On 10/26/2012 03:56 PM, Gurjar, Unmesh wrote:
Hi,
I can think of two alternative solutions for maintaining uniqueness:
1.DB look up: After generating a new MAC address, checking uniqueness
by doing a DB look up.
The Quantum code ensure that the MAC address generated is unqiue. This
is done by checking against MAC addresses already allocated.
2.Having a 'unique' constraint on the 'mac_address' column and handle
the DB IntegrityError and retry generating a new MAC address.
I also think, initializing the 'random.seed' in start-up process of
Quantum server (with a different value -- configurable one; on each
server) could help in reducing conflicts.
I think either of the above solutions could be used for fixing LP bug
#1050924.
Thanks & Regards,
*Unmesh Gurjar*| Lead Engineer | NTT DATA Global Technology Services
Private Limited | *w.* +91.20.6604.1500 x 379 | *m.* +91.982.324.7631
| [email protected] <mailto:[email protected]> | Learn
more at nttdata.com/americas**
*From:*[email protected]
[mailto:[email protected]]
*On Behalf Of *Neelakantam Gaddam
*Sent:* Friday, October 26, 2012 11:37 AM
*To:* [email protected]
*Cc:* [email protected]
*Subject:* Re: [Openstack] MAC address uniqueness in folsom
Hi,
We want unique MAC addresses in our environment only but across
multiple tenants.
Thanks for quick reply.
---
Neelakantam
On Fri, Oct 26, 2012 at 9:38 AM, Matthew Thode <[email protected]
<mailto:[email protected]>> wrote:
On 10/25/2012 11:02 PM, Neelakantam Gaddam wrote:
> Hi All,
>
> Does the MAC address generated in quantum is unique across tenants in
> folsom?
> I am developing an application that requires unique MAC address. If not
> unique, is there any way to make MAC address unique?
>
> Please help me. Thanks in advance.
>
>
>
>
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Do you need it to be globally unique (amongst all macs on earth) or
simply unique in your environment?
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Thanks & Regards
Neelakantam Gaddam
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