[OpenSIPS-Users] t_replicate and dispatcher module to forward REGISTER messages

[Jonathan Hunter]

Hi Guys,
We have an old platform we are looking to redesign but in the meantime we need to fix a problem we have.
Currently we have an opensips proxy/registrar with 2 x Asterisk boxes behind it.
Now currently we use t_replicate and the dispatcher module (ds_next_domain()) to send REGISTER requests in parallel to both Asterisk Servers so they can update their sip peers.
This works great but we sometimes (an issue we are investigating) dont always get a 200ok response back from one or both Asterisk servers for the REGISTER message.
Therefore I am looking to resend the REGISTER whenever this may happen.
This is fine using the fr timers should both Asterisk Servers not respond, however if only 1 Server doesnt respond, and the other does, this problem is lost, due to the parallel forking being applied to the t_replicate scenario.
I can capture 200 ok messages in onreply routes to confirm which Asterisk servers have responded, however I cannot t_relay again from this type of route.
Is there another way to do this? Whereby I can remain transaction stateful, and resend a REGISTER message if only one of the Asterisk Servers doesnt respond to a REGISTER message?
Thanks
Jon 		 	   		  
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