[Freeswitch-users] Virtualisation and freeswitch

[Peter Olsson]

Some people claim they have solved it, but it's still all dependant on the hw config, the VM config etc. There is not one generic solution that fixes timer problems in virtualized environments. And there is no "fix" available that makes timing in a VM as accurate as real hw systems.

I would say that FS timing works at least as good (or probably better) than Asterisk. But in virtualized systems the timing might be bad enough to produce bad audio. I would never use a virtual host for production, but I know there are people who use it that way, and are happy with the results.

The basic tricks I know of in ESXi is to only give the virtual host one CPU (SMP systems makes the clock less accurate in this case), and to make sure that this core is not shared with other hosts.

/Peter

________________________________________
Från: freeswitch-users-bounces at lists.freeswitch.org [freeswitch-users-bounces at lists.freeswitch.org] för Grygoriy Dobrovolskyy [megahohol at gmail.com]
Skickat: den 29 januari 2011 01:39
Till: FreeSWITCH Users Help
Ämne: Re: [Freeswitch-users] Virtualisation and freeswitch

Another interesting point i have asked in near topic in opensips mailing list about timer and Saúl Ibarra Corretgé told me this:


About Asterisk, the timing issues were resolved long ago and works very well with DAHDI if HPET is enabled. Latest releases support other timing sources: TimerFD and pthreads based timing. AppKonference did the timing and on its own, but it also brought another advantage: the possibility of not to use Zaptel/DAHDI (MeetMe uses DAHDI mixing engine, so it's limited to 8KHz...).

So this virtualization timer problem is not so complicated to resolve if others done it ?


2011/1/29 Grygoriy Dobrovolskyy <megahohol at gmail.com<mailto:megahohol at gmail.com>>
I've heard about proxmox, and even tested it a while ago. It's a good solution.
The problem of Openvz is the maintenance mess. In clear you always need to keep updated kernels, possible have compatibility issues and other stuff when maintaining your virtual infrastructure up to date / migrating servers back and forth. With a complete hypervisor this problems do not exist.



2011/1/28 Brent Paddon <brent at overthewire.com.au<mailto:brent at overthewire.com.au>>

Why would it possibly matter if it's more of a 'jail' than 'virtualisation' ?   Isn't the outcome the important thing ?

In regards OpenVZ there is an ISO installer called Proxmox which helps you administer the whole system and gives you a pretty decent web interface for management.  We use it extensively for voice applications.

http://www.proxmox.com/products/proxmox-ve

Brent

On Fri, Jan 28, 2011 at 9:52 PM, Grygoriy Dobrovolskyy <megahohol at gmail.com<mailto:megahohol at gmail.com>> wrote:
Hello list, le me introduce myself first, I am Grigoriy Dobrovolskyy currently working as voip administrator and call centeres integrator. I worked a lot with asterisk, i think Fs is a great software but not easy to learn.

I have googled my question and did not found a clear answer.

With what technology i can virtualise freeswitch without timer problems ?

I know that i can use OpenVZ but it's more 'jail' then virtualisation. I heard that Amazon EC with High CPU instance works (confirm?)

Can someone give me info of a succesfull installations with Conferences, Moh  / mixing ? And a technology used ?

Thank you.

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