[Freeswitch-users] Live Upgrade Techniques

[Even André Fiskvik]

Can you comment some more on how this is configured?
Would it be something that could be added to the wiki in the SBC setup  
page?

Best regards,
Even André Fiskvik

On 12. juni. 2009, at 12.16, Saeed Ahmad wrote:

> I've experience with a commercial SBC, these are two machines  
> running in cluster mode. In that case if one SBC is going down then  
> other will take all new calls including the call which were active  
> on broken SBC (SIP only).
>
> Thats quite ideal for wholesale traffic where the SBC will never be  
> idle.
>
> On Fri, Jun 12, 2009 at 8:25 AM, John Dalgliesh <johnd at defyne.org>  
> wrote:
> On Thu, 11 Jun 2009 at 22:57 -0500, Brian West wrote:
> > On Jun 11, 2009, at 10:35 PM, John Dalgliesh wrote:
> >> On Thu, 11 Jun 2009 at 16:33 -0400, Michael Giagnocavo wrote:
> >>>
> >>> Well, if you're running multiple machines, waiting for it to  
> drainstop
> >>> isn't that big of a deal unless you're in some sort of hurry,  
> right?
> >>> Give it an hour or so to drainstop, then kill 'em.
> >>
> >> Yes that's exactly what I'm trying to do. The problem is some  
> people will
> >> only try one IP address.
> >
> > Clients that don't properly implement SRV/NAPTR and fail over need  
> to be
> > smacked.  :)  (not customers but software that fails to do that)
>
> Yes I'm sure much of their software can do this but it has been set  
> up for
> static numeric IPs. And getting the IP changed is a week-long  
> process for
> some customers!
>
> >>> Would it not be simpler to try to do something with re-invites  
> or REFER,
> >>> assuming your endpoints support it?
> >>
> >> That was actually plan A. I already added a property in  
> sip_profile called
> >> failover_redirect, which specifies another server to try if FS  
> can't
> >> allocate any more sessions (e.g. too busy, paused, shutdown asap,  
> etc.),
> >> by sending back a SIP 302 Moved Temporarily response, instead of  
> 503 Max
> >> Calls In Progress.
> >
> > You can't send a 302 to a call thats already established.
>
> Yes and I don't want to touch established calls - those calls can stay
> there until they drop. This is sent to new requests when
> switch_core_session_request fails in mod_sofia.
>
> >> Turns out not all my endpoints support it :(
> >
> > AKA broken endpoints.  :)
>
> Some are broken. Some just have this feature disabled. For 'security
> reasons'. You know the drill.
>
>
> {P^/
> John
>
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