We use Unison Doug and it works just fine. It isn't perfect in theory but we've had no issues in practice. Your concerns over sacalbility are resolved by implementation - do you need it on every single Asterisk box, or maybe local to just two with routing to them and failover in the dial-plan? Unison is like two way rsync and consequently extremely efficient.
<br><br>Simon<br><br><div><span class="gmail_quote">On 6/17/06, <b class="gmail_sendername">Douglas Garstang</b> <<a href="mailto:dgarstang@oneeighty.com">dgarstang@oneeighty.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Mike,<br><br>I don't think unison is a workable solution. It doesn't scale. The network and system load would increase exponentially as we added asterisk servers to our cluster.<br><br>Doug.<br><br> -----Original Message-----
<br> From: Mike Diehl [mailto:<a href="mailto:mdiehl@diehlnet.com">mdiehl@diehlnet.com</a>]<br> Sent: Fri 6/16/2006 9:40 AM<br> To: Asterisk Users Mailing List - Non-Commercial Discussion<br> Cc:
<br> Subject: Re: [Asterisk-Users] Voicemail with NFS<br><br><br><br> I don't know how big your voicemail system is, but have you considered using<br> Unison to syncronize the vm accross all your servers? I'm deploying multiple
<br> servers with two vm servers, each sync'ed every 5? minutes. If one fails,<br> the other one should be "good enough."<br><br> Just a though,<br> Mike<br><br> On Friday 16 June 2006 16:14, Brian Capouch wrote:
<br> > Douglas Garstang wrote:<br> > >>Douglas Garstang wrote:<br> > >>>I hope someone isn't going to tell me that the voicemail<br> > >><br> > >>directory going away is going to cause Asterisk to fall in a
<br> > >>heap on the floor.<br> > >><br> > >> Brian Capouch wrote:<br> > >>You never give up on dissing Asterisk, do you, Pococurante?<br> > ><br>
> > This would be acceptable behaviour for you?<br> ><br> > An NFS-mounted volume isn't ever going to be as reliable as one mounted<br> > on the local filesystem. You are introducing additional points of
<br> > failure both with respect to there now being two hard drives involved,<br> > as well as an interposed network that can fail in a variety of ways.<br> ><br> > So by definition this arrangement isn't going to be as reliable as one
<br> > based on a native filesystem.<br> ><br> > And you never have answered the direct question: what do you expect the<br> > "logical" thing would be to happen if all the sudden an important system
<br> > resource has just gone away?<br> ><br> > Regardless of the answer (because a rejoinder to that would then be, "So<br> > add that behavior into Asterisk, or help the developers do so . . ") my
<br> > point isn't that you are finding--actually looking for--places where<br> > catastrophic behavior makes Asterisk suffer.<br> ><br> > The problem is that you don't ever say, "So what are some reasonable
<br> > things that might be done in this situation;" instead you emit a<br> > scathing remark ("fall in a heap on the floor") that would indicate<br> > you've discovered some glaring design flaw that any idiot would have
<br> > known to design around ahead of your "finding" it.<br> ><br> > It is not automatically the case that if Asterisk doesn't do something<br> > you think it should do it means that Asterisk is horribly and glaringly
<br> > flawed. But that's what you *always* assume, and you always--ALWAYS--do<br> > so snidely.<br> ><br> > Pococurante.<br> ><br> > B.<br> _______________________________________________
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