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Getting docs ready fro 0.2.0
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97
README.rst
97
README.rst
@@ -4,7 +4,7 @@ Django Q
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A multiprocessing task queue for Django
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---------------------------------------
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|image0| |image1| |image2|
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|image0| |image1| |docs| |image2|
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Features
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~~~~~~~~
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@@ -18,6 +18,8 @@ Features
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- Django Admin integration
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- PaaS compatible with multiple instances
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- Multi cluster monitor
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- Redis
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- Python 2 and 3
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Requirements
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~~~~~~~~~~~~
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@@ -28,28 +30,34 @@ Requirements
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- `Arrow <https://github.com/crsmithdev/arrow>`__
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- `Blessed <https://github.com/jquast/blessed>`__
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Tested with: Python 2.7, 3.4. Django 1.7.8, 1.8.2\*
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Tested with: Python 2.7 & 3.4. Django 1.7.8 & 1.8.2
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\*\ *Django Q is currently in Alpha and as such not safe for production,
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yet.*
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Installation
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~~~~~~~~~~~~
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- Install the latest version with pip: ``pip install django-q``
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- Add `django_q` to `INSTALLED_APPS` in your settings.py:
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- Install the latest version with pip::
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.. code:: python
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$ pip install django-q
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- Add :mod:`django_q` to your :const:`INSTALLED_APPS` in your projects :file:`settings.py`::
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INSTALLED_APPS = (
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# other apps
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'django_q',
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)
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- Run ``python manage.py migrate`` to create the database tables
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- Run Django migrations to create the database tables::
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$ python manage.py migrate
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- Make sure you have a `Redis <http://redis.io/>`__ server running
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somewhere
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Read more complete documentation on `http://django-q.readthedocs.org <http://django-q.readthedocs.org>`__
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Configuration
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~~~~~~~~~~~~~
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@@ -72,50 +80,20 @@ All configuration settings are optional. e.g:
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'db': 0, }
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}
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- **name**: Used to differentiate between projects using the same Redis
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server\*. Defaults to 'default'.
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- **workers**: The number of workers to use in the cluster. Defaults to CPU count.
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- **recycle**: The number of tasks a worker will process before
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respawning. Used to release resources. Defaults to 500
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- **timeout**: The number of seconds a worker is allowed to spend on a task before it's terminated. Defaults to None.
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- **compress**: Compress task packages to Redis. Useful for large
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payloads. Defaults to False
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- **save\_limit**: Limits the amount of successful tasks saved to
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Django. Set to 0 for unlimited. Set to -1 for no success storage at
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all. Failures are always saved. Defaults to 250
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- **label**: The label used for the Django Admin page. Defaults to 'Django Q'
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- **redis**: Connection settings for Redis. Follows standard Redis-Py syntax. Defaults to standard localhost.
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\*\ *Django Q uses your SECRET\_KEY to encrypt task packages and prevent
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task crossover*
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Management Commands
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~~~~~~~~~~~~~~~~~~~
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qcluster
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^^^^^^^^
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Start a cluster with::
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Start a cluster with: ``python manage.py qcluster``
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$ python manage.py qcluster
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qmonitor
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^^^^^^^^
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Monitor your clusters with::
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Monitor your clusters with ``python manage.py qmonitor``
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$ python manage.py qmonitor
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Creating Tasks
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~~~~~~~~~~~~~~
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Async
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^^^^^
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Use async from your code to quickly offload tasks:
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.. code:: python
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@@ -125,7 +103,7 @@ Use async from your code to quickly offload tasks:
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# create the task
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async('math.copysign', 2, -2)
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# or with import and storing the id
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# or with a reference
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import math.copysign
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task_id = async(copysign, 2, -2)
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@@ -144,13 +122,6 @@ Use async from your code to quickly offload tasks:
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.. code:: python
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async(func,*args,**kwargs)
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- **func**: Function to execute. Dotted string or reference.
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- **args**: Optional arguments for the function.
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- **hook**: Optional function to call after execution. Dotted string or reference.
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- **kwargs**: Optional keyword arguments for the function.
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Schedule
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^^^^^^^^
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@@ -161,7 +132,7 @@ Admin page or directly from your code:
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from django_q import Schedule, schedule
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# Use the schedule wrapper
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# Use the schedule function
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schedule('math.copysign',
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2, -2,
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@@ -176,26 +147,6 @@ Admin page or directly from your code:
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schedule_type=Schedule.DAILY
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)
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.. code:: python
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schedule(func,*args,**kwargs)
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- **func**: the function to schedule. Dotted strings only.
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- **args**: arguments for the scheduled function.
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- **hook**: optional result hook function. Dotted strings only.
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- **schedule_type**: (O)nce, (H)ourly, (D)aily, (W)eekly, (M)onthly, (Q)uarterly, (Y)early
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- **repeats**: Number of times to repeat schedule. -1=Always, 0=Never, n=n.
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- **next_run**: Next or first scheduled execution datetime.
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- **kwargs**: optional keyword arguments for the scheduled function.
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Models
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~~~~~~
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- `Task` and `Schedule` are Django Models and can therefore be managed by your own code.
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- `Task` objects are only created after an async package has been executed.
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- A `Schedule` creates a new async package for every execution and thus an unique `Task`
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- `Success` and `Failure` are convenient proxy models of `Task`
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Testing
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~~~~~~~
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@@ -226,3 +177,7 @@ Acknowledgements
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:target: https://coveralls.io/r/Koed00/django-q?branch=master
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.. |image2| image:: http://badges.gitter.im/Join%20Chat.svg
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:target: https://gitter.im/Koed00/django-q
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.. |docs| image:: https://readthedocs.org/projects/docs/badge/?version=latest
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:alt: Documentation Status
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:scale: 100
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:target: https://django-q.readthedocs.org/
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