[asterisk-dev] Share call state between cluster nodes for HA

Russell Bryant russell at digium.com
Wed Jan 19 08:01:32 CST 2011

----- Original Message -----
> Hi all,
> I've just read the interesting res_ais docs and that got me
> wondering...
> Is there any work / thoughts on being able to share call state
> information between an active-standby / active-active (or some other
> sort of) asterisk cluster, so in the case of a fail-over the running
> calls would not be dropped?
> Some time ago we've made some tests with two asterisk servers with the
> same IP (!) but one of them were not able to send data out over this
> IP (using iptables), but one of many problems was that the CSeq SIP
> counters would be out of sync. Anyway, just a wacky test.
> Just wondering if someone else got some info on this.

This is not something we're targeting to do in Asterisk at this time.  However, there is a new project, Asterisk SCF, which is doing it.  Take a look.


Russell Bryant
Digium, Inc.  |  Engineering Manager, Open Source Software
445 Jan Davis Drive NW   -    Huntsville, AL 35806  -  USA
jabber: rbryant at digium.com    -=-    skype: russell-bryant
www.digium.com -=- www.asterisk.org -=- blogs.asterisk.org

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