Most of our pages are served by identical load-balanced boxes, and it
doesn't matter which box serves what.
However, a few special pages store a lot of per-user session data. Instead
of burdening our db machine to store this data, I would like to use the
filesystem. This requires that for these special pages, users are assigned
a (random) box and are redirected back to that box on subsequent
requests (presumably using a cookie).
I know that some of load-balancers support this feature, but it seems like
it would be relatively simple and efficient to implement by adding a
TransHandler to the front-end proxy server on each box. The proxy would
connect to a backend mod_perl httpd on a different box if it needed to,
for these special pages only.
Of course, the front-end proxy servers don't have mod_perl, so the
TransHandler would have to be written in C (?). Does anyone know of any
existing code that does this sort of thing? Or simply well-written C
TransHandlers that I could work off of? Is there a better way?
Thanks,
Chris
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