further "Hacking" the event model of Nginx

Mauro Stettler mauro.stettler at gmail.com
Fri Jul 16 09:09:33 MSD 2010

to be able to receive the request of one backend, process it, and then
go to the next one, i think this will help you:

for getting the post value this might help:


On Fri, Jul 16, 2010 at 12:50, Vincent Huang <lists at ruby-forum.com> wrote:
> Mauro Stettler wrote:
>> you really need to specify more details about what you are doing. is
>> that HTTP? what are you processing, maybe you don't need to hack
>> anything, depending on what you do with the request...
> Thanks for your help;-)
> yes, it is HTTP. Our business logic is split into multiple tasks, they
> are deployed on multiple backend servers. We have a master server
> visible to the client. The master server need read client post data
> ,modify the data and send to backend server1, the backend server1 also
> have nginx running, it should do a time consuming task. The master
> server received the response from backend server1 and send back to
> backend server2. backend server2 also do a time consuming task. the
> master server received the response and send back the client.
> By now, I have the following design:
> the master server handle the client request, it will modify the post
> body and bypass request to backend server1.(I may need to learn code in
> proxy_module and fastcgi_module)
> problem:
> How can I hook the response send back from backend server1? Can I use
> body filter module so that I can get the response body and send to
> backend server2 again?
> the backend server logic is simple, it will invoke functions in dll.
> problem:
> the functions in dll is time consuming, Will it block the nginx?
> Thanks again;-)
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