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================
Change history
================
.. contents::
:local:
.. _version-2.5.0:
2.5.0
=====
:release-date: 2011-12-16 04:00 P.M GMT
:status: FROZEN
:branch: master
.. _v250-important:
Important Notes
---------------
* The broker connection pool is now enabled by default.
The default limit is 10 connections,
if you have many threads/green-threads using connections you may want
to tweak this limit to avoid contention.
See the :setting:`BROKER_POOL_LIMIT` for more information.
* AMQP Result Backend: Exchange no longer *auto delete*.
The exchange used for results used to have the *auto_delete* flag set,
that could result in annoying race conditions.
.. admonition:: For RabbitMQ users
Old exchanges created with the *auto_delete* flag enabled has
to be removed, this is because they are no longer equivalent to the
exchanges created by this version.
The :program:`camqadm` command can be used to delete the
previous exchange::
$ camqadm exchange.delete celeryresults
As an alternative to deleting the old exchange you can
configure a new name for the exchange::
CELERY_RESULT_EXCHANGE = "celeryresults2"
But you have to make sure that both clients and workers
use this new setting, so they are updated to use the same
exchange name.
.. _v250-news:
News
----
* Timezone support.
The local timezone is still used by default, because enabling
time zone support means that workers running versions pre 2.5
will be out of sync with upgraded workers. UTC will be the default
version in 3.0, since it is essentially a backward incompatible change.
To enable UTC you have to set :setting:`CELERY_ENABLE_UTC`::
CELERY_ENABLE_UTC = True
With that enabled dates and times in task messages will be
converted to UTC, and then converted back to the local timezone
when received by a worker.
You can change the local timezone with the :setting:`CELERY_TIMEZONE`
setting. Custom timezones requires the :mod:`pytz` library to
be installed.
* New Message Signing Serializer.
A new serializer has been added that signs and verifies the signature
of messages.
The name of the new serializer is ``auth``, and needs additional
configuration to work (see :ref:`conf-security`).
[ TODO need to add EXAMPLE configuration here, and also to the
configuration docs]
* Optimizations
* The solo pool can now process 15000 tasks/s when using
the `pylibrabbitmq`_ transport. This optimization
also means the worker can handle over double the amount
of tasks tasks/s overall.
* The task error tracebacks are now much shorter.
.. _`pylibrabbitmq`: http://pypi.python.org/pylibrabbitmq/
* New :setting:`CELERY_ANNOTATIONS` setting enables changing of arbitrary
task attributes from the configuration.
The setting can be a dict, or a list of annotation
objects that filter for tasks and return a map of attributes
to change.
For example this is an annotation to change the ``rate_limit`` attribute
for the ``tasks.add`` task:
.. code-block:: python
CELERY_ANNOTATIONS = {"tasks.add": {"rate_limit": "10/s"}}
or change the same for all tasks:
.. code-block:: python
CELERY_ANNOTATIONS = {"*": {"rate_limit": "10/s"}}
You can change methods too, for example the ``on_failure`` handler:
.. code-block:: python
def my_on_failure(self, exc, task_id, args, kwargs, einfo):
print("Oh no! Task failed: %r" % (exc, ))
CELERY_ANNOTATIONS = {"*": {"on_failure": my_on_failure}}
If you need more flexibility then you can also create objects
that select the tasks to annotate, instead of a dict:
.. code-block:: python
class MyAnnotate(object):
def annotate(self, task):
if task.name.startswith("tasks."):
return {"rate_limit": "10/s"}
CELERY_ANNOTATIONS = (MyAnnotate(), {...})
* Adds efficient Chord support for the memcached backend (Issue #533).
Contributed by Dan McGee.
* Adds fallback Chord support for the AMQP backend.
* ``task.retry()`` now reraises the original exception thus keeping
the original stacktrace.
Suggested by ojii.
* The `--uid` argument to daemons now uses ``initgroups()`` to set
groups to all the groups the user is a member of.
Contributed by Łukasz Oleś.
* Redis result backend: Adds support for a ``max_connections`` parameter.
It is now possible to configure the maximum number of
simultaneous connections in the Redis connection pool used for
results.
The default max connections setting can be configured using the
:setting:`CELERY_REDIS_MAX_CONNECTIONS` setting,
or it can be changed individually by ``RedisBackend(max_connections=int)``.
Contributed by Steeve Morin.
* Redis result backend: Adds the ability to wait for results without polling.
Contributed by Steeve Morin.
* MongoDB result backend: Now supports save and restore taskset.
Contributed by Julien Poissonnier.
* There's a new :ref:`guide-security` guide in the documentation.
* The init scripts has been updated, and many bugs fixed.
Contributed by Chris Streeter.
* User (tilde) is now expanded in command line arguments.
* Can now configure CELERYCTL envvar in :file:`/etc/default/celeryd`.
While not necessary for operation, :program:`celeryctl` is used for the
``celeryd status`` command, and the path to :program:`celeryctl` must be
configured for that to work.
The daemonization cookbook contains examples.
Contributed by Jude Nagurney.
* The MongoDB result backend can now use Replica Sets.
Contributed by Ivan Metzlar.
* ``celery.worker.control`` is now a single module.
* ``BaseAsyncResult`` and ``AsyncResult`` is now merged into a single
``AsyncResult``.
* Moved some common threading functionality to new module
:mod:`celery.utils.threads`
.. _version-2.4.5:
2.4.5
=====
:release-date: 2011-12-02 05:00 P.M GMT
:by: Ask Solem
* Periodic task interval schedules were accidentally rounded down,
resulting in some periodic tasks being executed early.
* Logging of humanized times in the celerybeat log is now more detailed.
* New :ref:`brokers` section in the Getting Started part of the Documentation
This replaces the old :ref:`tut-otherqueues` tutorial, and adds
documentation for MongoDB, Beanstalk and CouchDB.
.. _version-2.4.4:
2.4.4
=====
:release-date: 2011-11-25 16:00 P.M GMT
:by: Ask Solem
.. _v244-security-fixes:
Security Fixes
--------------
* [Security: `CELERYSA-0001`_] Daemons would set effective id's rather than
real id's when the :option:`--uid`/:option:`--gid` arguments to
:program:`celeryd-multi`, :program:`celeryd_detach`,
:program:`celerybeat` and :program:`celeryev` were used.
This means privileges weren't properly dropped, and that it would
be possible to regain supervisor privileges later.
.. _`CELERYSA-0001`:
http://github.com/ask/celery/tree/master/docs/sec/CELERYSA-0001.txt
.. _v244-fixes:
Fixes
-----
* Processes pool: Fixed rare deadlock at shutdown (Issue #523).
Fix contributed by Ionel Maries Christian.
* Webhook tasks issued the wrong HTTP POST headers (Issue #515).
The *Content-Type* header has been changed from
``application/json`` ⇒ ``application/x-www-form-urlencoded``,
and adds a proper *Content-Length* header.
Fix contributed by Mitar.
* Daemonization cookbook: Adds a configuration example using Django and
virtualenv together (Issue #505).
Contributed by Juan Ignacio Catalano.
* generic init scripts now automatically creates log and pid file
directories (Issue #545).
Contributed by Chris Streeter.
.. _version-2.4.3:
2.4.3
=====
:release-date: 2011-11-22 18:00 P.M GMT
:by: Ask Solem
* Fixes module import typo in `celeryctl` (Issue #538).
Fix contributed by Chris Streeter.
.. _version-2.4.2:
2.4.2
=====
:release-date: 2011-11-14 12:00 P.M GMT
:by: Ask Solem
* Program module no longer uses relative imports so that it is
possible to do ``python -m celery.bin.name``.
.. _version-2.4.1:
2.4.1
=====
:release-date: 2011-11-07 06:00 P.M GMT
:by: Ask Solem
* celeryctl inspect commands was missing output.
* processes pool: Decrease polling interval for less idle CPU usage.
* processes pool: MaybeEncodingError was not wrapped in ExceptionInfo
(Issue #524).
* celeryd: would silence errors occuring after task consumer started.
* logging: Fixed a bug where unicode in stdout redirected log messages
couldn't be written (Issue #522).
.. _version-2.4.0:
2.4.0
=====
:release-date: 2011-11-04 04:00 P.M GMT
:by: Ask Solem
.. _v240-important:
Important Notes
---------------
* Now supports Python 3.
* Fixed deadlock in worker process handling (Issue #496).
A deadlock could occur after spawning new child processes because
the logging library's mutex was not properly reset after fork.
The symptoms of this bug affecting would be that the worker simply
stops processing tasks, as none of the workers child processes
are functioning. There was a greater chance of this bug occurring
with ``maxtasksperchild`` or a time-limit enabled.
This is a workaround for http://bugs.python.org/issue6721#msg140215.
Be aware that while this fixes the logging library lock,
there could still be other locks initialized in the parent
process, introduced by custom code.
Fix contributed by Harm Verhagen.
* AMQP Result backend: Now expires results by default.
The default expiration value is now taken from the
:setting:`CELERY_TASK_RESULT_EXPIRES` setting.
The old :setting:`CELERY_AMQP_TASK_RESULT_EXPIRES` setting has been
deprecated and will be removed in version 3.0.
Note that this means that the result backend requires RabbitMQ 1.1.0 or
higher, and that you have to disable expiration if you are running
with an older version. You can do so by disabling the
:setting:`CELERY_TASK_RESULT_EXPIRES` setting::
CELERY_TASK_RESULT_EXPIRES = None
* Eventlet: Fixed problem with shutdown (Issue #457).
* Broker transports can be now be specified using URLs
The broker can now be specified as an URL instead.
This URL must have the format::
transport://user:password@hostname:port/virtual_host
for example the default broker is written as::
amqp://guest:guest@localhost:5672//
The scheme is required, so that the host is identified
as an URL and not just a host name.
User, password, port and virtual_host are optional and
defaults to the particular transports default value.
.. note::
Note that the path component (virtual_host) always starts with a
forward-slash. This is necessary to distinguish between the virtual
host ``''`` (empty) and ``'/'``, which are both acceptable virtual
host names.
A virtual host of ``'/'`` becomes:
amqp://guest:guest@localhost:5672//
and a virtual host of ``''`` (empty) becomes::
amqp://guest:guest@localhost:5672/
So the leading slash in the path component is **always required**.
In addition the :setting:`BROKER_URL` setting has been added as an alias
to ``BROKER_HOST``. Any broker setting specified in both the URL and in
the configuration will be ignored, if a setting is not provided in the URL
then the value from the configuration will be used as default.
Also, programs now support the :option:`-b|--broker` option to specify
a broker URL on the command line::
$ celeryd -b redis://localhost
$ celeryctl -b amqp://guest:guest@localhost//e
The environment variable :envvar:`CELERY_BROKER_URL` can also be used to
easily override the default broker used.
* The deprecated :func:`celery.loaders.setup_loader` function has been removed.
* The :setting:`CELERY_TASK_ERROR_WHITELIST` setting has been replaced
by a more flexible approach (Issue #447).
The error mail sending logic is now available as ``Task.ErrorMail``,
with the implementation (for reference) in :mod:`celery.utils.mail`.
The error mail class can be sub-classed to gain complete control
of when error messages are sent, thus removing the need for a separate
white-list setting.
The :setting:`CELERY_TASK_ERROR_WHITELIST` setting has been deprecated,
and will be removed completely in version 3.0.
* Additional Deprecations
The following functions has been deprecated and is scheduled for removal in
version 3.0:
===================================== ===================================
**Old function** **Alternative**
===================================== ===================================
`celery.loaders.current_loader` `celery.current_app.loader`
`celery.loaders.load_settings` `celery.current_app.conf`
`celery.execute.apply` `Task.apply`
`celery.execute.apply_async` `Task.apply_async`
`celery.execute.delay_task` `celery.execute.send_task`
===================================== ===================================
The following settings has been deprecated and is scheduled for removal
in version 3.0:
===================================== ===================================
**Old setting** **Alternative**
===================================== ===================================
`CELERYD_LOG_LEVEL` ``celeryd --loglevel=``
`CELERYD_LOG_FILE` ``celeryd --logfile=``
`CELERYBEAT_LOG_LEVEL` ``celerybeat --loglevel=``
`CELERYBEAT_LOG_FILE` ``celerybeat --logfile=``
`CELERYMON_LOG_LEVEL` ``celerymon --loglevel=``
`CELERYMON_LOG_FILE` ``celerymon --logfile=``
===================================== ===================================
.. _v240-news:
News
----
* No longer depends on :mod:`pyparsing`.
* Now depends on Kombu 1.4.3.
* CELERY_IMPORTS can now be a scalar value (Issue #485).
It is too easy to forget to add the comma after the sole element of a
tuple, and this is something that often affects newcomers.
The docs should probably use a list in examples, as using a tuple
for this doesn't even make sense. Nonetheless, there are many
tutorials out there using a tuple, and this change should be a help
to new users.
Suggested by jsaxon-cars.
* Fixed a memory leak when using the thread pool (Issue #486).
Contributed by Kornelijus Survila.
* The statedb was not saved at exit.
This has now been fixed and it should again remember previously
revoked tasks when a ``--statedb`` is enabled.
* Adds :setting:`EMAIL_USE_TLS` to enable secure SMTP connections
(Issue #418).
Contributed by Stefan Kjartansson.
* Now handles missing fields in task messages as documented in the message
format documentation.
* Missing required field throws :exc:`InvalidTaskError`
* Missing args/kwargs is assumed empty.
Contributed by Chris Chamberlin.
* Fixed race condition in celery.events.state (celerymon/celeryev)
where task info would be removed while iterating over it (Issue #501).
* The Cache, Cassandra, MongoDB, Redis and Tyrant backends now respects
the :setting:`CELERY_RESULT_SERIALIZER` setting (Issue #435).
This means that only the database (django/sqlalchemy) backends
currently does not support using custom serializers.
Contributed by Steeve Morin
* Logging calls no longer manually formats messages, but delegates
that to the logging system, so tools like Sentry can easier
work with the messages (Issue #445).
Contributed by Chris Adams.
* ``celeryd_multi`` now supports a ``stop_verify`` command to wait for
processes to shutdown.
* Cache backend did not work if the cache key was unicode (Issue #504).
Fix contributed by Neil Chintomby.
* New setting :setting:`CELERY_RESULT_DB_SHORT_LIVED_SESSIONS` added,
which if enabled will disable the caching of SQLAlchemy sessions
(Issue #449).
Contributed by Leo Dirac.
* All result backends now implements ``__reduce__`` so that they can
be pickled (Issue #441).
Fix contributed by Remy Noel
* celeryd-multi did not work on Windows (Issue #472).
* New-style ``CELERY_REDIS_*`` settings now takes precedence over
the old ``REDIS_*`` configuration keys (Issue #508).
Fix contributed by Joshua Ginsberg
* Generic celerybeat init script no longer sets `bash -e` (Issue #510).
Fix contributed by Roger Hu.
* Documented that Chords do not work well with redis-server versions
before 2.2.
Contributed by Dan McGee.
* The :setting:`CELERYBEAT_MAX_LOOP_INTERVAL` setting was not respected.
* ``inspect.registered_tasks`` renamed to ``inspect.registered`` for naming
consistency.
The previous name is still available as an alias.
Contributed by Mher Movsisyan
* Worker logged the string representation of args and kwargs
without safe guards (Issue #480).
* RHEL init script: Changed celeryd startup priority.
The default start / stop priorities for MySQL on RHEL are
# chkconfig: - 64 36
Therefore, if Celery is using a database as a broker / message store, it
should be started after the database is up and running, otherwise errors
will ensue. This commit changes the priority in the init script to
# chkconfig: - 85 15
which are the default recommended settings for 3-rd party applications
and assure that Celery will be started after the database service & shut
down before it terminates.
Contributed by Yury V. Zaytsev.
* KeyValueStoreBackend.get_many did not respect the ``timeout`` argument
(Issue #512).
* celerybeat/celeryev's --workdir option did not chdir before after
configuration was attempted (Issue #506).
* After deprecating 2.4 support we can now name modules correctly, since we
can take use of absolute imports.
Therefore the following internal modules have been renamed:
celery.concurrency.evlet -> celery.concurrency.eventlet
celery.concurrency.evg -> celery.concurrency.gevent
* AUTHORS file is now sorted alphabetically.
Also, as you may have noticed the contributors of new features/fixes are
now mentioned in the Changelog.
.. _version-2.3.4:
2.3.4
=====
:release-date: 2011-11-25 16:00 P.M GMT
:by: Ask Solem
.. _v234-security-fixes:
Security Fixes
--------------
* [Security: `CELERYSA-0001`_] Daemons would set effective id's rather than
real id's when the :option:`--uid`/:option:`--gid` arguments to
:program:`celeryd-multi`, :program:`celeryd_detach`,
:program:`celerybeat` and :program:`celeryev` were used.
This means privileges weren't properly dropped, and that it would
be possible to regain supervisor privileges later.
.. _`CELERYSA-0001`:
http://github.com/ask/celery/tree/master/docs/sec/CELERYSA-0001.txt
Fixes
-----
* Backported fix for #455 from 2.4 to 2.3.
* Statedb was not saved at shutdown.
* Fixes worker sometimes hanging when hard time limit exceeded.
.. _version-2.3.3:
2.3.3
=====
:release-date: 2011-16-09 05:00 P.M BST
:by: Mher Movsisyan
* Monkey patching :attr:`sys.stdout` could result in the worker
crashing if the replacing object did not define :meth:`isatty`
(Issue #477).
* ``CELERYD`` option in :file:`/etc/default/celeryd` should not
be used with generic init scripts.
.. _version-2.3.2:
2.3.2
=====
:release-date: 2011-10-07 05:00 P.M BST
.. _v232-news:
News
----
* Improved Contributing guide.
If you'd like to contribute to Celery you should read this
guide: http://ask.github.com/celery/contributing.html
We are looking for contributors at all skill levels, so don't
hesitate!
* Now depends on Kombu 1.3.1
* ``Task.request`` now contains the current worker host name (Issue #460).
Available as ``task.request.hostname``.
* It is now easier for app subclasses to extend how they are pickled.
(see :class:`celery.app.AppPickler`).
.. _v232-fixes:
Fixes
-----
* `purge/discard_all` was not working correctly (Issue #455).
* The coloring of log messages didn't handle non-ASCII data well
(Issue #427).
* [Windows] the multiprocessing pool tried to import ``os.kill``
even though this is not available there (Issue #450).
* Fixes case where the worker could become unresponsive because of tasks
exceeding the hard time limit.
* The ``task-sent`` event was missing from the event reference.
* ``ResultSet.iterate`` now returns results as they finish (Issue #459).
This was not the case previously, even though the documentation
states this was the expected behavior.
* Retries will no longer be performed when tasks are called directly
(using ``__call__``).
Instead the exception passed to ``retry`` will be re-raised.
* Eventlet no longer crashes if autoscale is enabled.
growing and shrinking eventlet pools is still not supported.
* py24 target removed from :file:`tox.ini`.
.. _version-2.3.1:
2.3.1
=====
:release-date: 2011-08-07 08:00 P.M BST
Fixes
-----
* The :setting:`CELERY_AMQP_TASK_RESULT_EXPIRES` setting did not work,
resulting in an AMQP related error about not being able to serialize
floats while trying to publish task states (Issue #446).
.. _version-2.3.0:
2.3.0
=====
:release-date: 2011-08-05 12:00 P.M BST
:tested: cPython: 2.5, 2.6, 2.7; PyPy: 1.5; Jython: 2.5.2
.. _v230-important:
Important Notes
---------------
* Now requires Kombu 1.2.1
* Results are now disabled by default.
The AMQP backend was not a good default because often the users were
not consuming the results, resulting in thousands of queues.
While the queues can be configured to expire if left unused, it was not
possible to enable this by default because this was only available in
recent RabbitMQ versions (2.1.1+)
With this change enabling a result backend will be a conscious choice,
which will hopefully lead the user to read the documentation and be aware
of any common pitfalls with the particular backend.
The default backend is now a dummy backend
(:class:`celery.backends.base.DisabledBackend`). Saving state is simply an
noop operation, and AsyncResult.wait(), .result, .state, etc. will raise
a :exc:`NotImplementedError` telling the user to configure the result backend.
For help choosing a backend please see :ref:`task-result-backends`.
If you depend on the previous default which was the AMQP backend, then
you have to set this explicitly before upgrading::
CELERY_RESULT_BACKEND = "amqp"
.. note::
For django-celery users the default backend is still ``database``,
and results are not disabled by default.
* The Debian init scripts have been deprecated in favor of the generic-init.d
init scripts.
In addition generic init scripts for celerybeat and celeryev has been
added.
.. _v230-news:
News
----
* Automatic connection pool support.
The pool is used by everything that requires a broker connection. For
example applying tasks, sending broadcast commands, retrieving results
with the AMQP result backend, and so on.
The pool is disabled by default, but you can enable it by configuring the
:setting:`BROKER_POOL_LIMIT` setting::
BROKER_POOL_LIMIT = 10
A limit of 10 means a maximum of 10 simultaneous connections can co-exist.
Only a single connection will ever be used in a single-thread
environment, but in a concurrent environment (threads, greenlets, etc., but
not processes) when the limit has been exceeded, any try to acquire a
connection will block the thread and wait for a connection to be released.
This is something to take into consideration when choosing a limit.
A limit of :const:`None` or 0 means no limit, and connections will be
established and closed every time.
* Introducing Chords (taskset callbacks).
A chord is a task that only executes after all of the tasks in a taskset
has finished executing. It's a fancy term for "taskset callbacks"
adopted from
`Cω <http://research.microsoft.com/en-us/um/cambridge/projects/comega/>`_).
It works with all result backends, but the best implementation is
currently provided by the Redis result backend.
Here's an example chord::
>>> chord(add.subtask((i, i))
... for i in xrange(100))(tsum.subtask()).get()
9900
Please read the :ref:`Chords section in the user guide <chords>`, if you
want to know more.
* Time limits can now be set for individual tasks.
To set the soft and hard time limits for a task use the ``time_limit``
and ``soft_time_limit`` attributes:
.. code-block:: python
import time
@task(time_limit=60, soft_time_limit=30)
def sleeptask(seconds):
time.sleep(seconds)
If the attributes are not set, then the workers default time limits
will be used.
New in this version you can also change the time limits for a task
at runtime using the :func:`time_limit` remote control command::
>>> from celery.task import control
>>> control.time_limit("tasks.sleeptask",
... soft=60, hard=120, reply=True)
[{'worker1.example.com': {'ok': 'time limits set successfully'}}]
Only tasks that starts executing after the time limit change will be affected.
.. note::
Soft time limits will still not work on Windows or other platforms
that do not have the ``SIGUSR1`` signal.
* Redis backend configuration directive names changed to include the
``CELERY_`` prefix.
===================================== ===================================
**Old setting name** **Replace with**
===================================== ===================================
`REDIS_HOST` `CELERY_REDIS_HOST`
`REDIS_PORT` `CELERY_REDIS_PORT`
`REDIS_DB` `CELERY_REDIS_DB`
`REDIS_PASSWORD` `CELERY_REDIS_PASSWORD`
===================================== ===================================
The old names are still supported but pending deprecation.
* PyPy: The default pool implementation used is now multiprocessing
if running on PyPy 1.5.
* celeryd-multi: now supports "pass through" options.
Pass through options makes it easier to use celery without a
configuration file, or just add last-minute options on the command
line.
Example use:
$ celeryd-multi start 4 -c 2 -- broker.host=amqp.example.com \
broker.vhost=/ \
celery.disable_rate_limits=yes
* celerybeat: Now retries establishing the connection (Issue #419).
* celeryctl: New ``list bindings`` command.
Lists the current or all available bindings, depending on the
broker transport used.
* Heartbeat is now sent every 30 seconds (previously every 2 minutes).
* ``ResultSet.join_native()`` and ``iter_native()`` is now supported by
the Redis and Cache result backends.
This is an optimized version of ``join()`` using the underlying
backends ability to fetch multiple results at once.
* Can now use SSL when sending error e-mails by enabling the
:setting:`EMAIL_USE_SSL` setting.
* ``events.default_dispatcher()``: Context manager to easily obtain
an event dispatcher instance using the connection pool.
* Import errors in the configuration module will not be silenced anymore.
* ResultSet.iterate: Now supports the ``timeout``, ``propagate`` and
``interval`` arguments.
* ``with_default_connection`` -> ``with default_connection``
* TaskPool.apply_async: Keyword arguments ``callbacks`` and ``errbacks``
has been renamed to ``callback`` and ``errback`` and take a single scalar
value instead of a list.
* No longer propagates errors occurring during process cleanup (Issue #365)
* Added ``TaskSetResult.delete()``, which will delete a previously
saved taskset result.
* Celerybeat now syncs every 3 minutes instead of only at
shutdown (Issue #382).
* Monitors now properly handles unknown events, so user-defined events
are displayed.
* Terminating a task on Windows now also terminates all of the tasks child
processes (Issue #384).
* celeryd: ``-I|--include`` option now always searches the current directory
to import the specified modules.
* Cassandra backend: Now expires results by using TTLs.
* Functional test suite in ``funtests`` is now actually working properly, and
passing tests.
.. _v230-fixes:
Fixes
-----
* celeryev was trying to create the pidfile twice.
* celery.contrib.batches: Fixed problem where tasks failed
silently (Issue #393).
* Fixed an issue where logging objects would give "<Unrepresentable",
even though the objects were.
* ``CELERY_TASK_ERROR_WHITE_LIST`` is now properly initialized
in all loaders.
* celeryd_detach now passes through command-line configuration.
* Remote control command ``add_consumer`` now does nothing if the
queue is already being consumed from.
.. _version-2.2.8:
2.2.8
=====
:release-date: 2011-11-25 16:00 P.M GMT
:by: Ask Solem
.. _v228-security-fixes:
Security Fixes
--------------
* [Security: `CELERYSA-0001`_] Daemons would set effective id's rather than
real id's when the :option:`--uid`/:option:`--gid` arguments to
:program:`celeryd-multi`, :program:`celeryd_detach`,
:program:`celerybeat` and :program:`celeryev` were used.
This means privileges weren't properly dropped, and that it would
be possible to regain supervisor privileges later.
.. _`CELERYSA-0001`:
http://github.com/ask/celery/tree/master/docs/sec/CELERYSA-0001.txt
.. _version-2.2.7:
2.2.7
=====
:release-date: 2011-06-13 16:00 P.M BST
* New signals: :signal:`after_setup_logger` and
:signal:`after_setup_task_logger`
These signals can be used to augment logging configuration
after Celery has set up logging.
* Redis result backend now works with Redis 2.4.4.
* celeryd_multi: The :option:`--gid` option now works correctly.
* celeryd: Retry wrongfully used the repr of the traceback instead
of the string representation.
* App.config_from_object: Now loads module, not attribute of module.