mirror of https://github.com/celery/kombu.git
791 lines
22 KiB
Plaintext
791 lines
22 KiB
Plaintext
================
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Change history
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================
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.. _version-1.5.1:
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1.5.1
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=====
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:release-date: 2011-11-30 01:00 P.M GMT
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:by: Ask Solem
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* Fixes issue with ``kombu.compat`` introduced in 1.5.0 (Issue #83).
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* Adds the ability to disable content_types in the serializer registry.
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Any message with a content type that is disabled will be refused.
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One example would be to disable the Pickle serializer:
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>>> from kombu.serialization import registry
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# by name
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>>> registry.disable("pickle")
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# or by mime-type.
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>>> registry.disable("application/x-python-serialize")
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.. _version-1.5.0:
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1.5.0
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=====
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:release-date: 2011-11-27 06:00 P.M GMT
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:by: Ask Solem
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* kombu.pools: Fixed a bug resulting in resources not being properly released.
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This was caused by the use of ``__hash__`` to distinguish them.
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* Virtual transports: Dead-letter queue is now disabled by default.
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The dead-letter queue was enabled by default to help application
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authors, but now that Kombu is stable it should be removed.
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There are after all many cases where messages should just be dropped
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when there are no queues to buffer them, and keeping them without
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supporting automatic cleanup is rather considered a resource leak
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than a feature.
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If wanted the dead-letter queue can still be enabled, by using
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the ``deadletter_queue`` transport option::
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>>> x = BrokerConnection("redis://",
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... transport_options={"deadletter_queue": "ae.undeliver"})
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In addition, an :class:`UndeliverableWarning` is now emitted when
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the dead-letter queue is enabled and a message ends up there.
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Contributed by Ionel Maries Cristian.
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* MongoDB transport now supports Replicasets (Issue #81).
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Contributed by Ivan Metzlar.
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* The ``Connection.ensure`` methods now accepts a ``max_retries`` value
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of 0.
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A value of 0 now means *do not retry*, which is distinct from :const:`None`
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which means *retry indefinitely*.
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Contributed by Dan McGee.
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* SQS Transport: Now has a lowercase ``sqs`` alias, so that it can be
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used with broker URLs (Issue #82).
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Fix contributed by Hong Minhee
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* SQS Transport: Fixes KeyError on message acknowledgements (Issue #73).
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The SQS transport now uses UUID's for delivery tags, rather than
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a counter.
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Fix contributed by Brian Bernstein.
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* SQS Transport: Unicode related fixes (Issue #82).
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Fix contributed by Hong Minhee.
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* Redis version check could crash because of improper handling of types
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(Issue #63).
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* Fixed error with `Resource.force_close_all` when resources
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were not yet properly initialized (Issue #78).
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.. _version-1.4.3:
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1.4.3
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=====
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:release-date: 2011-10-27 10:00 P.M BST
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* Fixes bug in ProducerPool where too many resources would be acquired.
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.. _version-1.4.2:
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1.4.2
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=====
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:release-date: 2011-10-26 05:00 P.M BST
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:by: Ask Solem
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* Eventio: Polling should ignore `errno.EINTR`
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* SQS: str.encode did only start accepting kwargs after Py2.7.
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* simple_task_queue example didn't run correctly (Issue #72).
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Fix contributed by Stefan Eletzhofer.
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* Empty messages would not raise an exception not able to be handled
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by `on_decode_error` (Issue #72)
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Fix contributed by Christophe Chauvet.
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* CouchDB: Properly authenticate if user/password set (Issue #70)
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Fix contributed by Rafael Duran Castaneda
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* BrokerConnection.Consumer had the wrong signature.
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Fix contributed by Pavel Skvazh
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.. _version-1.4.1:
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1.4.1
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=====
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:release-date: 2011-09-26 04:00 P.M BST
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:by: Ask Solem
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* 1.4.0 broke the producer pool, resulting in new connections being
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established for every acquire.
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.. _version-1.4.0:
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1.4.0
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=====
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:release-date: 2011-09-22 05:00 P.M BST
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:by: Ask Solem
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* Adds module :mod:`kombu.mixins`.
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This module contains a :class:`~kombu.mixins.ConsumerMixin` class
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that can be used to easily implement a message consumer
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thread that consumes messages from one or more
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:class:`kombu.messaging.Consumer` instances.
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* New example: :ref:`task-queue-example`
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Using the ``ConsumerMixin``, default channels and
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the global connection pool to demonstrate new Kombu features.
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* MongoDB transport did not work with MongoDB >= 2.0 (Issue #66)
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Fix contributed by James Turk.
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* Redis-py version check did not account for beta identifiers
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in version string.
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Fix contributed by David Ziegler.
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* Producer and Consumer now accepts a connection instance as the
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first argument.
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The connections default channel will then be used.
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In addition shortcut methods has been added to BrokerConnection::
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>>> connection.Producer(exchange)
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>>> connection.Consumer(queues=..., callbacks=...)
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* BrokerConnection has aquired a ``connected`` attribute that
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can be used to check if the connection instance has established
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a connection.
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* ``ConnectionPool.acquire_channel`` now returns the connections
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default channel rather than establising a new channel that
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must be manually handled.
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* Added ``kombu.common.maybe_declare``
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``maybe_declare(entity)`` declares an entity if it has
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not previously been declared in the same process.
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* :func:`kombu.compat.entry_to_queue` has been moved to :mod:`kombu.common`
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* New module :mod:`kombu.clocks` now contains an implementation
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of Lamports logical clock.
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.. _version-1.3.5:
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1.3.5
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=====
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:release-date: 2011-09-16 06:00 P.M BST
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:by: Ask Solem
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* Python 3: AMQP_PROTOCOL_HEADER must be bytes, not str.
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.. _version-1.3.4:
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1.3.4
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=====
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:release-date: 2011-09-16 06:00 P.M BST
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:by: Ask Solem
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* Fixes syntax error in pools.reset
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.. _version-1.3.3:
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1.3.3
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=====
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:release-date: 2011-09-15 02:00 P.M BST
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:by: Ask Solem
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* pools.reset did not support after forker arguments.
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.. _version-1.3.2:
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1.3.2
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=====
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:release-date: 2011-09-10 01:00 P.M BST
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:by: Mher Movsisyan
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* Broke Python 2.5 compatibility by importing ``parse_qsl`` from ``urlparse``
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* Connection.default_channel is now closed when connection is revived
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after connection failures.
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* Pika: Channel now supports the ``connection.client`` attribute
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as required by the simple interface.
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* pools.set_limit now raises an exception if the limit is lower
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than the previous limit.
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* pools.set_limit no longer resets the pools.
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.. _version-1.3.1:
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1.3.1
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=====
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:release-date: 2011-10-07 03:00 P.M BST
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* Last release broke after fork for pool reinitialization.
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* Producer/Consumer now has a ``connection`` attribute,
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giving access to the :class:`BrokerConnection` of the
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instance.
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* Pika: Channels now have access to the underlying
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:class:`BrokerConnection` instance using ``channel.connection.client``.
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This was previously required by the ``Simple`` classes and is now
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also required by :class:`Consumer` and :class:`Producer`.
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* Connection.default_channel is now closed at object revival.
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* Adds kombu.clocks.LamportClock.
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* compat.entry_to_queue has been moved to new module :mod:`kombu.common`.
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.. _version-1.3.0:
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1.3.0
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=====
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:release-date: 2011-10-05 01:00 P.M BST
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* Broker connection info can be now be specified using URLs
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The broker hostname can now be given as an URL instead, of the format::
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transport://user:password@hostname:port/virtual_host
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for example the default broker is expressed as::
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>>> BrokerConnection("amqp://guest:guest@localhost:5672//")
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Transport defaults to amqp, and is not required.
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user, password, port and virtual_host is also not mandatory and
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will default to the corresponding transports default.
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.. note::
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Note that the path component (virtual_host) always starts with a
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forward-slash. This is necessary to distinguish between the virtual
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host '' (empty) and '/', which are both acceptable virtual host names.
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A virtual host of '/' becomes:
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amqp://guest:guest@localhost:5672//
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and a virtual host of '' (empty) becomes::
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amqp://guest:guest@localhost:5672/
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So the leading slash in the path component is **always required**.
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* Now comes with default global connection and producer pools.
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The acquire a connection using the connection parameters
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from a :class:`BrokerConnection`::
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>>> from kombu import BrokerConnection, connections
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>>> connection = BrokerConnection("amqp://guest:guest@localhost//")
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>>> with connections[connection].acquire(block=True):
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... # do something with connection
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To acquire a producer using the connection parameters
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from a :class:`BrokerConnection`::
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>>> from kombu import BrokerConnection, producers
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>>> connection = BrokerConnection("amqp://guest:guest@localhost//")
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>>> with producers[connection].acquire(block=True):
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... producer.publish({"hello": "world"}, exchange="hello")
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Acquiring a producer will in turn also acquire a connection
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from the associated pool in ``connections``, so you the number
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of producers is bound the same limit as number of connections.
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The default limit of 100 connections per connection instance
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can be changed by doing::
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>>> from kombu import pools
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>>> pools.set_limit(10)
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The pool can also be forcefully closed by doing::
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>>> from kombu import pools
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>>> pool.reset()
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* SQS Transport: Persistence using SimpleDB is now disabled by default,
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after reports of unstable SimpleDB connections leading to errors.
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* :class:`Producer` can now be used as a context manager.
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* ``Producer.__exit__`` now properly calls ``release`` instead of close.
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The previous behavior would lead to a memory leak when using
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the :class:`kombu.pools.ProducerPool`
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* Now silences all exceptions from `import ctypes` to match behaviour
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of the standard Python uuid module, and avoid passing on MemoryError
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exceptions on SELinux-enabled systems (Issue #52 + Issue #53)
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* ``amqp`` is now an alias to the ``amqplib`` transport.
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* ``kombu.syn.detect_environment`` now returns 'default', 'eventlet', or
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'gevent' depending on what monkey patches have been installed.
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* Serialization registry has new attribute ``type_to_name`` so it is
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possible to lookup serializater name by content type.
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* Exchange argument to ``Producer.publish`` can now be an :class:`Exchange`
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instance.
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* ``compat.Publisher`` now supports the ``channel`` keyword argument.
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* Acking a message on some transports could lead to :exc:`KeyError` being
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raised (Issue #57).
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* Connection pool: Connections are no long instantiated when the pool is
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created, but instantiated as needed instead.
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* Tests now pass on PyPy.
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* ``Connection.as_uri`` now includes the password if the keyword argument
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``include_password`` is set.
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* Virtual transports now comes with a default ``default_connection_params``
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attribute.
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.. _version-1.2.1:
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1.2.1
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=====
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:release-date: 2011-07-29 12:52 P.M BST
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* Now depends on amqplib >= 1.0.0.
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* Redis: Now automatically deletes auto_delete queues at ``basic_cancel``.
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* ``serialization.unregister`` added so it is possible to remove unwanted
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seralizers.
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* Fixes MemoryError while importing ctypes on SELinux (Issue #52).
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* ``BrokerConnection.autoretry`` is a version of ``ensure`` that works
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with arbitrary functions (i.e. it does not need an associated object
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that implements the ``revive`` method.
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Example usage:
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.. code-block:: python
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channel = connection.channel()
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try:
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ret, channel = connection.autoretry(send_messages, channel=channel)
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finally:
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channel.close()
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* ``ConnectionPool.acquire`` no longer force establishes the connection.
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The connection will be established as needed.
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* ``BrokerConnection.ensure`` now supports an ``on_revive`` callback
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that is applied whenever the connection is re-established.
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* ``Consumer.consuming_from(queue)`` returns True if the Consumer is
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consuming from ``queue``.
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* ``Consumer.cancel_by_queue`` did not remove the queue from ``queues``.
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* ``compat.ConsumerSet.add_queue_from_dict`` now automatically declared
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the queue if ``auto_declare`` set.
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.. _version-1.2.0:
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1.2.0
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=====
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:release-date: 2011-07-15 12:00 P.M BST
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* Virtual: Fixes cyclic reference in Channel.close (Issue #49).
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* Producer.publish: Can now set additional properties using keyword
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arguments (Issue #48).
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* Adds Queue.no_ack option to control the no_ack option for individual queues.
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* Recent versions broke pylibrabbitmq support.
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* SimpleQueue and SimpleBuffer can now be used as contexts.
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* Test requirements specifies PyYAML==3.09 as 3.10 dropped Python 2.4 support
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* Now properly reports default values in Connection.info/.as_uri
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.. _version-1.1.6:
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1.1.6
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=====
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:release-date: 2011-06-13 04:00 P.M BST
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* Redis: Fixes issue introduced in 1.1.4, where a redis connection
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failure could leave consumer hanging forever.
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* SQS: Now supports fanout messaging by using SimpleDB to store routing
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tables.
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This can be disabled by setting the `supports_fanout` transport option:
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>>> BrokerConnection(transport="SQS",
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... transport_options={"supports_fanout": False})
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* SQS: Now properly deletes a message when a message is acked.
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* SQS: Can now set the Amazon AWS region, by using the ``region``
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transport option.
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* amqplib: Now uses `localhost` as default hostname instead of raising an
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error.
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.. _version-1.1.5:
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1.1.5
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=====
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:release-date: 2011-06-07 06:00 P.M BST
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* Fixes compatibility with redis-py 2.4.4.
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.. _version-1.1.4:
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1.1.4
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=====
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:release-date: 2011-06-07 04:00 P.M BST
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* Redis transport: Now requires redis-py version 2.4.4 or later.
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* New Amazon SQS transport added.
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Usage:
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>>> conn = BrokerConnection(transport="SQS",
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... userid=aws_access_key_id,
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... password=aws_secret_access_key)
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The environment variables :envvar:`AWS_ACCESS_KEY_ID` and
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:envvar:`AWS_SECRET_ACCESS_KEY` are also supported.
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* librabbitmq transport: Fixes default credentials support.
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* amqplib transport: Now supports `login_method` for SSL auth.
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:class:`BrokerConnection` now supports the `login_method`
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keyword argument.
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Default `login_method` is ``AMQPLAIN``.
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.. _version-1.1.3:
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1.1.3
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=====
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:release-date: 2011-04-21 16:00 P.M CEST
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* Redis: Consuming from multiple connections now works with Eventlet.
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* Redis: Can now perform channel operations while the channel is in
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BRPOP/LISTEN mode (Issue #35).
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Also the async BRPOP now times out after 1 second, this means that
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cancelling consuming from a queue/starting consuming from additional queues
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has a latency of up to one second (BRPOP does not support subsecond
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timeouts).
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* Virtual: Allow channel objects to be closed multiple times without error.
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* amqplib: ``AttributeError`` has been added to the list of known
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connection related errors (:attr:`Connection.connection_errors`).
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* amqplib: Now converts :exc:`SSLError` timeout errors to
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:exc:`socket.timeout` (http://bugs.python.org/issue10272)
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* Ensures cyclic references are destroyed when the connection is closed.
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.. _version-1.1.2:
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1.1.2
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=====
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:release-date: 2011-04-06 16:00 P.M CEST
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* Redis: Fixes serious issue where messages could be lost.
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The issue could happen if the message exceeded a certain number
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of kilobytes in size.
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It is recommended that all users of the Redis transport should
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upgrade to this version, even if not currently experiencing any
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issues.
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.. _version-1.1.1:
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1.1.1
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=====
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:release-date: 2011-04-05 15:51 P.M CEST
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* 1.1.0 started using ``Queue.LifoQueue`` which is only available
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in Python 2.6+ (Issue #33). We now ship with our own LifoQueue.
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.. _version-1.1.0:
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1.1.0
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=====
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:release-date: 2011-04-05 01:05 P.M CEST
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.. _v110-important:
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Important Notes
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---------------
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* Virtual transports: Message body is now base64 encoded by default
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(Issue #27).
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This should solve problems sending binary data with virtual
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transports.
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Message compatibility is handled by adding a ``body_encoding``
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property, so messages sent by older versions is compatible
|
|
with this release. However -- If you are accessing the messages
|
|
directly not using Kombu, then you have to respect
|
|
the ``body_encoding`` property.
|
|
|
|
If you need to disable base64 encoding then you can do so
|
|
via the transport options::
|
|
|
|
BrokerConnection(transport="...",
|
|
transport_options={"body_encoding": None})
|
|
|
|
**For transport authors**:
|
|
|
|
You don't have to change anything in your custom transports,
|
|
as this is handled automatically by the base class.
|
|
|
|
If you want to use a different encoder you can do so by adding
|
|
a key to ``Channel.codecs``. Default encoding is specified
|
|
by the ``Channel.body_encoding`` attribute.
|
|
|
|
A new codec must provide two methods: ``encode(data)`` and
|
|
``decode(data)``.
|
|
|
|
* ConnectionPool/ChannelPool/Resource: Setting ``limit=None`` (or 0)
|
|
now disables pool semantics, and will establish and close
|
|
the resource whenever acquired or released.
|
|
|
|
* ConnectionPool/ChannelPool/Resource: Is now using a LIFO queue
|
|
instead of the previous FIFO behavior.
|
|
|
|
This means that the last resource released will be the one
|
|
acquired next. I.e. if only a single thread is using the pool
|
|
this means only a single connection will ever be used.
|
|
|
|
* BrokerConnection: Cloned connections did not inherit transport_options
|
|
(``__copy__``).
|
|
|
|
* contrib/requirements is now located in the top directory
|
|
of the distribution.
|
|
|
|
* MongoDB: Now supports authentication using the ``userid`` and ``password``
|
|
arguments to :class:`BrokerConnection` (Issue #30).
|
|
|
|
* BrokerConnection: Default autentication credentials are now delegated to
|
|
the individual transports.
|
|
|
|
This means that the ``userid`` and ``password`` arguments to
|
|
BrokerConnection is no longer *guest/guest* by default.
|
|
|
|
The amqplib and pika transports will still have the default
|
|
credentials.
|
|
|
|
* :meth:`Consumer.__exit__` did not have the correct signature (Issue #32).
|
|
|
|
* Channel objects now have a ``channel_id`` attribute.
|
|
|
|
* MongoDB: Version sniffing broke with development versions of
|
|
mongod (Issue #29).
|
|
|
|
* New environment variable :envvar:`KOMBU_LOG_CONNECTION` will now emit debug
|
|
log messages for connection related actions.
|
|
|
|
:envvar:`KOMBU_LOG_DEBUG` will also enable :envvar:`KOMBU_LOG_CONNECTION`.
|
|
|
|
.. _version-1.0.7:
|
|
|
|
1.0.7
|
|
=====
|
|
:release-date: 2011-03-28 05:45 P.M CEST
|
|
|
|
* Now depends on anyjson 0.3.1
|
|
|
|
cjson is no longer a recommended json implementation, and anyjson
|
|
will now emit a deprecation warning if used.
|
|
|
|
* Please note that the Pika backend only works with version 0.5.2.
|
|
|
|
The latest version (0.9.x) drastically changed API, and it is not
|
|
compatible yet.
|
|
|
|
* on_decode_error is now called for exceptions in message_to_python
|
|
(Issue #24).
|
|
|
|
* Redis: did not respect QoS settings.
|
|
|
|
* Redis: Creating a connection now ensures the connection is established.
|
|
|
|
This means ``BrokerConnection.ensure_connection`` works properly with
|
|
Redis.
|
|
|
|
* consumer_tag argument to ``Queue.consume`` can't be :const:`None`
|
|
(Issue #21).
|
|
|
|
A None value is now automatically converted to empty string.
|
|
An empty string will make the server generate a unique tag.
|
|
|
|
* BrokerConnection now supports a ``transport_options`` argument.
|
|
|
|
This can be used to pass additional arguments to transports.
|
|
|
|
* Pika: ``drain_events`` raised :exc:`socket.timeout` even if no timeout
|
|
set (Issue #8).
|
|
|
|
.. version-1.0.6:
|
|
|
|
1.0.6
|
|
=====
|
|
:release-date: 2011-03-22 04:00 P.M CET
|
|
|
|
* The ``delivery_mode`` aliases (persistent/transient) were not automatically
|
|
converted to integer, and would cause a crash if using the amqplib
|
|
transport.
|
|
|
|
* Redis: The redis-py :exc:`InvalidData` exception suddenly changed name to
|
|
:exc:`DataError`.
|
|
|
|
* The :envvar:`KOMBU_LOG_DEBUG` environment variable can now be set to log all
|
|
channel method calls.
|
|
|
|
Support for the following environment variables have been added:
|
|
|
|
* :envvar:`KOMBU_LOG_CHANNEL` will wrap channels in an object that
|
|
logs every method call.
|
|
|
|
* :envvar:`KOMBU_LOG_DEBUG` both enables channel logging and configures the
|
|
root logger to emit messages to standard error.
|
|
|
|
**Example Usage**::
|
|
|
|
$ KOMBU_LOG_DEBUG=1 python
|
|
>>> from kombu import BrokerConnection
|
|
>>> conn = BrokerConnection()
|
|
>>> channel = conn.channel()
|
|
Start from server, version: 8.0, properties:
|
|
{u'product': 'RabbitMQ',.............. }
|
|
Open OK! known_hosts []
|
|
using channel_id: 1
|
|
Channel open
|
|
>>> channel.queue_declare("myq", passive=True)
|
|
[Kombu channel:1] queue_declare('myq', passive=True)
|
|
(u'myq', 0, 1)
|
|
|
|
.. _version-1.0.5:
|
|
|
|
1.0.5
|
|
=====
|
|
:release-date: 2011-03-17 04:00 P.M CET
|
|
|
|
* Fixed memory leak when creating virtual channels. All virtual transports
|
|
affected (redis, mongodb, memory, django, sqlalchemy, couchdb, beanstalk).
|
|
|
|
* Virtual Transports: Fixed potential race condition when acking messages.
|
|
|
|
If you have been affected by this, the error would show itself as an
|
|
exception raised by the OrderedDict implementation. (``object no longer
|
|
exists``).
|
|
|
|
* MongoDB transport requires the ``findandmodify`` command only available in
|
|
MongoDB 1.3+, so now raises an exception if connected to an incompatible
|
|
server version.
|
|
|
|
* Virtual Transports: ``basic.cancel`` should not try to remove unknown
|
|
consumer tag.
|
|
|
|
.. _version-1.0.4:
|
|
|
|
1.0.4
|
|
=====
|
|
:release-date: 2011-02-28 04:00 P.M CET
|
|
|
|
* Added Transport.polling_interval
|
|
|
|
Used by django-kombu to increase the time to sleep between SELECTs when
|
|
there are no messages in the queue.
|
|
|
|
Users of django-kombu should upgrade to django-kombu v0.9.2.
|
|
|
|
.. _version-1.0.3:
|
|
|
|
1.0.3
|
|
=====
|
|
:release-date: 2011-02-12 04:00 P.M CET
|
|
|
|
* ConnectionPool: Re-connect if amqplib connection closed
|
|
|
|
* Adds ``Queue.as_dict`` + ``Exchange.as_dict``.
|
|
|
|
* Copyright headers updated to include 2011.
|
|
|
|
.. _version-1.0.2:
|
|
|
|
1.0.2
|
|
=====
|
|
:release-date: 2011-01-31 10:45 P.M CET
|
|
|
|
* amqplib: Message properties were not set properly.
|
|
* Ghettoq backend names are now automatically translated to the new names.
|
|
|
|
.. _version-1.0.1:
|
|
|
|
1.0.1
|
|
=====
|
|
:release-date: 2011-01-28 12:00 P.M CET
|
|
|
|
* Redis: Now works with Linux (epoll)
|
|
|
|
.. _version-1.0.0:
|
|
|
|
1.0.0
|
|
=====
|
|
:release-date: 2011-01-27 12:00 P.M CET
|
|
|
|
* Initial release
|
|
|
|
.. _version-0.1.0:
|
|
|
|
0.1.0
|
|
=====
|
|
:release-date: 2010-07-22 04:20 P.M CET
|
|
|
|
* Initial fork of carrot
|