[Zope-dev] Globally unique id's in Zope in a new way

[Jason Spisak]

Thanks.  I like the fact that it is unique across multiple servers.  I
wonder If their is a way to get a truely unique one generated by using the
MAC address with time?

Sam Gendler writes:

> I just generated something like this for a product, in python.  In order
> to guarantee uniqueness across a cluster of servers, I use the last
> octet of the ip address (assuming the cluster is all on the same
> subnet), the time, a call to randint(1,10000).  If you really want to
> make things interesting, run that through the sha algorithm, and you get
> a nice 160 bit key rendered in hex.
> 
> In obfuscated code, it looks like:
> 
> sha(split(gethostbyname(gethostname()),'.')[3]+str(int(time.time()-900000000))+str(randint(1,1000))).hexdigest()
> 
> but you would do well to make it multiple lines of code... ;-)
> 
> --sam
> 
> 
> -- 
> --------------------------
> Sam Gendler
> CTO, Impossible, Inc.
> 1222 State St. Suite 250
> Santa Barbara, CA. 93101
> p: 805-560-0508
> f: 805-560-0608
> c: 805-689-1191
> e: sgendler@impossible.com


Jason Spisak
CIO
HireTechs.com
6151 West Century Boulevard
Suite 900
Los Angeles, CA 90045
P. 310.665.3444
F. 310.665.3544

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