celery

How do I schedule a task with celery that runs on 1st of every month? Since Celery 3.0 the crontab schedule now supports day_of_month and month_of_year arguments: http://docs.celeryproject.org/en/latest/userguide/periodic-tasks.html#crontab-schedules You can do this using Crontab schedules and you cand define this either: in your django settings.py : from celery.schedules import crontab CELERYBEAT_SCHEDULE = { 'my_periodic_task': { 'task': 'my_app.tasks.my_periodic_task', 'schedule': crontab(0, 0, day_of_month='1'), # Execute on the first day of every month. }, } in celery.py config: from

Is it possible to set DEBUG=False for only a specific app in Django? Celery has a known memory leak when debugging is enabled. I have a development server where I want Celery to run as a service, without debugging so it doesn't leak memory, but I want the rest of my Django app to use debugging so errors will be shown when testing. Celery doesn't have a memory leak, it's how Django works: When DEBUG is enabled Django appends every executed SQL statement to django.db.connection.queries , this will grow unbounded in a long running process environment. I guess you could use a hack like: if

I am using celery with a rabbitmq backend. It is producing thousands of queues with 0 or 1 items in them in rabbitmq like this: $ sudo rabbitmqctl list_queues Listing queues ... c2e9b4beefc7468ea7c9005009a57e1d 1 1162a89dd72840b19fbe9151c63a4eaa 0 07638a97896744a190f8131c3ba063de 0 b34f8d6d7402408c92c77ff93cdd7cf8 1 f388839917ff4afa9338ef81c28aad75 0 8b898d0c7c7e4be4aa8007b38ccc00ea 1 3fb4be51aaaa4ac097af535301084b01 1 This seems to be inefficient, but further I have observed that these queues persist long after processing is finished. I have found the task that appears to be doing this:

celery beat 之Pidfile (celerybeat.pid) already exists报错 今天在django中利用celery来自动添加任务时，执行 celery beat -A celery_task -l info 启动一个添加任务的服务时报错:Pidfile (celerybeat.pid) already exists 报错原因 celery beat 在运行时，会自动创建两个文件: pidfile ：默认为 celerybeat.pid ，保存在项目根目录。 scheduler ：默认为 celerybeat-schedule ，保存在项目根目录。 这里的报错说明 pidfile 已存在。上次运行的时候，已经自动创建了，进程结束的时候并未自动删除，从而导致再次运行的时候报错了。 解决方法 直接删除这个 pidfile 文件，再次启动 celery beat celery beat -A celery_task -l info 运行成功了。 那么难道每次重启都得先删除么？参考网上说法，如果在启动celery beat的时候配置pidfile参数，并将该参数设置为空，可以规避这个问题。 来源： https://www.cnblogs.com/863652104kai/p/11565764.html

Using node-celery , we can enable node to push Celery jobs to the task queue. How can we allow node to be a Celery worker and consume the queue? For Celery if the end point is amqp. Checkout Celery.js Github any node process started as amqp consumer would work fine. For every other self.conf.backend_type types you can have varied consumer. Following example is merely for amqp. One such example. The message below may be the Celery task object. var amqp = require('amqp'); var connection = amqp.createConnection({ host: "localhost", port: 5672 }); connection.on('ready', function () { connection

I have no need to the celery modules in my Django admin. Is there a way I could remove it? okm To be more specific, in admin.py of any app inside INSTALLED_APPS after 'djcelery' from django.contrib import admin from djcelery.models import ( TaskState, WorkerState, PeriodicTask, IntervalSchedule, CrontabSchedule) admin.site.unregister(TaskState) admin.site.unregister(WorkerState) admin.site.unregister(IntervalSchedule) admin.site.unregister(CrontabSchedule) admin.site.unregister(PeriodicTask) You can simply unregister celerys models like admin.site.unregister(CeleryModelIdoNotWantInAdmin) 来源：