Is itnpossible to have a db cluster know the state of each and every
call and then use Heartbeat on this db +
fs cluster so that clients see only one ip where as internally all fs
boxes refer db for call states, db again is under replication.
This in the thioery can be written, but I am sure if we think bit more
on this direction the problem seem to be getting addressed.
Other guys also chip in their 2 cents, we just need 50 of em to make a
full dollar.
Thanks & Regards,
Mitul Limbani,
Founder & CEO,
Enterux Solutions Pvt. Ltd.,
The Enterprise Linux Company (r),
http://www.enterux.com
http://www.entVoice.com
On 30-Aug-2009, at 12:14 AM, Ken Rice <[email protected]> wrote:
It is not possible to do a live migration at all right now... There
is no way to move a call and have all the states required for that
call to magically re-appear on a different instance. This will
require a fair bit of work to get there.
It is possible to configure fs via some back end DB magic to share
configurations ie: n+1 or “warm standby” style fault tolerance
but you are going to loose the calls that are up when the failure oc
curs.
From: Raimund Sacherer <[email protected]>
Reply-To: <[email protected]>
Date: Sat, 29 Aug 2009 20:33:21 +0200
To: <[email protected]>
Subject: Re: [Freeswitch-users] FreeSWITCH HA + Loadbalancing
Hmm, so basically 100 interested companys which each chip in 1000
bucks :-)
sounds like lots of manpower, but on the other hand, I do not know
the issues regarding the SIP protocoll, but, basically, isn't it
*just* to tell another FS box to listen on port x for voicetraffic,
forward it to ip on port y?
ok, i understand there's a lot going on under the hood, i guess it
would mean to setup a call, but take care to not really set up the
call, just the internal state ...
hmm, could it theoretically be done with the event system? ok, i
guess I have to dive further into the internals to fully understand
the scope.
But a live migration, where the box is available, be possible right
now? Would be a step i would like to implement just to be able to do
work on a hardware node if necesary without interrupting the
service ...
--
Raimund Sacherer
-
RunSolutions
Open Source It Consulting
-
Parc Bit - Centro Empresarial Son Espanyol
Edificio Estel - Local 3D
07121 - Palma de Mallorca
Baleares
On Aug 29, 2009, at 6:01 PM, Anthony Minessale wrote:
We have previously estimated the development of live fail over
(after a box dies where live migration is no longer possible) to
exceed 100k in development costs.
It requires several additions to the sofia sip library, freeswitch
and a dependancy on some other code we would have to implement to
manage it.
It may or may not be worth it to raise that kind of funding just to
avoid an occasional disaster.
Then there is a matter of securing the time of the developers
necessary to carry out the implementation.
On Aug 29, 2009 10:19 AM, "Brian West" <[email protected]> wrote:
I was able to do this using OpenVZ, You can get away with it on
smaller instances... like if you're doing one instance per company but
don't expect live migration to work as well on large instances with
thousands of calls up at once. You need a fast network, fast disks and
to follow the howto on the wiki.
/b
On Aug 29, 2009, at 4:58 AM, Steve Kurzeja wrote: > You still have
hardware failures and fail-over...
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