celery/Changelog

==============
Change history
==============

0.1.14 [2009-05-19 01:08 P.M CET] askh@opera.com
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	* Fixed a syntax error in the ``TaskSet`` class.  (No such variable ``TimeOutError``).

0.1.13 [2009-05-19 12:36 P.M CET] askh@opera.com
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	* Forgot to add ``yadayada`` to install requirements.

	* Now deletes all expired task results, not just those marked as done.

	* Able to load the Tokyo Tyrant backend class without django
	  configuration, can specify tyrant settings directly in the class
	  constructor.

	* Improved API documentation

	* Now using the Sphinx documentation system, you can build
	  the html documentation by doing ::

		$ cd docs
		$ make html
	
	and the result will be in ``docs/.build/html``.

0.1.12 [2009-05-18 04:38 P.M CET] askh@opera.com
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    * delay_task() etc. now returns ``celery.task.AsyncResult`` object, which lets you check the result and any failure that might have happened.  It kind of works like the ``multiprocessing.AsyncResult`` class returned by ``multiprocessing.Pool.map_async``.

    * Added dmap() and dmap_async(). This works like the * ``multiprocessing.Pool`` versions except they are tasks distributed to the celery server. Example:

        >>> from celery.task import dmap
        >>> import operator
        >>> dmap(operator.add, [[2, 2], [4, 4], [8, 8]])
        >>> [4, 8, 16]
        
        >>> from celery.task import dmap_async
        >>> import operator
        >>> result = dmap_async(operator.add, [[2, 2], [4, 4], [8, 8]])
        >>> result.ready()
        False
        >>> time.sleep(1)
        >>> result.ready()
        True
        >>> result.result
        [4, 8, 16]

    * Refactored the task metadata cache and database backends, and added a new backend for Tokyo Tyrant. You can set the backend in your django settings file. e.g

        CELERY_BACKEND = "database"; # Uses the database

        CELERY_BACKEND = "cache"; # Uses the django cache framework

        CELERY_BACKEND = "tyrant"; # Uses Tokyo Tyrant
        TT_HOST = "localhost"; # Hostname for the Tokyo Tyrant server.
        TT_PORT = 6657; # Port of the Tokyo Tyrant server.

0.1.11 [2009-05-12 02:08 P.M CET] askh@opera.com
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	* The logging system was leaking file descriptors, resulting in servers stopping with the EMFILES (too many open files) error. (fixed)

0.1.10 [2009-05-11 12:46 P.M CET] askh@opera.com
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	* Tasks now supports both positional arguments and keyword arguments.

	* Requires carrot 0.3.8.

	* The daemon now tries to reconnect if the connection is lost.

0.1.8 [2009-05-07 12:27 P.M CET] askh@opera.com
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	* Better test coverage
	* More documentation
	* celeryd doesn't emit ``Queue is empty`` message if ``settings.CELERYD_EMPTY_MSG_EMIT_EVERY`` is 0.

0.1.7 [2009-04-30 1:50 P.M CET] askh@opera.com
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	* Added some unittests

	* Can now use the database for task metadata (like if the task has been executed or not). Set ``settings.CELERY_TASK_META``

	* Can now run ``python setup.py test`` to run the unittests from within the ``testproj`` project.

	* Can set the AMQP exchange/routing key/queue using ``settings.CELERY_AMQP_EXCHANGE``, ``settings.CELERY_AMQP_ROUTING_KEY``, and ``settings.CELERY_AMQP_CONSUMER_QUEUE``.

0.1.6 [2009-04-28 2:13 P.M CET] askh@opera.com
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	* Introducing ``TaskSet``. A set of subtasks is executed and you can find out how many, or if all them, are done (excellent for progress bars and such)

	* Now catches all exceptions when running ``Task.__call__``, so the daemon doesn't die. This does't happen for pure functions yet, only ``Task`` classes.

	* ``autodiscover()`` now works with zipped eggs.

	* celeryd: Now adds curernt working directory to ``sys.path`` for convenience.

	* The ``run_every`` attribute of ``PeriodicTask`` classes can now be a ``datetime.timedelta()`` object.

	* celeryd: You can now set the ``DJANGO_PROJECT_DIR`` variable for ``celeryd`` and it will add that to ``sys.path`` for easy launching.

	* Can now check if a task has been executed or not via HTTP.

	You can do this by including the celery ``urls.py`` into your project,

		>>> url(r'^celery/$', include("celery.urls"))

	then visiting the following url,::

		http://mysite/celery/$task_id/done/

	this will return a JSON dictionary like e.g:

		>>> {"task": {"id": $task_id, "executed": true}}

	* ``delay_task`` now returns string id, not ``uuid.UUID`` instance.

	* Now has ``PeriodicTasks``, to have ``cron`` like functionality.

	* Project changed name from ``crunchy`` to ``celery``. The details of the name change request is in ``docs/name_change_request.txt``.

0.1.0 [2009-04-24 11:28 A.M CET] askh@opera.com
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	* Initial release