Forum Discussion
NimbostratusRTSP Load balance
Hi I need to write an irule to check the rtsp request, and then load balancing to different pools. I wrote a testing rule, but is not working. I'm using tmos 10.2.x Anyone can help?
Thanks!
rtsp://VS_IP/abc.sdp --> Pool_abc
rtsp://VS_IP/def.sdp --> Pool_def
when RTSP_REQUEST {
if {([RTSP::uri] ends_with "cam01.sdp")}{
pool pool_cam01
}
elseif {([RTSP::uri] ends_with "cam02.sdp")}{
pool pool_cam02
} }
The problem here is that I'm receiving this messages in LTM log
"TCL error: IRULE_LB_RTSP address in use (line 1) invoked from within "pool pool_cam01"
and I don't know how to proceed. Any help?
3 Replies
My guess is the request you are seeing is from a existing connection that has been LB to a different pool. On the next RTSP request you are trying to change the pool when then flow has been established. Once a flow is setup you will have to run a LB::detach then you will be able to pick the pool.
Paul_109877Thanks Richard, in deed, it seems to be the behavior, the problems, how can I catch and make a decision using the section "/cam01.sdp" in URL "rtsp://VS_IP/cam01.sdp" before the request is balanced?
I really appreciate your help,
First and I am guessing this is what is happening do you have Source persist enabled? This will push the request to the server in the source persist table before you ever see the request.
If you do not I did find this Dev central posting from 2009 that show the same issue
https://devcentral.f5.com/questions/-address-in-use-tcl-error
There they look for the [IP::server_addr] with a catch statement, if the catch statement fires then the request has not been load balanced if it has then you fire off a LB::detach and then use the pool command.
