行服务.就是这样.
Run service with Centos systemctl, for example. And that's it.
我添加了有用的脚本:
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