I have now two problems to be solved.
One is that the default directory path of recording file are changing randomly every time I restart Wowza Media Server 3.0
It could be [wowza home]/content/ and also could be [wowza home]/content/abc/
The other is that Live Stream Record Add On stops to response to the HTTP API call some time.
I use script to restart Stream Recording every one hour in order to make a new file with the timestamp.
I really need some help