[Freeswitch-users] UUID - how unique is it?

[Michael Jerris]

The apr uuid stuff already has a portion of the uuid thats per-instance. I've seen a lot of details in this thread that are not accurate to my recollection of this code.  Has anyone actually dug in and looked at it?  Its been a while by my recollection is each instance gets a certain number of bits from random at startup, then its a combination of time + counter.  The only collision possibility would be the random at startup portion which would be much less likely than getting struck by lightning.

Mike

On May 20, 2013, at 2:20 AM, Steven Ayre <steveayre at gmail.com> wrote:

> Sorry I meant to say with the daemon. (uuidd). That would be unique between multiple  instances too. If the time one is used its already unique to the server. But as I said, I'm not sure if that's the one FS uses.
> 
> On Monday, May 20, 2013, Yossi Neiman wrote:
> If you're running multiple FS instances, you could also use both the FS
> server UUID in addition to the session UUID together.  That'd mean
> storing more data but it would probably be on the order of winning a
> $500 million USD Powerball game twice within the same month...
> 
> -Yossi
> 
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