[Nsi-wg] 2-phase commit

[Daniel S. Katz]

Hi Tomohiro,

From what's I've seen in NSI, I agree with you, but I thought in case anyone else reading the list was interested, they might like to see the comparison between the two protocols.

Dan


On Dec 2, 2009, at 8:26 AM, Tomohiro Kudoh wrote:

> Hi Dan,
> 
> Thank you for your e-mail.
> 
> Yes. I agree that the Paxos commit is a good protocol to realize
> reliability.I am familiar with the HARC and Paxos commit since I
> worked together with Jon Maclaren and EnLIGHTened team for Japan-US
> interoperability experiment.
> 
> I think Paxos is a little bit complicated for the basis of NSI
> architecture and protocol discussions. At this stage, it will be
> better to keep discussions on a simple protocol, and even 2PC might be
> too complicated.
> 
> Thanks,
> 
> Tomohiro
> 
> 2009/12/3 Daniel S. Katz <dsk at ci.uchicago.edu>:
>> Hi,
>> 
>> It also might be worth looking at the first HARC paper (http://www.cct.lsu.edu/~maclaren/HARC/Papers/harc-gada-final.pdf), specifically figures 2 and 3, which show 2-phase commit and Paxos commit.  Paxos commit is probably a better protocol for more general situations, though 2-phase commit works well when the "committer" is reliable.
>> 
>> Dan (wishing to have more time to participate in these discussions rather than just reading the emails some of the time)
>> 
>> On Dec 2, 2009, at 7:14 AM, Tomohiro Kudoh wrote:
>> 
>>> Hi all,
>>> 
>>> here is an updated slide.
>>> 
>>> 2009/12/2 Tomohiro Kudoh <t.kudoh at aist.go.jp>:
>>>> Hi all,
>>>> 
>>>> Here is a slide on 2-phase commit.
>>>> Talk to you soon.
>>>> 
>>>> Tomohiro
>>> <2pc-updated.ppt>_______________________________________________
>>> nsi-wg mailing list
>>> nsi-wg at ogf.org
>>> http://www.ogf.org/mailman/listinfo/nsi-wg
>> 
>> --
>> Daniel S. Katz
>> University of Chicago
>> (773) 834-7186 (voice)
>> (773) 834-3700 (fax)
>> d.katz at ieee.org or dsk at ci.uchicago.edu
>> http://www.ci.uchicago.edu/~dsk/
>> 
>> 
>> 
>> 
>> 
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-- 
Daniel S. Katz
University of Chicago
(773) 834-7186 (voice)
(773) 834-3700 (fax)
d.katz at ieee.org or dsk at ci.uchicago.edu
http://www.ci.uchicago.edu/~dsk/