[Asterisk-Users] looking for failover ideas

[Anish Basu]

We are building asterisk clusters using mysql replication.  All the
configuration and cdr data is stored using the res_mysql module.
Replication creates identical servers.  Then, the phones register to each
server using DNS SRV records.  If any server goes down, all the phones
registered to that server will register to any of the remaining servers.
The only downside of this is that all active calls get dropped once the
server goes down, but users can make and receive new calls instantaneously.

Another idea is to use Asterisk Realtime so that the mysql replication will
share registration information between servers, thus eliminating the need
for the phones to re-register.  Has anyone successfully implemented this or
something similar?

--Anish

Message: 8
Date: Tue, 23 Aug 2005 08:33:03 -0700 (PDT)
From: "Jeremy C. Reed" <reed at reedmedia.net>
Subject: [Asterisk-Users] looking for failover ideas
To: Asterisk-Users at lists.digium.com
Message-ID: <Pine.NEB.4.62.0508230821430.639 at pilchuck.reedmedia.net>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

I found many mailing list threads and one wiki webpage with ideas and 
questions related to failover and high availability solutions.

Is there any webpage or wiki page that summarizes all these ideas?

What I have found:

- case 1: two identical Asterisk boxes with one acting as hot-failure backup
http://www.voip-info.org/tiki-index.php?page=Asterisk+failover+case1

- low tech DPDT relay
http://www.voip-info.org/tiki-index.php?page=Asterisk+failover

- VRRPD (KeepAlive daemon)

- Linux-HA and DRBD and heartbeat monitoring

- many mailing list postings with partial ideas

Should I ask the asterisk docs list instead?

  Jeremy C. Reed