[openstack-dev] [Swift] Design note of geo-distributed Swift cluster

Motonobu Ichimura motonobu at gmail.com
Fri Jan 25 13:29:43 UTC 2013


Hi, Oleg-san

Thank you for your feedback.
We'll check your new design.

Our idea is adding concept of  distance among regions so that Swift proxy
can sort nodes by proximity and have
more flexibility rather than distinguish "local" and "remote" regions, I
think.

so, discussion points are

1. Can this idea be acceptable?
2. Can we assume that region number has some rules to calcurate proximity?

Any suggestions would be greatly appriciated.

--
Best Regards,
Motonobu "famao" Ichimura



2013/1/25 Oleg Gelbukh <ogelbukh at mirantis.com>

> Yuzawa,
>
> Please note that we've updated the proposal of the region tier in ring,
> based on feedback from the community. This version assumes that the
> 'Region' value is a number, which correlates with your proposal. New
> version of the region tier design can be found here:
>
> https://docs.google.com/document/d/1ZfP7712PebhitNM_VuOUL1DV5gXEEbHZOBkwyX8PBE4/edit
>
> --
> Best regards,
> Oleg
> Mirantis, Inc.
>
>
> On Fri, Jan 25, 2013 at 1:36 PM, YUZAWA Takahiko <
> yuzawataka at intellilink.co.jp> wrote:
>
>> Hello,
>>
>> I have an interest in geo-distributed cluster of Swift, such as those
>> told in the following bluenotes.
>>
>>  https://blueprints.launchpad.net/swift/+spec/proxy-affinity
>>  https://blueprints.launchpad.net/swift/+spec/region-tier
>>
>> And I wrote a design note about geo-distributed Swift.
>>
>>
>> https://docs.google.com/document/d/1E-kCL4Z1JLO9nHm8y7k-U2xozm1QWvTztlEQH0l76Qg/edit
>>
>> This note is based on an implemantation of multi-site Swift in Colony
>> project.
>>
>>  http://www.slideshare.net/famao/colony-foropenstacksummit
>>
>> Please give me your comments.
>>
>> --
>> Best regards,
>> YUZAWA Takahiko
>> NTTDATA INTELLILINK
>>
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>
>
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