Django Distributed Task Queue is a software system that allows you to process multiple tasks concurrently on a distributed network. This tool can scale up your Django web applications by managing asynchronous workload on a remote queue.
To install Celery using pip, simply type the following command: "$ pip install celery". If you prefer using easy_install, run the command "$ easy_install celery". If you have downloaded Celery's source tarball, install it by running the following command as root: "$ python setup.py build # python setup.py install".
Using Celery is a straightforward experience with its simple usage instructions. However, before using the framework, make sure that you have a message broker such as RabbitMQ running, and also ensure that the AMQP server is set up in your settings file.
Note that if you are using SQLite as your database backend, the celeryd will only be able to process one message at a time because SQLite does not allow concurrent writes.
Defining tasks in Celery is easy. To define your task, use the following commands: from celery.task import tasks and then from celery.log import setup_logger. The next step would be to create your task function. Ensure that the function only supports keyword arguments. Finally, register your task by using the command: task.register(do_something, "do_something").
Running tasks with Celery is quick and easy. Simply run the following command to tell the celery daemon to run a task: from celery.task import delay_task and then delay_task("do_something", some_arg="foo bar baz").
Autodiscovery is an amazing feature of Celery. It automatically loads any tasks.py module in the applications listed in your INSTALLED_APPS settings. To add this command to your urls.py file, use the following commands: from celery.task import tasks and tasks.autodiscover().
In the same way, you can add new tasks in your applications tasks.py module. Starting with the code block, import the necessary Celery libraries, functions and models. Define your task function and then register it using the command: tasks.register(increment_click, "increment_click").
Periodic tasks are tasks that are run every n seconds. They don't support extra arguments. The Celery framework has powerful support for periodic tasks. Here's an exemplary periodic task that illustrates how it works: from celery.task import tasks, PeriodicTask, from datetime import timedelta. Define your task and then register it by using: tasks.register(MyPeriodicTask). Remember that for periodic tasks to work, you need to add Celery to INSTALLED_APPS and issue a syncdb.
In conclusion, Celery is an amazing software that offers powerful support for distributed task management in the Django framework. Try it out today and enjoy its excellent features!
Version 0.8.0: N/A