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Fixed #3137 -- Added 'Clearing the session table' section to docs/sessions.txt 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@4268 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Adrian Holovaty 2006-12-30 07:30:00 +00:00
parent f21cbb40b2
commit fcdbb92918
1 changed files with 17 additions and 0 deletions
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docs/sessions.txt
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@ -217,6 +217,23 @@ browser-length cookies -- cookies that expire as soon as the user closes his or
her browser. Use this if you want people to have to log in every time they open
a browser.
Clearing the session table
==========================
Note that session data can accumulate in the ``django_session`` database table
and Django does *not* provide automatic purging. Therefore, it's your job to
purge expired sessions on a regular basis.
To understand this problem, consider what happens when a user uses a session.
When a user logs in, Django adds a row to the ``django_session`` database
table. Django updates this row each time the session data changes. If the user
logs out manually, Django deletes the row. But if the user does *not* log out,
the row never gets deleted.
Django provides a sample clean-up script in ``django/bin/daily_cleanup.py``.
That script deletes any session in the session table whose ``expire_date`` is
in the past -- but your application may have different requirements.
Settings
========