[Openstack] Keystone active/active

Ryan Lane rlane at wikimedia.org
Sat Dec 21 21:19:32 UTC 2013


On Sat, Dec 21, 2013 at 4:07 PM, Jay Pipes <jaypipes at gmail.com> wrote:

> On 12/21/2013 03:27 PM, Ryan Lane wrote:
>
>> On Thu, Dec 19, 2013 at 9:05 PM, 陈锐 <chenrui.momo at gmail.com
>> <mailto:chenrui.momo at gmail.com>> wrote:
>>
>>     I think you should use UUID token and backend should be sql or
>> memcache
>>
>>
>> If you want this to work across regions, redis or sql is likely what you
>> want (with replication). sql with galera is likely the best option if
>> you want to avoid a SPOF for writes.
>>
>
> For the identity backend, yes :) But definitely not for the token backend!
>
>
Really? Why shouldn't the tokens be shared between the regions? Wouldn't
that mean you need to authenticate for each region to get unscoped tokens?

- Ryan
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