[SR-Users] High availability

[Daniel W. Graham]

Yes, srv record for both. You can control where the requests go using priority/weights.

The location(registration) records are stored in the database, so the registrations are not bound to a specific server.

For high availability I have had good luck with corosync / pacemaker combination for kamailio high availability. While this is certainly more complex than using srv records, it is another possibility. I use a combination of both. I have also had good luck using corosync / pacemaker /drbd combination for database availability.

-Dan

From: sr-users-bounces at lists.sip-router.org [mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Moacir Ferreira
Sent: Tuesday, March 12, 2013 2:36 PM
To: Kamailio Mail List
Subject: Re: [SR-Users] High availability

The limitation is when the client phone is not srv aware. But anyway, for sure this would be the best solution. So, if I understood, we install 2 servers (let's say server A and server B) and both use the same SQL server/database and we create 2 sip-srv's in our DNS, done. Is this?

Now, devices that run over batteries will usually use SIP over TCP to save power, making it possible to send few keep alive. What happens if a client was registered on server A and this server fails? Will every client, when trying to make a call, switch from server A to server B based on the sip-srv record? Just by having access to the same SQL database will server B be able to call (locate) a client that was registered initially on server A?

Thanks,

Moacir
________________________________
From: davy.van.de.moere at gmail.com<mailto:davy.van.de.moere at gmail.com>
Date: Tue, 12 Mar 2013 10:34:58 +0100
To: sr-users at lists.sip-router.org<mailto:sr-users at lists.sip-router.org>
Subject: Re: [SR-Users] High availability

Use multiple kamailio's, access them over sip-srv (that will give you high availability) , and checkout cassandra if you need db-connectivity ;)

That should be imho the simplest and oh boy efficient :)


On 12 Mar 2013, at 10:29, Moacir Ferreira wrote:

Hi,

What would be the community's architecture advice for deploying Kamailio in a high availability environment? I am looking for something simple, still efficient.

Thanks,



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