Hi Carsten, from my experience Usrloc + DMQ works very well, rare replication race conditions are insignificant since the state is quite volatile anyway.

However you can only have that many nodes, great for clustering.

On Mon, Nov 29, 2021 at 6:47 AM Carsten Bock <carsten@ng-voice.com> wrote:
Hi,

I wanted to quickly ask the group about experiences with DMQ and Usrloc/Dialog.

I don't expect any issues when choosing such an approach, especially since we would have re-transmits for a message (fr_timer = 30 seconds) if we did not receive any answers or scenarios alike. So I assume, having short "outages" (less than 30 seconds) for the communication is just fine.

So far I used DMQ in a non-IMS setup for synchronizing usrloc with ~15k Subscribers and it worked really well.

One concern brought up (not by me) was, that synchronizing usrloc with DMQ might not be reliable at scale. I would also love to understand how to treat situations when the communication is lost for a longer period of time (e.g. if the communication between nodes is lost for 5 minutes?).

Can anyone share some real-life experiences?

Thanks,
Carsten




--
Carsten Bock I CTO & Founder

ng-voice GmbH

Trostbrücke 1 I 20457 Hamburg I Germany
T +49 179 2021244 I www.ng-voice.com

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Managing Directors: Dr. David Bachmann, Carsten Bock

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