[OpenSIPS-Users] Distributed Dialog and CacheDB Persistence

Razvan Crainea razvan at opensips.org
Thu Feb 23 10:22:55 CET 2012

Hi, Ryan!

The CacheDB feature was only added for the dialog profiles. This allows 
you to do load balancing scenarios through multiple OpenSIPS instances 
that share the same profiles.
Regarding the persistence of the dialog data, you will also have to use 
a database backend. But if we are talking about the dialog profiles 
persistence, then the discussion is more complex, as it depends on the 
CacheDB backend.
In conclusion, this new feature does not provide persistence, but opens 
some doors for new scenarios, like distributed load balancing as pointed 


Răzvan Crainea
OpenSIPS Developer

On 02/22/2012 08:50 PM, Ryan Bullock wrote:
> Does the new distributed dialog with cached also allow for dialogs to
> persist through a restart of opensips? Or would that still require a
> database backend?
> Maybe a better question what actually gets distributed with the dialog
> (e.g. dialog flags, dialog variables, etc)?
> The new distributed system is very exciting. Can't wait to start
> building with it.
> Regards,
> Ryan Bullock
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