A fork action is used when you would like to run some actions/requests in parallel of the main thread of your script.
It is especially used for PUSH technology. You should look...
I was trying to record google with Neoload but getting error as mentioned below:
An error occurred when playing request to the server: org.apache.commons.httpclient...
What do you mean by your are using RTMP. Are you trying to record a RTMP application?
If yes did you check the "RTMP" option in the recording panel? But without that option...