[Asterisk-Users] looking for failover ideas

[Garth van Sittert]

I have had an idea of using two identical servers:  Server A with IP 
x.x.x.a and server B with IP x.x.x.b.  Server A is live while server B 
sits in the background monitoring server A.  Server B rsync's asterisk 
config files daily with server A.
In the event of server A going down, server B changes it's IP to 
x.x.x.a.  The calls will obviously drop, but should register with server B.

Comments???


Anish Basu wrote:

>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
>
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