apache as HTTP load balancer

[ik]

Hello,

I require to create an HTTP load balancer. I thought on using Apache for it
using mod_proxy, however there are few things that there are few things that
I do not know/understand how to do, and look for your help in this matter.

I have web service requests (soap [who hates .net ?], xmlrpc and json) and
also some REST requests.
The thing is, that the content of the web service (wsd for short) have
information that is not suited for the internal workers, and should be
modified for something else, and only on answering on the data, it  should
change again.
Furthermore I have more services on the LB server that should use the
original data, while the internal servers does not know how to handle it, so
I require to store such requests somehow to be available and make be changed
again to the original content.

The thing is, that I do not understand how to do it.
I understand how mod_proxy should be configured for workers, but not how to
do the work with WSD as I require.

Have any one had any experience with such things or can help me with
pointing to a good documentation on this subject ?

Thanks,
Ido

LINESIP - Opening the source for communication
http://www.linesip.com
http://www.linesip.co.il
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