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Code Issues 32 Releases Wiki Activity

Fixed #20215 -- Disabled persistent connections by default.

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This commit is contained in:
Aymeric Augustin
2013-05-09 15:42:14 +02:00
parent f25fc5b220
commit 3d595c3bc3
5 changed files with 34 additions and 36 deletions
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24
docs/releases/1.6.txt
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@@ -66,13 +66,8 @@ Persistent database connections
Django now supports reusing the same database connection for several requests.
This avoids the overhead of re-establishing a connection at the beginning of
each request.
By default, database connections will kept open for 10 minutes. This behavior
is controlled by the :setting:`CONN_MAX_AGE` setting. To restore the previous
behavior of closing the connection at the end of each request, set
:setting:`CONN_MAX_AGE` to ``0``. See :ref:`persistent-database-connections`
for details.
each request. For backwards compatibility, this feature is disabled by
default. See :ref:`persistent-database-connections` for details.
Time zone aware aggregation
~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -298,21 +293,6 @@ Django 1.6 introduces ``hour``, ``minute``, and ``second`` lookups on
``hour``, ``minute``, or ``second``, the new lookups will clash with you field
names. Append an explicit :lookup:`exact` lookup if this is an issue.
Persistent database connections
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Connection setup not repeated for each request
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
When Django establishes a connection to the database, it sets up appropriate
parameters, depending on the backend being used. Since `persistent database
connections <persistent-database-connections>`_ are enabled by default in
Django 1.6, this setup isn't repeated at every request any more. If you
modifiy parameters such as the connection's isolation level or time zone, you
should either restore Django's defaults at the end of each request, force an
appropriate value at the beginning of each request, or disable persistent
connections.
``BooleanField`` no longer defaults to ``False``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~