Preston Landers wrote:
4) Use isapi-wsgi: This seems to be getting more popular but it seems
to use threads and I'm wondering whether this will break my app in
subtle ways. I make heavy use of various Python C extension modules
which may not be fully threadsafe. Also within my app code there is
extensive use of unprotected module-level Python variables. Or am I
misunderstanding how this works?
Are your module-level variables mutable or immutable? If they are
mutable, then I would say you can't go with a threaded model here (but
may be mistaken).
You may be able to use isapi-wsgi with a custom application pool to
achieve what you are looking for. If you can restrict the application
pool to only use one thread per process (which I am not sure how to do)
and then use multiple processes (properties -> performance -> maximum
number of worker processes), you may be able to achieve what you are
trying to do. You might want to ask more questions on the isapi-wsgi board.
Another project to look into is PyISASPIe which is a similar concept to
isapi-wsgi. The author of that project is active on the boards and
might be able to suggest to you how to limit the application pool as
described above.
--------------------------------------
Randy Syring
Intelicom
502-644-4776
"Whether, then, you eat or drink or
whatever you do, do all to the glory
of God." 1 Cor 10:31
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