TCP::payload - How do I get data from the TCP data field?

It needs to be pointed out that there is currently a known issue in v9.0.1 (CR41716) that will prevent making a load-balancing decision in the CLIENT_DATA event from working correctly.

 

 

The problem is that TCP::collect doesn't properly hold the internal accepted event from reaching the proxy. This results in a load-balancing decision as soon as the TCP connection is established and *before* any data has actually been received. After the load-balancing decision has occurred and the server-side has been connected, selecting a new pool will have no effect.

 

 

There is possibly a very crazy way to make it work that involves using the LB_SELECTED and USER_RESPONSE events, as well as the TCP::notify and LB::reselect commands. However, I instead highly recommend getting the impending v9.0.2 release over doing this kind of thing (you're welcome to experiment).