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From "Graham Dumpleton (JIRA)" <j...@apache.org>
Subject [jira] Created: (MODPYTHON-253) Thread local storage only lasts for life of a request.
Date Mon, 29 Dec 2008 10:02:44 GMT
Thread local storage only lasts for life of a request.
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                 Key: MODPYTHON-253
                 URL: https://issues.apache.org/jira/browse/MODPYTHON-253
             Project: mod_python
          Issue Type: Bug
          Components: core
    Affects Versions: 3.3.1
            Reporter: Graham Dumpleton


The mod_python code creates a fresh Python thread state object for every request, with it
being destroyed at end of the request. This thread state object is where thread local storage
is kept. As a result, thread local storage isn't really thread local storage and is instead
request local storage for that thread. This can be detrimental to performance for any web
framework which relies on being able to cache stuff in thread local storage for use at any
time in life time of the process. Worst case will see that data being recreated on every request,
which could cause excessive overhead on process/application if creating the data is time consuming.

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