[OpenSIPS-Users] Clustered User Location Full Sharing persistency and Cassandra

[Vlad Patrascu]

Hi Jock,

The Cassandra module hasn't been well maintained for quite some time up 
until relatively recently (the code wasn't even compiling anymore) so 
there is actually no RPM for it (yet).

Although the issues have been fixed and the module is now up to date 
with the latest Cassandra drivers, the features required for the usrloc 
clustering have only been implemented on the devel branch for Opensips 3.0.

Regards,

Vlad Patrascu
OpenSIPS Developer
http://www.opensips-solutions.com

On 10/09/2018 06:40 PM, Jock McKechnie wrote:
> Good morning;
>
> We are attempting to implement a Full Sharing topology User Location
> cluster and I'm trying to make sense of whether this can work with
> Cassandra or not.
>
> At present we have a four-node cluster (across two datacentres)
> working in an in-memory state, with the nodes seeding from each other
> (by setting the clusterer node definition flags field to 'NULL' for
> all nodes). We'd like to consider having the data set stored to a
> Cassandra cluster should we require a complete OpenSIPS cluster
> restart, however the following line in the USRLOC documentation has me
> wondering:
>
> "Currently, registrations may optionally be fully managed inside NoSQL
> databases which support key/multi-value column-like associations.
> Example known backends to support these abstractions at the time of
> writing are MongoDB and Cassandra. Of these two, only the MongoDB
> OpenSIPS driver has been so far extended to implement the required
> NoSQL API endpoints."
>
> I read this to say that while both MongoDB and Cassandra can do what
> is required, only the MongoDB OpenSIPS modules are currently in a
> state to support it. Is this correct?
>
> I can't even work out what RPM the Cassandra module is in, which
> doesn't help with me attempting to test. :)
>
> My thanks for the clarification;
>
>   - Jock
>
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