On Mon, 21 Jun 2010, Samuele Kaplun wrote:
> As such the whole stack is called upon every request, even partial
> range request, so performances might be yet not ideals, as
> mod_wsgi+Invenio is called anyway everytime.

However, the Invenio daemon process should basically quickly return OK
to Apache to stream the given file (or its parts), if the permissions
are right, so that back-end processes are quickly liberated to serve the
next requests.  This should enhance the scalability very considerably
when compared to streaming being done fully by the back-end processes
themselves.

Best regards
-- 
Tibor Simko

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