[Serusers] Carrier-grade framework for SER
Juha Heinanen
jh at lohi.tutpro.com
Fri Jan 28 06:02:15 CET 2005
Andreas Granig writes:
> Or do you mean something like
>
> forward_tcp("foohost", "5060");
> forward_tcp("barhost", "5060");
>
> and on the receiving hosts
>
> if(/* register from replicating host */)
> save_noreply("location");
>
> which would be a possibility, indeed...
this is what i meant.
> I think mode 1 (Write-Through) should be used because the SER could
> start up while some of the contacts aren't flushed to DB yet.
yes, my error. i didn't remember which mode number was write-through.
> However, how would you set up your database connections here? Using a
> common usrloc database for all hosts (-> single point of failure)? This
> is the main point. _How_ do you share the contacts as reliable as
> possible so that a host can go down for a while without getting out of
> synch regarding the contacts?
that is database replication problem. i'm pretty sure that mysql ab has
a solution for it if it is not included in the freely available 4.1
release.
-- juha
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