I'm trying to capture raw http requests for re-playing it later using JMeter and Raw Data Source plugin. I've tried tshark/tcpdump but it captures the whole TCP data which I dont need, moreover, it cannot save such format to the file, I dont want to use any web server logging plugin to do it, since when you get access to the request data it is usually already parsed by the server, so you have to recreate the raw request which defeats the idea of "rawness". To put it simple, I want to capture HTTP request as they on the wire, before it got parsed or whatever and I want to save it to a file. is it possible? how?
I would like to achieve the following:
Request arrives to production machine, it is being processed and asynchronously the request is cloned and redirected to another machine (for test purposes). The response from test machine does not matter.
I don't want to "record" live traffic and then replay it on test machine, I'm interested in live flow of live requests.
Is it achievable?