Open Stack

I don't plan to use Keystone at all.

On Mon, Jun 23, 2014 at 8:13 PM, Kuo Hugo <tonytkdk at gmail.com> wrote:
> Do you plan to have two keystone servers in each region or single keystone
> server for both east/west coast Swift proxy?
>
> 1. Geo-DNS + single Swift region endpoint in keystone
> 2. Geo-DNS for Keystone servers and each Keystone server returns the local
> Swift endpoint.
> 3. Let user to switch which region of Swift endpoint would they like to use.
>
>
> Hope it help
>
>
> 2014-06-24 8:38 GMT+08:00 Shrinand Javadekar <shrinand at maginatics.com>:
>>
>> Hi,
>>
>> I am trying to understand the notion of "regions" in Swift. To start
>> with, it's kinda confusing that the notion of "region" in Keystone is
>> not exactly the same as that of Swift. So I could authenticate with
>> Keystone, get a Swift endpoint for a region (Keystone's notion of a
>> region) and write/read data. That could then possibly translate to
>> data writes/reads from another region (Swift's notion of a region).
>>
>> So, as per the example in [1], let's say I have two regions: SF and
>> NYC. I would like the have clients write to the most local region. How
>> do I achieve this? I am *not* looking to use container-sync.
>>
>> I had a quick word about this on the #openstack-swift irc channel.
>> Asking over email for better clarity and more details. I believe the
>> way to go about this would be:
>>
>> (1) Have two Swift proxy servers in each region. Configure DNS such
>> that the domain name of the Swift proxy server resolves to the
>> "closest" node.
>>
>> Each of these proxy servers will be configured with read/write
>> affinity to object servers in its region.
>>
>> This is great because it means I only have to use one endpoint.
>>
>> (2) Have two Swift proxy servers in each region with separate IPs.
>> Inform clients about the closest endpoints and let clients write to
>> the correct proxy servers. If they make a mistake, data can still get
>> written to the in-correct node.
>>
>> Any other way? Is there a way to query the available regions (say a
>> latency test) and use the one which is fastest to reach?
>>
>> Thanks in advance.
>> -Shri
>>
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>
>